ox.ac.uk

ox.ac.uk is SSL secured

Free website and domain report on ox.ac.uk

Last Updated: 28th May, 2020 Update Now
Overview

Snoop Summary for ox.ac.uk

This is a free and comprehensive report about ox.ac.uk. Ox.ac.uk is hosted in United Kingdom on a server with an IP address of 129.67.242.154, where the local currency is GBP and English is the local language. Our records indicate that ox.ac.uk is owned/operated by The JNT Association. Ox.ac.uk is expected to earn an estimated $2,183 USD per day from advertising revenue. The sale of ox.ac.uk would possibly be worth $1,593,456 USD. This figure is based on the daily revenue potential of the website over a 24 month period. Ox.ac.uk is insanely popular with an estimated 347,861 daily unique visitors. This report was last updated 28th May, 2020.

About ox.ac.uk

Site Preview: ox.ac.uk ox.ac.uk
Title: University of Oxford
Description: The official site for Oxford University.
Keywords and Tags: astrophysics, bodleian library, colleges, education, england, europe, excellent university, libraries, oxford, oxford acceptance rate, oxford library, oxford uni, oxford university, oxford university acceptance rate, popular, reference, research, rhodes scholar, rhodes scholarship, sn2 reaction, tautomerism, top ranking university, uni oxford, united kingdom, universities, university of oxford, university oxford, voltaire, world class university, world leading university
Related Terms:
Fav Icon:
Age: Over 27 years old
Domain Created: 31st July, 1996
Domain Updated:
Domain Expires:
Review

Snoop Score

4/5 (Excellent!)

Valuation

$1,593,456 USD
Note: All valuation figures are estimates.

Popularity

Very High
Note: Popularity is estimated.

Rank, Reach and Authority

Alexa Rank: 5,188
Alexa Reach: 0.0130%
SEMrush Rank (US): 4,140
SEMrush Authority Score: 82
Moz Domain Authority: 0
Moz Page Authority: 0

Rank By Country

Country Alexa Rank
Argentina Flag Argentina 7,395
Australia Flag Australia 3,663
Azerbaijan Flag Azerbaijan 6,322
Bangladesh Flag Bangladesh 2,570
Brazil Flag Brazil 9,631
Canada Flag Canada 7,877
Switzerland Flag Switzerland 5,178
Germany Flag Germany 3,407
Egypt Flag Egypt 5,189
Ethiopia Flag Ethiopia 1,176
United Kingdom Flag United Kingdom 457
Hong Kong Flag Hong Kong 3,640
Indonesia Flag Indonesia 6,029
India Flag India 3,717
Iran, Islamic Republic Of Flag Iran, Islamic Republic Of 12,599
Italy Flag Italy 3,782
Japan Flag Japan 9,686
Kenya Flag Kenya 1,842
Mexico Flag Mexico 11,070
Malaysia Flag Malaysia 2,688
Nigeria Flag Nigeria 2,011
Philippines Flag Philippines 5,522
Pakistan Flag Pakistan 5,466
Russian Federation Flag Russian Federation 14,733
Saudi Arabia Flag Saudi Arabia 3,742
Singapore Flag Singapore 6,180
Turkey Flag Turkey 11,547
Uganda Flag Uganda 632
United States Flag United States 5,901
South Africa Flag South Africa 2,164

Organic vs Paid (Google Ads)

Organic Paid
Keywords: 781,559 185
Traffic: 748,440 5,088
Cost: $617,646 USD $16,868 USD
Traffic

Visitors

Daily Visitors: 347,861
Monthly Visitors: 10,587,803
Yearly Visitors: 126,969,387
Note: All visitors figures are estimates.

Visitors By Country

Country Visitors (Unique) Percentage
Argentina Flag Argentina Daily: 1,739
Monthly: 52,939
Yearly: 634,847
0.5%
Australia Flag Australia Daily: 6,957
Monthly: 211,756
Yearly: 2,539,388
2%
Azerbaijan Flag Azerbaijan Daily: 2,435
Monthly: 74,115
Yearly: 888,786
0.7%
Bangladesh Flag Bangladesh Daily: 2,783
Monthly: 84,702
Yearly: 1,015,755
0.8%
Brazil Flag Brazil Daily: 7,305
Monthly: 222,344
Yearly: 2,666,357
2.1%
Canada Flag Canada Daily: 4,870
Monthly: 148,229
Yearly: 1,777,571
1.4%
Switzerland Flag Switzerland Daily: 2,783
Monthly: 84,702
Yearly: 1,015,755
0.8%
Germany Flag Germany Daily: 19,132
Monthly: 582,329
Yearly: 6,983,316
5.5%
Egypt Flag Egypt Daily: 4,174
Monthly: 127,054
Yearly: 1,523,633
1.2%
Ethiopia Flag Ethiopia Daily: 2,435
Monthly: 74,115
Yearly: 888,786
0.7%
United Kingdom Flag United Kingdom Daily: 43,831
Monthly: 1,334,063
Yearly: 15,998,143
12.6%
Hong Kong Flag Hong Kong Daily: 3,479
Monthly: 105,878
Yearly: 1,269,694
1%
Indonesia Flag Indonesia Daily: 3,479
Monthly: 105,878
Yearly: 1,269,694
1%
India Flag India Daily: 44,178
Monthly: 1,344,651
Yearly: 16,125,112
12.7%
Iran, Islamic Republic Of Flag Iran, Islamic Republic Of Daily: 3,131
Monthly: 95,290
Yearly: 1,142,724
0.9%
Italy Flag Italy Daily: 9,044
Monthly: 275,283
Yearly: 3,301,204
2.6%
Japan Flag Japan Daily: 13,914
Monthly: 423,512
Yearly: 5,078,775
4%
Kenya Flag Kenya Daily: 1,739
Monthly: 52,939
Yearly: 634,847
0.5%
Mexico Flag Mexico Daily: 3,479
Monthly: 105,878
Yearly: 1,269,694
1%
Malaysia Flag Malaysia Daily: 3,479
Monthly: 105,878
Yearly: 1,269,694
1%
Nigeria Flag Nigeria Daily: 8,349
Monthly: 254,107
Yearly: 3,047,265
2.4%
Other Daily: 80,704
Monthly: 2,456,370
Yearly: 29,456,898
23.2%
Philippines Flag Philippines Daily: 2,087
Monthly: 63,527
Yearly: 761,816
0.6%
Pakistan Flag Pakistan Daily: 4,174
Monthly: 127,054
Yearly: 1,523,633
1.2%
Russian Federation Flag Russian Federation Daily: 3,826
Monthly: 116,466
Yearly: 1,396,663
1.1%
Saudi Arabia Flag Saudi Arabia Daily: 3,479
Monthly: 105,878
Yearly: 1,269,694
1%
Singapore Flag Singapore Daily: 2,435
Monthly: 74,115
Yearly: 888,786
0.7%
Turkey Flag Turkey Daily: 3,479
Monthly: 105,878
Yearly: 1,269,694
1%
Uganda Flag Uganda Daily: 2,783
Monthly: 84,702
Yearly: 1,015,755
0.8%
United States Flag United States Daily: 45,918
Monthly: 1,397,590
Yearly: 16,759,959
13.2%
South Africa Flag South Africa Daily: 6,262
Monthly: 190,580
Yearly: 2,285,449
1.8%
Note: All visitors figures are estimates.
Revenue

Revenue

Daily Revenue: $2,183 USD
Monthly Revenue: $66,438 USD
Yearly Revenue: $796,723 USD
Note: All revenue figures are estimates.

Revenue By Country

Country Revenue Percentage
Argentina Flag Argentina Daily: $0 USD
Monthly: $8 USD
Yearly: $92 USD
<0.1%
Australia Flag Australia Daily: $13 USD
Monthly: $406 USD
Yearly: $4,863 USD
0.6%
Azerbaijan Flag Azerbaijan Daily: $0 USD
Monthly: $4 USD
Yearly: $47 USD
<0.1%
Bangladesh Flag Bangladesh Daily: $1 USD
Monthly: $23 USD
Yearly: $281 USD
<0.1%
Brazil Flag Brazil Daily: $6 USD
Monthly: $173 USD
Yearly: $2,080 USD
0.3%
Canada Flag Canada Daily: $14 USD
Monthly: $420 USD
Yearly: $5,039 USD
0.6%
Switzerland Flag Switzerland Daily: $2 USD
Monthly: $75 USD
Yearly: $896 USD
0.1%
Germany Flag Germany Daily: $80 USD
Monthly: $2,447 USD
Yearly: $29,344 USD
3.7%
Egypt Flag Egypt Daily: $1 USD
Monthly: $16 USD
Yearly: $192 USD
<0.1%
Ethiopia Flag Ethiopia Daily: $0 USD
Monthly: $5 USD
Yearly: $65 USD
<0.1%
United Kingdom Flag United Kingdom Daily: $229 USD
Monthly: $6,957 USD
Yearly: $83,423 USD
10.5%
Hong Kong Flag Hong Kong Daily: $1 USD
Monthly: $22 USD
Yearly: $261 USD
<0.1%
Indonesia Flag Indonesia Daily: $4 USD
Monthly: $116 USD
Yearly: $1,394 USD
0.2%
India Flag India Daily: $207 USD
Monthly: $6,303 USD
Yearly: $75,582 USD
9.5%
Iran, Islamic Republic Of Flag Iran, Islamic Republic Of Daily: $0 USD
Monthly: $0 USD
Yearly: $0 USD
<0.1%
Italy Flag Italy Daily: $9 USD
Monthly: $264 USD
Yearly: $3,169 USD
0.4%
Japan Flag Japan Daily: $11 USD
Monthly: $336 USD
Yearly: $4,027 USD
0.5%
Kenya Flag Kenya Daily: $0 USD
Monthly: $6 USD
Yearly: $69 USD
<0.1%
Mexico Flag Mexico Daily: $1 USD
Monthly: $44 USD
Yearly: $526 USD
0.1%
Malaysia Flag Malaysia Daily: $2 USD
Monthly: $62 USD
Yearly: $745 USD
0.1%
Nigeria Flag Nigeria Daily: $3 USD
Monthly: $102 USD
Yearly: $1,220 USD
0.2%
Other Daily: $0 USD
Monthly: $0 USD
Yearly: $0 USD
<0.1%
Philippines Flag Philippines Daily: $1 USD
Monthly: $40 USD
Yearly: $475 USD
0.1%
Pakistan Flag Pakistan Daily: $3 USD
Monthly: $83 USD
Yearly: $994 USD
0.1%
Russian Federation Flag Russian Federation Daily: $1 USD
Monthly: $33 USD
Yearly: $402 USD
0.1%
Saudi Arabia Flag Saudi Arabia Daily: $1 USD
Monthly: $38 USD
Yearly: $460 USD
0.1%
Singapore Flag Singapore Daily: $1 USD
Monthly: $24 USD
Yearly: $288 USD
<0.1%
Turkey Flag Turkey Daily: $2 USD
Monthly: $61 USD
Yearly: $728 USD
0.1%
Uganda Flag Uganda Daily: $0 USD
Monthly: $2 USD
Yearly: $30 USD
<0.1%
United States Flag United States Daily: $1,581 USD
Monthly: $48,130 USD
Yearly: $577,178 USD
72.4%
South Africa Flag South Africa Daily: $8 USD
Monthly: $238 USD
Yearly: $2,853 USD
0.4%
Note: All revenue figures are estimates.
SEO

Backlinks Analysis (SEMrush)

Backlinks: 28,113,209
Referring Domains: 167,014
Referring IPs: 147,980
Ox.ac.uk has 28,113,209 backlinks according to SEMrush. 82% of these backlinks are "dofollow" (follow) links which allow the flow of link equity to pass through, which may improve ox.ac.uk's search engine rankings. Other links are treated as 'hints' by search engines and may also pass link equity, depending on what search engines decide in each case.
100% of ox.ac.uk's backlinks are text and image links, which are ideal for SEO. Other backlink types may be unrecognized or ignored by search engines.

Top New Follow Links

1
Source: http://www.iaitew.me/
Target: http://compton.chem.ox.ac.uk/people/images/2011/cf.jpg

2
Source: http://www.iaitew.me/
Target: https://innovation.ox.ac.uk/wp-content/uploads/2014/09/NasirHamid03.jpg

3
Source: http://www.iaitew.me/
Target: http://www.ox.ac.uk/sites/files/oxford/styles/ow_medium_feature/public/field/field_image_main/Oxford_PAX003429-01_SuperRes_0.JPG?itok=7W--PLul

4
Source: http://www.iaitew.me/
Target: http://www.ox.ac.uk/sites/files/oxford/styles/ow_medium_feature/public/field/field_image_main/Oxford_skyline_0.jpg?itok=DywmK1Mx

5
Source: https://www.rcog.org.uk/en/guidelines-research-services/guidelines/coronavirus-pregnancy/covid-19-virus-infection-and-pregnancy/
Target: https://www.npeu.ox.ac.uk/news/1963-pregnant-women-are-not-at-greater-risk-of-severe-covid-19-than-other-women-but-most-of-those-who-have-problems-are-in-their-third-trimester

Top Ranking Keywords (US)

1
Keyword: oxford
Ranked Page: http://www.ox.ac.uk/

2
Keyword: oxford university
Ranked Page: http://www.ox.ac.uk/

3
Keyword: rhodes scholar
Ranked Page: https://www.rhodeshouse.ox.ac.uk/office-of-the-american-secretary/

4
Keyword: rhodes scholarship
Ranked Page: https://www.rhodeshouse.ox.ac.uk/scholarships/the-rhodes-scholarship/

5
Keyword: tautomerism
Ranked Page: http://www.chem.ox.ac.uk/vrchemistry/nor/notes/tautomers.htm

Domain Analysis

Value Length
Domain: ox.ac.uk 8
Domain Name: ox 2
Extension (TLD): acuk 4

Page Speed Analysis

Average Load Time: 1.72 seconds
Load Time Comparison: Faster than 52% of sites

PageSpeed Insights

Avg. (All Categories) 78
Performance 68
Accessibility 96
Best Practices 85
SEO 100
Progressive Web App 41
0–49 (Fail) 50–89 (Average) 90–100 (Pass)
URL: http://www.ox.ac.uk/
Updated: 28th May, 2020

2.40 seconds
First Contentful Paint (FCP)
42%
40%
18%

0.00 seconds
First Input Delay (FID)
99%
1%
0%

Simulate loading on desktop
68

Performance

Indicates how well the page is performing and highlights opportunities where performance may be improved for ox.ac.uk. This includes details about optimizing page load times which can result in a better user experience.

Metrics

Time to Interactive — 1.7 s
The time taken for the page to become fully interactive.
Total Blocking Time — 60 ms
The total blocking time is the sum of all time periods between First Contentful Paint and Time to Interactive (when task length exceeded 50ms).

