LEIDENUNIV.NL Home - Universiteit Leiden


leidenuniv.nl website information.

leidenuniv.nl domain name is registered by .NL top-level domain registry. See the other sites registred in .NL domain zone.

Following name servers are specified for leidenuniv.nl domain:

  • indigo.leidenuniv.nl
  • violet.leidenuniv.nl
  • ns1.surfnet.nl

and probably website leidenuniv.nl is hosted by AMAZON-AES - Amazon.com, Inc., US web hosting company. Check the complete list of other most popular websites hosted by AMAZON-AES - Amazon.com, Inc., US hosting company.

According to Alexa traffic rank the highest website leidenuniv.nl position was 5160 (in the world). The lowest Alexa rank position was 5538. Now website leidenuniv.nl ranked in Alexa database as number 5386 (in the world).

Website leidenuniv.nl Desktop speed measurement score (71/100) is better than the results of 52.66% of other sites shows that the page desktop performance can be improved.

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

Mobile speed measurement score of leidenuniv.nl (44/100) is better than the results of 24.22% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.

Weekly Rank Report

DateRankChange
Nov-18-2024 N/AN/A
Nov-17-2024 5,386-29
Nov-16-2024 5,35734
Nov-15-2024 5,391-9
Nov-14-2024 5,382-27
Nov-13-2024 5,3550
Nov-12-2024 5,3550

Advertisement

leidenuniv.nl Rank History

Alexa can identify the popularity of a website as well as its competitors. It is important for website owners and bloggers to know their Alexa ranking because it shows how many visitors have viewed their web page. It gives them a clear idea of how popular their website is on the internet and the ranking of their competitors.



leidenuniv.nl whois

WHOIS is a query and response protocol that is widely used for querying databases that store the registered users or assignees of an Internet resource, such as a domain name, an IP address block, or an autonomous system, but is also used for a wider range of other information.


Domain name: leidenuniv.nl
Status: active

Reseller:
TransIP
Vondellaan 47
2332AA Leiden
Netherlands

Registrar:
team.blue nl B.V.
Vondellaan 47
2332AA Leiden
Netherlands

Abuse Contact:
abuse@nl.team.blue

DNSSEC: yes

Domain nameservers:
ns1.surfnet.nl
ns3.surfnet.nl
ns2.surfnet.nl

Creation Date: 1988-10-27

Updated Date: 2024-05-15

Record maintained by: SIDN BV

leidenuniv.nl server information

Servers Location

IP Address
132.229.13.193
Region
Zuid-Holland
City
Leiden

leidenuniv.nl desktop page speed rank

Last tested: 2016-09-04


Desktop Speed Medium
71/100

leidenuniv.nl Desktop Speed Test Quick Summary


priority - 19 Enable 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 188KiB (70% reduction).

Compressing http://www.universiteitleiden.nl/ul2ext/scripts/jquery-1.11.2.min.js could save 61.1KiB (65% reduction).
Compressing http://www.universiteitleiden.nl/ul2ext/scripts/jq…i-1.10.3.custom.min.js could save 50.4KiB (68% reduction).
Compressing http://www.universiteitleiden.nl/ul2ext/styles/screen.css could save 50KiB (81% reduction).
Compressing http://www.universiteitleiden.nl/ could save 11.9KiB (73% reduction).
Compressing http://www.universiteitleiden.nl/ul2ext/scripts/main.js could save 6.8KiB (72% reduction).
Compressing http://www.universiteitleiden.nl/ul2ext/scripts/picturefill.min.js could save 6KiB (55% reduction).
Compressing http://www.universiteitleiden.nl/ul2ext/scripts/jquery.matchHeight-min.js could save 1.8KiB (59% reduction).

priority - 9 Leverage 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:

