ucl.ac.uk Website Information
Daily Unique Visits: 2,392,255
Daily Page Views: 19,138,040
Income Per Day: $19,138
Estimated Value: $20,669,040
This website is located in United Kingdom and is using following IP address 144.82.250.24. See the complete list of popular websites hosted in United Kingdom.
ucl.ac.uk is registered under .UK top-level domain. Please check other sites in .UK zone.
Website ucl.ac.uk is using the following name servers:
- dns-ns0.ucl.ac.uk
- dns-ns1.ucl.ac.uk
- ns1.cs.ucl.ac.uk
- ns2.ja.net
and is probably hosted by Jisc Services Limited. See the full list of other websites hosted by Jisc Services Limited.
The highest website ucl.ac.uk position in Alexa rank database was 629 and the lowest rank position was 682. Current position of ucl.ac.uk in Alexa rank database is 637.
Desktop speed score of ucl.ac.uk (22/100) is better than the results of 4.83% of other sites and shows that the page desktop performance can be improved.
Mobile usability score of ucl.ac.uk (98/100) is better than the results of 55.61% of other sites and means that the page is mobile-friendly.
Mobile speed score of ucl.ac.uk (98/100) is better than the results of 95.71% of other sites and shows that the landing page performance on mobile devices is excellent.
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ucl.ac.uk Alexa Rank
The traffic rank is based on three months of aggregated historical traffic data from millions of Alexa Toolbar users and is a combined measure of page views and users.
ucl.ac.uk whois
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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.
dns-3.dfn.de.
WHOIS lookup made at 00:44:41 25-Apr-2021
--
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 - 2021.
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.
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.
dns-3.dfn.de.
WHOIS lookup made at 00:44:41 25-Apr-2021
--
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 - 2021.
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.
ucl.ac.uk server information
Servers Location
ucl.ac.uk desktop page speed rank
Last tested: 2019-12-04
Desktop Speed
Bad
22/100
ucl.ac.uk Desktop Speed Test Quick Summary
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priority - 33Leverage browser caching
Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.
Leverage browser caching for the following cacheable resources:
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https://www.ucl.ac.uk/home/sites/home/files/homepa…ers-still-1060x597.jpg (2.7 hours)
https://www.ucl.ac.uk/home/sites/home/files/homepa…airecolomb-376x282.png (2.7 hours)
https://www.ucl.ac.uk/home/sites/home/files/homepa…-kisumchan-376x282.png (2.7 hours)
https://www.ucl.ac.uk/home/sites/home/files/homepa…thinking-alzheimer.gif (2.7 hours)
https://www.ucl.ac.uk/home/sites/home/files/homepa…g-still-1060x597_0.jpg (2.7 hours)
https://www.ucl.ac.uk/home/sites/home/files/homepa…ven_knight_376x282.png (2.7 hours)
https://www.ucl.ac.uk/home/sites/home/files/homepa…cl_minds_1060_5971.jpg (2.7 hours)
https://www.ucl.ac.uk/home/sites/home/files/homepa…s-still-1060x597_0.jpg (2.7 hours)
https://www.ucl.ac.uk/news/sites/news/files/800px-hiv-budding-color.jpg (2.7 hours)
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https://www.ucl.ac.uk/news/sites/news/files/planet_1.jpg (2.7 hours)
https://www.ucl.ac.uk/news/sites/news/files/styles…eb_0.png?itok=sq0Sd5M7 (2.7 hours)
https://www.ucl.ac.uk/news/sites/news/files/styles…_web.png?itok=9bX8WbtF (2.7 hours)
https://www.ucl.ac.uk/news/sites/news/files/styles…1920.jpg?itok=DDOTGLpr (2.7 hours)
https://www.ucl.ac.uk/news/sites/news/files/styles…ntre.jpg?itok=rtksNfvU (2.7 hours)
https://www.ucl.ac.uk/news/sites/news/files/styles…00_0.jpg?itok=T5pdKg-- (2.7 hours)
https://sjs.bizographics.com/insight.min.js (6 hours)
priority - 30Enable compression
Compressing resources with gzip or deflate can reduce the number of bytes sent over the network.
Enable compression for the following resources to reduce their transfer size by 292.4KiB (78% reduction).
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Compressing https://www.ucl.ac.uk/home/sites/all/modules/custo…omepage.min.css?q1hljr could save 57.4KiB (86% reduction).
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Compressing https://www.ucl.ac.uk/home/sites/all/modules/custo…/home-course-finder.js could save 3.1KiB (75% reduction).
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priority - 12Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 13 blocking script resources and 16 blocking CSS resources. This causes a delay in rendering your page.