Other

First CPU Idle — 1.3 s
The time taken for the page's main thread to be quiet enough to handle input.
Max Potential First Input Delay — 110 ms
Users could experience a delay when interacting with the page.
Estimated Input Latency — 10 ms
The time taken for the page to respond to user input (during the busiest 5 second window of page load). Users are likely to perceive ox.ac.uk as laggy when the latency is higher than 0.05 seconds.
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1317.8310000221
11423
11064
200
image/jpeg
Image
http://www.ox.ac.uk/sites/files/oxford/styles/ow_small_highlight/public/disc_pod_biology_garden.jpg?itok=O69urG1M
1113.8809999975
1301.7390000168
21228
20872
200
image/jpeg
Image
http://www.ox.ac.uk/sites/files/oxford/styles/ow_small_highlight/public/disc_oxplore_laws.jpg?itok=zvVBBQc2
1114.0410000226
1303.0370000051
21842
21484
200
image/jpeg
Image
http://www.ox.ac.uk/sites/files/oxford/styles/ow_small_highlight/public/media-youtube/KJoR2hkqdsQ.jpg?itok=cAlvsUbo
1114.6989999979
1395.9719999984
20589
20232
200
image/jpeg
Image
http://www.ox.ac.uk/sites/files/oxford/st_ox_undergrad2.jpg
1114.8840000096
1482.2590000113
74109
73750
200
image/jpeg
Image
http://www.ox.ac.uk/sites/files/oxford/st_ox_grad3.jpg
1115.0100000086
1395.2130000107
74758
74400
200
image/jpeg
Image
http://www.ox.ac.uk/sites/files/oxford/st_ox_conted2.jpg
1115.1450000179
1582.0090000052
85038
84681
200
image/jpeg
Image
http://www.ox.ac.uk/sites/files/oxford/st_ox_current4.jpg
1115.2730000031
1484.0060000133
86114
85755
200
image/jpeg
Image
https://www.google-analytics.com/analytics.js
1115.4130000214
1121.5070000035
19102
45892
200
text/javascript
Script
http://connect.facebook.net/en_US/fbevents.js
1115.5330000038
1148.428000015
32972
134009
200
application/x-javascript
Script
http://www.googletagmanager.com/gtm.js?id=GTM-TDB29T
1116.1690000154
1597.242000018
286
0
302
text/html
http://www.ox.ac.uk/sites/default/themes/custom/oxweb/images/oxweb-logo.gif
1135.1730000169
1232.3890000116
3802
3429
200
image/gif
Image
http://www.ox.ac.uk/sites/default/themes/custom/oxweb/images/menu_arrow.png
1135.9010000015
1319.4800000056
629
256
200
image/png
Image
https://fonts.gstatic.com/s/ptsans/v11/jizaRExUiTo99u79D0KExcOPIDU.woff2
1140.7469999976
1144.1449999984
12029
11380
200
font/woff2
Font
http://www.ox.ac.uk/sites/default/themes/custom/oxweb/images/search-icon.png
1143.888999999
1330.1930000016
825
449
200
image/png
Image
http://www.ox.ac.uk/sites/default/themes/custom/oxweb/images/carousel-chevron-right-large.png
1146.8969999987
1330.9770000051
1495
1122
200
image/png
Image
http://www.ox.ac.uk/sites/default/themes/custom/oxweb/images/carousel-chevron-left-large.png
1147.2369999974
1331.7080000124
1511
1134
200
image/png
Image
http://www.ox.ac.uk/sites/default/themes/custom/oxweb/images/play.png
1151.6629999969
1338.6870000104
1200
838
200
image/png
Image
http://www.ox.ac.uk/sites/default/themes/custom/oxweb/images/discover-shadow.png
1152.5550000079
1339.117000025
7254
6880
200
image/png
Image
http://www.ox.ac.uk/sites/default/themes/custom/oxweb/images/homepage-chevron-discover.png
1152.7730000089
1338.2290000154
1043
666
200
image/png
Image
http://www.ox.ac.uk/sites/default/themes/custom/oxweb/images/highlight-chevron-medium.png
1153.628
1335.070000001
746
370
200
image/png
Image
http://www.ox.ac.uk/sites/default/themes/custom/oxweb/images/oxweb-footer-icons-v4.png
1154.6430000162
1429.8780000245
15814
15435
200
image/png
Image
https://fonts.gstatic.com/s/ptsans/v11/jizfRExUiTo99u79B_mh0O6tLR8a8zI.woff2
1158.282999997
1163.9320000249
12153
11504
200
font/woff2
Font
https://fonts.gstatic.com/s/ptsansnarrow/v11/BngSUXNadjH0qYEzV7ab-oWlsbg95AiFW_3CRs-2.woff2
1159.805000003
1163.3230000152
12100
11452
200
font/woff2
Font
http://js.bizographics.com/insight.min.js
1234.2470000149
1351.9460000098
1890
3578
200
application/x-javascript
Script
http://www.ox.ac.uk/sites/default/themes/custom/oxweb/images/i-sprite.png
1311.710000009
1497.039000009
2755
2378
200
image/png
Image
https://www.googletagmanager.com/gtm.js?id=GTM-TDB29T
1597.4450000213
1631.5920000197
36907
114384
200
application/javascript
Script
https://www.google-analytics.com/collect?v=1&_v=j82&a=291144962&t=pageview&_s=1&dl=http%3A%2F%2Fwww.ox.ac.uk%2F&ul=en-us&de=UTF-8&dt=University%20of%20Oxford&sd=24-bit&sr=800x600&vp=1350x940&je=0&_u=IGBAgAAB~&jid=695956863&gjid=1116768245&cid=388518134.1590664894&tid=UA-53948675-1&_gid=124428702.1590664894&z=1757681192
1719.9630000105
1725.6540000089
643
35
200
image/gif
Image
https://stats.g.doubleclick.net/r/collect?t=dc&aip=1&_r=3&v=1&_v=j82&tid=UA-53948675-1&cid=388518134.1590664894&jid=695956863&gjid=1116768245&_gid=124428702.1590664894&_u=IGBAgAAB~&z=1189046106
1720.1520000235
1724.040000001
703
35
200
image/gif
Image
https://www.google-analytics.com/collect?v=1&_v=j82&a=291144962&t=pageview&_s=1&dl=http%3A%2F%2Fwww.ox.ac.uk%2F&ul=en-us&de=UTF-8&dt=University%20of%20Oxford&sd=24-bit&sr=800x600&vp=1350x940&je=0&_u=IGDAgAAB~&jid=1194640262&gjid=548205378&cid=388518134.1590664894&tid=UA-44722553-1&_gid=124428702.1590664894&z=1430941281
1720.4940000083
1723.4530000133
644
35
200
image/gif
Image
https://stats.g.doubleclick.net/r/collect?t=dc&aip=1&_r=3&v=1&_v=j82&tid=UA-44722553-1&cid=388518134.1590664894&jid=1194640262&gjid=548205378&_gid=124428702.1590664894&_u=IGDAgAAB~&z=1795762968
1720.8950000058
1724.6549999982
703
35
200
image/gif
Image
https://connect.facebook.net/signals/config/867549083324614?v=2.9.18&r=stable
1741.8160000234
1810.4549999989
132937
528734
200
application/x-javascript
Script
https://px.ads.linkedin.com/collect?v=2&fmt=js&pid=9293&url=http%3A%2F%2Fwww.ox.ac.uk%2F&time=1590664893758
1750.1060000213
1817.0020000252
741
0
302
http://www.google-analytics.com/analytics.js
1792.9390000063
1798.0430000171
18844
45892
200
text/javascript
Script
https://www.google-analytics.com/r/collect?v=1&_v=j82&a=291144962&t=pageview&_s=1&dl=http%3A%2F%2Fwww.ox.ac.uk%2F&ul=en-us&de=UTF-8&dt=University%20of%20Oxford&sd=24-bit&sr=800x600&vp=1350x940&je=0&_u=aGDAAAAB~&jid=77883246&gjid=1982199385&cid=388518134.1590664894&tid=UA-1979755-1&_gid=124428702.1590664894&_r=1&gtm=2wg5e1TDB29T&z=1829316596
1813.7590000115
1827.0150000171
797
0
302
text/html
http://rs.gwallet.com/r1/pixel/x21497r1779383
1814.2619999999
1858.9570000186
336
43
200
image/gif
Image
https://px.ads.linkedin.com/collect?v=2&fmt=js&pid=9293&url=http%3A%2F%2Fwww.ox.ac.uk%2F&time=1590664893758&cookiesTest=true
1817.1490000095
1844.4620000082
1037
0
302
https://stats.g.doubleclick.net/r/collect?v=1&aip=1&t=dc&_r=3&tid=UA-1979755-1&cid=388518134.1590664894&jid=77883246&_gid=124428702.1590664894&gjid=1982199385&_v=j82&z=1829316596
1827.1940000122
1831.4560000144
703
35
200
image/gif
Image
https://www.linkedin.com/px/li_sync?redirect=https%3A%2F%2Fpx.ads.linkedin.com%2Fcollect%3Fv%3D2%26fmt%3Djs%26pid%3D9293%26url%3Dhttp%253A%252F%252Fwww.ox.ac.uk%252F%26time%3D1590664893758%26cookiesTest%3Dtrue%26liSync%3Dtrue
1844.6560000011
1957.2869999975
2529
0
302
https://www.facebook.com/tr/?id=867549083324614&ev=PageView&dl=http%3A%2F%2Fwww.ox.ac.uk%2F&rl=&if=false&ts=1590664893897&sw=800&sh=600&v=2.9.18&r=stable&ec=0&o=30&fbp=fb.2.1590664893894.2061639899&it=1590664893749&coo=false&rqm=GET
1890.1040000201
1905.6470000069
591
44
200
image/gif
Image
https://px.ads.linkedin.com/collect?v=2&fmt=js&pid=9293&url=http%3A%2F%2Fwww.ox.ac.uk%2F&time=1590664893758&cookiesTest=true&liSync=true
1957.6400000078
1990.0220000127
545
0
302
https://p.adsymptotic.com/d/px/?_pid=16218&_psign=0aa5badf92527f7732e22463d6fa4dbc&coopa=0&gdpr=0&gdpr_consent=&_puuid=ad0b988e-79b9-4281-9ea4-b9482ef7bb46
1990.2020000154
2026.423000003
819
0
302
https://p.adsymptotic.com/d/px/?_pid=16218&_psign=0aa5badf92527f7732e22463d6fa4dbc&coopa=0&gdpr=0&gdpr_consent=&_puuid=ad0b988e-79b9-4281-9ea4-b9482ef7bb46&_expected_cookie=35f05a285e7791932ca8f04150e052d1
2026.6629999969
2230.7700000238
737
43
200
image/gif
Image
https://www.facebook.com/tr/?id=867549083324614&ev=Microdata&dl=http%3A%2F%2Fwww.ox.ac.uk%2F&rl=&if=false&ts=1590664895404&cd[DataLayer]=%5B%5D&cd[Meta]=%7B%22title%22%3A%22University%20of%20Oxford%22%2C%22meta%3Adescription%22%3A%22The%20University%20of%20Oxford%20is%20one%20of%20the%20leading%20universities%20in%20the%20world.%22%2C%22meta%3Akeywords%22%3A%22University%20of%20Oxford%2C%20university%20oxford%2C%20uni%20oxford%2C%20oxford%2C%20oxford%20university%2C%20oxford%20uni%2C%20world%20class%20university%2C%20top%20ranking%20university%2C%20excellent%20university%2C%20world%20leading%20university%22%7D&cd[OpenGraph]=%7B%7D&cd[Schema.org]=%5B%5D&cd[JSON-LD]=%5B%5D&sw=800&sh=600&v=2.9.18&r=stable&ec=1&o=30&fbp=fb.2.1590664893894.2061639899&it=1590664893749&coo=false&es=automatic&tm=3&rqm=GET
3398.2290000131
3414.0350000234
441
44
200
image/gif
Image
Network Round Trip Times — 0 ms
High Network RTT (Round Trip Times) can have a large impact on performance. Providing servers geographically closer to the user could improve performance.
Server Backend Latencies — 0 ms
High server latencies indicate the server is overloaded or has a poor backend performance.
Tasks
Below is a list of the top-level main thread tasks that executed during page load.
Start Time (Ms) End Time (Ms)
563.051
9.859
578.99
8.654
870.65
5.362
968.164
12.17
980.39
37.692
1131.913
20.916
1152.851
107.668
1262.214
355.993
1618.25
8.525
1658.835
46.051
1705.006
45.842
1754.777
16.919
1788.907
9.705
1798.891
45.269
1850.135
5.567
1858.025
6.938
1875.619
44.452
1921.063
48.262
1969.346
6.473
2262.224
19.61
2480.568
8.104
2943.678
5.652
Diagnostics
Below is a collection of useful page vitals.
View Data
Metrics
Below is a collection of metrics.
View Data

Opportunities

Defer offscreen images
Time to Interactive can be slowed down by resources on the page. Ox.ac.uk should consider lazy-loading offscreen and hidden images.
Minify CSS
Cascading Style Sheets (CSS) files can contribute to network payload sizes. Ox.ac.uk should consider minifying CSS files.
Minify JavaScript — Potential savings of 33 KB
JavaScript (JS) files can contribute to network payload sizes and increase script parse times. Ox.ac.uk should consider minifying JS files.
URL Transfer Size (Bytes) Potential Savings (Bytes)
http://www.ox.ac.uk/sites/files/oxford/advagg_js/js__NApEfNetOv0iKOaiS8Z3hqHIRkgSK5NwyYcTjOiwNcs__DsOLEZi70ZYVkeyJ_wTYy723Ek4wbjK2L0iW8usayxk__fbry9Bhk4KPa1wzS3Jf4Jjr9yRPFaPHmDmEC2QLEZW4.js
55458
15914
http://www.ox.ac.uk/sites/files/oxford/advagg_js/js__eFj6HcVmig9Aay_7Um3eWoM2cDe1fjF-D-bHlJ9rXSk__dmMuBkVonu1MlrBmR5BSEnintIpEkYAsiESJfXVgg-A__fbry9Bhk4KPa1wzS3Jf4Jjr9yRPFaPHmDmEC2QLEZW4.js
48543
7864
http://www.ox.ac.uk/sites/files/oxford/advagg_js/js__T73ujsOjK-1cyTby7fEe8eK8r1o3_6UM-pyXbhgxLPM__uKP6bdssouSeSOO3xvX5BqOp2WaFmA0I2Uj15IUGujs__fbry9Bhk4KPa1wzS3Jf4Jjr9yRPFaPHmDmEC2QLEZW4.js
9448
5519
http://www.ox.ac.uk/sites/files/oxford/advagg_js/js__3RwaX_CyL00BOCuhktGmr0WtamfzBOPH7m6bCt5miZI__A9yCXajg0FXfF1Z5Xmia4bOijJ58UqeG8OCKKh1T3eI__fbry9Bhk4KPa1wzS3Jf4Jjr9yRPFaPHmDmEC2QLEZW4.js
9797
2344
http://www.ox.ac.uk/sites/files/oxford/advagg_js/js__sTOYibCHX3PjvTSi945x_NFLxlyRyMdT-ekCCJgHakQ__3bWUIJ3JZ0ZF7uiKcklHzm7eKrtTjqfQnPGw3AQb8QA__fbry9Bhk4KPa1wzS3Jf4Jjr9yRPFaPHmDmEC2QLEZW4.js
4050
2227
Remove unused JavaScript — Potential savings of 225 KB
It is advised to remove unused JavaScript in order to reduce bytes consumed by network activity.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://connect.facebook.net/signals/config/867549083324614?v=2.9.18&r=stable
132937
114292
http://www.ox.ac.uk/sites/files/oxford/advagg_js/js__NApEfNetOv0iKOaiS8Z3hqHIRkgSK5NwyYcTjOiwNcs__DsOLEZi70ZYVkeyJ_wTYy723Ek4wbjK2L0iW8usayxk__fbry9Bhk4KPa1wzS3Jf4Jjr9yRPFaPHmDmEC2QLEZW4.js
55458
30719
http://www.ox.ac.uk/sites/files/oxford/advagg_js/js__eFj6HcVmig9Aay_7Um3eWoM2cDe1fjF-D-bHlJ9rXSk__dmMuBkVonu1MlrBmR5BSEnintIpEkYAsiESJfXVgg-A__fbry9Bhk4KPa1wzS3Jf4Jjr9yRPFaPHmDmEC2QLEZW4.js
48543
17128
http://connect.facebook.net/en_US/fbevents.js
32972
17035
http://www.google-analytics.com/analytics.js
18844
15214
https://www.googletagmanager.com/gtm.js?id=GTM-TDB29T
36907
12181
http://www.ox.ac.uk/sites/files/oxford/advagg_js/js__T73ujsOjK-1cyTby7fEe8eK8r1o3_6UM-pyXbhgxLPM__uKP6bdssouSeSOO3xvX5BqOp2WaFmA0I2Uj15IUGujs__fbry9Bhk4KPa1wzS3Jf4Jjr9yRPFaPHmDmEC2QLEZW4.js
9448
6605
http://www.ox.ac.uk/sites/files/oxford/advagg_js/js__3RwaX_CyL00BOCuhktGmr0WtamfzBOPH7m6bCt5miZI__A9yCXajg0FXfF1Z5Xmia4bOijJ58UqeG8OCKKh1T3eI__fbry9Bhk4KPa1wzS3Jf4Jjr9yRPFaPHmDmEC2QLEZW4.js
9797
6458
https://www.google-analytics.com/analytics.js
19102
5975
http://www.ox.ac.uk/sites/files/oxford/advagg_js/js__5AkQ32eKyH4bHoZwRq2mAxZB8_fSkxwahmo58o-EFPg__64vo-p6wGFVXXMmx55KeVAQhVLIOf8WJOl3q1cYitjw__fbry9Bhk4KPa1wzS3Jf4Jjr9yRPFaPHmDmEC2QLEZW4.js
3954
2888
http://www.ox.ac.uk/sites/files/oxford/advagg_js/js__sTOYibCHX3PjvTSi945x_NFLxlyRyMdT-ekCCJgHakQ__3bWUIJ3JZ0ZF7uiKcklHzm7eKrtTjqfQnPGw3AQb8QA__fbry9Bhk4KPa1wzS3Jf4Jjr9yRPFaPHmDmEC2QLEZW4.js
4050
2109
Efficiently encode images — Potential savings of 112 KB
Unoptimized images can consume more cellular data than what is necessary.
URL Resource Size (Bytes) Potential Savings (Bytes)
http://www.ox.ac.uk/sites/files/oxford/st_ox_conted2.jpg
84681
31948
http://www.ox.ac.uk/sites/files/oxford/st_ox_grad3.jpg
74400
29694
http://www.ox.ac.uk/sites/files/oxford/st_ox_current4.jpg
85755
29089
http://www.ox.ac.uk/sites/files/oxford/st_ox_undergrad2.jpg
73750
24442
Enable text compression
Text-based resources should be served with compression, such as gzip, deflate or brotli.
Preconnect to required origins
Resource hints, such as 'preconnect' or 'dns-prefetch', may assist in establishing early connections to important third-party origins.
Initial server response time was short — Root document took 310 ms
It is advised to keep the server response time short for the main document, because all other requests depend on it.
Avoid multiple page redirects — Potential savings of 190 ms
Redirects can cause additional delays before the page can begin loading. Ox.ac.uk should avoid multiple or unnecessary page redirects.
URL Time Spent (Ms)
(Start) http://ox.ac.uk/
0
http://www.ox.ac.uk/
190
Preload key requests
Key requests can be preloaded by using '<link rel=preload>'. Ox.ac.uk should consider using '<link rel=preload>' to prioritize fetching resources that are currently requested later in page load.
Use video formats for animated content
Large GIFs are inefficient for delivering animated content. It is recommended to use MPEG4/WebM videos for animations and PNG/WebP for static images instead of GIF.

