rug.nl Website Information
Daily Unique Visits: 784,689
Daily Page Views: 6,277,512
Income Per Day: $6,278
Estimated Value: $6,780,240
This website is located in Netherlands and is using following IP address 129.125.2.51. See the complete list of popular websites hosted in Netherlands.
rug.nl is registered under .NL top-level domain. Please check other sites in .NL zone.
Website rug.nl is using the following name servers:
- ns2.surfnet.nl
- dns4.rug.nl
- dns3.rug.nl
- ns1.surfnet.nl
- dns2.rug.nl
- dns1.rug.nl
and is probably hosted by SURFnet bv. See the full list of other websites hosted by SURFnet bv.
The highest website rug.nl position in Alexa rank database was 1871 and the lowest rank position was 2096. Current position of rug.nl in Alexa rank database is 1942.
Desktop speed score of rug.nl (33/100) is better than the results of 10.11% of other sites and shows that the page desktop performance can be improved.
Mobile usability score of rug.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 rug.nl (35/100) is better than the results of 13.85% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.
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rug.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.
rug.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: rug.nl
Status: active
Registrar:
Rijksuniversiteit Groningen
Nettelbosje 1
9747AJ Groningen
Netherlands
Abuse Contact:
DNSSEC: no
Domain nameservers:
dns2.rug.nl 129.125.50.2
dns2.rug.nl 2001:610:1a08:13:129:125:50:2
dns3.rug.nl 129.125.4.3
dns3.rug.nl 2001:610:1a08:14:129:125:4:3
dns1.rug.nl 129.125.4.1
dns1.rug.nl 2001:610:1a08:14:129:125:4:1
ns2.surfnet.nl
ns1.surfnet.nl
Creation Date: 1988-06-02
Updated Date: 2023-01-13
Record maintained by: SIDN BV
Status: active
Registrar:
Rijksuniversiteit Groningen
Nettelbosje 1
9747AJ Groningen
Netherlands
Abuse Contact:
DNSSEC: no
Domain nameservers:
dns2.rug.nl 129.125.50.2
dns2.rug.nl 2001:610:1a08:13:129:125:50:2
dns3.rug.nl 129.125.4.3
dns3.rug.nl 2001:610:1a08:14:129:125:4:3
dns1.rug.nl 129.125.4.1
dns1.rug.nl 2001:610:1a08:14:129:125:4:1
ns2.surfnet.nl
ns1.surfnet.nl
Creation Date: 1988-06-02
Updated Date: 2023-01-13
Record maintained by: SIDN BV
rug.nl server information
Servers Location
rug.nl desktop page speed rank
Last tested: 2017-05-23
Desktop Speed
Bad
33/100
rug.nl Desktop Speed Test Quick Summary
priority - 103Optimize images
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priority - 67Enable compression
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priority - 25Leverage 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.rug.nl/_definition/shared/css/fotorama.css?version=2017-03-31 (60 minutes)
http://www.rug.nl/_definition/shared/css/jquery-sm…css?version=2017-03-31 (60 minutes)
http://www.rug.nl/_definition/shared/css/styles.css?version=2017-03-31 (60 minutes)
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http://www.rug.nl/_definition/shared/js/jquery.dia….js?version=2017-03-31 (60 minutes)
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http://www.rug.nl/about-us/images/Discoverables/new-discageacayear04.jpg (60 minutes)
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http://www.rug.nl/news-and-events/people-perspecti…ts-in-focus/LSteg2.png (60 minutes)
http://www.rug.nl/news/2017/05/results-of-universi…/associative-image.jpg (60 minutes)
http://www.google-analytics.com/analytics.js (2 hours)
priority - 12Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 16 blocking script resources and 3 blocking CSS resources. This causes a delay in rendering your page.
