leidenranking.com Website Information
Daily Unique Visits: 14,394
Daily Page Views: 86,364
Income Per Day: $173
Estimated Value: $124,560
This website is located in Netherlands and is using following IP address 132.229.26.33. See the complete list of popular websites hosted in Netherlands.
leidenranking.com is registered under .COM top-level domain. Please check other sites in .COM zone.
Website leidenranking.com is using the following name servers:
- edns5.ultradns.org
- edns5.ultradns.com
and is probably hosted by SURFnet bv. See the full list of other websites hosted by SURFnet bv.
The highest website leidenranking.com position in Alexa rank database was 30893 and the lowest rank position was 999658. Current position of leidenranking.com in Alexa rank database is 99643.
Desktop speed score of leidenranking.com (70/100) is better than the results of 50.91% of other sites and shows that the page desktop performance can be improved.
Mobile usability score of leidenranking.com (69/100) is better than the results of 20.4% of other sites and means that the page is not mobile-friendly.
Mobile speed score of leidenranking.com (55/100) is better than the results of 43.86% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.
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leidenranking.com 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.
leidenranking.com whois
WHOIS gives you the ability to lookup any generic domains to find out the registered domain holder. WHOIS database are provided for information purposes only. It allows the public to check whether a specific domain name is still available or not and to obtain information related to the registration records of existing domain names.
Domain Name: LEIDENRANKING.COM
Registry Domain ID: 1584117900_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.rrpproxy.net
Registrar URL: http://www.key-systems.net
Updated Date: 2021-05-11T08:13:03Z
Creation Date: 2010-02-03T14:36:31Z
Registry Expiry Date: 2022-02-03T14:36:31Z
Registrar: Key-Systems GmbH
Registrar IANA ID: 269
Registrar Abuse Contact Email: abuse@key-systems.net
Registrar Abuse Contact Phone: +49.68949396850
Domain Status: ok https://icann.org/epp#ok
Name Server: EDNS5.ULTRADNS.COM
Name Server: EDNS5.ULTRADNS.ORG
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2022-01-01T07:27:26Z
Registry Domain ID: 1584117900_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.rrpproxy.net
Registrar URL: http://www.key-systems.net
Updated Date: 2021-05-11T08:13:03Z
Creation Date: 2010-02-03T14:36:31Z
Registry Expiry Date: 2022-02-03T14:36:31Z
Registrar: Key-Systems GmbH
Registrar IANA ID: 269
Registrar Abuse Contact Email: abuse@key-systems.net
Registrar Abuse Contact Phone: +49.68949396850
Domain Status: ok https://icann.org/epp#ok
Name Server: EDNS5.ULTRADNS.COM
Name Server: EDNS5.ULTRADNS.ORG
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2022-01-01T07:27:26Z
leidenranking.com server information
Servers Location
leidenranking.com desktop page speed rank
Last tested: 2019-09-01
Desktop Speed
Medium
70/100
leidenranking.com Desktop Speed Test Quick Summary
priority - 18Leverage 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://www.leidenranking.com/Content/images/LeidenManifesto.png (expiration not specified)
https://www.leidenranking.com/Content/images/UMultiRank.png (expiration not specified)
https://www.leidenranking.com/Content/images/envelop.png (expiration not specified)
https://www.leidenranking.com/Scripts/Miscelaneous/cookiebanner.js (expiration not specified)
https://www.leidenranking.com/Scripts/Page/Home.js (expiration not specified)
https://www.leidenranking.com/applepie/applepie_2_…-3.0/shadowbox.min.css (expiration not specified)
https://www.leidenranking.com/applepie/media/image…ts_logo_background.png (expiration not specified)
https://www.leidenranking.com/applepie/media/image…omplete_mini_white.png (expiration not specified)
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https://www.leidenranking.com/applepie/media/image…_level1_background.png (expiration not specified)
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https://www.leidenranking.com/applepie/media/image…nu/mainmenu_shader.png (expiration not specified)
https://www.leidenranking.com/applepie/media/image…vel1_mp_background.png (expiration not specified)
https://www.leidenranking.com/applepie/media/image…le/socials/socials.png (expiration not specified)
https://www.leidenranking.com/applepie/media/images/style/ui/IE_mask.png (expiration not specified)
https://www.leidenranking.com/applepie/media/image…le/ui/gallery_next.png (expiration not specified)
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https://www.leidenranking.com/content/images/banner3.png (expiration not specified)
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https://www.leidenranking.com/content/images/chart.png (expiration not specified)
https://www.leidenranking.com/content/images/list.png (expiration not specified)
https://www.leidenranking.com/content/images/maphome.png (expiration not specified)
https://www.leidenranking.com/scripts/Miscelaneous/jquery.cookie.js (expiration not specified)
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https://platform-api.sharethis.com/js/sharethis.js (60 minutes)
https://t.sharethis.com/1/d/t.dhj?cid=c010&cls=B&d….org&rnd=1567328874580 (60 minutes)
https://www.google-analytics.com/analytics.js (2 hours)
priority - 12Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 7 blocking script resources and 4 blocking CSS resources. This causes a delay in rendering your page.