Remove render-blocking JavaScript:
https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.js
https://cdnjs.cloudflare.com/ajax/libs/OwlCarousel2/2.2.1/owl.carousel.js
https://www.ucl.ac.uk/home/sites/all/modules/custo…rnizr-custom.js?q1hljr
https://www.ucl.ac.uk/home/sites/all/modules/custo…es/js/layout.js?q1hljr
https://www.ucl.ac.uk/home/sites/home/files/google…e_tag.script.js?q1hljr
https://www.ucl.ac.uk/home/misc/jquery-extend-3.4.0.js?v=1.10.2
https://www.ucl.ac.uk/home/misc/jquery.once.js?v=1.2
https://www.ucl.ac.uk/home/misc/drupal.js?q1hljr
https://cdn.ucl.ac.uk/indigo/js/lib/modernizr-custom.js
https://cdn.ucl.ac.uk/indigo/js/lib/require.min.js
https://www.ucl.ac.uk/home/sites/all/modules/custo…ack/js/embed.js?q1hljr
https://www.ucl.ac.uk/home/sites/all/modules/custo…siwyg.filter.js?q1hljr
https://www.ucl.ac.uk/home/sites/all/modules/custo…ates/js/main.js?q1hljr
https://cdnjs.cloudflare.com/ajax/libs/OwlCarousel2/2.2.1/owl.carousel.js
https://www.ucl.ac.uk/home/sites/all/modules/custo…rnizr-custom.js?q1hljr
https://www.ucl.ac.uk/home/sites/all/modules/custo…es/js/layout.js?q1hljr
https://www.ucl.ac.uk/home/sites/home/files/google…e_tag.script.js?q1hljr
https://www.ucl.ac.uk/home/misc/jquery-extend-3.4.0.js?v=1.10.2
https://www.ucl.ac.uk/home/misc/jquery.once.js?v=1.2
https://www.ucl.ac.uk/home/misc/drupal.js?q1hljr
https://cdn.ucl.ac.uk/indigo/js/lib/modernizr-custom.js
https://cdn.ucl.ac.uk/indigo/js/lib/require.min.js
https://www.ucl.ac.uk/home/sites/all/modules/custo…ack/js/embed.js?q1hljr
https://www.ucl.ac.uk/home/sites/all/modules/custo…siwyg.filter.js?q1hljr
https://www.ucl.ac.uk/home/sites/all/modules/custo…ates/js/main.js?q1hljr
Optimize CSS Delivery of the following:
https://www.ucl.ac.uk/home/modules/system/system.base.css?q1hljr
https://www.ucl.ac.uk/home/modules/system/system.messages.css?q1hljr
https://www.ucl.ac.uk/home/sites/all/modules/contr…te_api/date.css?q1hljr
https://www.ucl.ac.uk/home/sites/all/modules/contr…epicker.1.7.css?q1hljr
https://www.ucl.ac.uk/home/modules/field/theme/field.css?q1hljr
https://www.ucl.ac.uk/home/modules/node/node.css?q1hljr
https://www.ucl.ac.uk/home/sites/all/modules/custo…-feed-panes.css?q1hljr
https://www.ucl.ac.uk/home/sites/all/modules/contr…s/css/views.css?q1hljr
https://www.ucl.ac.uk/home/sites/all/modules/patch…ntity_embed.css?q1hljr
https://www.ucl.ac.uk/home/sites/all/modules/contr…ysiwyg.base.css?q1hljr
https://www.ucl.ac.uk/home/sites/all/modules/contr…/css/ctools.css?q1hljr
https://www.ucl.ac.uk/home/sites/all/modules/contr…/css/panels.css?q1hljr
https://www.ucl.ac.uk/home/sites/all/modules/featu…admin_theme.css?q1hljr
https://www.ucl.ac.uk/home/sites/all/modules/custo…/screen.min.css?q1hljr
https://www.ucl.ac.uk/home/sites/all/modules/custo…omepage.min.css?q1hljr
https://cdnjs.cloudflare.com/ajax/libs/easy-autoco…omplete.min.css?q1hljr
https://www.ucl.ac.uk/home/modules/system/system.messages.css?q1hljr
https://www.ucl.ac.uk/home/sites/all/modules/contr…te_api/date.css?q1hljr
https://www.ucl.ac.uk/home/sites/all/modules/contr…epicker.1.7.css?q1hljr
https://www.ucl.ac.uk/home/modules/field/theme/field.css?q1hljr
https://www.ucl.ac.uk/home/modules/node/node.css?q1hljr
https://www.ucl.ac.uk/home/sites/all/modules/custo…-feed-panes.css?q1hljr
https://www.ucl.ac.uk/home/sites/all/modules/contr…s/css/views.css?q1hljr
https://www.ucl.ac.uk/home/sites/all/modules/patch…ntity_embed.css?q1hljr
https://www.ucl.ac.uk/home/sites/all/modules/contr…ysiwyg.base.css?q1hljr
https://www.ucl.ac.uk/home/sites/all/modules/contr…/css/ctools.css?q1hljr
https://www.ucl.ac.uk/home/sites/all/modules/contr…/css/panels.css?q1hljr
https://www.ucl.ac.uk/home/sites/all/modules/featu…admin_theme.css?q1hljr
https://www.ucl.ac.uk/home/sites/all/modules/custo…/screen.min.css?q1hljr
https://www.ucl.ac.uk/home/sites/all/modules/custo…omepage.min.css?q1hljr
https://cdnjs.cloudflare.com/ajax/libs/easy-autoco…omplete.min.css?q1hljr
priority - 9Minify JavaScript
Compacting JavaScript code can save many bytes of data and speed up downloading, parsing, and execution time.
Minify JavaScript for the following resources to reduce their size by 88.4KiB (47% reduction).
Minifying https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.js could save 40.3KiB (51% reduction) after compression.
Minifying https://www.ucl.ac.uk/home/misc/drupal.js?q1hljr could save 13.3KiB (67% reduction).
Minifying https://www.ucl.ac.uk/home/sites/all/modules/custo…siwyg.filter.js?q1hljr could save 13KiB (67% reduction).
Minifying https://cdnjs.cloudflare.com/ajax/libs/OwlCarousel2/2.2.1/owl.carousel.js could save 6.2KiB (35% reduction) after compression.
Minifying https://www.ucl.ac.uk/home/sites/all/modules/custo…rnizr-custom.js?q1hljr could save 2.5KiB (15% reduction).
Minifying https://www.ucl.ac.uk/home/misc/jquery.once.js?v=1.2 could save 2.5KiB (84% reduction).
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Minifying https://cdnjs.cloudflare.com/ajax/libs/easy-autoco…y.easy-autocomplete.js could save 1.5KiB (22% reduction) after compression.
Minifying https://www.ucl.ac.uk/home/sites/all/modules/custo…es/js/layout.js?q1hljr could save 1.3KiB (31% reduction).
Minifying https://www.ucl.ac.uk/home/sites/all/modules/custo…es/js/lib/ug-search.js could save 1.2KiB (35% reduction).
Minifying https://www.ucl.ac.uk/home/sites/all/modules/custo…/home-course-finder.js could save 989B (24% reduction).
Minifying https://connect.facebook.net/en_GB/sdk.js could save 673B (39% reduction) after compression.
Minifying https://cdn.ucl.ac.uk/indigo/js/app/general.js could save 649B (27% reduction) after compression.
Minifying https://www.ucl.ac.uk/home/sites/all/modules/custo…ates/js/main.js?q1hljr could save 238B (13% reduction).