Remove render-blocking JavaScript:
http://www.rug.nl/_definition/shared/js/jquery.js?version=2017-03-31
http://www.rug.nl/_definition/shared/js/jquery-ui.js?version=2017-03-31
http://www.rug.nl/_definition/shared/js/js-cookie.js?version=2017-03-31
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http://www.rug.nl/_definition/shared/js/messages!js?version=2017-03-31
http://www.rug.nl/_definition/shared/js/formfunctions.js?version=2017-03-31
http://www.rug.nl/_definition/shared/js/imagesloaded.js?version=2017-03-31
http://www.rug.nl/_definition/shared/js/jquery.mob….js?version=2017-03-31
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http://www.rug.nl/_definition/shared/js/fotorama.js?version=2017-03-31
http://www.rug.nl/_definition/shared/js/interface.….js?version=2017-03-31
http://www.rug.nl/_definition/shared/js/cross-frame.js?version=2017-03-31
http://www.rug.nl/_definition/shared/js/jquery-ui.js?version=2017-03-31
http://www.rug.nl/_definition/shared/js/js-cookie.js?version=2017-03-31
http://www.rug.nl/_definition/shared/js/md5.js?version=2017-03-31
http://www.rug.nl/_definition/shared/js/rug-cms-al….js?version=2017-03-31
http://www.rug.nl/_definition/shared/js/rug-shared.js?version=2017-03-31
http://www.rug.nl/_definition/shared/js/jquery.dia….js?version=2017-03-31
http://www.rug.nl/_definition/shared/js/jquery.dia….js?version=2017-03-31
http://www.rug.nl/_definition/shared/js/messages!js?version=2017-03-31
http://www.rug.nl/_definition/shared/js/formfunctions.js?version=2017-03-31
http://www.rug.nl/_definition/shared/js/imagesloaded.js?version=2017-03-31
http://www.rug.nl/_definition/shared/js/jquery.mob….js?version=2017-03-31
http://www.rug.nl/_definition/shared/js/gsa/ss.js?version=2017-03-31
http://www.rug.nl/_definition/shared/js/fotorama.js?version=2017-03-31
http://www.rug.nl/_definition/shared/js/interface.….js?version=2017-03-31
http://www.rug.nl/_definition/shared/js/cross-frame.js?version=2017-03-31
Optimize CSS Delivery of the following:
http://www.rug.nl/_definition/shared/css/jquery-sm…css?version=2017-03-31
http://www.rug.nl/_definition/shared/css/styles.css?version=2017-03-31
http://www.rug.nl/_definition/shared/css/fotorama.css?version=2017-03-31
http://www.rug.nl/_definition/shared/css/styles.css?version=2017-03-31
http://www.rug.nl/_definition/shared/css/fotorama.css?version=2017-03-31
priority - 10Minify 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 97.7KiB (30% reduction).
Minifying http://www.rug.nl/_definition/shared/js/fotorama.js?version=2017-03-31 could save 34.1KiB (34% reduction).
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Minifying http://www.rug.nl/_definition/shared/js/interface.….js?version=2017-03-31 could save 22.4KiB (24% reduction).
Minifying http://www.rug.nl/_definition/shared/js/md5.js?version=2017-03-31 could save 5.1KiB (43% reduction).
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rug.nl Desktop Resource Breakdown
| Total Resources | 57 |
| Number of Hosts | 3 |
| Static Resources | 51 |
| JavaScript Resources | 17 |
| CSS Resources | 3 |
rug.nl mobile page speed rank
Last tested: 2017-05-23
Mobile Speed
Bad
35/100
rug.nl Mobile Speed Test Quick Summary
priority - 67Enable 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 655.1KiB (73% reduction).
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Compressing http://www.rug.nl/_definition/shared/js/gsa/ss.js?version=2017-03-31 could save 64.1KiB (70% reduction).
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Compressing http://www.rug.nl/ could save 31.4KiB (79% reduction).
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priority - 48Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 16 blocking script resources and 3 blocking CSS resources. This causes a delay in rendering your page.