http://www.universiteitleiden.nl/ul2ext/fonts/fontello.woff (expiration not specified)
http://www.universiteitleiden.nl/ul2ext/fonts/vestula_regular-webfont.woff (expiration not specified)
http://www.universiteitleiden.nl/ul2ext/fonts/vestula_semibold-webfont.woff (expiration not specified)
http://www.universiteitleiden.nl/ul2ext/images/home-default.jpg (expiration not specified)
http://www.universiteitleiden.nl/ul2ext/images/home-kader.png (expiration not specified)
http://www.universiteitleiden.nl/ul2ext/images/mainnavborder.png (expiration not specified)
http://www.universiteitleiden.nl/ul2ext/images/searchborder.png (expiration not specified)
http://www.universiteitleiden.nl/ul2ext/images/world-map.png (expiration not specified)
http://www.universiteitleiden.nl/ul2ext/images/zegel.png (expiration not specified)
http://www.universiteitleiden.nl/ul2ext/scripts/jquery-1.11.2.min.js (expiration not specified)
http://www.universiteitleiden.nl/ul2ext/scripts/jq…i-1.10.3.custom.min.js (expiration not specified)
http://www.universiteitleiden.nl/ul2ext/scripts/jquery.matchHeight-min.js (expiration not specified)
http://www.universiteitleiden.nl/ul2ext/scripts/main.js (expiration not specified)
http://www.universiteitleiden.nl/ul2ext/scripts/picturefill.min.js (expiration not specified)
http://www.universiteitleiden.nl/ul2ext/styles/screen.css (expiration not specified)
http://www.google-analytics.com/ga.js (2 hours)
http://www.universiteitleiden.nl/binaries/content/…ingencrisis.jpg/d50x50 (2.3 days)
http://www.universiteitleiden.nl/binaries/content/…pg/plankton.jpg/d50x50 (2.4 days)
http://www.universiteitleiden.nl/binaries/content/…67p-880-320.jpg/d50x50 (3.2 days)

priority - 8 Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 2 blocking script resources and 1 blocking CSS resources. This causes a delay in rendering your page.

None of the above-the-fold content on your page could be rendered without waiting for the following resources to load. Try to defer or asynchronously load blocking resources, or inline the critical portions of those resources directly in the HTML.

Remove render-blocking JavaScript:

http://www.universiteitleiden.nl/ul2ext/scripts/jquery-1.11.2.min.js
http://www.universiteitleiden.nl/ul2ext/scripts/picturefill.min.js

Optimize CSS Delivery of the following:

http://www.universiteitleiden.nl/ul2ext/styles/screen.css

priority - 3 Reduce server response time

In our test, your server responded in 0.46 seconds. There are many factors that can slow down your server response time. Please read our recommendations to learn how you can monitor and measure where your server is spending the most time.

priority - 1 Minify 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 11.7KiB (20% reduction).

Minifying http://www.universiteitleiden.nl/ul2ext/styles/screen.css could save 11.7KiB (20% reduction).

priority - 1 Optimize images

Properly formatting and compressing images can save many bytes of data.

Optimize the following images to reduce their size by 7.3KiB (33% reduction).

Compressing and resizing http://www.universiteitleiden.nl/ul2ext/images/zegel.png could save 1.4KiB (20% reduction).
Compressing http://www.universiteitleiden.nl/binaries/content/…pg/plankton.jpg/d50x50 could save 1.2KiB (23% reduction).
Compressing http://www.universiteitleiden.nl/ul2ext/images/home-kader.png could save 1.1KiB (84% reduction).
Compressing http://www.universiteitleiden.nl/binaries/content/…ingencrisis.jpg/d50x50 could save 920B (19% reduction).
Compressing http://www.universiteitleiden.nl/ul2ext/images/mainnavborder.png could save 910B (91% reduction).
Compressing http://www.universiteitleiden.nl/ul2ext/images/searchborder.png could save 856B (91% reduction).
Compressing http://www.universiteitleiden.nl/ul2ext/images/home-default.jpg could save 840B (74% reduction).

priority - 0 Minify 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 3.2KiB (21% reduction).

Minifying http://www.universiteitleiden.nl/ could save 3.2KiB (21% reduction).

priority - 0 Minify 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 3KiB (32% reduction).

Minifying http://www.universiteitleiden.nl/ul2ext/scripts/main.js could save 3KiB (32% reduction).

leidenuniv.nl Desktop Resources

Total Resources28
Number of Hosts4
Static Resources25
JavaScript Resources8
CSS Resources1

leidenuniv.nl Desktop Resource Breakdown

leidenuniv.nl mobile page speed rank

Last tested: 2019-12-10


Mobile Speed Bad
44/100

leidenuniv.nl Mobile Speed Test Quick Summary


priority - 52 Optimize images

Properly formatting and compressing images can save many bytes of data.

Optimize the following images to reduce their size by 504.7KiB (69% reduction).

Compressing https://www.universiteitleiden.nl/binaries/content…iegebouw.jpg/d1400xvar could save 403.2KiB (71% reduction).
Compressing https://www.universiteitleiden.nl/binaries/content…miegebouw.jpg/d480xvar could save 66.3KiB (70% reduction).
Compressing https://www.universiteitleiden.nl/binaries/content…onaal-publiekrecht.jpg could save 13.1KiB (42% reduction).
Compressing https://www.universiteitleiden.nl/binaries/content…inbergen-spotlight.jpg could save 9.3KiB (50% reduction).
Compressing and resizing https://www.universiteitleiden.nl/binaries/content…/444-transparant-2.png could save 4.3KiB (64% reduction).
Compressing https://www.universiteitleiden.nl/binaries/content…del-vaandel.jpg/d50x50 could save 3KiB (65% reduction).
Compressing https://www.universiteitleiden.nl/binaries/content…uels-istock.jpg/d50x50 could save 2.8KiB (66% reduction).
Compressing https://www.universiteitleiden.nl/binaries/content…reality-bos.jpg/d50x50 could save 2.6KiB (67% reduction).

priority - 51 Avoid landing page redirects

Your page has 3 redirects. Redirects introduce additional delays before the page can be loaded.