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Minifying https://www.ucl.ac.uk/home/sites/all/modules/custo…siwyg.filter.js?q1hljr could save 13KiB (67% reduction).
Minifying https://cdnjs.cloudflare.com/ajax/libs/OwlCarousel2/2.2.1/owl.carousel.js could save 6.2KiB (35% reduction) after compression.
Minifying https://www.ucl.ac.uk/home/sites/all/modules/custo…rnizr-custom.js?q1hljr could save 2.5KiB (15% reduction).
Minifying https://www.ucl.ac.uk/home/misc/jquery.once.js?v=1.2 could save 2.5KiB (84% reduction).
Minifying https://www.ucl.ac.uk/home/misc/jquery-extend-3.4.0.js?v=1.10.2 could save 2.1KiB (62% reduction).
Minifying https://www.ucl.ac.uk/home/sites/all/modules/custo…ack/js/embed.js?q1hljr could save 2.1KiB (30% reduction).
Minifying https://cdnjs.cloudflare.com/ajax/libs/easy-autoco…y.easy-autocomplete.js could save 1.5KiB (22% reduction) after compression.
Minifying https://www.ucl.ac.uk/home/sites/all/modules/custo…es/js/layout.js?q1hljr could save 1.3KiB (31% reduction).
Minifying https://www.ucl.ac.uk/home/sites/all/modules/custo…es/js/lib/ug-search.js could save 1.2KiB (35% reduction).
Minifying https://www.ucl.ac.uk/home/sites/all/modules/custo…/home-course-finder.js could save 989B (24% reduction).
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Minifying https://cdn.ucl.ac.uk/indigo/js/app/general.js could save 649B (27% reduction) after compression.
Minifying https://www.ucl.ac.uk/home/sites/all/modules/custo…ates/js/main.js?q1hljr could save 238B (13% reduction).
priority - 7Avoid landing page redirects
Your page has 2 redirects. Redirects introduce additional delays before the page can be loaded.
Avoid landing page redirects for the following chain of redirected URLs.
http://ucl.ac.uk/
http://www.ucl.ac.uk/
https://www.ucl.ac.uk/
http://www.ucl.ac.uk/
https://www.ucl.ac.uk/
priority - 4Minify CSS
Compacting CSS code can save many bytes of data and speed up download and parse times.
Minify CSS for the following resources to reduce their size by 40.6KiB (23% reduction).
Minifying https://www.ucl.ac.uk/home/sites/all/modules/custo…/screen.min.css?q1hljr could save 21KiB (23% reduction).
Minifying https://www.ucl.ac.uk/home/sites/all/modules/custo…omepage.min.css?q1hljr could save 14.5KiB (22% reduction).
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Minifying https://www.ucl.ac.uk/home/sites/all/modules/contr…te_api/date.css?q1hljr could save 979B (27% reduction).
Minifying https://www.ucl.ac.uk/home/sites/all/modules/custo…-feed-panes.css?q1hljr could save 769B (24% reduction).
Minifying https://www.ucl.ac.uk/home/sites/all/modules/patch…ntity_embed.css?q1hljr could save 203B (47% reduction).
Minifying https://www.ucl.ac.uk/home/modules/system/system.messages.css?q1hljr could save 195B (21% reduction).
Minifying https://www.ucl.ac.uk/home/sites/all/modules/contr…s/css/views.css?q1hljr could save 180B (26% reduction).
Minifying https://www.ucl.ac.uk/home/sites/all/modules/contr…/css/panels.css?q1hljr could save 164B (21% reduction).
Minifying https://cdnjs.cloudflare.com/ajax/libs/easy-autoco…omplete.min.css?q1hljr could save 162B (12% reduction) after compression.
Minifying https://www.ucl.ac.uk/home/modules/field/theme/field.css?q1hljr could save 120B (22% reduction).
Minifying https://www.ucl.ac.uk/home/sites/all/modules/contr…ysiwyg.base.css?q1hljr could save 119B (33% reduction).
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Minifying https://www.ucl.ac.uk/home/modules/system/system.base.css?q1hljr could save 2.3KiB (44% reduction).
Minifying https://www.ucl.ac.uk/home/sites/all/modules/contr…te_api/date.css?q1hljr could save 979B (27% reduction).
Minifying https://www.ucl.ac.uk/home/sites/all/modules/custo…-feed-panes.css?q1hljr could save 769B (24% reduction).
Minifying https://www.ucl.ac.uk/home/sites/all/modules/patch…ntity_embed.css?q1hljr could save 203B (47% reduction).
Minifying https://www.ucl.ac.uk/home/modules/system/system.messages.css?q1hljr could save 195B (21% reduction).
Minifying https://www.ucl.ac.uk/home/sites/all/modules/contr…s/css/views.css?q1hljr could save 180B (26% reduction).
Minifying https://www.ucl.ac.uk/home/sites/all/modules/contr…/css/panels.css?q1hljr could save 164B (21% reduction).
Minifying https://cdnjs.cloudflare.com/ajax/libs/easy-autoco…omplete.min.css?q1hljr could save 162B (12% reduction) after compression.
Minifying https://www.ucl.ac.uk/home/modules/field/theme/field.css?q1hljr could save 120B (22% reduction).
Minifying https://www.ucl.ac.uk/home/sites/all/modules/contr…ysiwyg.base.css?q1hljr could save 119B (33% reduction).
priority - 4Minify HTML
Compacting HTML code, including any inline JavaScript and CSS contained in it, can save many bytes of data and speed up download and parse times.
Minify HTML for the following resources to reduce their size by 40KiB (43% reduction).
Minifying https://www.ucl.ac.uk/ could save 39.9KiB (44% reduction).
Minifying https://tr.snapchat.com/cm/i? could save 119B (18% reduction).
Minifying https://tr.snapchat.com/cm/i? could save 119B (18% reduction).
ucl.ac.uk Desktop Resource Breakdown
| Total Resources | 159 |
| Number of Hosts | 47 |
| Static Resources | 109 |
| JavaScript Resources | 55 |
| CSS Resources | 18 |
ucl.ac.uk mobile page speed rank
Last tested: 2018-02-08
Mobile Speed
Good
98/100
ucl.ac.uk Mobile Speed Test Quick Summary
priority - 1Leverage browser caching
Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.