Remove render-blocking JavaScript:
http://www.rug.nl/_definition/shared/js/jquery.js?version=2017-03-31
http://www.rug.nl/_definition/shared/js/jquery-ui.js?version=2017-03-31
http://www.rug.nl/_definition/shared/js/js-cookie.js?version=2017-03-31
http://www.rug.nl/_definition/shared/js/md5.js?version=2017-03-31
http://www.rug.nl/_definition/shared/js/rug-cms-al….js?version=2017-03-31
http://www.rug.nl/_definition/shared/js/rug-shared.js?version=2017-03-31
http://www.rug.nl/_definition/shared/js/jquery.dia….js?version=2017-03-31
http://www.rug.nl/_definition/shared/js/jquery.dia….js?version=2017-03-31
http://www.rug.nl/_definition/shared/js/messages!js?version=2017-03-31
http://www.rug.nl/_definition/shared/js/formfunctions.js?version=2017-03-31
http://www.rug.nl/_definition/shared/js/imagesloaded.js?version=2017-03-31
http://www.rug.nl/_definition/shared/js/jquery.mob….js?version=2017-03-31
http://www.rug.nl/_definition/shared/js/gsa/ss.js?version=2017-03-31
http://www.rug.nl/_definition/shared/js/fotorama.js?version=2017-03-31
http://www.rug.nl/_definition/shared/js/interface.….js?version=2017-03-31
http://www.rug.nl/_definition/shared/js/cross-frame.js?version=2017-03-31
http://www.rug.nl/_definition/shared/js/jquery-ui.js?version=2017-03-31
http://www.rug.nl/_definition/shared/js/js-cookie.js?version=2017-03-31
http://www.rug.nl/_definition/shared/js/md5.js?version=2017-03-31
http://www.rug.nl/_definition/shared/js/rug-cms-al….js?version=2017-03-31
http://www.rug.nl/_definition/shared/js/rug-shared.js?version=2017-03-31
http://www.rug.nl/_definition/shared/js/jquery.dia….js?version=2017-03-31
http://www.rug.nl/_definition/shared/js/jquery.dia….js?version=2017-03-31
http://www.rug.nl/_definition/shared/js/messages!js?version=2017-03-31
http://www.rug.nl/_definition/shared/js/formfunctions.js?version=2017-03-31
http://www.rug.nl/_definition/shared/js/imagesloaded.js?version=2017-03-31
http://www.rug.nl/_definition/shared/js/jquery.mob….js?version=2017-03-31
http://www.rug.nl/_definition/shared/js/gsa/ss.js?version=2017-03-31
http://www.rug.nl/_definition/shared/js/fotorama.js?version=2017-03-31
http://www.rug.nl/_definition/shared/js/interface.….js?version=2017-03-31
http://www.rug.nl/_definition/shared/js/cross-frame.js?version=2017-03-31
Optimize CSS Delivery of the following:
http://www.rug.nl/_definition/shared/css/jquery-sm…css?version=2017-03-31
http://www.rug.nl/_definition/shared/css/styles.css?version=2017-03-31
http://www.rug.nl/_definition/shared/css/fotorama.css?version=2017-03-31
http://www.rug.nl/_definition/shared/css/styles.css?version=2017-03-31
http://www.rug.nl/_definition/shared/css/fotorama.css?version=2017-03-31
priority - 41Optimize images
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 398.2KiB (63% reduction).