Remove render-blocking JavaScript:
https://www.leidenranking.com/applepie/js?v=zSkyzt…1uMg6iqYmt7l1PLRe07RA1
https://www.leidenranking.com/Scripts/EnjoyHint/en…hint.js?v=201907171024
https://www.leidenranking.com/scripts/Miscelaneous/jquery.cookie.js
https://www.leidenranking.com/Scripts/Miscelaneous/cookiebanner.js
https://platform-api.sharethis.com/js/sharethis.js
https://www.leidenranking.com/Scripts/_Layout.js?v=201907171024
https://www.leidenranking.com/Scripts/Page/Home.js
https://www.leidenranking.com/Scripts/EnjoyHint/en…hint.js?v=201907171024
https://www.leidenranking.com/scripts/Miscelaneous/jquery.cookie.js
https://www.leidenranking.com/Scripts/Miscelaneous/cookiebanner.js
https://platform-api.sharethis.com/js/sharethis.js
https://www.leidenranking.com/Scripts/_Layout.js?v=201907171024
https://www.leidenranking.com/Scripts/Page/Home.js
Optimize CSS Delivery of the following:
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https://www.leidenranking.com/applepie/style/core.min.css?v=201907171024
https://www.leidenranking.com/applepie/applepie_2_…-3.0/shadowbox.min.css
https://www.leidenranking.com/Scripts/EnjoyHint/en…int.css?v=201907171024
https://www.leidenranking.com/applepie/style/core.min.css?v=201907171024
https://www.leidenranking.com/applepie/applepie_2_…-3.0/shadowbox.min.css
https://www.leidenranking.com/Scripts/EnjoyHint/en…int.css?v=201907171024
priority - 12Optimize images
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 112.9KiB (19% reduction).
Compressing https://www.leidenranking.com/content/images/banner3.png could save 66.6KiB (19% reduction).
Compressing https://www.leidenranking.com/content/images/banner1.png could save 33.9KiB (20% reduction).
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Compressing https://www.leidenranking.com/applepie/media/image…le/ui/gallery_next.png could save 2.7KiB (90% reduction).
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Compressing https://www.leidenranking.com/content/images/banner1.png could save 33.9KiB (20% reduction).
Compressing https://www.leidenranking.com/content/images/chart.png could save 3.5KiB (12% reduction).
Compressing https://www.leidenranking.com/applepie/media/image…le/ui/gallery_next.png could save 2.7KiB (90% reduction).
Compressing https://www.leidenranking.com/applepie/media/image…le/ui/gallery_prev.png could save 2.7KiB (91% reduction).
Compressing https://www.leidenranking.com/Content/images/LeidenManifesto.png could save 1.4KiB (13% reduction).
Compressing https://www.leidenranking.com/applepie/media/image…os/leidenuniv_logo.png could save 1,020B (11% reduction).
Compressing https://www.leidenranking.com/Content/images/envelop.png could save 744B (17% reduction).
Compressing https://i.vimeocdn.com/video/713006007.jpg?mw=80&q=85 could save 237B (17% reduction).
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priority - 0Minify 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 2.8KiB (37% reduction).
Minifying https://www.leidenranking.com/Scripts/Miscelaneous/cookiebanner.js could save 2.2KiB (41% reduction) after compression.