Leverage browser caching for the following cacheable resources:
https://static.doubleclick.net/instream/ad_status.js (15 minutes)
http://www.google-analytics.com/ga.js (2 hours)
http://www.google-analytics.com/ga.js (2 hours)
priority - 0Optimize images
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 2.9KiB (89% reduction).
Compressing http://cdn.ucl.ac.uk/indigo/images/close.png could save 2.9KiB (89% reduction).
priority - 0Enable compression
Compressing resources with gzip or deflate can reduce the number of bytes sent over the network.
Enable compression for the following resources to reduce their transfer size by 299B (41% reduction).
Compressing https://www.youtube.com/iframe_api could save 299B (41% reduction).
ucl.ac.uk Mobile Resource Breakdown
| Total Resources | 27 |
| Number of Hosts | 11 |
| Static Resources | 16 |
| JavaScript Resources | 12 |
| CSS Resources | 2 |
ucl.ac.uk mobile page usability
Last tested: 2018-02-08
Mobile Usability
Good
98/100
ucl.ac.uk Mobile Usability Test Quick Summary
priority - 1Size tap targets appropriately
Some of the links/buttons on your webpage may be too small for a user to easily tap on a touchscreen. Consider making these tap targets larger to provide a better user experience.
The following tap targets are close to other nearby tap targets and may need additional spacing around them.
The tap target
The tap target
The tap target
The tap target
<a href="https://twitte…om/Independent">@Independent</a> and 1 others are close to other tap targets.The tap target
<a href="https://www.yo…?v=mp133liHzBo" class="ytp-watermark…ix-sessionlink"></a> is close to 1 other tap targets.The tap target
<a href="https://twitter.com/ucl"></a> and 6 others are close to other tap targets.The tap target
<a href="http://www.ucl….uk/disclaimer">Disclaimer</a> and 6 others are close to other tap targets.ucl.ac.uk HTML validation
Errors
Attribute “xmlns:fb” not allowed here.
Line: 2 Column: 16 - 110
"...type html> <html lang="en" dir="ltr" xmlns:fb="http://ogp.me/ns/fb#" itemscope itemtype="http://schema.org/Organization"> <head..."
"...type html> <html lang="en" dir="ltr" xmlns:fb="http://ogp.me/ns/fb#" itemscope itemtype="http://schema.org/Organization"> <head..."
Bad value “screen, projection” for attribute “media” on element “link”: Deprecated media type “projection”. For guidance, see the Media Types section in the current Media Queries specification.
Line: 47 Column: 1 - 147
"...endif]--> <link href='//static.ucl.ac.uk/silva/UCLDefaultLayoutV4/css/screen/uclSearch.min.css' media='screen, projection' rel='stylesheet' type='text/css'/> <me..." Line: 454 Column: 482 - 628
"...SL4.css"/><link href='//static.ucl.ac.uk/silva/UCLDefaultLayoutV4/css/screen/uclSearch.min.css' media='screen, projection' rel='stylesheet' type='text/css'/></nosc..."
"...endif]--> <link href='//static.ucl.ac.uk/silva/UCLDefaultLayoutV4/css/screen/uclSearch.min.css' media='screen, projection' rel='stylesheet' type='text/css'/> <me..." Line: 454 Column: 482 - 628
"...SL4.css"/><link href='//static.ucl.ac.uk/silva/UCLDefaultLayoutV4/css/screen/uclSearch.min.css' media='screen, projection' rel='stylesheet' type='text/css'/></nosc..."
Attribute “http-equiv” not allowed on element “meta” at this point.
Line: 63 Column: 28 - 120
"...<noscript><meta HTTP-EQUIV="refresh" content="0;url='http://www.ucl.ac.uk/home/?PageSpeed=noscript'" /><style..."
"...<noscript><meta HTTP-EQUIV="refresh" content="0;url='http://www.ucl.ac.uk/home/?PageSpeed=noscript'" /><style..."
Element “meta” is missing one or more of the following attributes: “itemprop”, “property”.
Line: 63 Column: 28 - 120
"...<noscript><meta HTTP-EQUIV="refresh" content="0;url='http://www.ucl.ac.uk/home/?PageSpeed=noscript'" /><style..."
"...<noscript><meta HTTP-EQUIV="refresh" content="0;url='http://www.ucl.ac.uk/home/?PageSpeed=noscript'" /><style..."
Element “style” not allowed as child of element “noscript” in this context. (Suppressing further errors from this subtree.)
Line: 63 Column: 121 - 127
"...cript'" /><style><!--ta..."
"...cript'" /><style><!--ta..."
Duplicate attribute “role”.
Line: 103 Column: - 48
"...-masthead" role="header"> ..."
"...-masthead" role="header"> ..."
Attribute “pagespeed_no_defer” not allowed on element “script” at this point.
Line: 204 Column: 86 - 115
"...r-school"><script pagespeed_no_defer="">//<![C..." Line: 450 Column: 1 - 53
"... </div> <script type="text/javascript" pagespeed_no_defer="">pagesp..." Line: 454 Column: 640 - 669
".../noscript><script pagespeed_no_defer="">//<![C..." Line: 458 Column: 15 - 44
"...></script><script pagespeed_no_defer="">//<![C..."
"...r-school"><script pagespeed_no_defer="">//<![C..." Line: 450 Column: 1 - 53
"... </div> <script type="text/javascript" pagespeed_no_defer="">pagesp..." Line: 454 Column: 640 - 669
".../noscript><script pagespeed_no_defer="">//<![C..." Line: 458 Column: 15 - 44
"...></script><script pagespeed_no_defer="">//<![C..."
Attribute “pagespeed_lazy_src” not allowed on element “img” at this point.