Avoid landing page redirects for the following chain of redirected URLs.

http://leidenuniv.nl/
https://www.leidenuniv.nl/
http://www.universiteitleiden.nl/
https://www.universiteitleiden.nl/

priority - 16 Eliminate 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.

None of the above-the-fold content on your page could be rendered without waiting for the following resources to load. Try to defer or asynchronously load blocking resources, or inline the critical portions of those resources directly in the HTML.

Optimize CSS Delivery of the following:

https://www.universiteitleiden.nl/ul2external/styles/screen.css?v=1.99.00

priority - 14 Leverage 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.universiteitleiden.nl/binaries/content…/444-transparant-2.png (expiration not specified)
https://www.universiteitleiden.nl/binaries/content…reality-bos.jpg/d50x50 (expiration not specified)
https://www.universiteitleiden.nl/binaries/content…iegebouw.jpg/d1400xvar (expiration not specified)
https://www.universiteitleiden.nl/binaries/content…miegebouw.jpg/d480xvar (expiration not specified)
https://www.universiteitleiden.nl/binaries/content…del-vaandel.jpg/d50x50 (expiration not specified)
https://www.universiteitleiden.nl/binaries/content…uels-istock.jpg/d50x50 (expiration not specified)
https://www.universiteitleiden.nl/binaries/content…ge-headers/werving.png (expiration not specified)
https://www.universiteitleiden.nl/binaries/content…inbergen-spotlight.jpg (expiration not specified)
https://www.universiteitleiden.nl/binaries/content…onaal-publiekrecht.jpg (expiration not specified)
https://www.universiteitleiden.nl/scripts/ul2external/main.js (expiration not specified)
https://www.universiteitleiden.nl/ul2common/images/world-map.png (expiration not specified)
https://www.universiteitleiden.nl/ul2common/images/zegel.png (expiration not specified)
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…4803?v=2.9.14&r=stable (20 minutes)
https://connect.facebook.net/signals/config/406354…3074?v=2.9.14&r=stable (20 minutes)
https://bat.bing.com/bat.js (30 minutes)
https://www.googleadservices.com/pagead/conversion_async.js (60 minutes)
https://www.google-analytics.com/analytics.js (2 hours)

priority - 8 Prioritize 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 45% 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 - 0 Enable 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 2.3KiB (47% reduction).

Compressing https://www.universiteitleiden.nl/scripts/ul2common/search.js?v=1.99.00 could save 708B (50% reduction).
Compressing https://www.universiteitleiden.nl/scripts/ul2.js?v=1.99.00 could save 559B (47% reduction).
Compressing https://www.universiteitleiden.nl/scripts/ul2common/ajax.js?v=1.99.00 could save 495B (50% reduction).
Compressing https://www.universiteitleiden.nl/async/spotlightc…41f7-af13-bd6c8ded140c could save 223B (48% reduction).
Compressing https://www.universiteitleiden.nl/scripts/ul2common/bgset.js?v=1.99.00 could save 187B (34% reduction).
Compressing https://www.universiteitleiden.nl/async/spotlightc…45f4-b610-7244b4974455 could save 180B (42% reduction).

priority - 0 Minify 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 775B (15% reduction).

Minifying https://www.universiteitleiden.nl/ could save 775B (15% reduction) after compression.

leidenuniv.nl Mobile Resources

Total Resources56
Number of Hosts16
Static Resources20
JavaScript Resources20
CSS Resources1

leidenuniv.nl Mobile Resource Breakdown

leidenuniv.nl mobile page usability

Last tested: 2019-12-10


Mobile Usability Good
99/100

leidenuniv.nl Mobile Usability Test Quick Summary


priority - 0 Size 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.