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Minifying https://www.leidenranking.com/Scripts/_Layout.js?v=201907171024 could save 252B (22% reduction) after compression.
Minifying https://www.leidenranking.com/scripts/Miscelaneous/jquery.cookie.js could save 300B (31% reduction) after compression.
Minifying https://www.leidenranking.com/Scripts/_Layout.js?v=201907171024 could save 252B (22% reduction) after compression.
priority - 0Minify 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 2.1KiB (17% reduction).
Minifying https://player.vimeo.com/video/279712695?loop=1&title=0&byline=0&portrait=0 could save 1.3KiB (24% reduction) after compression.
Minifying https://www.leidenranking.com/ could save 762B (11% reduction) after compression.
Minifying https://www.leidenranking.com/ could save 762B (11% reduction) after compression.
priority - 0Minify 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 267B (20% reduction).
Minifying https://www.leidenranking.com/Scripts/EnjoyHint/en…int.css?v=201907171024 could save 267B (20% reduction) after compression.
leidenranking.com Desktop Resource Breakdown
| Total Resources | 84 |
| Number of Hosts | 22 |
| Static Resources | 44 |
| JavaScript Resources | 14 |
| CSS Resources | 6 |
leidenranking.com mobile page speed rank
Last tested: 2019-09-01
Mobile Speed
Bad
55/100
leidenranking.com Mobile Speed Test Quick Summary
priority - 48Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 7 blocking script resources and 4 blocking CSS resources. This causes a delay in rendering your page.
Remove render-blocking JavaScript:
https://www.leidenranking.com/applepie/js?v=zSkyzt…1uMg6iqYmt7l1PLRe07RA1
https://www.leidenranking.com/Scripts/EnjoyHint/en…hint.js?v=201907171024
https://www.leidenranking.com/scripts/Miscelaneous/jquery.cookie.js
https://www.leidenranking.com/Scripts/Miscelaneous/cookiebanner.js
https://platform-api.sharethis.com/js/sharethis.js
https://www.leidenranking.com/Scripts/_Layout.js?v=201907171024
https://www.leidenranking.com/Scripts/Page/Home.js
https://www.leidenranking.com/Scripts/EnjoyHint/en…hint.js?v=201907171024
https://www.leidenranking.com/scripts/Miscelaneous/jquery.cookie.js
https://www.leidenranking.com/Scripts/Miscelaneous/cookiebanner.js
https://platform-api.sharethis.com/js/sharethis.js
https://www.leidenranking.com/Scripts/_Layout.js?v=201907171024
https://www.leidenranking.com/Scripts/Page/Home.js
Optimize CSS Delivery of the following:
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https://www.leidenranking.com/applepie/style/core.min.css?v=201907171024
https://www.leidenranking.com/applepie/applepie_2_…-3.0/shadowbox.min.css
https://www.leidenranking.com/Scripts/EnjoyHint/en…int.css?v=201907171024
https://www.leidenranking.com/applepie/style/core.min.css?v=201907171024
https://www.leidenranking.com/applepie/applepie_2_…-3.0/shadowbox.min.css
https://www.leidenranking.com/Scripts/EnjoyHint/en…int.css?v=201907171024
priority - 27Leverage 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://www.leidenranking.com/Content/images/LeidenManifesto.png (expiration not specified)
https://www.leidenranking.com/Content/images/UMultiRank.png (expiration not specified)
https://www.leidenranking.com/Content/images/envelop.png (expiration not specified)
https://www.leidenranking.com/Scripts/Miscelaneous/cookiebanner.js (expiration not specified)
https://www.leidenranking.com/Scripts/Page/Home.js (expiration not specified)
https://www.leidenranking.com/applepie/applepie_2_…-3.0/shadowbox.min.css (expiration not specified)
https://www.leidenranking.com/applepie/media/image…ts_logo_background.png (expiration not specified)
https://www.leidenranking.com/applepie/media/image…omplete_mini_white.png (expiration not specified)
https://www.leidenranking.com/applepie/media/image…ogo_complete_white.png (expiration not specified)
https://www.leidenranking.com/applepie/media/image…os/leidenuniv_logo.png (expiration not specified)
https://www.leidenranking.com/applepie/media/image…_level1_background.png (expiration not specified)