Line: 217 Column: 15 - 324
"...></script><img pagespeed_lazy_src="http://static.ucl.ac.uk/repository/silva/index.shtml/images/students/mid_page_unit_2018_03.jpg/xMid_Page_Unit_2018_03.jpg.pagespeed.ic.Zf8mvKzGDb.jpg" alt="UCL summer school 2018" src="//static.ucl.ac.uk/img/1.gif" onload="pagespeed.lazyLoadImages.loadIfVisibleAndMaybeBeacon(this);"/></a> ..." Line: 232 Column: 100 - 408
"...-surgery"><img pagespeed_lazy_src="http://static.ucl.ac.uk/repository/silva/index.shtml/images/engineering/fibre-in-needle-close-up.jpg/xFibre-in-needle-close-up.jpg.pagespeed.ic.SBIMD3JfEM.jpg" alt="fibre needle" src="//static.ucl.ac.uk/img/1.gif" onload="pagespeed.lazyLoadImages.loadIfVisibleAndMaybeBeacon(this);"/></a> ..." Line: 260 Column: 90 - 434
"...activity"><img pagespeed_lazy_src="http://static.ucl.ac.uk/repository/silva/index.shtml/images/life_sciences/rsz_human-male-white-newborn-baby-crying.jpg/xrsz_human-male-white-newborn-baby-crying.jpg.pagespeed.ic.lO1gS8bruw.jpg" alt="crying newborn" src="//static.ucl.ac.uk/img/1.gif" onload="pagespeed.lazyLoadImages.loadIfVisibleAndMaybeBeacon(this);"/></a> ..." Line: 275 Column: 11 - 216
"... <img alt="" pagespeed_lazy_src="http://static.ucl.ac.uk/img/xtwitter.png.pagespeed.ic.QFC7G96taY.png" src="//static.ucl.ac.uk/img/1.gif" onload="pagespeed.lazyLoadImages.loadIfVisibleAndMaybeBeacon(this);"> ..." Line: 319 Column: 94 - 380
"...e-longer"><img pagespeed_lazy_src="http://static.ucl.ac.uk/repository/silva/index.shtml/images/life_sciences/flies-for-web.jpg/xflies-for-web.jpg.pagespeed.ic.m10lN3Od26.jpg" alt="Drosophila" src="//static.ucl.ac.uk/img/1.gif" onload="pagespeed.lazyLoadImages.loadIfVisibleAndMaybeBeacon(this);"/></a> ..." Line: 336 Column: 92 - 414
"...economic"><img pagespeed_lazy_src="http://static.ucl.ac.uk/repository/silva/index.shtml/images/social_and_historical_sciences/fco_resized.jpg/xFCO_resized.jpg.pagespeed.ic.I3AWwU5GTr.jpg" alt="Foreign & Commonwealth Office" src="//static.ucl.ac.uk/img/1.gif" onload="pagespeed.lazyLoadImages.loadIfVisibleAndMaybeBeacon(this);"/></a> ..." Line: 353 Column: 70 - 369
"...iversary"><img pagespeed_lazy_src="http://static.ucl.ac.uk/repository/silva/index.shtml/images/events/campaign-one-year/xcampaign-one-year.png.pagespeed.ic.MH6Lsf2Z9m.jpg" alt="The Campaign - one year on" src="//static.ucl.ac.uk/img/1.gif" onload="pagespeed.lazyLoadImages.loadIfVisibleAndMaybeBeacon(this);"/></a> ..." Line: 371 Column: 43 - 251
"....com/ucl"><img pagespeed_lazy_src="//static.ucl.ac.uk/img/xtwitter.png.pagespeed.ic.QFC7G96taY.png" alt="Twitter" src="//static.ucl.ac.uk/img/1.gif" onload="pagespeed.lazyLoadImages.loadIfVisibleAndMaybeBeacon(this);"/></a></..." Line: 372 Column: 56 - 266
"...official"><img pagespeed_lazy_src="//static.ucl.ac.uk/img/xfacebook.png.pagespeed.ic.-VUStBF1gm.png" alt="Facebook" src="//static.ucl.ac.uk/img/1.gif" onload="pagespeed.lazyLoadImages.loadIfVisibleAndMaybeBeacon(this);"/></a></..." Line: 373 Column: 48 - 261
"...om/ucltv"><img pagespeed_lazy_src="//static.ucl.ac.uk/img/xyoutube-icon.png.pagespeed.ic.3mSREHVRmx.png" alt="YouTube" src="//static.ucl.ac.uk/img/1.gif" onload="pagespeed.lazyLoadImages.loadIfVisibleAndMaybeBeacon(this);"/></a></..." Line: 374 Column: 51 - 265
"...uclsound"><img pagespeed_lazy_src="//static.ucl.ac.uk/img/xsoundcloud.png.pagespeed.ic.6sxBTe1Z7q.png" alt="SoundCloud" src="//static.ucl.ac.uk/img/1.gif" onload="pagespeed.lazyLoadImages.loadIfVisibleAndMaybeBeacon(this);"/></a></..." Line: 375 Column: 56 - 262
".../uclnews"><img pagespeed_lazy_src="//static.ucl.ac.uk/img/xflickr.png.pagespeed.ic.KdAnMQjbrP.png" alt="Flickr" src="//static.ucl.ac.uk/img/1.gif" onload="pagespeed.lazyLoadImages.loadIfVisibleAndMaybeBeacon(this);"/></a></..." Line: 376 Column: 50 - 268
"...com/ucl/"><img pagespeed_lazy_src="//static.ucl.ac.uk/img/xinstagram-badge.png.pagespeed.ic.OPAzj9OMyV.png" alt="Instagram" src="//static.ucl.ac.uk/img/1.gif" onload="pagespeed.lazyLoadImages.loadIfVisibleAndMaybeBeacon(this);"/></a></..." Line: 377 Column: 50 - 258
"...-antenna"><img pagespeed_lazy_src="//static.ucl.ac.uk/img/xantenna.png.pagespeed.ic.1-fHvaktyk.png" alt="Antenna" src="//static.ucl.ac.uk/img/1.gif" onload="pagespeed.lazyLoadImages.loadIfVisibleAndMaybeBeacon(this);"/></a></..." Line: 431 Column: 36 - 272