Diagnostics

Avoids enormous network payloads — Total size was 2,048 KB
Large network payloads can cost users money and are linked to long load times.
URL Transfer Size (Bytes)
http://www.ox.ac.uk/sites/files/oxford/styles/ow_large_feature/public/Ox-at-home-web-banners-02.png?itok=l2wr5kXJ
360895
http://www.ox.ac.uk/sites/files/oxford/styles/ow_large_feature/public/field/field_image_main/GAF-Library-Window-Victoria-Maguire-Rajpaul.jpg?itok=0BMjxL4P
209803
http://www.ox.ac.uk/sites/files/oxford/styles/ow_large_feature/public/bcar_conted_connections.jpg?itok=4ghf_ED8
155538
http://www.ox.ac.uk/sites/files/oxford/styles/ow_large_feature/public/bcar_ug_studetns-in-line.jpg?itok=vtnjFA_j
147177
https://connect.facebook.net/signals/config/867549083324614?v=2.9.18&r=stable
132937
http://www.ox.ac.uk/sites/files/oxford/styles/ow_large_feature/public/bcar_coronavirus_illustration_redblue.jpg?itok=xHyBWtXR
122054
http://www.ox.ac.uk/sites/files/oxford/st_ox_current4.jpg
86114
http://www.ox.ac.uk/sites/files/oxford/st_ox_conted2.jpg
85038
http://www.ox.ac.uk/sites/files/oxford/st_ox_grad3.jpg
74758
http://www.ox.ac.uk/sites/files/oxford/st_ox_undergrad2.jpg
74109
Avoid chaining critical requests — 17 chains found
Below is a list of Critical Request Chains, which shows which resources are loaded with a high priority. Ox.ac.uk should consider reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.
User Timing marks and measures
Make use of the User Timing API to measure an app's real-world performance during key user experiences.
JavaScript execution time — 0.4 s
JavaScript (JS) execution time can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.
URL Total CPU Time (Ms) Script Evaluation (Ms) Script Parse (Ms)
http://www.ox.ac.uk/sites/files/oxford/advagg_js/js__eFj6HcVmig9Aay_7Um3eWoM2cDe1fjF-D-bHlJ9rXSk__dmMuBkVonu1MlrBmR5BSEnintIpEkYAsiESJfXVgg-A__fbry9Bhk4KPa1wzS3Jf4Jjr9yRPFaPHmDmEC2QLEZW4.js
483.908
270.571
4.385
http://www.ox.ac.uk/
279.04
7.069
3.014
Unattributable
83.778
3.289
1.101
https://www.googletagmanager.com/gtm.js?id=GTM-TDB29T
65.464
58.036
4.019
Minimizes main-thread work — 1.1 s
Main-thread work timing can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.
Category Time Spent (Ms)
Script Evaluation
440.242
Style & Layout
345.142
Other
130.535
Rendering
76.515
Parse HTML & CSS
46.243
Script Parsing & Compilation
38.44
Keep request counts low and transfer sizes small — 74 requests • 2,048 KB
It is advised to add a budgets.json file in order to set budgets for the quantity and size of page resources.
Resource Type Requests Transfer Size (Bytes)
Total
74
2097299
Image
41
1577478
Script
13
374929
Stylesheet
8
82858
Font
3
36282
Document
1
18549
Other
8
7203
Media
0
0
Third-party
26
293336
Minimize third-party usage — Third-party code blocked the main thread for 0 ms
It is advised to either limit, remove or delay the loading of redundant third-party code which may be significantly impacting load performance.
Third-Party Transfer Size (Bytes) Main-Thread Blocking Time (Ms)
166941
0
40030
0
38429
0
37193
0
2529
0
2109
0
1890
0
Largest Contentful Paint element — 1 element found
The element which was identified as the Largest Contentful Paint.
Element
Avoid large layout shifts — No elements found
Below is a list of all DOM elements that contribute to the CLS of the page.
Uses passive listeners to improve scrolling performance
Improve the page's scroll performance by marking touch and wheel event listeners as 'passive'.
Avoids `document.write()`
Avoid or limit the use of external scripts that are dynamically injected via 'document.write()' as users on slow connections will be delayed by tens of seconds.

Budgets

Performance budget
It is advised to keep the quantity and size of all network requests under the targets set by the provided performance budget.
Timing budget
It is advised to set a timing budget to monitor the performance of your site.

Metrics

First Contentful Paint — 1.2 s
The time taken for the first image or text on the page to be rendered.
Speed Index — 1.8 s
The time taken for the page contents to be visibly populated.

Other

First Meaningful Paint — 1.3 s
The time taken for the primary content of the page to be rendered.

Opportunities

Eliminate render-blocking resources — Potential savings of 720 ms
Resources, such as JavaScript and style sheets, can block the first paint of the page. Ox.ac.uk should consider delivering critical JavaScript/style sheets (JS/CSS) inline and deferring all non-critical JS/CSS.
URL Transfer Size (Bytes) Potential Savings (Ms)
http://www.ox.ac.uk/sites/files/oxford/advagg_css/css__BJ6Ou6QsBRtnFTmxaakamOIS8n4QswDP2XnnZ1sxtaM__NBuvkP6eInGIkb1aJvUHx5PX79XApuxBDkk_77W5tYk__fbry9Bhk4KPa1wzS3Jf4Jjr9yRPFaPHmDmEC2QLEZW4.css
2895
70
http://www.ox.ac.uk/sites/files/oxford/advagg_css/css__U1fc3nTroqQE5sCesRy4zXar7vidHU6jeUqVxRJ44kY__W-CP_u2xrHndNa1WiWx3v_PVbgVdtRChNsbhkytKLyo__fbry9Bhk4KPa1wzS3Jf4Jjr9yRPFaPHmDmEC2QLEZW4.css
3721
110
http://www.ox.ac.uk/sites/files/oxford/advagg_css/css__2DiFAmqocr834fiQgsml1ZTXpE2liQHLzvCh6LeRCF8__uUqS4ZFyMjJ1fdA0lVC_adQKckkv30XNPDMwlQWo5OY__fbry9Bhk4KPa1wzS3Jf4Jjr9yRPFaPHmDmEC2QLEZW4.css
1634
110
https://fonts.googleapis.com/css?family=PT+Sans:400,700,400italic,700italic|PT+Sans+Narrow:400,700|PT+Serif:400,700,400italic&subset=latin,latin-ext
2147
230
http://www.ox.ac.uk/sites/files/oxford/advagg_css/css__0kUF_ilL830aGAGK9RANvTULJx1g8NNDYTgkF-dltRI__Np7ImczCWrNGG5ti4v6b5ya_nxTFD_Mm0qNjou0IDh8__fbry9Bhk4KPa1wzS3Jf4Jjr9yRPFaPHmDmEC2QLEZW4.css
46674
390
http://www.ox.ac.uk/sites/files/oxford/advagg_css/css__epHs2kAdMCuFAo6Rhjd1tjvm9avs1cgHqk4LC_6ijHY__O1I-osxkm86tiBj_yCjFKm6WexqqjupZo_L-l87pKG4__fbry9Bhk4KPa1wzS3Jf4Jjr9yRPFaPHmDmEC2QLEZW4.css
6331
150
http://www.ox.ac.uk/sites/files/oxford/advagg_css/css__g1nfo-wgRGwmaA0Ok_CrQ9DOFmFihksw_pmIkXEwemc__QFvIHg88lyC8i-u0slPHBVSnruqJCHY57I7ORFqwBhg__fbry9Bhk4KPa1wzS3Jf4Jjr9yRPFaPHmDmEC2QLEZW4.css
16638
230
http://www.ox.ac.uk/sites/files/oxford/advagg_js/js__eFj6HcVmig9Aay_7Um3eWoM2cDe1fjF-D-bHlJ9rXSk__dmMuBkVonu1MlrBmR5BSEnintIpEkYAsiESJfXVgg-A__fbry9Bhk4KPa1wzS3Jf4Jjr9yRPFaPHmDmEC2QLEZW4.js
48543
350
http://www.ox.ac.uk/sites/files/oxford/advagg_js/js__T73ujsOjK-1cyTby7fEe8eK8r1o3_6UM-pyXbhgxLPM__uKP6bdssouSeSOO3xvX5BqOp2WaFmA0I2Uj15IUGujs__fbry9Bhk4KPa1wzS3Jf4Jjr9yRPFaPHmDmEC2QLEZW4.js
9448
150
http://www.ox.ac.uk/sites/files/oxford/advagg_js/js__9o6MTP80DXWHri8ze4nKy9qC5QYGmn5CmTwGsjeqoRs__t7QMh2Q0VAdZOqg2nX8lHHSSz0oEF4l8S4NpWKqSdpE__fbry9Bhk4KPa1wzS3Jf4Jjr9yRPFaPHmDmEC2QLEZW4.js
1027
70
http://www.ox.ac.uk/sites/files/oxford/advagg_js/js__3RwaX_CyL00BOCuhktGmr0WtamfzBOPH7m6bCt5miZI__A9yCXajg0FXfF1Z5Xmia4bOijJ58UqeG8OCKKh1T3eI__fbry9Bhk4KPa1wzS3Jf4Jjr9yRPFaPHmDmEC2QLEZW4.js
9797
150
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3954
70
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4050
70
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55458
230
Properly size images — Potential savings of 468 KB
Images can slow down the page's load time. Ox.ac.uk should consider serving more appropriate-sized images.
URL Resource Size (Bytes) Potential Savings (Bytes)
http://www.ox.ac.uk/sites/files/oxford/styles/ow_large_feature/public/Ox-at-home-web-banners-02.png?itok=l2wr5kXJ
360537
103900
http://www.ox.ac.uk/sites/files/oxford/styles/ow_large_feature/public/field/field_image_main/GAF-Library-Window-Victoria-Maguire-Rajpaul.jpg?itok=0BMjxL4P
209446
60359
http://www.ox.ac.uk/sites/files/oxford/styles/ow_large_feature/public/bcar_conted_connections.jpg?itok=4ghf_ED8
155181
44720
http://www.ox.ac.uk/sites/files/oxford/styles/ow_large_feature/public/bcar_ug_studetns-in-line.jpg?itok=vtnjFA_j
146820
42311
http://www.ox.ac.uk/sites/files/oxford/styles/ow_large_feature/public/bcar_coronavirus_illustration_redblue.jpg?itok=xHyBWtXR
121695
35070
http://www.ox.ac.uk/sites/files/oxford/st_ox_current4.jpg
85755
25443
http://www.ox.ac.uk/sites/files/oxford/st_ox_conted2.jpg
84681
25124
http://www.ox.ac.uk/sites/files/oxford/st_ox_grad3.jpg
74400
22074
http://www.ox.ac.uk/sites/files/oxford/st_ox_undergrad2.jpg
73750
21881
http://www.ox.ac.uk/sites/files/oxford/styles/ow_small_highlight/public/disc_radcam_twilight.jpg?itok=Y2dTVUgL
28974
14148
http://www.ox.ac.uk/sites/files/oxford/styles/ow_small_highlight/public/disc_conv_elephants.jpg?itok=1lN8VX6p
24545
11985
http://www.ox.ac.uk/sites/files/oxford/styles/ow_small_highlight/public/disc_oxplore_laws.jpg?itok=zvVBBQc2
21484
10490
http://www.ox.ac.uk/sites/files/oxford/styles/ow_small_highlight/public/disc_pod_biology_garden.jpg?itok=O69urG1M
20872
10192
http://www.ox.ac.uk/sites/files/oxford/styles/ow_small_highlight/public/media-youtube/KJoR2hkqdsQ.jpg?itok=cAlvsUbo
20232
9879
http://www.ox.ac.uk/sites/files/oxford/styles/ow_small_highlight/public/disc_pod_radc_0.jpg?itok=VI20ky76
16948
8276
http://www.ox.ac.uk/sites/files/oxford/styles/ow_small_highlight/public/disc_dodo_egg.jpg?itok=qOIaSUDv
15819
7724
http://www.ox.ac.uk/sites/files/oxford/styles/ow_listing/public/field/field_image_main/shutterstock_contact%20tracing_resize.jpg?itok=aVUqYKMT
22167
7415
http://www.ox.ac.uk/sites/files/oxford/styles/ow_small_highlight/public/disc_oii_toolkit.jpg?itok=Eo4-QVPY
11064
5402
http://www.ox.ac.uk/sites/files/oxford/styles/ow_small_highlight/public/disc_oup_syringe.jpg?itok=wJo909jz
11029
5385
http://www.ox.ac.uk/sites/files/oxford/styles/ow_listing/public/field/field_image_listing/1621_Anatomy%20of%20Melancholy_Christ%20Church_crop.jpg?itok=9nO-MCR9
12868
4305
http://www.ox.ac.uk/sites/files/oxford/styles/ow_listing/public/field/field_image_listing/Jennerlab2_0.jpg?itok=bek1o2R_
9126
3053
Remove unused CSS — Potential savings of 56 KB
Dead and/or unused rules in Style Sheets (CSS) can contribute to network payload sizes. Ox.ac.uk should consider removing dead rules from style sheets and deferring the loading of CSS not used for above-the-fold content.
URL Transfer Size (Bytes) Potential Savings (Bytes)
http://www.ox.ac.uk/sites/files/oxford/advagg_css/css__0kUF_ilL830aGAGK9RANvTULJx1g8NNDYTgkF-dltRI__Np7ImczCWrNGG5ti4v6b5ya_nxTFD_Mm0qNjou0IDh8__fbry9Bhk4KPa1wzS3Jf4Jjr9yRPFaPHmDmEC2QLEZW4.css
46674
40716
http://www.ox.ac.uk/sites/files/oxford/advagg_css/css__g1nfo-wgRGwmaA0Ok_CrQ9DOFmFihksw_pmIkXEwemc__QFvIHg88lyC8i-u0slPHBVSnruqJCHY57I7ORFqwBhg__fbry9Bhk4KPa1wzS3Jf4Jjr9yRPFaPHmDmEC2QLEZW4.css
16638
16612
Serve images in next-gen formats — Potential savings of 540 KB
Image formats like PNG and JPEG have poor compression when compared to other next-gen formats, such as JPEG 200, JPEG XR and WebP.
URL Resource Size (Bytes) Potential Savings (Bytes)
http://www.ox.ac.uk/sites/files/oxford/styles/ow_large_feature/public/Ox-at-home-web-banners-02.png?itok=l2wr5kXJ
360537
317293
http://www.ox.ac.uk/sites/files/oxford/st_ox_conted2.jpg
84681
48615
http://www.ox.ac.uk/sites/files/oxford/st_ox_grad3.jpg
74400
45758
http://www.ox.ac.uk/sites/files/oxford/st_ox_current4.jpg
85755
45711
http://www.ox.ac.uk/sites/files/oxford/st_ox_undergrad2.jpg
73750
40910
http://www.ox.ac.uk/sites/files/oxford/styles/ow_large_feature/public/bcar_conted_connections.jpg?itok=4ghf_ED8
155181
22433
http://www.ox.ac.uk/sites/files/oxford/styles/ow_large_feature/public/bcar_ug_studetns-in-line.jpg?itok=vtnjFA_j
146820
17862
http://www.ox.ac.uk/sites/files/oxford/styles/ow_large_feature/public/bcar_coronavirus_illustration_redblue.jpg?itok=xHyBWtXR
121695
14885

Diagnostics

Avoid an excessive DOM size — 989 elements
A large DOM (Document Object Model) will increase memory usage, cause longer system calculations as well as costly layout reflows.
Statistic Element Value
Total DOM Elements
989
Maximum DOM Depth
22
Maximum Child Elements
14

Metrics

Largest Contentful Paint — 3.9 s
The timing of the largest text or image that is painted.
Cumulative Layout Shift — 0.306
Cumulative Layout Shift is the measurement of visible elements collective movement within the viewport.
View Data

Diagnostics

Serve static assets with an efficient cache policy — 52 resources found
Ox.ac.uk can speed up repeat visits by increasing the cache lifetime, which is essentially how long before a cached copy expires.
URL Cache TTL (Ms) Transfer Size (Bytes)
http://www.ox.ac.uk/sites/default/themes/custom/oxweb/images/oxweb-footer-icons-v4.png
0
15814
http://www.ox.ac.uk/sites/default/themes/custom/oxweb/images/discover-shadow.png
0
7254
http://www.ox.ac.uk/sites/default/themes/custom/oxweb/images/oxweb-logo.gif
0
3802
http://www.ox.ac.uk/sites/default/themes/custom/oxweb/images/i-sprite.png
0
2755
http://www.ox.ac.uk/sites/default/themes/custom/oxweb/images/carousel-chevron-left-large.png
0
1511
http://www.ox.ac.uk/sites/default/themes/custom/oxweb/images/carousel-chevron-right-large.png
0
1495
http://www.ox.ac.uk/sites/default/themes/custom/oxweb/images/play.png
0
1200
http://www.ox.ac.uk/sites/default/themes/custom/oxweb/images/homepage-chevron-discover.png
0
1043
http://www.ox.ac.uk/sites/default/themes/custom/oxweb/images/search-icon.png
0
825
http://www.ox.ac.uk/sites/default/themes/custom/oxweb/images/highlight-chevron-medium.png
0
746
https://p.adsymptotic.com/d/px/?_pid=16218&_psign=0aa5badf92527f7732e22463d6fa4dbc&coopa=0&gdpr=0&gdpr_consent=&_puuid=ad0b988e-79b9-4281-9ea4-b9482ef7bb46&_expected_cookie=35f05a285e7791932ca8f04150e052d1
0
737
http://www.ox.ac.uk/sites/default/themes/custom/oxweb/images/menu_arrow.png
0
629
https://connect.facebook.net/signals/config/867549083324614?v=2.9.18&r=stable
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http://connect.facebook.net/en_US/fbevents.js
1200000
32972
http://www.ox.ac.uk/sites/files/oxford/styles/ow_large_feature/public/Ox-at-home-web-banners-02.png?itok=l2wr5kXJ
1800000
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1800000
209803
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1800000
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1800000
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1800000
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1800000
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1800000
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1800000
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1800000
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1800000
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1800000
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1800000
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1800000
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1800000
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1800000
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1800000
13224
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1800000
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1800000
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1800000
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1800000
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7200000
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http://www.google-analytics.com/analytics.js
7200000
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Ensure text remains visible during webfont load
Make use of the font-display CSS feature, which will ensure text is user-visible while webfonts are loading.
URL Potential Savings (Ms)
https://fonts.gstatic.com/s/ptsans/v11/jizaRExUiTo99u79D0KExcOPIDU.woff2
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96

Accessibility

Indicates how accessible the page is and highlights opportunities where the page can be made more accessible to users of ox.ac.uk. This includes details about various page attributes that can be optimized.