https://www.leidenranking.com/applepie/media/image…_background_active.png (expiration not specified)
https://www.leidenranking.com/applepie/media/image…vel1_mp_background.png (expiration not specified)
https://www.leidenranking.com/applepie/media/image…enu_level1_pointer.png (expiration not specified)
https://www.leidenranking.com/applepie/media/image…nu/mainmenu_shader.png (expiration not specified)
https://www.leidenranking.com/applepie/media/image…vel1_mp_background.png (expiration not specified)
https://www.leidenranking.com/applepie/media/image…le/socials/socials.png (expiration not specified)
https://www.leidenranking.com/applepie/media/images/style/ui/IE_mask.png (expiration not specified)
https://www.leidenranking.com/applepie/media/image…le/ui/gallery_next.png (expiration not specified)
https://www.leidenranking.com/applepie/media/image…le/ui/gallery_play.png (expiration not specified)
https://www.leidenranking.com/applepie/media/image…le/ui/gallery_prev.png (expiration not specified)
https://www.leidenranking.com/applepie/media/image…/ui/gallery_sprite.png (expiration not specified)
https://www.leidenranking.com/applepie/media/images/style/ui/preload.gif (expiration not specified)
https://www.leidenranking.com/applepie/style/gallery/preload.gif (expiration not specified)
https://www.leidenranking.com/content/images/banner1.png (expiration not specified)
https://www.leidenranking.com/content/images/banner2.png (expiration not specified)
https://www.leidenranking.com/content/images/banner3.png (expiration not specified)
https://www.leidenranking.com/content/images/banner5.png (expiration not specified)
https://www.leidenranking.com/content/images/chart.png (expiration not specified)
https://www.leidenranking.com/content/images/list.png (expiration not specified)
https://www.leidenranking.com/content/images/maphome.png (expiration not specified)
https://www.leidenranking.com/scripts/Miscelaneous/jquery.cookie.js (expiration not specified)
https://buttons-config.sharethis.com/js/5a784c3c87331000110e4b72.js (60 seconds)
https://platform-api.sharethis.com/js/sharethis.js (60 minutes)
https://t.sharethis.com/1/d/t.dhj?cid=c010&cls=B&d….org&rnd=1567339771904 (60 minutes)
https://www.google-analytics.com/analytics.js (2 hours)
https://www.leidenranking.com/Content/images/UMultiRank.png (expiration not specified)
https://www.leidenranking.com/Content/images/envelop.png (expiration not specified)
https://www.leidenranking.com/Scripts/Miscelaneous/cookiebanner.js (expiration not specified)
https://www.leidenranking.com/Scripts/Page/Home.js (expiration not specified)
https://www.leidenranking.com/applepie/applepie_2_…-3.0/shadowbox.min.css (expiration not specified)
https://www.leidenranking.com/applepie/media/image…ts_logo_background.png (expiration not specified)
https://www.leidenranking.com/applepie/media/image…omplete_mini_white.png (expiration not specified)
https://www.leidenranking.com/applepie/media/image…ogo_complete_white.png (expiration not specified)
https://www.leidenranking.com/applepie/media/image…os/leidenuniv_logo.png (expiration not specified)
https://www.leidenranking.com/applepie/media/image…_level1_background.png (expiration not specified)
https://www.leidenranking.com/applepie/media/image…_background_active.png (expiration not specified)
https://www.leidenranking.com/applepie/media/image…vel1_mp_background.png (expiration not specified)
https://www.leidenranking.com/applepie/media/image…enu_level1_pointer.png (expiration not specified)
https://www.leidenranking.com/applepie/media/image…nu/mainmenu_shader.png (expiration not specified)
https://www.leidenranking.com/applepie/media/image…vel1_mp_background.png (expiration not specified)
https://www.leidenranking.com/applepie/media/image…le/socials/socials.png (expiration not specified)
https://www.leidenranking.com/applepie/media/images/style/ui/IE_mask.png (expiration not specified)
https://www.leidenranking.com/applepie/media/image…le/ui/gallery_next.png (expiration not specified)
https://www.leidenranking.com/applepie/media/image…le/ui/gallery_play.png (expiration not specified)