"....com/ucl"><img pagespeed_lazy_src="//static.ucl.ac.uk/img/35x35xtwitter.png.pagespeed.ic.McFsYiTPX-.png" alt="Twitter" width="35" height="35" src="//static.ucl.ac.uk/img/1.gif" onload="pagespeed.lazyLoadImages.loadIfVisibleAndMaybeBeacon(this);"/></a></..." Line: 432 Column: 49 - 287
"...official"><img pagespeed_lazy_src="//static.ucl.ac.uk/img/35x35xfacebook.png.pagespeed.ic.-VUStBF1gm.png" alt="Facebook" width="35" height="35" src="//static.ucl.ac.uk/img/1.gif" onload="pagespeed.lazyLoadImages.loadIfVisibleAndMaybeBeacon(this);"/></a></..." Line: 433 Column: 42 - 290
"...om/ucltv"><img pagespeed_lazy_src="//static.ucl.ac.uk/img/35x35xyoutube-icon-square.png.pagespeed.ic.GcRcZjQawu.png" alt="YouTube" width="35" height="35" src="//static.ucl.ac.uk/img/1.gif" onload="pagespeed.lazyLoadImages.loadIfVisibleAndMaybeBeacon(this);"/></a></..." Line: 434 Column: 44 - 286
"...uclsound"><img pagespeed_lazy_src="//static.ucl.ac.uk/img/35x35xsoundcloud.png.pagespeed.ic.BdtBaqtDmd.jpg" alt="SoundCloud" width="35" height="35" src="//static.ucl.ac.uk/img/1.gif" onload="pagespeed.lazyLoadImages.loadIfVisibleAndMaybeBeacon(this);"/></a></..." Line: 435 Column: 50 - 284
".../uclnews"><img pagespeed_lazy_src="//static.ucl.ac.uk/img/35x35xflickr.png.pagespeed.ic.KdAnMQjbrP.png" alt="Flickr" width="35" height="35" src="//static.ucl.ac.uk/img/1.gif" onload="pagespeed.lazyLoadImages.loadIfVisibleAndMaybeBeacon(this);"/></a></..." Line: 436 Column: 43 - 289
"...com/ucl/"><img pagespeed_lazy_src="//static.ucl.ac.uk/img/35x35xinstagram-badge.png.pagespeed.ic.OPAzj9OMyV.png" alt="Instagram" width="35" height="35" src="//static.ucl.ac.uk/img/1.gif" onload="pagespeed.lazyLoadImages.loadIfVisibleAndMaybeBeacon(this);"/></a></..." Line: 437 Column: 43 - 279
"...-antenna"><img pagespeed_lazy_src="//static.ucl.ac.uk/img/35x35xantenna.png.pagespeed.ic.1-fHvaktyk.png" alt="Antenna" width="35" height="35" src="//static.ucl.ac.uk/img/1.gif" onload="pagespeed.lazyLoadImages.loadIfVisibleAndMaybeBeacon(this);"/></a></..."
"...></script><img pagespeed_lazy_src="http://static.ucl.ac.uk/repository/silva/index.shtml/images/students/mid_page_unit_2018_03.jpg/xMid_Page_Unit_2018_03.jpg.pagespeed.ic.Zf8mvKzGDb.jpg" alt="UCL summer school 2018" src="//static.ucl.ac.uk/img/1.gif" onload="pagespeed.lazyLoadImages.loadIfVisibleAndMaybeBeacon(this);"/></a> ..." Line: 232 Column: 100 - 408
"...-surgery"><img pagespeed_lazy_src="http://static.ucl.ac.uk/repository/silva/index.shtml/images/engineering/fibre-in-needle-close-up.jpg/xFibre-in-needle-close-up.jpg.pagespeed.ic.SBIMD3JfEM.jpg" alt="fibre needle" src="//static.ucl.ac.uk/img/1.gif" onload="pagespeed.lazyLoadImages.loadIfVisibleAndMaybeBeacon(this);"/></a> ..." Line: 260 Column: 90 - 434
"...activity"><img pagespeed_lazy_src="http://static.ucl.ac.uk/repository/silva/index.shtml/images/life_sciences/rsz_human-male-white-newborn-baby-crying.jpg/xrsz_human-male-white-newborn-baby-crying.jpg.pagespeed.ic.lO1gS8bruw.jpg" alt="crying newborn" src="//static.ucl.ac.uk/img/1.gif" onload="pagespeed.lazyLoadImages.loadIfVisibleAndMaybeBeacon(this);"/></a> ..." Line: 275 Column: 11 - 216
"... <img alt="" pagespeed_lazy_src="http://static.ucl.ac.uk/img/xtwitter.png.pagespeed.ic.QFC7G96taY.png" src="//static.ucl.ac.uk/img/1.gif" onload="pagespeed.lazyLoadImages.loadIfVisibleAndMaybeBeacon(this);"> ..." Line: 319 Column: 94 - 380
"...e-longer"><img pagespeed_lazy_src="http://static.ucl.ac.uk/repository/silva/index.shtml/images/life_sciences/flies-for-web.jpg/xflies-for-web.jpg.pagespeed.ic.m10lN3Od26.jpg" alt="Drosophila" src="//static.ucl.ac.uk/img/1.gif" onload="pagespeed.lazyLoadImages.loadIfVisibleAndMaybeBeacon(this);"/></a> ..." Line: 336 Column: 92 - 414
"...economic"><img pagespeed_lazy_src="http://static.ucl.ac.uk/repository/silva/index.shtml/images/social_and_historical_sciences/fco_resized.jpg/xFCO_resized.jpg.pagespeed.ic.I3AWwU5GTr.jpg" alt="Foreign & Commonwealth Office" src="//static.ucl.ac.uk/img/1.gif" onload="pagespeed.lazyLoadImages.loadIfVisibleAndMaybeBeacon(this);"/></a> ..." Line: 353 Column: 70 - 369
