UNIVERSITEITLEIDEN.NL Home - Universiteit Leiden

universiteitleiden.nl Website Information

Daily Unique Visits: 354,883

Daily Page Views: 2,839,064

Income Per Day: $2,839

Estimated Value: $3,066,120

This website is located in Netherlands and is using following IP address 132.229.13.193. See the complete list of popular websites hosted in Netherlands.

universiteitleiden.nl is registered under .NL top-level domain. Please check other sites in .NL zone.

Website universiteitleiden.nl is using the following name servers:

  • indigo.leidenuniv.nl
  • violet.leidenuniv.nl

and is probably hosted by SURFnet bv. See the full list of other websites hosted by SURFnet bv.

The highest website universiteitleiden.nl position in Alexa rank database was 4245 and the lowest rank position was 4788. Current position of universiteitleiden.nl in Alexa rank database is 4294.

Desktop speed score of universiteitleiden.nl (69/100) is better than the results of 49.24% of other sites and shows that the page desktop performance can be improved.

Mobile usability score of universiteitleiden.nl (99/100) is better than the results of 79.46% of other sites and means that the page is mobile-friendly.

Mobile speed score of universiteitleiden.nl (60/100) is better than the results of 54.7% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.

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universiteitleiden.nl 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.


universiteitleiden.nl 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: universiteitleiden.nl
Status: active

Registrar:
Universiteit Leiden
Niels Bohrweg 1
2333CA Leiden
Netherlands

Abuse Contact:
abuse@leidenuniv.nl

Creation Date: 2001-02-09

Updated Date: 2021-05-18

DNSSEC: no

Domain nameservers:
edns5.ultradns.com
edns5.ultradns.org

Record maintained by: NL Domain Registry

Copyright notice
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permission of the Foundation for Internet Domain Registration in the
Netherlands (SIDN).
These restrictions apply equally to registrars, except in that
reproductions and publications are permitted insofar as they are
reasonable, necessary and solely in the context of the registration
activities referred to in the General Terms and Conditions for .nl
Registrars.
Any use of this material for advertising, targeting commercial offers or
similar activities is explicitly forbidden and liable to result in legal
action. Anyone who is aware or suspects that such activities are taking
place is asked to inform the Foundation for Internet Domain Registration
in the Netherlands.
(c) The Foundation for Internet Domain Registration in the Netherlands
(SIDN) Dutch Copyright Act, protection of authors' rights (Section 10,
subsection 1, clause 1).

universiteitleiden.nl server information

Servers Location

universiteitleiden.nl desktop page speed rank

Last tested: 2019-10-04


Desktop Speed Medium
69/100

universiteitleiden.nl Desktop Speed Test Quick Summary


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priority - 4Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 1 blocking CSS resources. This causes a delay in rendering your page.

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https://www.universiteitleiden.nl/ul2external/styles/screen.css?v=1.96.00

priority - 3Leverage 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.

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priority - 0Minify HTML

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Minifying https://www.universiteitleiden.nl/ could save 768B (14% reduction) after compression.

universiteitleiden.nl Desktop Resource Breakdown

Total Resources51
Number of Hosts14
Static Resources31
JavaScript Resources22
CSS Resources1

universiteitleiden.nl mobile page speed rank

Last tested: 2019-10-04


Mobile Speed Bad
60/100

universiteitleiden.nl Mobile Speed Test Quick Summary


priority - 42Optimize images

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priority - 16Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 1 blocking CSS resources. This causes a delay in rendering your page.

Optimize CSS Delivery of the following:

https://www.universiteitleiden.nl/ul2external/styles/screen.css?v=1.96.00

priority - 8Prioritize visible content

Your page requires additional network round trips to render the above-the-fold content. For best performance, reduce the amount of HTML needed to render above-the-fold content.

The entire HTML response was not sufficient to render the above-the-fold content. This usually indicates that additional resources, loaded after HTML parsing, were required to render above-the-fold content. Prioritize visible content that is needed for rendering above-the-fold by including it directly in the HTML response.

Only about 36% of the final above-the-fold content could be rendered with the full HTML response.
Click to see the screenshot with only the HTML response:

priority - 5Leverage 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.googletagmanager.com/gtm.js?id=GTM-MR67S7X (15 minutes)
https://connect.facebook.net/en_US/fbevents.js (20 minutes)
https://connect.facebook.net/signals/config/346368…44803?v=2.9.4&r=stable (20 minutes)
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https://www.google-analytics.com/analytics.js (2 hours)

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 768B (14% reduction).

Minifying https://www.universiteitleiden.nl/ could save 768B (14% reduction) after compression.

universiteitleiden.nl Mobile Resource Breakdown

Total Resources52
Number of Hosts14
Static Resources32
JavaScript Resources22
CSS Resources1

universiteitleiden.nl mobile page usability

Last tested: 2019-10-04


Mobile Usability Good
99/100

universiteitleiden.nl Mobile Usability Test Quick Summary


priority - 0Size 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="/onderwijs/bachelors">Bacheloropleidingen</a> and 4 others are close to other tap targets.

universiteitleiden.nl HTML validation

Errors

When the “srcset” attribute has any image candidate string with a width descriptor, the “sizes” attribute must also be present.

Line: 180 Column: 9 - 680
"...> <img src="/binaries/content/gallery/ul2/main-images/general/homepage-headers/header-oratie-irth-medicijnontwikkeling-lab-laboratorium-2.png/header-oratie-irth-medicijnontwikkeling-lab-laboratorium-2.png/d480xvar" srcset="/binaries/content/gallery/ul2/main-images/general/homepage-headers/header-oratie-irth-medicijnontwikkeling-lab-laboratorium-2.png/header-oratie-irth-medicijnontwikkeling-lab-laboratorium-2.png/d480xvar 480w, /binaries/content/gallery/ul2/main-images/general/homepage-headers/header-oratie-irth-medicijnontwikkeling-lab-laboratorium-2.png/header-oratie-irth-medicijnontwikkeling-lab-laboratorium-2.png/d1400xvar 1400w" data-bgset=".home-hero" alt="" /> ..."

Element “p” not allowed as child of element “h1” in this context. (Suppressing further errors from this subtree.)

Line: 184 Column: 9 - 11
"...> <h1><p>Op zoe..."

Warnings

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: 184 Column: 5 - 8
"...e</p> <h1><p>Op ..."

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universiteitleiden.nl Ping

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