https://www.leidenranking.com/applepie/media/image…le/ui/gallery_prev.png (expiration not specified)
https://www.leidenranking.com/applepie/media/image…/ui/gallery_sprite.png (expiration not specified)
https://www.leidenranking.com/applepie/media/images/style/ui/preload.gif (expiration not specified)
https://www.leidenranking.com/applepie/style/gallery/preload.gif (expiration not specified)
https://www.leidenranking.com/content/images/banner1.png (expiration not specified)
https://www.leidenranking.com/content/images/banner2.png (expiration not specified)
https://www.leidenranking.com/content/images/banner3.png (expiration not specified)
https://www.leidenranking.com/content/images/banner5.png (expiration not specified)
https://www.leidenranking.com/content/images/chart.png (expiration not specified)
https://www.leidenranking.com/content/images/list.png (expiration not specified)
https://www.leidenranking.com/content/images/maphome.png (expiration not specified)
https://www.leidenranking.com/scripts/Miscelaneous/jquery.cookie.js (expiration not specified)
https://buttons-config.sharethis.com/js/5a784c3c87331000110e4b72.js (60 seconds)
https://platform-api.sharethis.com/js/sharethis.js (60 minutes)
https://t.sharethis.com/1/d/t.dhj?cid=c010&cls=B&d….org&rnd=1567339771904 (60 minutes)
https://www.google-analytics.com/analytics.js (2 hours)
priority - 12Optimize images
Properly formatting and compressing images can save many bytes of data.
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leidenranking.com Mobile Resource Breakdown
| Total Resources | 84 |
| Number of Hosts | 22 |
| Static Resources | 44 |
| JavaScript Resources | 14 |
| CSS Resources | 6 |
leidenranking.com mobile page usability
Last tested: 2019-09-01
Mobile Usability
Medium
69/100
leidenranking.com Mobile Usability Test Quick Summary
priority - 35Use legible font sizes
The following text on your page renders in a way that may be difficult for some of your visitors to read. Use legible font sizes to provide a better user experience.
The following text fragments have a small font size. Increase the font size to make them more legible.
Home renders only 6 pixels tall (16 CSS pixels).Information and 2 others render only 6 pixels tall (16 CSS pixels).Downloads and 1 others render only 6 pixels tall (16 CSS pixels).Leiden University renders only 5 pixels tall (12 CSS pixels).CWTS B.V. and 1 others render only 5 pixels tall (12 CSS pixels).Other CWTS sites renders only 5 pixels tall (12 CSS pixels).The CWTS Leide…universities. renders only 7 pixels tall (18 CSS pixels).Chart view and 2 others render only 6 pixels tall (16 CSS pixels).Select, generate and explore and 3 others render only 7 pixels tall (18 CSS pixels).explain why th…ive (e.g., the and 12 others render only 5 pixels tall (13 CSS pixels).chart view and 6 others render only 5 pixels tall (13 CSS pixels).Multidimensional perspective and 1 others render only 7 pixels tall (18 CSS pixels).responsible us…rsity rankings and 4 others render only 5 pixels tall (13 CSS pixels).Compared with…ferent angles. and 4 others render only 5 pixels tall (13 CSS pixels).Subscribe to t…ing newsletter renders only 6 pixels tall (15 CSS pixels).July 17, 2019 and 1 others render only 5 pixels tall (13 CSS pixels).Share on Facebook and 3 others render only 6 pixels tall (16 CSS pixels).12.5k and 2 others render only 5 pixels tall (12 CSS pixels).The CWTS Leide…phia, PA, USA. renders only 5 pixels tall (12 CSS pixels).Copyright © 2019 and 2 others render only 5 pixels tall (12 CSS pixels).Centre for Sci…nology Studies and 1 others render only 5 pixels tall (12 CSS pixels).Privacy renders only 5 pixels tall (12 CSS pixels).Cookies renders only 5 pixels tall (12 CSS pixels).priority - 10Configure the viewport
Your page does not have a viewport specified. This causes mobile devices to render your page as it would appear on a desktop browser, scaling it down to fit on a mobile screen. Configure a viewport to allow your page to render properly on all devices.