"...iversary"><img pagespeed_lazy_src="http://static.ucl.ac.uk/repository/silva/index.shtml/images/events/campaign-one-year/xcampaign-one-year.png.pagespeed.ic.MH6Lsf2Z9m.jpg" alt="The Campaign - one year on" src="//static.ucl.ac.uk/img/1.gif" onload="pagespeed.lazyLoadImages.loadIfVisibleAndMaybeBeacon(this);"/></a> ..." Line: 371 Column: 43 - 251
"....com/ucl"><img pagespeed_lazy_src="//static.ucl.ac.uk/img/xtwitter.png.pagespeed.ic.QFC7G96taY.png" alt="Twitter" src="//static.ucl.ac.uk/img/1.gif" onload="pagespeed.lazyLoadImages.loadIfVisibleAndMaybeBeacon(this);"/></a></..." Line: 372 Column: 56 - 266
"...official"><img pagespeed_lazy_src="//static.ucl.ac.uk/img/xfacebook.png.pagespeed.ic.-VUStBF1gm.png" alt="Facebook" src="//static.ucl.ac.uk/img/1.gif" onload="pagespeed.lazyLoadImages.loadIfVisibleAndMaybeBeacon(this);"/></a></..." Line: 373 Column: 48 - 261
"...om/ucltv"><img pagespeed_lazy_src="//static.ucl.ac.uk/img/xyoutube-icon.png.pagespeed.ic.3mSREHVRmx.png" alt="YouTube" src="//static.ucl.ac.uk/img/1.gif" onload="pagespeed.lazyLoadImages.loadIfVisibleAndMaybeBeacon(this);"/></a></..." Line: 374 Column: 51 - 265
"...uclsound"><img pagespeed_lazy_src="//static.ucl.ac.uk/img/xsoundcloud.png.pagespeed.ic.6sxBTe1Z7q.png" alt="SoundCloud" src="//static.ucl.ac.uk/img/1.gif" onload="pagespeed.lazyLoadImages.loadIfVisibleAndMaybeBeacon(this);"/></a></..." Line: 375 Column: 56 - 262
".../uclnews"><img pagespeed_lazy_src="//static.ucl.ac.uk/img/xflickr.png.pagespeed.ic.KdAnMQjbrP.png" alt="Flickr" src="//static.ucl.ac.uk/img/1.gif" onload="pagespeed.lazyLoadImages.loadIfVisibleAndMaybeBeacon(this);"/></a></..." Line: 376 Column: 50 - 268
"...com/ucl/"><img pagespeed_lazy_src="//static.ucl.ac.uk/img/xinstagram-badge.png.pagespeed.ic.OPAzj9OMyV.png" alt="Instagram" src="//static.ucl.ac.uk/img/1.gif" onload="pagespeed.lazyLoadImages.loadIfVisibleAndMaybeBeacon(this);"/></a></..." Line: 377 Column: 50 - 258
"...-antenna"><img pagespeed_lazy_src="//static.ucl.ac.uk/img/xantenna.png.pagespeed.ic.1-fHvaktyk.png" alt="Antenna" src="//static.ucl.ac.uk/img/1.gif" onload="pagespeed.lazyLoadImages.loadIfVisibleAndMaybeBeacon(this);"/></a></..." Line: 431 Column: 36 - 272
"....com/ucl"><img pagespeed_lazy_src="//static.ucl.ac.uk/img/35x35xtwitter.png.pagespeed.ic.McFsYiTPX-.png" alt="Twitter" width="35" height="35" src="//static.ucl.ac.uk/img/1.gif" onload="pagespeed.lazyLoadImages.loadIfVisibleAndMaybeBeacon(this);"/></a></..." Line: 432 Column: 49 - 287
"...official"><img pagespeed_lazy_src="//static.ucl.ac.uk/img/35x35xfacebook.png.pagespeed.ic.-VUStBF1gm.png" alt="Facebook" width="35" height="35" src="//static.ucl.ac.uk/img/1.gif" onload="pagespeed.lazyLoadImages.loadIfVisibleAndMaybeBeacon(this);"/></a></..." Line: 433 Column: 42 - 290
"...om/ucltv"><img pagespeed_lazy_src="//static.ucl.ac.uk/img/35x35xyoutube-icon-square.png.pagespeed.ic.GcRcZjQawu.png" alt="YouTube" width="35" height="35" src="//static.ucl.ac.uk/img/1.gif" onload="pagespeed.lazyLoadImages.loadIfVisibleAndMaybeBeacon(this);"/></a></..." Line: 434 Column: 44 - 286
"...uclsound"><img pagespeed_lazy_src="//static.ucl.ac.uk/img/35x35xsoundcloud.png.pagespeed.ic.BdtBaqtDmd.jpg" alt="SoundCloud" width="35" height="35" src="//static.ucl.ac.uk/img/1.gif" onload="pagespeed.lazyLoadImages.loadIfVisibleAndMaybeBeacon(this);"/></a></..." Line: 435 Column: 50 - 284
".../uclnews"><img pagespeed_lazy_src="//static.ucl.ac.uk/img/35x35xflickr.png.pagespeed.ic.KdAnMQjbrP.png" alt="Flickr" width="35" height="35" src="//static.ucl.ac.uk/img/1.gif" onload="pagespeed.lazyLoadImages.loadIfVisibleAndMaybeBeacon(this);"/></a></..." Line: 436 Column: 43 - 289
"...com/ucl/"><img pagespeed_lazy_src="//static.ucl.ac.uk/img/35x35xinstagram-badge.png.pagespeed.ic.OPAzj9OMyV.png" alt="Instagram" width="35" height="35" src="//static.ucl.ac.uk/img/1.gif" onload="pagespeed.lazyLoadImages.loadIfVisibleAndMaybeBeacon(this);"/></a></..." Line: 437 Column: 43 - 279
"...-antenna"><img pagespeed_lazy_src="//static.ucl.ac.uk/img/35x35xantenna.png.pagespeed.ic.1-fHvaktyk.png" alt="Antenna" width="35" height="35" src="//static.ucl.ac.uk/img/1.gif" onload="pagespeed.lazyLoadImages.loadIfVisibleAndMaybeBeacon(this);"/></a></..."