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priority - 37Leverage 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.rug.nl/_definition/shared/css/fotorama.css?version=2017-03-31 (60 minutes)
http://www.rug.nl/_definition/shared/css/jquery-sm…css?version=2017-03-31 (60 minutes)
http://www.rug.nl/_definition/shared/css/styles.css?version=2017-03-31 (60 minutes)
http://www.rug.nl/_definition/shared/fonts/icons.woff (60 minutes)
http://www.rug.nl/_definition/shared/images/bg-blue-box.gif (60 minutes)
http://www.rug.nl/_definition/shared/images/bg__footer-lines.png (60 minutes)
http://www.rug.nl/_definition/shared/images/bg__footer.png (60 minutes)
http://www.rug.nl/_definition/shared/images/bg__lines.gif (60 minutes)
http://www.rug.nl/_definition/shared/images/bg__page--left.gif (60 minutes)
http://www.rug.nl/_definition/shared/images/bg__page.png (60 minutes)
http://www.rug.nl/_definition/shared/images/divider-dot.gif (60 minutes)
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http://www.rug.nl/_definition/shared/images/logo--nl.png (60 minutes)
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http://www.rug.nl/_definition/shared/images/separators.gif (60 minutes)
http://www.rug.nl/_definition/shared/images/sprite.png (60 minutes)
http://www.rug.nl/_definition/shared/js/cross-frame.js?version=2017-03-31 (60 minutes)
http://www.rug.nl/_definition/shared/js/formfunctions.js?version=2017-03-31 (60 minutes)
http://www.rug.nl/_definition/shared/js/fotorama.js?version=2017-03-31 (60 minutes)
http://www.rug.nl/_definition/shared/js/gsa/ss.js?version=2017-03-31 (60 minutes)
http://www.rug.nl/_definition/shared/js/imagesloaded.js?version=2017-03-31 (60 minutes)
http://www.rug.nl/_definition/shared/js/interface.….js?version=2017-03-31 (60 minutes)
http://www.rug.nl/_definition/shared/js/jquery-ui.js?version=2017-03-31 (60 minutes)
http://www.rug.nl/_definition/shared/js/jquery.dia….js?version=2017-03-31 (60 minutes)
http://www.rug.nl/_definition/shared/js/jquery.dia….js?version=2017-03-31 (60 minutes)
http://www.rug.nl/_definition/shared/js/jquery.js?version=2017-03-31 (60 minutes)
http://www.rug.nl/_definition/shared/js/jquery.mob….js?version=2017-03-31 (60 minutes)
http://www.rug.nl/_definition/shared/js/js-cookie.js?version=2017-03-31 (60 minutes)
http://www.rug.nl/_definition/shared/js/md5.js?version=2017-03-31 (60 minutes)
http://www.rug.nl/_definition/shared/js/rug-cms-al….js?version=2017-03-31 (60 minutes)
http://www.rug.nl/_definition/shared/js/rug-shared.js?version=2017-03-31 (60 minutes)
http://www.rug.nl/about-us/images/Discoverables/new-discageacayear04.jpg (60 minutes)
http://www.rug.nl/about-us/images/Discoverables/new-disclab05.jpg (60 minutes)
http://www.rug.nl/about-us/images/Discoverables/new-discpeople02.jpg (60 minutes)
http://www.rug.nl/about-us/images/Discoverables/new-discstudenten15.jpg (60 minutes)
http://www.rug.nl/about-us/work-with-us/that-is-wh…Pablo-Valdivia-web.jpg (60 minutes)
http://www.rug.nl/about-us/work-with-us/that-is-wh…alen-web-interview.jpg (60 minutes)
http://www.rug.nl/about-us/work-with-us/that-is-wh…terviews/choi3-web.jpg (60 minutes)
http://www.rug.nl/about-us/work-with-us/that-is-wh…ederik-roest-small.jpg (60 minutes)
http://www.rug.nl/about-us/work-with-us/that-is-wh…anny-janssen-small.jpg (60 minutes)
http://www.rug.nl/about-us/work-with-us/that-is-wh…-adriaenssen-small.jpg (60 minutes)
http://www.rug.nl/about-us/work-with-us/that-is-wh…-halbertsma-slider.jpg (60 minutes)
http://www.rug.nl/cmb/images/verwerken.jpg (60 minutes)
http://www.rug.nl/images/banners/Banner-Poppema-new19-03.jpg (60 minutes)
http://www.rug.nl/images/banners/banner-yantai.jpg (60 minutes)
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http://www.rug.nl/news-and-events/news/archief2017…en/brouwerunifocus.png (60 minutes)
http://www.rug.nl/news-and-events/people-perspecti…ts-in-focus/LSteg2.png (60 minutes)
http://www.rug.nl/news/2017/05/results-of-universi…/associative-image.jpg (60 minutes)
http://www.google-analytics.com/analytics.js (2 hours)