Navigation

`[accesskey]` values are unique
Access keys assist users with focusing on different parts of the page. Each access key should be unique for proper navigation.
The page contains a heading, skip link, or landmark region
It is advised to provide ways to bypass repetitive content, allowing users to navigate the page efficiently.
`[id]` attributes on active, focusable elements are unique
Ensure all focusable elements have a unique id value to allow them to be visible to users of assistive technologies, like a screen reader.
Heading elements appear in a sequentially-descending order
Properly order all headers and do not skip heading levels to better the navigation and readability for users of assistive technologies, like a screen reader.
No element has a `[tabindex]` value greater than 0
Although technically valid, a tabindex value greater than 0 often creates frustrating experiences for users who rely on assistive technologies.

ARIA

`[aria-*]` attributes match their roles
Avoid mismatching 'aria-*' attributes and their 'role' value, as it invalidates the attribute.
`[aria-hidden="true"]` is not present on the document `<body>`
If aria-hidden=true is set on the document body, assistive technologies, like a screen reader will work inconsistently.
`[aria-hidden="true"]` elements do not contain focusable descendents
Interactive elements within an aria-hidden=true element are unavailable to users of assistive technologies, like a screen reader.
ARIA input fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when an input field does not have an accessible name specified.
`[role]`s have all required `[aria-*]` attributes
Some ARIA roles have required 'aria-*' attributes, which provide essential information about state and functionality.
Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
Some ARIA parent roles cannot perform their intended functions if specific child roles are not used.
`[role]`s are contained by their required parent element
Some ARIA child roles cannot perform their intended functions if specific parent roles are not used.
`[role]` values are valid
All ARIA roles require valid values to perform their intended functions.
ARIA toggle fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when a toggle field does not have an accessible name specified.
`[aria-*]` attributes have valid values
ARIA attributes cannot be interpreted with invalid values when used by screen readers and other assistive technologies.
`[aria-*]` attributes are valid and not misspelled
ARIA attributes cannot be interpreted with invalid names when used by screen readers and other assistive technologies.
ARIA IDs are unique
Ensure all ARIA ID values are unique to prevent elements from being overlooked by assistive technologies, like a screen reader.

Names and labels

Buttons have an accessible name
Buttons become unusable as they are announced simply as "button" when the button does not have an accessible name, when used by screen readers and other assistive technologies.
Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.
No form fields have multiple labels
Having multiple labels for form fields can be confusing to assistive technologies, like a screen reader.
`<frame>` or `<iframe>` elements have a title
Screen reader users and other assistive technology users rely on frame titles to describe the contents of frames.
Image elements have `[alt]` attributes
Provide short and descriptive alternative text where possible on informative elements.
`<input type="image">` elements have `[alt]` text
Input buttons with alternative text assist screen readers and other assistive technology users to understand its purpose.
Form elements have associated labels
Screen readers and other assistive technologies rely on labels to properly announce form controls.
Links have a discernible name
In order to improve the navigation for screen reader and other assistive technology users, use link text that is unique, focusable and discernible.
`<object>` elements have `[alt]` text
It is advised that alt text is used on '<object>' elements in order to provide meaning to screen reader and other assistive technology users, as these technologies are unable to translate non-text content.

Tables and lists

`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
Screen readers and other assistive technologies may produce poor and inaccurate output when definition lists are not properly marked up.
Definition list items are wrapped in `<dl>` elements
In order for screen readers and other assistive technologies to properly announce definition list items ('<dt>' and '<dd>'), they must be wrapped in parent a '<dl>' element.
Presentational `<table>` elements avoid using `<th>`, `<caption>` or the `[summary]` attribute.
It is advised to not include data elements in tables which are used for layout purposes, as it may create confusion for screen reader and other assistive technology users.
Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
Use proper list structure to aid screen readers and other assistive technologies.
List items (`<li>`) are contained within `<ul>` or `<ol>` parent elements
In order for screen readers to announce list items, ensure that list items ('<li>') are contained within parent '<ul>' or '<ol>' tags.
Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that '<td>' cells using the headers attribute only refer to other cells in the same table, to improve screen reader user experience.
`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that table headers refer to some set of cells, to improve screen reader user experience.

Internationalization and localization

`<html>` element has a `[lang]` attribute
It is advised to provide a lang attribute so that screen readers and other assistive technologies are guaranteed to announce the page's text correctly. When not provided, the user's default language setting will be used which may cause inaccuracies.
`<html>` element has a valid value for its `[lang]` attribute
Specify a valid BCP 47 language in order to help screen readers and other assistive technologies announce text properly.
`[lang]` attributes have a valid value
Specify a valid BCP 47 language on elements in order to help screen readers and other assistive technologies announce text properly.

Best practices

The document does not use `<meta http-equiv="refresh">`
Pages that refresh automatically cause a poor user experience as focus is directed back to the top of the page unexpectedly.
`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
For users with low vision who rely on screen magnification, ensure that zooming is not disabled.

Audio and video

`<video>` elements contain a `<track>` element with `[kind="captions"]`
Ox.ac.uk may provide assistance to deaf or hearing-impaired users with captions on videos.
`<video>` elements contain a `<track>` element with `[kind="description"]`
Ox.ac.uk may provide relevant information that dialogue cannot, by using audio descriptions.

Contrast

Background and foreground colors do not have a sufficient contrast ratio.
Many (if not most) users find low-contrast text difficult or impossible to read.
Failing Elements

Manual Checks

The page has a logical tab order
The visual layout should be logical in its tab order and users cannot focus elements that are offscreen.
Interactive controls are keyboard focusable
Ensure that custom interactive controls are keyboard focusable and that a focus indicator is displayed.
Interactive elements indicate their purpose and state
Ensure that interactive elements (such as links and buttons) are distinguishable from non-interactive elements and that they indicate their state.
The user's focus is directed to new content added to the page
When new content (such as a dialogue) is added to the page, the user's focus should be directed to it.
User focus is not accidentally trapped in a region
Avoid focus being accidentally trapped when a user tabs in and out of controls or regions on page.
Custom controls have associated labels
Ensure that custom interactive controls have associated labels, which are provided by aria-label and aria-labelledby attributes.
Custom controls have ARIA roles
Ensure that all custom interactive controls have appropriate ARIA roles.
Visual order on the page follows DOM order
Ensure that the DOM order matches with the page's visual order, in order to improve navigation for screen readers and other assistive technologies.
Offscreen content is hidden from assistive technology
Ensure that offscreen content is hidden through the use of "display:none" styling or the aria-hidden attribute.
HTML5 landmark elements are used to improve navigation
Elements such as <main> and <nav> are recommended as they are used by screen readers and other assistive technologies to improve keyboard navigation.
85

Best Practices

Indicates the recommended, best practices currently in place on the page and highlights the best practices that ox.ac.uk should incorporate. This includes practices such as protecting pages with HTTPS.

Audits

Links to cross-origin destinations are safe
Improve performance and prevent security vulnerabilities by adding rel="noopener" and rel="noreferrer" to external links.
Avoids requesting the geolocation permission on page load
When requesting a user's location, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.
Avoids requesting the notification permission on page load
When requesting permission to send notifications, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.

Audits

Allows users to paste into password fields
Ensure that password inputs may be pasted into to aid in the user's ability to use password managers and improve security.
Displays images with correct aspect ratio
Ensure that image display dimensions match their natural aspect ratio.
Displays images with appropriate size
For maximum image clarity, ensure images have natural dimensions and are proportional to the display size and pixel ratio.

Audits

Page has the HTML doctype
Ensure a doctype is specified to prevent the browser from switching to quirks-mode.
Properly defines charset
It is advised to declare a character encoding, optionally via a <meta> tag in the first 1024 bytes of the HTML or in the Content-Type HTTP response header.

Audits

Avoids Application Cache
Application cache is deprecated and is no longer recommended.
Detected JavaScript libraries
Below is a list of all front-end JavaScript libraries that were detected on the page.
Name Version
jQuery
1.10.2
core-js
3.0.0: pure
Avoids deprecated APIs
Avoid deprecated APIs which will eventually be removed the browser.
No browser errors logged to the console
Below is a list of all errors logged to the console, which indicate unresolved problems on the site.

Audits

Does not use HTTPS — 53 insecure requests found
Ensure that all pages are protected with HTTPS (including those that do not handle sensitive data) as HTTPS prevents tampering and passive listening on communications between the app and its users. Additionally, HTTPS is a prerequisite for HTTP/2 and many new web platform APIs.
Insecure URL
http://ox.ac.uk/
http://www.ox.ac.uk/
http://www.ox.ac.uk/sites/files/oxford/advagg_css/css__BJ6Ou6QsBRtnFTmxaakamOIS8n4QswDP2XnnZ1sxtaM__NBuvkP6eInGIkb1aJvUHx5PX79XApuxBDkk_77W5tYk__fbry9Bhk4KPa1wzS3Jf4Jjr9yRPFaPHmDmEC2QLEZW4.css
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http://www.ox.ac.uk/sites/files/oxford/styles/ow_large_feature/public/Ox-at-home-web-banners-02.png?itok=l2wr5kXJ
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http://www.ox.ac.uk/sites/files/oxford/styles/ow_large_feature/public/bcar_ug_studetns-in-line.jpg?itok=vtnjFA_j
http://www.ox.ac.uk/sites/files/oxford/styles/ow_large_feature/public/bcar_conted_connections.jpg?itok=4ghf_ED8
http://www.ox.ac.uk/sites/files/oxford/advagg_css/css__8cRlFoQ-PvnSvxE3iCOXUn3jj8zzed--9_-tAiBveYE__sb8Ujj6tWWssQfu7D3msxBLfh4PrTezTVySEM7hOySI__fbry9Bhk4KPa1wzS3Jf4Jjr9yRPFaPHmDmEC2QLEZW4.css
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http://www.ox.ac.uk/sites/files/oxford/styles/ow_listing/public/field/field_image_listing/Jennerlab2_0.jpg?itok=bek1o2R_
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http://www.ox.ac.uk/sites/files/oxford/styles/ow_small_highlight/public/disc_radcam_twilight.jpg?itok=Y2dTVUgL
http://www.ox.ac.uk/sites/files/oxford/styles/ow_small_highlight/public/disc_conv_elephants.jpg?itok=1lN8VX6p
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http://www.ox.ac.uk/sites/files/oxford/styles/ow_small_highlight/public/disc_oup_syringe.jpg?itok=wJo909jz
http://www.ox.ac.uk/sites/files/oxford/styles/ow_small_highlight/public/disc_oii_toolkit.jpg?itok=Eo4-QVPY
http://www.ox.ac.uk/sites/files/oxford/styles/ow_small_highlight/public/disc_pod_biology_garden.jpg?itok=O69urG1M
http://www.ox.ac.uk/sites/files/oxford/styles/ow_small_highlight/public/disc_oxplore_laws.jpg?itok=zvVBBQc2
http://www.ox.ac.uk/sites/files/oxford/styles/ow_small_highlight/public/media-youtube/KJoR2hkqdsQ.jpg?itok=cAlvsUbo
http://www.ox.ac.uk/sites/files/oxford/st_ox_undergrad2.jpg
http://www.ox.ac.uk/sites/files/oxford/st_ox_grad3.jpg
http://www.ox.ac.uk/sites/files/oxford/st_ox_conted2.jpg
http://www.ox.ac.uk/sites/files/oxford/st_ox_current4.jpg
http://connect.facebook.net/en_US/fbevents.js
http://www.googletagmanager.com/gtm.js?id=GTM-TDB29T
http://www.ox.ac.uk/sites/default/themes/custom/oxweb/images/oxweb-logo.gif
http://www.ox.ac.uk/sites/default/themes/custom/oxweb/images/menu_arrow.png
http://www.ox.ac.uk/sites/default/themes/custom/oxweb/images/search-icon.png
http://www.ox.ac.uk/sites/default/themes/custom/oxweb/images/carousel-chevron-right-large.png
http://www.ox.ac.uk/sites/default/themes/custom/oxweb/images/carousel-chevron-left-large.png
http://www.ox.ac.uk/sites/default/themes/custom/oxweb/images/play.png
http://www.ox.ac.uk/sites/default/themes/custom/oxweb/images/discover-shadow.png
http://www.ox.ac.uk/sites/default/themes/custom/oxweb/images/homepage-chevron-discover.png
http://www.ox.ac.uk/sites/default/themes/custom/oxweb/images/highlight-chevron-medium.png
http://www.ox.ac.uk/sites/default/themes/custom/oxweb/images/oxweb-footer-icons-v4.png
http://js.bizographics.com/insight.min.js
http://www.ox.ac.uk/sites/default/themes/custom/oxweb/images/i-sprite.png
http://www.google-analytics.com/analytics.js
http://rs.gwallet.com/r1/pixel/x21497r1779383
Includes front-end JavaScript libraries with known security vulnerabilities — 4 vulnerabilities detected
Ensure that the use of third-party scripts is minimal and that only trusted third-party scripts are used as some may contain known security vulnerabilities which may be exploited by attackers.
Library Version Vulnerability Count Highest Severity
4
Medium
100

SEO

Indicates how well the page is optimized for ranking in search engines and highlights Search Engine Optimization (SEO) opportunities for ox.ac.uk. This includes optimizations such as providing meta data.

Mobile Friendly

Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of ox.ac.uk on mobile screens.
Document uses legible font sizes
Font sizes of 12px or less are too small to most mobile users without user gestures and further action. Aim for more than 60% of page text to use font sizes greater than 12px.
Tap targets are sized appropriately
Interactive elements (such as buttons and links) should be appropriately spaced, sized and easy enough to select or tap with regard to their surrounding elements.

Content Best Practices

Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.
Document has a meta description
Meta descriptions may be used by search engines when displaying a link to the page and should concisely summarize the page's content.
Links have descriptive text
Make use of descriptive link text to assist search engines in understanding the content.
Image elements have `[alt]` attributes
Provide short and descriptive alternative text where possible on informative elements.
Document has a valid `hreflang`
Search engines can be instructed to list specific versions of a page for a given language or region through the use of hreflang links.
Document has a valid `rel=canonical`
Search engines can be suggested which URL should be shown in search results through the use of canonical links.
Document avoids plugins
The content of plugins cannot be indexed by search engines and many devices either restrict or do not support them.

Crawling and Indexing

Page has successful HTTP status code
Avoid pages with unsuccessful HTTP status codes as they may not be indexed by search engines.
Page isn’t blocked from indexing
Pages that cannot be crawled by search engines cannot be indexed or included in their search results. Ensure that search engines have permission to crawl all pages that should be indexed.
robots.txt is valid
Malformed robots.txt files prevent crawlers from understanding how a site wants to be crawled or indexed, which can be devastating to SEO.

Manual Checks

Structured data is valid
Structured data can be validated through the use of the Structured Data Testing Tool and the Structured Data Linter.
41

Progressive Web App

Indicates how valid the aspects of a Progressive Web App (PWA) are for the page and highlights opportunities to enable/improve the PWA of ox.ac.uk. This includes details about web app manifests.

Fast and reliable

Page load is fast enough on mobile networks
Ensure that the page loads fast enough over a cellular network, to ensure good mobile user experience.

PWA Optimized

Content is sized correctly for the viewport
Ensure that the width of the app's content matches the width of the viewport, otherwise the app might not be optimized for mobile screens.
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of ox.ac.uk on mobile screens.
Contains some content when JavaScript is not available
Apps should display alternative content for when JavaScript is disabled.
Provides a valid `apple-touch-icon`
iOS users of Progressive Web Apps will benefit from an apple touch icon, which can be defined with 'apple-touch-icon', which must point to a non-transparent 192px (or 180px) square PNG.