leidenuniv.nl similar domains

Similar domains:
www.leidenuniv.com
www.leidenuniv.net
www.leidenuniv.org
www.leidenuniv.info
www.leidenuniv.biz
www.leidenuniv.us
www.leidenuniv.mobi
www.eidenuniv.nl
www.leidenuniv.nl
www.peidenuniv.nl
www.lpeidenuniv.nl
www.pleidenuniv.nl
www.oeidenuniv.nl
www.loeidenuniv.nl
www.oleidenuniv.nl
www.keidenuniv.nl
www.lkeidenuniv.nl
www.kleidenuniv.nl
www.lidenuniv.nl
www.lwidenuniv.nl
www.lewidenuniv.nl
www.lweidenuniv.nl
www.lsidenuniv.nl
www.lesidenuniv.nl
www.lseidenuniv.nl
www.ldidenuniv.nl
www.ledidenuniv.nl
www.ldeidenuniv.nl
www.lridenuniv.nl
www.leridenuniv.nl
www.lreidenuniv.nl
www.ledenuniv.nl
www.leudenuniv.nl
www.leiudenuniv.nl
www.leuidenuniv.nl
www.lejdenuniv.nl
www.leijdenuniv.nl
www.lejidenuniv.nl
www.lekdenuniv.nl
www.leikdenuniv.nl
www.lekidenuniv.nl
www.leodenuniv.nl
www.leiodenuniv.nl
www.leoidenuniv.nl
www.leienuniv.nl
www.leixenuniv.nl
www.leidxenuniv.nl
www.leixdenuniv.nl
www.leisenuniv.nl
www.leidsenuniv.nl
www.leisdenuniv.nl
www.leieenuniv.nl
www.leideenuniv.nl
www.leiedenuniv.nl
www.leirenuniv.nl
www.leidrenuniv.nl
www.leirdenuniv.nl
www.leifenuniv.nl
www.leidfenuniv.nl
www.leifdenuniv.nl
www.leicenuniv.nl
www.leidcenuniv.nl
www.leicdenuniv.nl
www.leidnuniv.nl
www.leidwnuniv.nl
www.leidewnuniv.nl
www.leidwenuniv.nl
www.leidsnuniv.nl
www.leidesnuniv.nl
www.leiddnuniv.nl
www.leidednuniv.nl
www.leiddenuniv.nl
www.leidrnuniv.nl
www.leidernuniv.nl
www.leideuniv.nl
www.leidebuniv.nl
www.leidenbuniv.nl
www.leidebnuniv.nl
www.leidehuniv.nl
www.leidenhuniv.nl
www.leidehnuniv.nl
www.leidejuniv.nl
www.leidenjuniv.nl
www.leidejnuniv.nl
www.leidemuniv.nl
www.leidenmuniv.nl
www.leidemnuniv.nl
www.leidenniv.nl
www.leidenyniv.nl
www.leidenuyniv.nl
www.leidenyuniv.nl
www.leidenhniv.nl
www.leidenuhniv.nl
www.leidenjniv.nl
www.leidenujniv.nl
www.leideniniv.nl
www.leidenuiniv.nl
www.leideniuniv.nl
www.leidenuiv.nl
www.leidenubiv.nl
www.leidenunbiv.nl
www.leidenubniv.nl
www.leidenuhiv.nl
www.leidenunhiv.nl
www.leidenujiv.nl
www.leidenunjiv.nl
www.leidenumiv.nl
www.leidenunmiv.nl
www.leidenumniv.nl
www.leidenunv.nl
www.leidenunuv.nl
www.leidenuniuv.nl
www.leidenunuiv.nl
www.leidenunjv.nl
www.leidenunijv.nl
www.leidenunkv.nl
www.leidenunikv.nl
www.leidenunkiv.nl
www.leidenunov.nl
www.leidenuniov.nl
www.leidenunoiv.nl
www.leidenuni.nl
www.leidenunic.nl
www.leidenunivc.nl
www.leidenunicv.nl
www.leidenunif.nl
www.leidenunivf.nl
www.leidenunifv.nl
www.leidenunig.nl
www.leidenunivg.nl
www.leidenunigv.nl
www.leidenunib.nl
www.leidenunivb.nl
www.leidenunibv.nl

leidenuniv.nl Ping

Ping is a networking utility tool to test if a particular host is reachable. It is a diagnostic that checks reachability of a host on an Internet Protocol (IP) network. In a computer network, a ping test is a way of sending messages from one host to another. Aside from checking if the host is connected to a network, ping also gives indicators of the reliability and general speed of the connection.


leidenuniv.nl TRACEROUTE

Traceroute is a network diagnostic tool used to track the pathway taken by a packet on an IP network from source to destination. Traceroute also records the time taken for each hop the packet makes during its route to the destination. Traceroute uses ICMP (Internet Control Message Protocol) echo packets with variable time to live values. The response time of each hop is calculated. To guarantee accuracy, each hop is queried multiple times (usually three times) to better measure the response of that particular hop.