http://www.rug.nl/_definition/shared/css/jquery-sm…css?version=2017-03-31 (60 minutes)
http://www.rug.nl/_definition/shared/css/styles.css?version=2017-03-31 (60 minutes)
http://www.rug.nl/_definition/shared/fonts/icons.woff (60 minutes)
http://www.rug.nl/_definition/shared/images/bg-blue-box.gif (60 minutes)
http://www.rug.nl/_definition/shared/images/bg__footer-lines.png (60 minutes)
http://www.rug.nl/_definition/shared/images/bg__footer.png (60 minutes)
http://www.rug.nl/_definition/shared/images/bg__lines.gif (60 minutes)
http://www.rug.nl/_definition/shared/images/bg__page--left.gif (60 minutes)
http://www.rug.nl/_definition/shared/images/bg__page.png (60 minutes)
http://www.rug.nl/_definition/shared/images/divider-dot.gif (60 minutes)
http://www.rug.nl/_definition/shared/images/divider-footer.gif (60 minutes)
http://www.rug.nl/_definition/shared/images/logo--nl.png (60 minutes)
http://www.rug.nl/_definition/shared/images/news-placeholder.png (60 minutes)
http://www.rug.nl/_definition/shared/images/separators.gif (60 minutes)
http://www.rug.nl/_definition/shared/images/sprite.png (60 minutes)
http://www.rug.nl/_definition/shared/js/cross-frame.js?version=2017-03-31 (60 minutes)
http://www.rug.nl/_definition/shared/js/formfunctions.js?version=2017-03-31 (60 minutes)
http://www.rug.nl/_definition/shared/js/fotorama.js?version=2017-03-31 (60 minutes)
http://www.rug.nl/_definition/shared/js/gsa/ss.js?version=2017-03-31 (60 minutes)
http://www.rug.nl/_definition/shared/js/imagesloaded.js?version=2017-03-31 (60 minutes)
http://www.rug.nl/_definition/shared/js/interface.….js?version=2017-03-31 (60 minutes)
http://www.rug.nl/_definition/shared/js/jquery-ui.js?version=2017-03-31 (60 minutes)
http://www.rug.nl/_definition/shared/js/jquery.dia….js?version=2017-03-31 (60 minutes)
http://www.rug.nl/_definition/shared/js/jquery.dia….js?version=2017-03-31 (60 minutes)
http://www.rug.nl/_definition/shared/js/jquery.js?version=2017-03-31 (60 minutes)
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priority - 10Minify 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 97.7KiB (30% reduction).
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rug.nl Mobile Resource Breakdown
| Total Resources | 56 |
| Number of Hosts | 3 |
| Static Resources | 50 |
| JavaScript Resources | 17 |
| CSS Resources | 3 |
rug.nl mobile page usability
Last tested: 2017-05-23
Mobile Usability
Good
99/100
rug.nl 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
<a href="/" class="navigation--ma…on is-selected">Home</a> is close to 1 other tap targets.The tap target
<a href="#" class="slider__prev">Vorige slide</a> and 1 others are close to other tap targets.The tap target
<a href="http://twitter…/univgroningen" class="icon-sprite--c…ection_twitter">twitter</a> and 6 others are close to other tap targets.rug.nl HTML validation
Errors
Using the “meta” element to specify the document-wide default language is obsolete. Consider specifying the language on the root element instead.
Line: 3 Column: 1 - 49
"..."ROBOTS"> <meta content="nl" http-equiv="Content-Language"> <titl..."
"..."ROBOTS"> <meta content="nl" http-equiv="Content-Language"> <titl..."
A document must not include both a “meta” element with an “http-equiv” attribute whose value is “content-type”, and a “meta” element with a “charset” attribute.
Line: 8 Column: 1 - 22
"...versity"> <meta charset="utf-8"> <meta..."
"...versity"> <meta charset="utf-8"> <meta..."
Element “input” is missing required attribute “aria-expanded”.
Line: 89 Column: 118 - 294
"...en</label><input placeholder="Zoeken..." id="searchtext" type="text" accesskey="4" autocomplete="off" role="combobox" aria-haspopup="false" name="q" class="rug-site-search__input q text"><butto..."
"...en</label><input placeholder="Zoeken..." id="searchtext" type="text" accesskey="4" autocomplete="off" role="combobox" aria-haspopup="false" name="q" class="rug-site-search__input q text"><butto..."
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rug.nl 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.
rug.nl 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.