Fast and reliable

Current page does not respond with a 200 when offline
In order for Progressive Web Apps to be made available offline, ensure that the app is using a service worker.
`start_url` does not respond with a 200 when offline
Consider using a service worker for Progressive Web Apps to ensure greater reliability for the user, in the case of poor network conditions.

Installable

Does not use HTTPS — 53 insecure requests found
Ensure that all pages are protected with HTTPS (including those that do not handle sensitive data) as HTTPS prevents tampering and passive listening on communications between the app and its users. Additionally, HTTPS is a prerequisite for HTTP/2 and many new web platform APIs.
Insecure URL
http://ox.ac.uk/
http://www.ox.ac.uk/
http://www.ox.ac.uk/sites/files/oxford/advagg_css/css__BJ6Ou6QsBRtnFTmxaakamOIS8n4QswDP2XnnZ1sxtaM__NBuvkP6eInGIkb1aJvUHx5PX79XApuxBDkk_77W5tYk__fbry9Bhk4KPa1wzS3Jf4Jjr9yRPFaPHmDmEC2QLEZW4.css
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http://www.ox.ac.uk/sites/files/oxford/advagg_css/css__2DiFAmqocr834fiQgsml1ZTXpE2liQHLzvCh6LeRCF8__uUqS4ZFyMjJ1fdA0lVC_adQKckkv30XNPDMwlQWo5OY__fbry9Bhk4KPa1wzS3Jf4Jjr9yRPFaPHmDmEC2QLEZW4.css
http://www.ox.ac.uk/sites/files/oxford/advagg_css/css__0kUF_ilL830aGAGK9RANvTULJx1g8NNDYTgkF-dltRI__Np7ImczCWrNGG5ti4v6b5ya_nxTFD_Mm0qNjou0IDh8__fbry9Bhk4KPa1wzS3Jf4Jjr9yRPFaPHmDmEC2QLEZW4.css
http://www.ox.ac.uk/sites/files/oxford/advagg_css/css__epHs2kAdMCuFAo6Rhjd1tjvm9avs1cgHqk4LC_6ijHY__O1I-osxkm86tiBj_yCjFKm6WexqqjupZo_L-l87pKG4__fbry9Bhk4KPa1wzS3Jf4Jjr9yRPFaPHmDmEC2QLEZW4.css
http://www.ox.ac.uk/sites/files/oxford/advagg_css/css__g1nfo-wgRGwmaA0Ok_CrQ9DOFmFihksw_pmIkXEwemc__QFvIHg88lyC8i-u0slPHBVSnruqJCHY57I7ORFqwBhg__fbry9Bhk4KPa1wzS3Jf4Jjr9yRPFaPHmDmEC2QLEZW4.css
http://www.ox.ac.uk/sites/files/oxford/advagg_js/js__eFj6HcVmig9Aay_7Um3eWoM2cDe1fjF-D-bHlJ9rXSk__dmMuBkVonu1MlrBmR5BSEnintIpEkYAsiESJfXVgg-A__fbry9Bhk4KPa1wzS3Jf4Jjr9yRPFaPHmDmEC2QLEZW4.js
http://www.ox.ac.uk/sites/files/oxford/advagg_js/js__T73ujsOjK-1cyTby7fEe8eK8r1o3_6UM-pyXbhgxLPM__uKP6bdssouSeSOO3xvX5BqOp2WaFmA0I2Uj15IUGujs__fbry9Bhk4KPa1wzS3Jf4Jjr9yRPFaPHmDmEC2QLEZW4.js
http://www.ox.ac.uk/sites/files/oxford/advagg_js/js__9o6MTP80DXWHri8ze4nKy9qC5QYGmn5CmTwGsjeqoRs__t7QMh2Q0VAdZOqg2nX8lHHSSz0oEF4l8S4NpWKqSdpE__fbry9Bhk4KPa1wzS3Jf4Jjr9yRPFaPHmDmEC2QLEZW4.js
http://www.ox.ac.uk/sites/files/oxford/advagg_js/js__3RwaX_CyL00BOCuhktGmr0WtamfzBOPH7m6bCt5miZI__A9yCXajg0FXfF1Z5Xmia4bOijJ58UqeG8OCKKh1T3eI__fbry9Bhk4KPa1wzS3Jf4Jjr9yRPFaPHmDmEC2QLEZW4.js
http://www.ox.ac.uk/sites/files/oxford/advagg_js/js__5AkQ32eKyH4bHoZwRq2mAxZB8_fSkxwahmo58o-EFPg__64vo-p6wGFVXXMmx55KeVAQhVLIOf8WJOl3q1cYitjw__fbry9Bhk4KPa1wzS3Jf4Jjr9yRPFaPHmDmEC2QLEZW4.js
http://www.ox.ac.uk/sites/files/oxford/advagg_js/js__sTOYibCHX3PjvTSi945x_NFLxlyRyMdT-ekCCJgHakQ__3bWUIJ3JZ0ZF7uiKcklHzm7eKrtTjqfQnPGw3AQb8QA__fbry9Bhk4KPa1wzS3Jf4Jjr9yRPFaPHmDmEC2QLEZW4.js
http://www.ox.ac.uk/sites/files/oxford/advagg_js/js__NApEfNetOv0iKOaiS8Z3hqHIRkgSK5NwyYcTjOiwNcs__DsOLEZi70ZYVkeyJ_wTYy723Ek4wbjK2L0iW8usayxk__fbry9Bhk4KPa1wzS3Jf4Jjr9yRPFaPHmDmEC2QLEZW4.js
http://www.ox.ac.uk/sites/files/oxford/styles/ow_large_feature/public/bcar_coronavirus_illustration_redblue.jpg?itok=xHyBWtXR
http://www.ox.ac.uk/sites/files/oxford/styles/ow_large_feature/public/Ox-at-home-web-banners-02.png?itok=l2wr5kXJ
http://www.ox.ac.uk/sites/files/oxford/styles/ow_large_feature/public/field/field_image_main/GAF-Library-Window-Victoria-Maguire-Rajpaul.jpg?itok=0BMjxL4P
http://www.ox.ac.uk/sites/files/oxford/styles/ow_large_feature/public/bcar_ug_studetns-in-line.jpg?itok=vtnjFA_j
http://www.ox.ac.uk/sites/files/oxford/styles/ow_large_feature/public/bcar_conted_connections.jpg?itok=4ghf_ED8
http://www.ox.ac.uk/sites/files/oxford/advagg_css/css__8cRlFoQ-PvnSvxE3iCOXUn3jj8zzed--9_-tAiBveYE__sb8Ujj6tWWssQfu7D3msxBLfh4PrTezTVySEM7hOySI__fbry9Bhk4KPa1wzS3Jf4Jjr9yRPFaPHmDmEC2QLEZW4.css
http://www.ox.ac.uk/sites/files/oxford/styles/ow_listing/public/field/field_image_main/shutterstock_contact%20tracing_resize.jpg?itok=aVUqYKMT
http://www.ox.ac.uk/sites/files/oxford/styles/ow_listing/public/field/field_image_listing/Jennerlab2_0.jpg?itok=bek1o2R_
http://www.ox.ac.uk/sites/files/oxford/styles/ow_listing/public/field/field_image_listing/1621_Anatomy%20of%20Melancholy_Christ%20Church_crop.jpg?itok=9nO-MCR9
http://www.ox.ac.uk/sites/files/oxford/styles/ow_small_highlight/public/disc_radcam_twilight.jpg?itok=Y2dTVUgL
http://www.ox.ac.uk/sites/files/oxford/styles/ow_small_highlight/public/disc_conv_elephants.jpg?itok=1lN8VX6p
http://www.ox.ac.uk/sites/files/oxford/styles/ow_small_highlight/public/disc_dodo_egg.jpg?itok=qOIaSUDv
http://www.ox.ac.uk/sites/files/oxford/styles/ow_small_highlight/public/disc_pod_radc_0.jpg?itok=VI20ky76
http://www.ox.ac.uk/sites/files/oxford/styles/ow_small_highlight/public/disc_oup_syringe.jpg?itok=wJo909jz
http://www.ox.ac.uk/sites/files/oxford/styles/ow_small_highlight/public/disc_oii_toolkit.jpg?itok=Eo4-QVPY
http://www.ox.ac.uk/sites/files/oxford/styles/ow_small_highlight/public/disc_pod_biology_garden.jpg?itok=O69urG1M
http://www.ox.ac.uk/sites/files/oxford/styles/ow_small_highlight/public/disc_oxplore_laws.jpg?itok=zvVBBQc2
http://www.ox.ac.uk/sites/files/oxford/styles/ow_small_highlight/public/media-youtube/KJoR2hkqdsQ.jpg?itok=cAlvsUbo
http://www.ox.ac.uk/sites/files/oxford/st_ox_undergrad2.jpg
http://www.ox.ac.uk/sites/files/oxford/st_ox_grad3.jpg
http://www.ox.ac.uk/sites/files/oxford/st_ox_conted2.jpg
http://www.ox.ac.uk/sites/files/oxford/st_ox_current4.jpg
http://connect.facebook.net/en_US/fbevents.js
http://www.googletagmanager.com/gtm.js?id=GTM-TDB29T
http://www.ox.ac.uk/sites/default/themes/custom/oxweb/images/oxweb-logo.gif
http://www.ox.ac.uk/sites/default/themes/custom/oxweb/images/menu_arrow.png
http://www.ox.ac.uk/sites/default/themes/custom/oxweb/images/search-icon.png
http://www.ox.ac.uk/sites/default/themes/custom/oxweb/images/carousel-chevron-right-large.png
http://www.ox.ac.uk/sites/default/themes/custom/oxweb/images/carousel-chevron-left-large.png
http://www.ox.ac.uk/sites/default/themes/custom/oxweb/images/play.png
http://www.ox.ac.uk/sites/default/themes/custom/oxweb/images/discover-shadow.png
http://www.ox.ac.uk/sites/default/themes/custom/oxweb/images/homepage-chevron-discover.png
http://www.ox.ac.uk/sites/default/themes/custom/oxweb/images/highlight-chevron-medium.png
http://www.ox.ac.uk/sites/default/themes/custom/oxweb/images/oxweb-footer-icons-v4.png
http://js.bizographics.com/insight.min.js
http://www.ox.ac.uk/sites/default/themes/custom/oxweb/images/i-sprite.png
http://www.google-analytics.com/analytics.js
http://rs.gwallet.com/r1/pixel/x21497r1779383
Does not register a service worker that controls page and `start_url`
A service worker is used to provide Progressive Web Apps the use of features such as working offline, the ability for the app to be added to the homescreen as well as push notifications.
Web app manifest does not meet the installability requirements
User engagement may be increased by leveraging the browsers ability to proactively prompt users to add the app to their homescreen.
View Data

PWA Optimized

Does not redirect HTTP traffic to HTTPS
It is advised to redirect all HTTP traffic to HTTPS, in order to enable secure web features for all users.
Is not configured for a custom splash screen
Themed splash screens ensure a high-quality user experience at launch for app users.
View Data
Does not set a theme color for the address bar.
A theme may be applied to the browser address bar, which ideally can be made to match the site.
View Data
Manifest doesn't have a maskable icon
Maskable icons are great to ensure that images fill the entire shape when installing the app on a device.

Manual Checks

Site works cross-browser
Ensure that the Progressive Web App works correctly across every major browser.
Page transitions don't feel like they block on the network
Users perceive apps with responsive, snappy transitions as higher peforming and ensures a great user experience, even on a slow network.
Each page has a URL
Ensure that all pages are deep linkable via URL. They should also be unique for the purpose of shareability on social media.
Avg. (All Categories) 71
Performance 40
Accessibility 96
Best Practices 77
SEO 98
Progressive Web App 43
0–49 (Fail) 50–89 (Average) 90–100 (Pass)
URL: http://www.ox.ac.uk/
Updated: 28th May, 2020

3.24 seconds
First Contentful Paint (FCP)
25%
46%
29%

0.02 seconds
First Input Delay (FID)
93%
6%
1%

Simulate loading on mobile
40

Performance

Indicates how well the page is performing and highlights opportunities where performance may be improved for ox.ac.uk. This includes details about optimizing page load times which can result in a better user experience.

Metrics

Cumulative Layout Shift — 0.01
Cumulative Layout Shift is the measurement of visible elements collective movement within the viewport.
View Data

Opportunities

Defer offscreen images
Time to Interactive can be slowed down by resources on the page. Ox.ac.uk should consider lazy-loading offscreen and hidden images.
Minify CSS
Cascading Style Sheets (CSS) files can contribute to network payload sizes. Ox.ac.uk should consider minifying CSS files.
Minify JavaScript — Potential savings of 33 KB
JavaScript (JS) files can contribute to network payload sizes and increase script parse times. Ox.ac.uk should consider minifying JS files.
URL Transfer Size (Bytes) Potential Savings (Bytes)
http://www.ox.ac.uk/sites/files/oxford/advagg_js/js__NApEfNetOv0iKOaiS8Z3hqHIRkgSK5NwyYcTjOiwNcs__DsOLEZi70ZYVkeyJ_wTYy723Ek4wbjK2L0iW8usayxk__fbry9Bhk4KPa1wzS3Jf4Jjr9yRPFaPHmDmEC2QLEZW4.js
55460
15915
http://www.ox.ac.uk/sites/files/oxford/advagg_js/js__eFj6HcVmig9Aay_7Um3eWoM2cDe1fjF-D-bHlJ9rXSk__dmMuBkVonu1MlrBmR5BSEnintIpEkYAsiESJfXVgg-A__fbry9Bhk4KPa1wzS3Jf4Jjr9yRPFaPHmDmEC2QLEZW4.js
48542
7864
http://www.ox.ac.uk/sites/files/oxford/advagg_js/js__T73ujsOjK-1cyTby7fEe8eK8r1o3_6UM-pyXbhgxLPM__uKP6bdssouSeSOO3xvX5BqOp2WaFmA0I2Uj15IUGujs__fbry9Bhk4KPa1wzS3Jf4Jjr9yRPFaPHmDmEC2QLEZW4.js
9450
5520
http://www.ox.ac.uk/sites/files/oxford/advagg_js/js__3RwaX_CyL00BOCuhktGmr0WtamfzBOPH7m6bCt5miZI__A9yCXajg0FXfF1Z5Xmia4bOijJ58UqeG8OCKKh1T3eI__fbry9Bhk4KPa1wzS3Jf4Jjr9yRPFaPHmDmEC2QLEZW4.js
9797
2344
http://www.ox.ac.uk/sites/files/oxford/advagg_js/js__sTOYibCHX3PjvTSi945x_NFLxlyRyMdT-ekCCJgHakQ__3bWUIJ3JZ0ZF7uiKcklHzm7eKrtTjqfQnPGw3AQb8QA__fbry9Bhk4KPa1wzS3Jf4Jjr9yRPFaPHmDmEC2QLEZW4.js
4048
2226
Enable text compression
Text-based resources should be served with compression, such as gzip, deflate or brotli.
Preconnect to required origins
Resource hints, such as 'preconnect' or 'dns-prefetch', may assist in establishing early connections to important third-party origins.
Initial server response time was short — Root document took 280 ms
It is advised to keep the server response time short for the main document, because all other requests depend on it.
Avoid multiple page redirects — Potential savings of 630 ms
Redirects can cause additional delays before the page can begin loading. Ox.ac.uk should avoid multiple or unnecessary page redirects.
URL Time Spent (Ms)
(Start) http://ox.ac.uk/
0
http://www.ox.ac.uk/
630
Preload key requests
Key requests can be preloaded by using '<link rel=preload>'. Ox.ac.uk should consider using '<link rel=preload>' to prioritize fetching resources that are currently requested later in page load.
Use video formats for animated content
Large GIFs are inefficient for delivering animated content. It is recommended to use MPEG4/WebM videos for animations and PNG/WebP for static images instead of GIF.