Bad value “http://events.ucl.ac.uk/event/{http://www.columbasystems.com/customers/ucl/gpp/eventid/}j188-j8a7019x-wbsl2w” for attribute “href” on element “a”: Illegal character in path segment: “{” is not allowed.
Line: 249 Column: 102 - 220
"...n></p><h2><a href="http://events.ucl.ac.uk/event/{http://www.columbasystems.com/customers/ucl/gpp/eventid/}j188-j8a7019x-wbsl2w">Global..."
"...n></p><h2><a href="http://events.ucl.ac.uk/event/{http://www.columbasystems.com/customers/ucl/gpp/eventid/}j188-j8a7019x-wbsl2w">Global..."
Bad value “http://events.ucl.ac.uk/event/{http://www.columbasystems.com/customers/ucl/gpp/eventid/}t1ga-j9fv4i71-gbygsl” for attribute “href” on element “a”: Illegal character in path segment: “{” is not allowed.
Line: 249 Column: 406 - 524
"...n></p><h2><a href="http://events.ucl.ac.uk/event/{http://www.columbasystems.com/customers/ucl/gpp/eventid/}t1ga-j9fv4i71-gbygsl">..."
"...n></p><h2><a href="http://events.ucl.ac.uk/event/{http://www.columbasystems.com/customers/ucl/gpp/eventid/}t1ga-j9fv4i71-gbygsl">..."
Bad value “http://events.ucl.ac.uk/event/{http://www.columbasystems.com/customers/ucl/gpp/eventid/}p1a4-j8kaustk-ja1w1a” for attribute “href” on element “a”: Illegal character in path segment: “{” is not allowed.
Line: 249 Column: 707 - 825
"...n></p><h2><a href="http://events.ucl.ac.uk/event/{http://www.columbasystems.com/customers/ucl/gpp/eventid/}p1a4-j8kaustk-ja1w1a">Taboo ..."
"...n></p><h2><a href="http://events.ucl.ac.uk/event/{http://www.columbasystems.com/customers/ucl/gpp/eventid/}p1a4-j8kaustk-ja1w1a">Taboo ..."
Duplicate ID “social”.
Line: 430 Column: 3 - 40
"...ticle> <ul id="social" class="t1-t2 dl1-dl3"> <l..."
"...ticle> <ul id="social" class="t1-t2 dl1-dl3"> <l..."
Warnings
Attribute with the local name “xmlns:fb” is not serializable as XML 1.0.
Line: 2 Column: 16 - 110
"...type html> <html lang="en" dir="ltr" xmlns:fb="http://ogp.me/ns/fb#" itemscope itemtype="http://schema.org/Organization"> <head..."
"...type html> <html lang="en" dir="ltr" xmlns:fb="http://ogp.me/ns/fb#" itemscope itemtype="http://schema.org/Organization"> <head..."
The “navigation” role is unnecessary for element “nav”.
Line: 82 Column: 5 - 57
"...div> <nav class="masthead__nav m-clear" role="navigation"> ..."
"...div> <nav class="masthead__nav m-clear" role="navigation"> ..."
The “banner” role is unnecessary for element “header”.
Line: 103 Column: 4 - 57
"...pg)"> <header role="banner" id="ucl-masthead" role="header"> ..."
"...pg)"> <header role="banner" id="ucl-masthead" role="header"> ..."
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
Line: 197 Column: 7 - 37
"...h1> <section class="news clearfix"> ..." Line: 243 Column: 3 - 49
".../div> <section class="news divide clearfix dl-clear"> ..." Line: 289 Column: 3 - 49
"...ection> <section class="news divide clearfix dl-clear"> ..." Line: 312 Column: 3 - 49
"...ection> <section class="news divide clearfix dl-clear"> ..."
"...h1> <section class="news clearfix"> ..." Line: 243 Column: 3 - 49
".../div> <section class="news divide clearfix dl-clear"> ..." Line: 289 Column: 3 - 49
"...ection> <section class="news divide clearfix dl-clear"> ..." Line: 312 Column: 3 - 49
"...ection> <section class="news divide clearfix dl-clear"> ..."
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
Line: 272 Column: 15 - 46
"... <article class="social twitter"> ..."
"... <article class="social twitter"> ..."
The “contentinfo” role is unnecessary for element “footer”.
Line: 397 Column: 2 - 44
"...</div> <footer class="wrapper" role="contentinfo"> <a..."
"...</div> <footer class="wrapper" role="contentinfo"> <a..."
The first occurrence of ID “social” was here.
Line: 369 Column: 3 - 40
"...ction"> <ul id="social" class="t1-t2 dl1-dl3"> <..."
"...ction"> <ul id="social" class="t1-t2 dl1-dl3"> <..."
Consider using the “h1” element as a top-level heading only (all “h1” elements are treated as top-level headings by many screen readers and other tools).
Line: 118 Column: 7 - 10
"..."> <h1>Study ..." Line: 386 Column: 9 - 12
"...> <h1>About ..." Line: 153 Column: 3 - 6
"...1-dl2"> <h1>Explor..." Line: 196 Column: 8 - 11
"..."> <h1><a hre..."
"..."> <h1>Study ..." Line: 386 Column: 9 - 12
"...> <h1>About ..." Line: 153 Column: 3 - 6
"...1-dl2"> <h1>Explor..." Line: 196 Column: 8 - 11
"..."> <h1><a hre..."
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ucl.ac.uk Ping
Ping is a computer network administration software utility used to test the reachability of a host on an Internet Protocol (IP) network. It measures the round-trip time for messages sent from the originating host to a destination computer that are echoed back to the source.
ucl.ac.uk TRACEROUTE
Traceroute is a computer network diagnostic tool for displaying the route (path) and measuring transit delays of packets across an Internet Protocol (IP) network. The history of the route is recorded as the round-trip times of the packets received from each successive host (remote node) in the route (path); the sum of the mean times in each hop is a measure of the total time spent to establish the connection. Traceroute proceeds unless all (three) sent packets are lost more than twice, then the connection is lost and the route cannot be evaluated.