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
<a href="https://www.un…tleiden.nl/en/" class="mid">Leiden University</a> is close to 1 other tap targets.The tap target
<a href="https://www.un…tleiden.nl/en/" class="mid">Leiden University</a> is close to 1 other tap targets.The tap target
<a href="https://www.cwts.nl" class="mid">CWTS</a> is close to 2 other tap targets.The tap target
<a href="https://www.cwts.nl" class="mid">CWTS</a> is close to 2 other tap targets.The tap target
<a href="https://www.cw…rsity-rankings">blog post</a> and 1 others are close to other tap targets.The tap target
<a href="http://www.leiden.edu">Leiden University</a> is close to 2 other tap targets.The tap target
<a id="privacystatement" href="#" class="popup">Privacy</a> is close to 1 other tap targets.The tap target
<a id="privacystatement" href="#" class="popup">Privacy</a> is close to 1 other tap targets.leidenranking.com HTML validation
Errors
Almost standards mode doctype. Expected “<!DOCTYPE html>”.
Line: 1 Column: 1 - 121
"...<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html..."
"...<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html..."
A “link” element with a “sizes” attribute must have a “rel” attribute that contains the value “icon” or the value “apple-touch-icon”.
Line: 28 Column: 9 - 136
"...> <link rel="apple-touch-icon-precomposed" sizes="152x152" href="/Content/images/apple-touch-icon-cwts-152x152-precomposed.png" /> ..." Line: 29 Column: 9 - 136
"...> <link rel="apple-touch-icon-precomposed" sizes="144x144" href="/Content/images/apple-touch-icon-cwts-144x144-precomposed.png" /> ..." Line: 30 Column: 9 - 136
"...> <link rel="apple-touch-icon-precomposed" sizes="120x120" href="/Content/images/apple-touch-icon-cwts-120x120-precomposed.png" /> ..." Line: 31 Column: 9 - 136
"...> <link rel="apple-touch-icon-precomposed" sizes="114x114" href="/Content/images/apple-touch-icon-cwts-114x114-precomposed.png" /> ..." Line: 32 Column: 9 - 132
"...> <link rel="apple-touch-icon-precomposed" sizes="76x76" href="/Content/images/apple-touch-icon-cwts-76x76-precomposed.png" /> ..." Line: 33 Column: 9 - 132
"...> <link rel="apple-touch-icon-precomposed" sizes="72x72" href="/Content/images/apple-touch-icon-cwts-72x72-precomposed.png" /> ..."
"...> <link rel="apple-touch-icon-precomposed" sizes="152x152" href="/Content/images/apple-touch-icon-cwts-152x152-precomposed.png" /> ..." Line: 29 Column: 9 - 136
"...> <link rel="apple-touch-icon-precomposed" sizes="144x144" href="/Content/images/apple-touch-icon-cwts-144x144-precomposed.png" /> ..." Line: 30 Column: 9 - 136
"...> <link rel="apple-touch-icon-precomposed" sizes="120x120" href="/Content/images/apple-touch-icon-cwts-120x120-precomposed.png" /> ..." Line: 31 Column: 9 - 136
"...> <link rel="apple-touch-icon-precomposed" sizes="114x114" href="/Content/images/apple-touch-icon-cwts-114x114-precomposed.png" /> ..." Line: 32 Column: 9 - 132
"...> <link rel="apple-touch-icon-precomposed" sizes="76x76" href="/Content/images/apple-touch-icon-cwts-76x76-precomposed.png" /> ..." Line: 33 Column: 9 - 132
"...> <link rel="apple-touch-icon-precomposed" sizes="72x72" href="/Content/images/apple-touch-icon-cwts-72x72-precomposed.png" /> ..."
Bad value “_new” for attribute “target” on element “a”: Reserved keyword “new” used.
Line: 522 Column: 138 - 203
"...d in this <a href="https://www.cwts.nl/blog?article=n-r2q274" target="_new">blog p..."
"...d in this <a href="https://www.cwts.nl/blog?article=n-r2q274" target="_new">blog p..."
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leidenranking.com 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.
leidenranking.com TRACEROUTE
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