Diagnostics

Avoids enormous network payloads — Total size was 2,105 KB
Large network payloads can cost users money and are linked to long load times.
URL Transfer Size (Bytes)
http://www.ox.ac.uk/sites/files/oxford/styles/ow_large_feature/public/Ox-at-home-web-banners-02.png?itok=l2wr5kXJ
360894
http://www.ox.ac.uk/sites/files/oxford/styles/ow_large_feature/public/field/field_image_main/GAF-Library-Window-Victoria-Maguire-Rajpaul.jpg?itok=0BMjxL4P
209805
http://www.ox.ac.uk/sites/files/oxford/styles/ow_large_feature/public/bcar_conted_connections.jpg?itok=4ghf_ED8
155538
http://www.ox.ac.uk/sites/files/oxford/styles/ow_large_feature/public/bcar_ug_studetns-in-line.jpg?itok=vtnjFA_j
147177
https://connect.facebook.net/signals/config/867549083324614?v=2.9.18&r=stable
132903
http://www.ox.ac.uk/sites/files/oxford/styles/ow_large_feature/public/bcar_coronavirus_illustration_redblue.jpg?itok=xHyBWtXR
122052
http://www.ox.ac.uk/sites/files/oxford/st_ox_current4.jpg
86114
http://www.ox.ac.uk/sites/files/oxford/st_ox_conted2.jpg
85040
http://www.ox.ac.uk/sites/files/oxford/st_ox_grad3.jpg
74759
http://www.ox.ac.uk/sites/files/oxford/st_ox_undergrad2.jpg
74106
Avoid chaining critical requests — 17 chains found
Below is a list of Critical Request Chains, which shows which resources are loaded with a high priority. Ox.ac.uk should consider reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.
User Timing marks and measures
Make use of the User Timing API to measure an app's real-world performance during key user experiences.
Keep request counts low and transfer sizes small — 74 requests • 2,105 KB
It is advised to add a budgets.json file in order to set budgets for the quantity and size of page resources.
Resource Type Requests Transfer Size (Bytes)
Total
74
2155331
Image
41
1636385
Script
13
374292
Stylesheet
8
82638
Font
3
36281
Document
1
18553
Other
8
7182
Media
0
0
Third-party
26
292488
Largest Contentful Paint element — 1 element found
The element which was identified as the Largest Contentful Paint.
Element
Avoid large layout shifts — No elements found
Below is a list of all DOM elements that contribute to the CLS of the page.
Avoids `document.write()`
Avoid or limit the use of external scripts that are dynamically injected via 'document.write()' as users on slow connections will be delayed by tens of seconds.

Budgets

Performance budget
It is advised to keep the quantity and size of all network requests under the targets set by the provided performance budget.
Timing budget
It is advised to set a timing budget to monitor the performance of your site.

Other

Network Requests
Below is a list of network requests that were made during page load.
URL Start Time (Ms) End Time (Ms) Transfer Size (Bytes) Resource Size (Bytes) Status Code MIME Type Resource Type
http://ox.ac.uk/
0
186.88799999654
445
0
302
text/html
http://www.ox.ac.uk/
187.28600000031
465.62899998389
18553
94065
200
text/html
Document
http://www.ox.ac.uk/sites/files/oxford/advagg_css/css__BJ6Ou6QsBRtnFTmxaakamOIS8n4QswDP2XnnZ1sxtaM__NBuvkP6eInGIkb1aJvUHx5PX79XApuxBDkk_77W5tYk__fbry9Bhk4KPa1wzS3Jf4Jjr9yRPFaPHmDmEC2QLEZW4.css
488.46899997443
677.43199999677
2893
7603
200
text/css
Stylesheet
http://www.ox.ac.uk/sites/files/oxford/advagg_css/css__U1fc3nTroqQE5sCesRy4zXar7vidHU6jeUqVxRJ44kY__W-CP_u2xrHndNa1WiWx3v_PVbgVdtRChNsbhkytKLyo__fbry9Bhk4KPa1wzS3Jf4Jjr9yRPFaPHmDmEC2QLEZW4.css
488.67500000051
684.82499997481
3721
11322
200
text/css
Stylesheet
http://www.ox.ac.uk/sites/files/oxford/advagg_css/css__2DiFAmqocr834fiQgsml1ZTXpE2liQHLzvCh6LeRCF8__uUqS4ZFyMjJ1fdA0lVC_adQKckkv30XNPDMwlQWo5OY__fbry9Bhk4KPa1wzS3Jf4Jjr9yRPFaPHmDmEC2QLEZW4.css
488.88499999885
673.890999984
1634
3508
200
text/css
Stylesheet
https://fonts.googleapis.com/css?family=PT+Sans:400,700,400italic,700italic|PT+Sans+Narrow:400,700|PT+Serif:400,700,400italic&subset=latin,latin-ext
489.15999999736
504.40799997887
1929
13399
200
text/css
Stylesheet
http://www.ox.ac.uk/sites/files/oxford/advagg_css/css__0kUF_ilL830aGAGK9RANvTULJx1g8NNDYTgkF-dltRI__Np7ImczCWrNGG5ti4v6b5ya_nxTFD_Mm0qNjou0IDh8__fbry9Bhk4KPa1wzS3Jf4Jjr9yRPFaPHmDmEC2QLEZW4.css
489.37199998181
881.50699998369
46676
303192
200
text/css
Stylesheet
http://www.ox.ac.uk/sites/files/oxford/advagg_css/css__epHs2kAdMCuFAo6Rhjd1tjvm9avs1cgHqk4LC_6ijHY__O1I-osxkm86tiBj_yCjFKm6WexqqjupZo_L-l87pKG4__fbry9Bhk4KPa1wzS3Jf4Jjr9yRPFaPHmDmEC2QLEZW4.css
489.61999997846
678.8499999966
6331
43364
200
text/css
Stylesheet
http://www.ox.ac.uk/sites/files/oxford/advagg_css/css__g1nfo-wgRGwmaA0Ok_CrQ9DOFmFihksw_pmIkXEwemc__QFvIHg88lyC8i-u0slPHBVSnruqJCHY57I7ORFqwBhg__fbry9Bhk4KPa1wzS3Jf4Jjr9yRPFaPHmDmEC2QLEZW4.css
489.76299999049
772.09399998537
16636
95106
200
text/css
Stylesheet
http://www.ox.ac.uk/sites/files/oxford/advagg_js/js__eFj6HcVmig9Aay_7Um3eWoM2cDe1fjF-D-bHlJ9rXSk__dmMuBkVonu1MlrBmR5BSEnintIpEkYAsiESJfXVgg-A__fbry9Bhk4KPa1wzS3Jf4Jjr9yRPFaPHmDmEC2QLEZW4.js
489.93799998425
868.24199999683
48542
119799
200
application/x-javascript
Script
http://www.ox.ac.uk/sites/files/oxford/advagg_js/js__T73ujsOjK-1cyTby7fEe8eK8r1o3_6UM-pyXbhgxLPM__uKP6bdssouSeSOO3xvX5BqOp2WaFmA0I2Uj15IUGujs__fbry9Bhk4KPa1wzS3Jf4Jjr9yRPFaPHmDmEC2QLEZW4.js
490.22399997921
693.20299997344
9450
25349
200
application/x-javascript
Script
http://www.ox.ac.uk/sites/files/oxford/advagg_js/js__9o6MTP80DXWHri8ze4nKy9qC5QYGmn5CmTwGsjeqoRs__t7QMh2Q0VAdZOqg2nX8lHHSSz0oEF4l8S4NpWKqSdpE__fbry9Bhk4KPa1wzS3Jf4Jjr9yRPFaPHmDmEC2QLEZW4.js
490.42899999768
585.54400000139
1026
1505
200
application/x-javascript
Script
http://www.ox.ac.uk/sites/files/oxford/advagg_js/js__3RwaX_CyL00BOCuhktGmr0WtamfzBOPH7m6bCt5miZI__A9yCXajg0FXfF1Z5Xmia4bOijJ58UqeG8OCKKh1T3eI__fbry9Bhk4KPa1wzS3Jf4Jjr9yRPFaPHmDmEC2QLEZW4.js
490.5719999806
695.87799999863
9797
25545
200
application/x-javascript
Script
http://www.ox.ac.uk/sites/files/oxford/advagg_js/js__5AkQ32eKyH4bHoZwRq2mAxZB8_fSkxwahmo58o-EFPg__64vo-p6wGFVXXMmx55KeVAQhVLIOf8WJOl3q1cYitjw__fbry9Bhk4KPa1wzS3Jf4Jjr9yRPFaPHmDmEC2QLEZW4.js
490.68199997419
684.25099999877
3952
11371
200
application/x-javascript
Script
http://www.ox.ac.uk/sites/files/oxford/advagg_js/js__sTOYibCHX3PjvTSi945x_NFLxlyRyMdT-ekCCJgHakQ__3bWUIJ3JZ0ZF7uiKcklHzm7eKrtTjqfQnPGw3AQb8QA__fbry9Bhk4KPa1wzS3Jf4Jjr9yRPFaPHmDmEC2QLEZW4.js
491.10899999505
680.10099997628
4048
10671
200
application/x-javascript
Script
http://www.ox.ac.uk/sites/files/oxford/advagg_js/js__NApEfNetOv0iKOaiS8Z3hqHIRkgSK5NwyYcTjOiwNcs__DsOLEZi70ZYVkeyJ_wTYy723Ek4wbjK2L0iW8usayxk__fbry9Bhk4KPa1wzS3Jf4Jjr9yRPFaPHmDmEC2QLEZW4.js
491.25999998068
874.78099999134
55460
173151
200
application/x-javascript
Script
http://www.ox.ac.uk/sites/files/oxford/styles/ow_large_feature/public/bcar_coronavirus_illustration_redblue.jpg?itok=xHyBWtXR
882.76899998891
1072.318999999
122052
121695
200
image/jpeg
Image
http://www.ox.ac.uk/sites/files/oxford/styles/ow_large_feature/public/Ox-at-home-web-banners-02.png?itok=l2wr5kXJ
883.55199998477
1442.6389999862
360894
360537
200
image/png
Image
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http://www.ox.ac.uk/sites/files/oxford/st_ox_grad3.jpg
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http://www.ox.ac.uk/sites/files/oxford/st_ox_conted2.jpg
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http://www.ox.ac.uk/sites/files/oxford/st_ox_current4.jpg
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https://www.google-analytics.com/analytics.js
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Script
http://connect.facebook.net/en_US/fbevents.js
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Script
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1407.8499999887
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963.19499998935
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http://www.ox.ac.uk/sites/default/themes/custom/oxweb/images/play.png
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http://www.ox.ac.uk/sites/default/themes/custom/oxweb/images/discover-shadow.png
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Font
http://js.bizographics.com/insight.min.js
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Script
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1119.0749999951
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https://www.googletagmanager.com/gtm.js?id=GTM-TDB29T
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Script
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1517.1730000002
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1518.3129999787
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1553.9549999812
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Script
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Network Round Trip Times — 0 ms
High Network RTT (Round Trip Times) can have a large impact on performance. Providing servers geographically closer to the user could improve performance.
Server Backend Latencies — 0 ms
High server latencies indicate the server is overloaded or has a poor backend performance.
Tasks
Below is a list of the top-level main thread tasks that executed during page load.
Start Time (Ms) End Time (Ms)
497.677
13.291
516.867
6.885
912.276
12.303
924.668
53.753
978.448
100.369
1080.405
334.262
1414.696
21.422
1458.139
10.246
1479.459
67.064
1547.079
10.238
1563.469
18.284
1595.058
8.707
1607.306
40.337
1657.083
21.095
1678.442
8.648
1689.035
5.673
1695.183
47.329
1743.222
22.156
1912.737
18.276
2129.948
6.893
Diagnostics
Below is a collection of useful page vitals.
View Data
Metrics
Below is a collection of metrics.
View Data

Metrics

Speed Index — 5.7 s
The time taken for the page contents to be visibly populated.
Time to Interactive — 6.8 s
The time taken for the page to become fully interactive.
Total Blocking Time — 600 ms
The total blocking time is the sum of all time periods between First Contentful Paint and Time to Interactive (when task length exceeded 50ms).

Other

First CPU Idle — 5.9 s
The time taken for the page's main thread to be quiet enough to handle input.

Opportunities

Remove unused CSS — Potential savings of 52 KB
Dead and/or unused rules in Style Sheets (CSS) can contribute to network payload sizes. Ox.ac.uk should consider removing dead rules from style sheets and deferring the loading of CSS not used for above-the-fold content.
URL Transfer Size (Bytes) Potential Savings (Bytes)
http://www.ox.ac.uk/sites/files/oxford/advagg_css/css__0kUF_ilL830aGAGK9RANvTULJx1g8NNDYTgkF-dltRI__Np7ImczCWrNGG5ti4v6b5ya_nxTFD_Mm0qNjou0IDh8__fbry9Bhk4KPa1wzS3Jf4Jjr9yRPFaPHmDmEC2QLEZW4.css
46676
40995
http://www.ox.ac.uk/sites/files/oxford/advagg_css/css__g1nfo-wgRGwmaA0Ok_CrQ9DOFmFihksw_pmIkXEwemc__QFvIHg88lyC8i-u0slPHBVSnruqJCHY57I7ORFqwBhg__fbry9Bhk4KPa1wzS3Jf4Jjr9yRPFaPHmDmEC2QLEZW4.css
16636
12364
Remove unused JavaScript — Potential savings of 225 KB
It is advised to remove unused JavaScript in order to reduce bytes consumed by network activity.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://connect.facebook.net/signals/config/867549083324614?v=2.9.18&r=stable
132903
114263
http://www.ox.ac.uk/sites/files/oxford/advagg_js/js__NApEfNetOv0iKOaiS8Z3hqHIRkgSK5NwyYcTjOiwNcs__DsOLEZi70ZYVkeyJ_wTYy723Ek4wbjK2L0iW8usayxk__fbry9Bhk4KPa1wzS3Jf4Jjr9yRPFaPHmDmEC2QLEZW4.js
55460
28326
http://www.ox.ac.uk/sites/files/oxford/advagg_js/js__eFj6HcVmig9Aay_7Um3eWoM2cDe1fjF-D-bHlJ9rXSk__dmMuBkVonu1MlrBmR5BSEnintIpEkYAsiESJfXVgg-A__fbry9Bhk4KPa1wzS3Jf4Jjr9yRPFaPHmDmEC2QLEZW4.js
48542
17248
http://connect.facebook.net/en_US/fbevents.js
32369
16724
http://www.google-analytics.com/analytics.js
18846
15216
https://www.googletagmanager.com/gtm.js?id=GTM-TDB29T
36907
12181
http://www.ox.ac.uk/sites/files/oxford/advagg_js/js__T73ujsOjK-1cyTby7fEe8eK8r1o3_6UM-pyXbhgxLPM__uKP6bdssouSeSOO3xvX5BqOp2WaFmA0I2Uj15IUGujs__fbry9Bhk4KPa1wzS3Jf4Jjr9yRPFaPHmDmEC2QLEZW4.js
9450
7536
http://www.ox.ac.uk/sites/files/oxford/advagg_js/js__3RwaX_CyL00BOCuhktGmr0WtamfzBOPH7m6bCt5miZI__A9yCXajg0FXfF1Z5Xmia4bOijJ58UqeG8OCKKh1T3eI__fbry9Bhk4KPa1wzS3Jf4Jjr9yRPFaPHmDmEC2QLEZW4.js
9797
6530
https://www.google-analytics.com/analytics.js
19102
5975
http://www.ox.ac.uk/sites/files/oxford/advagg_js/js__sTOYibCHX3PjvTSi945x_NFLxlyRyMdT-ekCCJgHakQ__3bWUIJ3JZ0ZF7uiKcklHzm7eKrtTjqfQnPGw3AQb8QA__fbry9Bhk4KPa1wzS3Jf4Jjr9yRPFaPHmDmEC2QLEZW4.js
4048
3315
http://www.ox.ac.uk/sites/files/oxford/advagg_js/js__5AkQ32eKyH4bHoZwRq2mAxZB8_fSkxwahmo58o-EFPg__64vo-p6wGFVXXMmx55KeVAQhVLIOf8WJOl3q1cYitjw__fbry9Bhk4KPa1wzS3Jf4Jjr9yRPFaPHmDmEC2QLEZW4.js
3952
2887
Efficiently encode images — Potential savings of 112 KB
Unoptimized images can consume more cellular data than what is necessary.
URL Resource Size (Bytes) Potential Savings (Bytes)
http://www.ox.ac.uk/sites/files/oxford/st_ox_conted2.jpg
84681
31948
http://www.ox.ac.uk/sites/files/oxford/st_ox_grad3.jpg
74400
29694
http://www.ox.ac.uk/sites/files/oxford/st_ox_current4.jpg
85755
29089
http://www.ox.ac.uk/sites/files/oxford/st_ox_undergrad2.jpg
73750
24442

Diagnostics

Avoid an excessive DOM size — 1,144 elements
A large DOM (Document Object Model) will increase memory usage, cause longer system calculations as well as costly layout reflows.
Statistic Element Value
Total DOM Elements
1,144
Maximum DOM Depth
22
Maximum Child Elements
14
Reduce JavaScript execution time — 1.7 s
JavaScript (JS) execution time can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.
URL Total CPU Time (Ms) Script Evaluation (Ms) Script Parse (Ms)
http://www.ox.ac.uk/sites/files/oxford/advagg_js/js__eFj6HcVmig9Aay_7Um3eWoM2cDe1fjF-D-bHlJ9rXSk__dmMuBkVonu1MlrBmR5BSEnintIpEkYAsiESJfXVgg-A__fbry9Bhk4KPa1wzS3Jf4Jjr9yRPFaPHmDmEC2QLEZW4.js
1744.568
993.688
12.648
http://www.ox.ac.uk/
973.808
40.772
10.34
Unattributable
352.516
5.464
1.06
https://www.google-analytics.com/analytics.js
270.488
148.4
7.248
https://www.googletagmanager.com/gtm.js?id=GTM-TDB29T
234.892
209.52
14.532
https://connect.facebook.net/signals/config/867549083324614?v=2.9.18&r=stable
199.984
140.296
42.82
http://connect.facebook.net/en_US/fbevents.js
73.136
57.444
11.652

Metrics

First Contentful Paint — 4.3 s
The time taken for the first image or text on the page to be rendered.
Largest Contentful Paint — 12.5 s
The timing of the largest text or image that is painted.

Other

Max Potential First Input Delay — 670 ms
Users could experience a delay when interacting with the page.
First Meaningful Paint — 4.8 s
The time taken for the primary content of the page to be rendered.
Estimated Input Latency — 170 ms
The time taken for the page to respond to user input (during the busiest 5 second window of page load). Users are likely to perceive ox.ac.uk as laggy when the latency is higher than 0.05 seconds.
First Contentful Paint (3G) — 8765 ms
The time taken for the first image or text on the page to be rendered while on a 3G network.

Opportunities

Eliminate render-blocking resources — Potential savings of 2,320 ms
Resources, such as JavaScript and style sheets, can block the first paint of the page. Ox.ac.uk should consider delivering critical JavaScript/style sheets (JS/CSS) inline and deferring all non-critical JS/CSS.
URL Transfer Size (Bytes) Potential Savings (Ms)
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1080
Properly size images — Potential savings of 466 KB
Images can slow down the page's load time. Ox.ac.uk should consider serving more appropriate-sized images.
URL Resource Size (Bytes) Potential Savings (Bytes)
http://www.ox.ac.uk/sites/files/oxford/styles/ow_large_feature/public/Ox-at-home-web-banners-02.png?itok=l2wr5kXJ
360537
147822
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155181
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Serve images in next-gen formats — Potential savings of 549 KB
Image formats like PNG and JPEG have poor compression when compared to other next-gen formats, such as JPEG 200, JPEG XR and WebP.
URL Resource Size (Bytes) Potential Savings (Bytes)
http://www.ox.ac.uk/sites/files/oxford/styles/ow_large_feature/public/Ox-at-home-web-banners-02.png?itok=l2wr5kXJ
360537
317293
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84681
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74400
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73750
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155181
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Diagnostics

Serve static assets with an efficient cache policy — 52 resources found
Ox.ac.uk can speed up repeat visits by increasing the cache lifetime, which is essentially how long before a cached copy expires.
URL Cache TTL (Ms) Transfer Size (Bytes)
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Minimize main-thread work — 4.0 s
Main-thread work timing can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.
Category Time Spent (Ms)
Script Evaluation
1637.724
Style & Layout
1327.416
Other
491.028
Rendering
259.704
Parse HTML & CSS
176.54
Script Parsing & Compilation
141.668
Ensure text remains visible during webfont load
Make use of the font-display CSS feature, which will ensure text is user-visible while webfonts are loading.
URL Potential Savings (Ms)
https://fonts.gstatic.com/s/ptsans/v11/jizaRExUiTo99u79D0KExcOPIDU.woff2
2.9459999932442
https://fonts.gstatic.com/s/ptsans/v11/jizfRExUiTo99u79B_mh0O6tLR8a8zI.woff2
2.8500000189524
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3.2780000183266
Reduce the impact of third-party code — Third-party code blocked the main thread for 280 ms
It is advised to either limit, remove or delay the loading of redundant third-party code which may be significantly impacting load performance.
Third-Party Transfer Size (Bytes) Main-Thread Blocking Time (Ms)
40035
106.34
37191
93.136
166304
84.916
38210
0
2527
0
2109
0
1890
0
Does not use passive listeners to improve scrolling performance
Improve the page's scroll performance by marking touch and wheel event listeners as 'passive'.
URL Location
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line: 4
96

Accessibility

Indicates how accessible the page is and highlights opportunities where the page can be made more accessible to users of ox.ac.uk. This includes details about various page attributes that can be optimized.

Navigation

`[accesskey]` values are unique
Access keys assist users with focusing on different parts of the page. Each access key should be unique for proper navigation.
The page contains a heading, skip link, or landmark region
It is advised to provide ways to bypass repetitive content, allowing users to navigate the page efficiently.
`[id]` attributes on active, focusable elements are unique
Ensure all focusable elements have a unique id value to allow them to be visible to users of assistive technologies, like a screen reader.
Heading elements appear in a sequentially-descending order
Properly order all headers and do not skip heading levels to better the navigation and readability for users of assistive technologies, like a screen reader.
No element has a `[tabindex]` value greater than 0
Although technically valid, a tabindex value greater than 0 often creates frustrating experiences for users who rely on assistive technologies.

ARIA

`[aria-*]` attributes match their roles
Avoid mismatching 'aria-*' attributes and their 'role' value, as it invalidates the attribute.
`[aria-hidden="true"]` is not present on the document `<body>`
If aria-hidden=true is set on the document body, assistive technologies, like a screen reader will work inconsistently.
`[aria-hidden="true"]` elements do not contain focusable descendents
Interactive elements within an aria-hidden=true element are unavailable to users of assistive technologies, like a screen reader.
ARIA input fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when an input field does not have an accessible name specified.
`[role]`s have all required `[aria-*]` attributes
Some ARIA roles have required 'aria-*' attributes, which provide essential information about state and functionality.
Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
Some ARIA parent roles cannot perform their intended functions if specific child roles are not used.
`[role]`s are contained by their required parent element
Some ARIA child roles cannot perform their intended functions if specific parent roles are not used.
`[role]` values are valid
All ARIA roles require valid values to perform their intended functions.
ARIA toggle fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when a toggle field does not have an accessible name specified.
`[aria-*]` attributes have valid values
ARIA attributes cannot be interpreted with invalid values when used by screen readers and other assistive technologies.
`[aria-*]` attributes are valid and not misspelled
ARIA attributes cannot be interpreted with invalid names when used by screen readers and other assistive technologies.
ARIA IDs are unique
Ensure all ARIA ID values are unique to prevent elements from being overlooked by assistive technologies, like a screen reader.

Names and labels

Buttons have an accessible name
Buttons become unusable as they are announced simply as "button" when the button does not have an accessible name, when used by screen readers and other assistive technologies.
Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.
No form fields have multiple labels
Having multiple labels for form fields can be confusing to assistive technologies, like a screen reader.
`<frame>` or `<iframe>` elements have a title
Screen reader users and other assistive technology users rely on frame titles to describe the contents of frames.
Image elements have `[alt]` attributes
Provide short and descriptive alternative text where possible on informative elements.
`<input type="image">` elements have `[alt]` text
Input buttons with alternative text assist screen readers and other assistive technology users to understand its purpose.
Form elements have associated labels
Screen readers and other assistive technologies rely on labels to properly announce form controls.
Links have a discernible name
In order to improve the navigation for screen reader and other assistive technology users, use link text that is unique, focusable and discernible.
`<object>` elements have `[alt]` text
It is advised that alt text is used on '<object>' elements in order to provide meaning to screen reader and other assistive technology users, as these technologies are unable to translate non-text content.

Tables and lists

`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
Screen readers and other assistive technologies may produce poor and inaccurate output when definition lists are not properly marked up.
Definition list items are wrapped in `<dl>` elements
In order for screen readers and other assistive technologies to properly announce definition list items ('<dt>' and '<dd>'), they must be wrapped in parent a '<dl>' element.
Presentational `<table>` elements avoid using `<th>`, `<caption>` or the `[summary]` attribute.
It is advised to not include data elements in tables which are used for layout purposes, as it may create confusion for screen reader and other assistive technology users.
Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
Use proper list structure to aid screen readers and other assistive technologies.
List items (`<li>`) are contained within `<ul>` or `<ol>` parent elements
In order for screen readers to announce list items, ensure that list items ('<li>') are contained within parent '<ul>' or '<ol>' tags.
Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that '<td>' cells using the headers attribute only refer to other cells in the same table, to improve screen reader user experience.
`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that table headers refer to some set of cells, to improve screen reader user experience.

Internationalization and localization

`<html>` element has a `[lang]` attribute
It is advised to provide a lang attribute so that screen readers and other assistive technologies are guaranteed to announce the page's text correctly. When not provided, the user's default language setting will be used which may cause inaccuracies.
`<html>` element has a valid value for its `[lang]` attribute
Specify a valid BCP 47 language in order to help screen readers and other assistive technologies announce text properly.
`[lang]` attributes have a valid value
Specify a valid BCP 47 language on elements in order to help screen readers and other assistive technologies announce text properly.

Best practices

The document does not use `<meta http-equiv="refresh">`
Pages that refresh automatically cause a poor user experience as focus is directed back to the top of the page unexpectedly.
`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
For users with low vision who rely on screen magnification, ensure that zooming is not disabled.

Audio and video

`<video>` elements contain a `<track>` element with `[kind="captions"]`
Ox.ac.uk may provide assistance to deaf or hearing-impaired users with captions on videos.
`<video>` elements contain a `<track>` element with `[kind="description"]`
Ox.ac.uk may provide relevant information that dialogue cannot, by using audio descriptions.

Contrast

Background and foreground colors do not have a sufficient contrast ratio.
Many (if not most) users find low-contrast text difficult or impossible to read.
Failing Elements

Manual Checks

The page has a logical tab order
The visual layout should be logical in its tab order and users cannot focus elements that are offscreen.
Interactive controls are keyboard focusable
Ensure that custom interactive controls are keyboard focusable and that a focus indicator is displayed.
Interactive elements indicate their purpose and state
Ensure that interactive elements (such as links and buttons) are distinguishable from non-interactive elements and that they indicate their state.
The user's focus is directed to new content added to the page
When new content (such as a dialogue) is added to the page, the user's focus should be directed to it.
User focus is not accidentally trapped in a region
Avoid focus being accidentally trapped when a user tabs in and out of controls or regions on page.
Custom controls have associated labels
Ensure that custom interactive controls have associated labels, which are provided by aria-label and aria-labelledby attributes.
Custom controls have ARIA roles
Ensure that all custom interactive controls have appropriate ARIA roles.
Visual order on the page follows DOM order
Ensure that the DOM order matches with the page's visual order, in order to improve navigation for screen readers and other assistive technologies.
Offscreen content is hidden from assistive technology
Ensure that offscreen content is hidden through the use of "display:none" styling or the aria-hidden attribute.
HTML5 landmark elements are used to improve navigation
Elements such as <main> and <nav> are recommended as they are used by screen readers and other assistive technologies to improve keyboard navigation.
77

Best Practices

Indicates the recommended, best practices currently in place on the page and highlights the best practices that ox.ac.uk should incorporate. This includes practices such as protecting pages with HTTPS.

Audits

Links to cross-origin destinations are safe
Improve performance and prevent security vulnerabilities by adding rel="noopener" and rel="noreferrer" to external links.
Avoids requesting the geolocation permission on page load
When requesting a user's location, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.
Avoids requesting the notification permission on page load
When requesting permission to send notifications, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.

Audits

Allows users to paste into password fields
Ensure that password inputs may be pasted into to aid in the user's ability to use password managers and improve security.
Displays images with correct aspect ratio
Ensure that image display dimensions match their natural aspect ratio.

Audits

Page has the HTML doctype
Ensure a doctype is specified to prevent the browser from switching to quirks-mode.
Properly defines charset
It is advised to declare a character encoding, optionally via a <meta> tag in the first 1024 bytes of the HTML or in the Content-Type HTTP response header.

Audits

Avoids Application Cache
Application cache is deprecated and is no longer recommended.
Detected JavaScript libraries
Below is a list of all front-end JavaScript libraries that were detected on the page.
Name Version
jQuery
1.10.2
core-js
3.0.0: pure
Avoids deprecated APIs
Avoid deprecated APIs which will eventually be removed the browser.
No browser errors logged to the console
Below is a list of all errors logged to the console, which indicate unresolved problems on the site.

Audits

Does not use HTTPS — 53 insecure requests found
Ensure that all pages are protected with HTTPS (including those that do not handle sensitive data) as HTTPS prevents tampering and passive listening on communications between the app and its users. Additionally, HTTPS is a prerequisite for HTTP/2 and many new web platform APIs.
Insecure URL
http://ox.ac.uk/
http://www.ox.ac.uk/
http://www.ox.ac.uk/sites/files/oxford/advagg_css/css__BJ6Ou6QsBRtnFTmxaakamOIS8n4QswDP2XnnZ1sxtaM__NBuvkP6eInGIkb1aJvUHx5PX79XApuxBDkk_77W5tYk__fbry9Bhk4KPa1wzS3Jf4Jjr9yRPFaPHmDmEC2QLEZW4.css
http://www.ox.ac.uk/sites/files/oxford/advagg_css/css__U1fc3nTroqQE5sCesRy4zXar7vidHU6jeUqVxRJ44kY__W-CP_u2xrHndNa1WiWx3v_PVbgVdtRChNsbhkytKLyo__fbry9Bhk4KPa1wzS3Jf4Jjr9yRPFaPHmDmEC2QLEZW4.css
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http://www.ox.ac.uk/sites/files/oxford/advagg_js/js__sTOYibCHX3PjvTSi945x_NFLxlyRyMdT-ekCCJgHakQ__3bWUIJ3JZ0ZF7uiKcklHzm7eKrtTjqfQnPGw3AQb8QA__fbry9Bhk4KPa1wzS3Jf4Jjr9yRPFaPHmDmEC2QLEZW4.js
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http://www.ox.ac.uk/sites/files/oxford/styles/ow_large_feature/public/bcar_coronavirus_illustration_redblue.jpg?itok=xHyBWtXR
http://www.ox.ac.uk/sites/files/oxford/styles/ow_large_feature/public/Ox-at-home-web-banners-02.png?itok=l2wr5kXJ
http://www.ox.ac.uk/sites/files/oxford/styles/ow_large_feature/public/field/field_image_main/GAF-Library-Window-Victoria-Maguire-Rajpaul.jpg?itok=0BMjxL4P
http://www.ox.ac.uk/sites/files/oxford/styles/ow_large_feature/public/bcar_ug_studetns-in-line.jpg?itok=vtnjFA_j
http://www.ox.ac.uk/sites/files/oxford/styles/ow_large_feature/public/bcar_conted_connections.jpg?itok=4ghf_ED8
http://www.ox.ac.uk/sites/files/oxford/advagg_css/css__8cRlFoQ-PvnSvxE3iCOXUn3jj8zzed--9_-tAiBveYE__sb8Ujj6tWWssQfu7D3msxBLfh4PrTezTVySEM7hOySI__fbry9Bhk4KPa1wzS3Jf4Jjr9yRPFaPHmDmEC2QLEZW4.css
http://www.ox.ac.uk/sites/files/oxford/styles/ow_listing/public/field/field_image_main/shutterstock_contact%20tracing_resize.jpg?itok=aVUqYKMT
http://www.ox.ac.uk/sites/files/oxford/styles/ow_listing/public/field/field_image_listing/Jennerlab2_0.jpg?itok=bek1o2R_
http://www.ox.ac.uk/sites/files/oxford/styles/ow_listing/public/field/field_image_listing/1621_Anatomy%20of%20Melancholy_Christ%20Church_crop.jpg?itok=9nO-MCR9
http://www.ox.ac.uk/sites/files/oxford/styles/ow_small_highlight/public/disc_radcam_twilight.jpg?itok=Y2dTVUgL
http://www.ox.ac.uk/sites/files/oxford/styles/ow_small_highlight/public/disc_conv_elephants.jpg?itok=1lN8VX6p
http://www.ox.ac.uk/sites/files/oxford/styles/ow_small_highlight/public/disc_dodo_egg.jpg?itok=qOIaSUDv
http://www.ox.ac.uk/sites/files/oxford/styles/ow_small_highlight/public/disc_pod_radc_0.jpg?itok=VI20ky76
http://www.ox.ac.uk/sites/files/oxford/styles/ow_small_highlight/public/disc_oup_syringe.jpg?itok=wJo909jz
http://www.ox.ac.uk/sites/files/oxford/styles/ow_small_highlight/public/disc_oii_toolkit.jpg?itok=Eo4-QVPY
http://www.ox.ac.uk/sites/files/oxford/styles/ow_small_highlight/public/disc_pod_biology_garden.jpg?itok=O69urG1M
http://www.ox.ac.uk/sites/files/oxford/styles/ow_small_highlight/public/disc_oxplore_laws.jpg?itok=zvVBBQc2
http://www.ox.ac.uk/sites/files/oxford/styles/ow_small_highlight/public/media-youtube/KJoR2hkqdsQ.jpg?itok=cAlvsUbo
http://www.ox.ac.uk/sites/files/oxford/st_ox_undergrad2.jpg
http://www.ox.ac.uk/sites/files/oxford/st_ox_grad3.jpg
http://www.ox.ac.uk/sites/files/oxford/st_ox_conted2.jpg
http://www.ox.ac.uk/sites/files/oxford/st_ox_current4.jpg
http://connect.facebook.net/en_US/fbevents.js
http://www.googletagmanager.com/gtm.js?id=GTM-TDB29T
http://www.ox.ac.uk/sites/default/themes/custom/oxweb/images/oxweb-logo-square.svg
http://www.ox.ac.uk/sites/default/themes/custom/oxweb/images/oxweb-logo-rect.svg
http://www.ox.ac.uk/sites/default/themes/custom/oxweb/images/search-icon.png
http://www.ox.ac.uk/sites/default/themes/custom/oxweb/images/carousel-chevron-right-large.png
http://www.ox.ac.uk/sites/default/themes/custom/oxweb/images/carousel-chevron-left-large.png
http://www.ox.ac.uk/sites/default/themes/custom/oxweb/images/play.png
http://www.ox.ac.uk/sites/default/themes/custom/oxweb/images/discover-shadow.png
http://www.ox.ac.uk/sites/default/themes/custom/oxweb/images/highlight-chevron-medium.png
http://www.ox.ac.uk/sites/default/themes/custom/oxweb/images/social@x2_v4.png
http://js.bizographics.com/insight.min.js
http://www.ox.ac.uk/sites/default/themes/custom/oxweb/images/info-icon@x2.png
http://www.ox.ac.uk/sites/default/themes/custom/oxweb/images/whopper.png
http://www.google-analytics.com/analytics.js
http://rs.gwallet.com/r1/pixel/x21497r63927
Includes front-end JavaScript libraries with known security vulnerabilities — 4 vulnerabilities detected
Ensure that the use of third-party scripts is minimal and that only trusted third-party scripts are used as some may contain known security vulnerabilities which may be exploited by attackers.
Library Version Vulnerability Count Highest Severity
4
Medium

Audits

Displays images with inappropriate size
For maximum image clarity, ensure images have natural dimensions and are proportional to the display size and pixel ratio.
URL Displayed size Actual size Expected size
http://www.ox.ac.uk/sites/files/oxford/styles/ow_listing/public/field/field_image_main/shutterstock_contact%20tracing_resize.jpg?itok=aVUqYKMT
360 x 216
370 x 222
945 x 567
98

SEO

Indicates how well the page is optimized for ranking in search engines and highlights Search Engine Optimization (SEO) opportunities for ox.ac.uk. This includes optimizations such as providing meta data.

Mobile Friendly

Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of ox.ac.uk on mobile screens.
Document uses legible font sizes — 100% legible text
Font sizes of 12px or less are too small to most mobile users without user gestures and further action. Aim for more than 60% of page text to use font sizes greater than 12px.
Source Selector % of Page Text Font Size
100.00%
≥ 12px

Content Best Practices

Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.
Document has a meta description
Meta descriptions may be used by search engines when displaying a link to the page and should concisely summarize the page's content.
Links have descriptive text
Make use of descriptive link text to assist search engines in understanding the content.
Image elements have `[alt]` attributes
Provide short and descriptive alternative text where possible on informative elements.
Document has a valid `hreflang`
Search engines can be instructed to list specific versions of a page for a given language or region through the use of hreflang links.
Document has a valid `rel=canonical`
Search engines can be suggested which URL should be shown in search results through the use of canonical links.
Document avoids plugins
The content of plugins cannot be indexed by search engines and many devices either restrict or do not support them.

Crawling and Indexing

Page has successful HTTP status code
Avoid pages with unsuccessful HTTP status codes as they may not be indexed by search engines.
Page isn’t blocked from indexing
Pages that cannot be crawled by search engines cannot be indexed or included in their search results. Ensure that search engines have permission to crawl all pages that should be indexed.
robots.txt is valid
Malformed robots.txt files prevent crawlers from understanding how a site wants to be crawled or indexed, which can be devastating to SEO.

Manual Checks

Structured data is valid
Structured data can be validated through the use of the Structured Data Testing Tool and the Structured Data Linter.
43

Progressive Web App

Indicates how valid the aspects of a Progressive Web App (PWA) are for the page and highlights opportunities to enable/improve the PWA of ox.ac.uk. This includes details about web app manifests.

Fast and reliable

Page load is fast enough on mobile networks
Ensure that the page loads fast enough over a cellular network, to ensure good mobile user experience.

PWA Optimized

Content is sized correctly for the viewport
Ensure that the width of the app's content matches the width of the viewport, otherwise the app might not be optimized for mobile screens.
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of ox.ac.uk on mobile screens.
Contains some content when JavaScript is not available
Apps should display alternative content for when JavaScript is disabled.
Provides a valid `apple-touch-icon`
iOS users of Progressive Web Apps will benefit from an apple touch icon, which can be defined with 'apple-touch-icon', which must point to a non-transparent 192px (or 180px) square PNG.

Fast and reliable

Current page does not respond with a 200 when offline
In order for Progressive Web Apps to be made available offline, ensure that the app is using a service worker.
`start_url` does not respond with a 200 when offline
Consider using a service worker for Progressive Web Apps to ensure greater reliability for the user, in the case of poor network conditions.

Installable

Does not use HTTPS — 53 insecure requests found
Ensure that all pages are protected with HTTPS (including those that do not handle sensitive data) as HTTPS prevents tampering and passive listening on communications between the app and its users. Additionally, HTTPS is a prerequisite for HTTP/2 and many new web platform APIs.
Insecure URL
http://ox.ac.uk/
http://www.ox.ac.uk/
http://www.ox.ac.uk/sites/files/oxford/advagg_css/css__BJ6Ou6QsBRtnFTmxaakamOIS8n4QswDP2XnnZ1sxtaM__NBuvkP6eInGIkb1aJvUHx5PX79XApuxBDkk_77W5tYk__fbry9Bhk4KPa1wzS3Jf4Jjr9yRPFaPHmDmEC2QLEZW4.css
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http://www.google-analytics.com/analytics.js
http://rs.gwallet.com/r1/pixel/x21497r63927
Does not register a service worker that controls page and `start_url`
A service worker is used to provide Progressive Web Apps the use of features such as working offline, the ability for the app to be added to the homescreen as well as push notifications.
Web app manifest does not meet the installability requirements
User engagement may be increased by leveraging the browsers ability to proactively prompt users to add the app to their homescreen.
View Data

PWA Optimized

Does not redirect HTTP traffic to HTTPS
It is advised to redirect all HTTP traffic to HTTPS, in order to enable secure web features for all users.
Is not configured for a custom splash screen
Themed splash screens ensure a high-quality user experience at launch for app users.
View Data
Does not set a theme color for the address bar.
A theme may be applied to the browser address bar, which ideally can be made to match the site.
View Data
Manifest doesn't have a maskable icon
Maskable icons are great to ensure that images fill the entire shape when installing the app on a device.

Manual Checks

Site works cross-browser
Ensure that the Progressive Web App works correctly across every major browser.
Page transitions don't feel like they block on the network
Users perceive apps with responsive, snappy transitions as higher peforming and ensures a great user experience, even on a slow network.
Each page has a URL
Ensure that all pages are deep linkable via URL. They should also be unique for the purpose of shareability on social media.
Hosting

Server Location

Server IP Address: 129.67.242.154
Continent: Europe
Country: United Kingdom
United Kingdom Flag
Region:
City:
Longitude: -0.1224
Latitude: 51.4964
Currencies: GBP
Languages: English

Web Hosting Provider

Registration

Domain Registrant

Private Registration: No
Name:
Organization: The JNT Association
Country:
City:
State:
Post Code:
Email:
Phone:
Note: Registration information is derived from various sources and may be inaccurate.

Domain Registrar

Security

Visitor Safety

Mature Content: Not Likely
McAfee WebAdvisor Rating: Safe
WOT Rating: 4.7/5 (19 reviews)
WOT Trustworthiness: 94/100
WOT Child Safety: 94/100
Note: Safety information is not guaranteed.

SSL/TLS Certificate

Issued To: aurochs.nsms.ox.ac.uk
Issued By: AffirmTrust Certificate Authority - OV1
Valid From: 29th October, 2019
Valid To: 29th October, 2021
Subject: CN = aurochs.nsms.ox.ac.uk
O = University of Oxford
L = Oxford
S = GB
Hash: e2cfb29a
Issuer: CN = AffirmTrust Certificate Authority - OV1
OU = See www.affirmtrust.com/repository
O = AffirmTrust
S = CA
Version: 2
Serial Number: 42514361318592141882213991184670992161
Serial Number (Hex): 1FFBF7D8DFF5CB150000000058092721
Valid From: 29th October, 2024
Valid To: 29th October, 2024
Signature Algorithm (Short Name): RSA-SHA256
Signature Algorithm (Long Name): sha256WithRSAEncryption
Authority Key Identifier: keyid:FE:60:C3:0D:A4:A2:9D:21:4F:7A:78:4C:62:C5:DB:14:FC:39:78:C4
Extended Key Usage: TLS Web Server Authentication, TLS Web Client Authentication
CRL Distribution Points:
Full Name:
URI:http://crl.affirmtrust.com/crl/aftov1ca.crl

Certificate Policies: Policy: 1.3.6.1.4.1.34697.2.5
CPS: https://www.affirmtrust.com/repository
Policy: 2.23.140.1.2.2

Authority Information Access: OCSP - URI:http://ocsp.affirmtrust.com
CA Issuers - URI:http://aia.affirmtrust.com/aftov1ca.crt

SCT List: Signed Certificate Timestamp:
Version : v1 (0x0)
Log ID : 87:75:BF:E7:59:7C:F8:8C:43:99:5F:BD:F3:6E:FF:56:
8D:47:56:36:FF:4A:B5:60:C1:B4:EA:FF:5E:A0:83:0F
Timestamp : Oct 29 14:31:27.706 2019 GMT
Extensions: none
Signature : ecdsa-with-SHA256
30:46:02:21:00:CE:19:B3:27:C2:49:23:A8:74:CF:06:
AB:FC:0D:AD:6E:EC:0A:AE:9A:FB:22:C1:06:5C:2D:68:
F1:D4:BD:10:98:02:21:00:BE:9E:2E:3A:D0:F3:F7:7A:
EA:34:BC:B0:76:11:69:B5:85:64:05:A5:B1:18:55:4E:
0C:19:F6:92:A2:F7:66:AB
Signed Certificate Timestamp:
Version : v1 (0x0)
Log ID : 55:81:D4:C2:16:90:36:01:4A:EA:0B:9B:57:3C:53:F0:
C0:E4:38:78:70:25:08:17:2F:A3:AA:1D:07:13:D3:0C
Timestamp : Oct 29 14:31:27.727 2019 GMT
Extensions: none
Signature : ecdsa-with-SHA256
30:45:02:20:27:CE:95:12:1C:FF:CF:46:C3:7F:8E:D4:
5F:85:83:3E:C6:01:85:E1:21:53:03:E6:AA:22:A1:0F:
0E:A7:E2:86:02:21:00:99:13:B6:29:49:06:61:3C:AB:
9F:0C:AB:0B:BC:F2:96:CB:D4:40:0B:3F:1D:6B:D8:E5:
85:CB:97:A1:E7:B3:A5
Signed Certificate Timestamp:
Version : v1 (0x0)
Log ID : A4:B9:09:90:B4:18:58:14:87:BB:13:A2:CC:67:70:0A:
3C:35:98:04:F9:1B:DF:B8:E3:77:CD:0E:C8:0D:DC:10
Timestamp : Oct 29 14:31:27.675 2019 GMT
Extensions: none
Signature : ecdsa-with-SHA256
30:44:02:20:23:D0:CE:CA:AD:4B:49:22:AD:D0:DB:33:
35:C7:3B:44:32:28:9A:19:13:6B:C7:C9:FE:8C:A6:D1:
9B:B7:8D:A0:02:20:75:DC:8E:B8:EA:BD:A9:1F:8C:4D:
FB:B2:58:2C:A9:BB:25:9E:E5:DB:18:CC:E1:B1:5B:3A:
59:30:75:43:66:8E
Signed Certificate Timestamp:
Version : v1 (0x0)
Log ID : 56:14:06:9A:2F:D7:C2:EC:D3:F5:E1:BD:44:B2:3E:C7:
46:76:B9:BC:99:11:5C:C0:EF:94:98:55:D6:89:D0:DD
Timestamp : Oct 29 14:31:27.765 2019 GMT
Extensions: none
Signature : ecdsa-with-SHA256
30:46:02:21:00:92:B6:51:B5:BC:3D:35:97:98:D6:FA:
22:F1:6F:38:01:F9:4F:33:BA:0A:FD:99:9E:A5:9D:A1:
68:B3:7D:F0:EF:02:21:00:95:88:7F:10:9E:03:7C:FB:
0B:49:A0:06:30:6E:6E:F7:AE:05:AE:BF:F5:A9:36:FC:
F4:D0:5E:B6:F3:C1:67:C8
Key Usage: Digital Signature, Key Encipherment
Basic Constraints: CA:FALSE
Subject Alternative Name: DNS:aurochs-web-155.nsms.ox.ac.uk
DNS:aurochs.nsms.ox.ac.uk
DNS:ox.ac.uk
DNS:oxfordtoday.ox.ac.uk
DNS:www.clarendon.ox.ac.uk
DNS:www.ox.ac.uk
DNS:www.oxfordtoday.ox.ac.uk
DNS:aurochs-web-154.nsms.ox.ac.uk
Technical

DNS Lookup

A Records

Host IP Address Class TTL
ox.ac.uk. 129.67.242.154 IN 299
ox.ac.uk. 129.67.242.155 IN 299

NS Records

Host Nameserver Class TTL
ox.ac.uk. auth4.dns.ox.ac.uk. IN 21599
ox.ac.uk. dns0.ox.ac.uk. IN 21599
ox.ac.uk. dns2.ox.ac.uk. IN 21599
ox.ac.uk. ns2.ja.net. IN 21599
ox.ac.uk. auth6.dns.ox.ac.uk. IN 21599
ox.ac.uk. auth5.dns.ox.ac.uk. IN 21599
ox.ac.uk. dns1.ox.ac.uk. IN 21599

MX Records

Priority Host Server Class TTL
9 ox.ac.uk. in.hes.trendmicro.eu. IN 299

SOA Records

Domain Name Primary NS Responsible Email TTL
ox.ac.uk. raptor.dns.ox.ac.uk. hostmaster.ox.ac.uk. 299

TXT Records

Host Value Class TTL
ox.ac.uk. QuoVadis=4a119f48-a33d-41ff-8de9-cfc3ba8ec1d7 IN 299
ox.ac.uk. hes=3c57da24c0cf354d2d270f87f9033045 IN 299
ox.ac.uk. google-site-verification=qb4BUD5Usjh0Nep0wKIkZIlLSR2rrXsD5PvYGIiKJtA IN 299
ox.ac.uk. v=spf1 IN 299
ox.ac.uk. 1FBF055C-7912-4406-8091-79206812E154 IN 299
ox.ac.uk. MS=ms57844111 IN 299
ox.ac.uk. ueG8e2rFCvZiPIxG4L1VRVcqLV6m3yrjJCRro8ZHPiZDX7y6xFsvBuCirQG9MAFSaqKwX55TK/G0WVh68yAoTg== IN 299
ox.ac.uk. 022fc977acdd42cabb4a3cd9d17138bb IN 299

HTTP Response Headers

HTTP-Code: HTTP/1.1 200 OK
Date: 28th May, 2020
Server: Apache
Cache-Control: public, max-age=1800
Content-Type: text/html; charset=utf-8
X-Powered-By: PHP/5.4.45-0+deb7u29
X-Drupal-Cache: HIT
X-Frame-Options: ALLOW-FROM https://canvas.ox.ac.uk
Content-Language: en
Link: <http://www.ox.ac.uk/>; rel="canonical",<http://www.ox.ac.uk/>; rel="shortlink"
Vary: Cookie,Accept-Encoding,X-Forwarded-Proto
X-Content-Type-Options: nosniff
Last-Modified: 28th May, 2020
X-Varnish: 45610238 45592160
Age: 517
Via: 1.1 varnish
X-Cache: HIT

Whois Lookup

Created: 31st July, 1996
Changed:
Expires:
Registrar: No registrar listed. This domain is directly registered with Nominet.
Status:
Nameservers: auth03.ns.uu.net
ns0.ja.net
ns1.surfnet.nl
ns2.ja.net
ns3.ja.net
ns4.ja.net
ws-fra1.win-ip.dfn.de
Owner Organization: The JNT Association
Full Whois: Domain name:
ac.uk

Registrant:
The JNT Association

Registrant type:
Other

Registrant's address:
Lumen House
Library Avenue
Harwell
Didcot
OX11 OSG
GB

Registrar:
No registrar listed. This domain is directly registered with Nominet.

Relevant dates:
Registered on: before Aug-1996
Registration status:
No registration status listed.

Name servers:
ns0.ja.net.
ns2.ja.net.
ns3.ja.net.
ns4.ja.net.
auth03.ns.uu.net.
ns1.surfnet.nl.
ws-fra1.win-ip.dfn.de.


WHOIS lookup made at 12:21:28 28-May-2020

--
This WHOIS information is provided for free by Nominet UK the central registry
for .uk domain names. This information and the .uk WHOIS are:

Copyright Nominet UK 1996 - 2020.

You may not access the .uk WHOIS or use any data from it except as permitted
by the terms of use available in full at https://www.nominet.uk/whoisterms,
which includes restrictions on: (A) use of the data for advertising, or its
repackaging, recompilation, redistribution or reuse (B) obscuring, removing
or hiding any or all of this notice and (C) exceeding query rate or volume
limits. The data is provided on an 'as-is' basis and may lag behind the
register. Access may be withdrawn or restricted at any time.

Nameservers

Name IP Address
auth03.ns.uu.net 198.6.1.83
ns0.ja.net 193.63.94.20
ns1.surfnet.nl 192.87.106.101
ns2.ja.net 193.63.105.17
ns3.ja.net 193.63.106.103
ns4.ja.net 193.62.157.66
ws-fra1.win-ip.dfn.de 193.174.75.178
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