SURF.NL SURF is de ict-coöperatie van onderwijs en onderzoek | SURF.nl

surf.nl Website Information

Daily Unique Visits: 54,756

Daily Page Views: 328,536

Income Per Day: $657

Estimated Value: $473,040

This website is located in Netherlands and is using following IP address 192.87.108.15. See the complete list of popular websites hosted in Netherlands.

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

Website surf.nl is using the following name servers:

  • ns1.zurich.surf.net
  • ns2.surfnet.nl
  • ns1.surfnet.nl
  • ns3.surfnet.nl

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

The highest website surf.nl position in Alexa rank database was 14183 and the lowest rank position was 999637. Current position of surf.nl in Alexa rank database is 26193.

Desktop speed score of surf.nl (74/100) is better than the results of 57.94% of other sites and shows that the page desktop performance can be improved.

Mobile usability score of surf.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 surf.nl (51/100) is better than the results of 35.73% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.

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surf.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.


surf.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: surf.nl
Status: active

Registrar:
SURF B.V.
Moreelsepark 48
3511EP Utrecht
Netherlands

Abuse Contact:
+31.887873000
cert@surfcert.nl

Creation Date: 1997-03-03

Updated Date: 2018-08-29

DNSSEC: yes

Domain nameservers:
ns2.surfnet.nl
ns1.surfnet.nl
ns3.surfnet.nl
ns1.zurich.surf.net

Record maintained by: NL Domain Registry

Copyright notice
No part of this publication may be reproduced, published, stored in a
retrieval system, or transmitted, in any form or by any means,
electronic, mechanical, recording, or otherwise, without prior
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).

surf.nl server information

Servers Location

surf.nl desktop page speed rank

Last tested: 2017-05-22


Desktop Speed Medium
74/100

surf.nl Desktop Speed Test Quick Summary


priority - 17Leverage 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://webstats.surf.nl/piwik.js (expiration not specified)
https://www.surf.nl/fonts/icomoon.ttf (expiration not specified)
https://www.surf.nl/fonts/mark_simonson_-_proxima_…_bold-webfont-two.woff (expiration not specified)
https://www.surf.nl/fonts/varelaround-regular-webfont-two.woff (expiration not specified)
https://www.surf.nl/js/assets/disablerightclick.js (expiration not specified)
https://www.surf.nl/js/assets/dropmenuitem.js (expiration not specified)
https://www.surf.nl/js/assets/equalheight.js (expiration not specified)
https://www.surf.nl/js/assets/focusoutline.js (expiration not specified)
https://www.surf.nl/js/assets/jumpto.js (expiration not specified)
https://www.surf.nl/js/assets/placeholder.js (expiration not specified)
https://www.surf.nl/js/assets/searchautocomplete.js (expiration not specified)
https://www.surf.nl/js/assets/searchnavigation.js (expiration not specified)
https://www.surf.nl/js/assets/select/submitonselect.js (expiration not specified)
https://www.surf.nl/js/assets/sessionaccordion.js (expiration not specified)
https://www.surf.nl/js/assets/socialmedia.js (expiration not specified)
https://www.surf.nl/js/components/datepicker.js (expiration not specified)
https://www.surf.nl/js/components/facetnavigation.js (expiration not specified)
https://www.surf.nl/js/components/googlemapcanvas.js (expiration not specified)
https://www.surf.nl/js/components/jquery.ui.datepicker-nl.js (expiration not specified)
https://www.surf.nl/js/components/piwik-optout.js (expiration not specified)
https://www.surf.nl/js/components/title-carousel.js (expiration not specified)
https://www.surf.nl/js/lib/backbone.js (expiration not specified)
https://www.surf.nl/js/lib/enquire.min.js (expiration not specified)
https://www.surf.nl/js/lib/inlinebackgrounds.js (expiration not specified)
https://www.surf.nl/js/lib/jquery-ui-1.10.2.custom.min.js (expiration not specified)
https://www.surf.nl/js/lib/jquery.cookie.js (expiration not specified)
https://www.surf.nl/js/lib/jquery.cookiebar.min.js (expiration not specified)
https://www.surf.nl/js/lib/jquery.js (expiration not specified)
https://www.surf.nl/js/lib/lodash.js (expiration not specified)
https://www.surf.nl/js/lib/modernizr.js (expiration not specified)
https://www.surf.nl/js/lib/transit.js (expiration not specified)
https://www.surf.nl/js/main_1_06_03.js (expiration not specified)
https://www.surf.nl/js/spambot/jsmailrender.js (expiration not specified)
https://maps.googleapis.com/maps/api/js?v=3.exp&sensor=false (30 minutes)

priority - 9Avoid 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://surf.nl/
https://surf.nl/
https://www.surf.nl/

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

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

Remove render-blocking JavaScript:

https://www.surf.nl/js/lib/jquery.js

priority - 4Enable 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 38.1KiB (65% reduction).

Compressing https://webstats.surf.nl/piwik.js could save 37.4KiB (65% reduction).
Compressing https://www.surf.nl/menu.json?_hn:type=resource&_h…r19&_hn:rid=responsive could save 758B (62% reduction).

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 2.2KiB (28% reduction).

Minifying https://www.surf.nl/js/main_1_06_03.js could save 1.1KiB (24% reduction) after compression.
Minifying https://www.surf.nl/js/lib/jquery.cookie.js could save 585B (44% reduction) after compression.
Minifying https://www.surf.nl/js/components/title-carousel.js could save 546B (28% 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 3KiB (11% reduction).

Minifying https://www.surf.nl/css/all.css could save 3KiB (11% 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 1.3KiB (19% reduction).

Minifying https://www.surf.nl/ could save 1.3KiB (19% reduction) after compression.

priority - 0Optimize images

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

Optimize the following images to reduce their size by 992B (72% reduction).

Compressing https://www.surf.nl/images/ico-search.png could save 992B (72% reduction).

surf.nl Desktop Resource Breakdown

Total Resources61
Number of Hosts5
Static Resources53
JavaScript Resources32
CSS Resources2

surf.nl mobile page speed rank

Last tested: 2017-05-22


Mobile Speed Bad
51/100

surf.nl Mobile Speed Test Quick Summary


priority - 40Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 5 blocking script resources and 2 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

https://www.surf.nl/js/lib/jquery.js
https://www.surf.nl/js/lib/jquery-ui-1.10.2.custom.min.js
https://www.surf.nl/js/lib/modernizr.js
https://www.surf.nl/js/lib/enquire.min.js
https://www.surf.nl/js/lib/inlinebackgrounds.js

Optimize CSS Delivery of the following:

https://www.surf.nl/js/lib/jquery.cookiebar.min.css
https://www.surf.nl/css/all.css

priority - 34Avoid 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://surf.nl/
https://surf.nl/
https://www.surf.nl/

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:

https://webstats.surf.nl/piwik.js (expiration not specified)
https://www.surf.nl/fonts/icomoon.ttf (expiration not specified)
https://www.surf.nl/fonts/mark_simonson_-_proxima_…_bold-webfont-two.woff (expiration not specified)
https://www.surf.nl/fonts/varelaround-regular-webfont-two.woff (expiration not specified)
https://www.surf.nl/js/assets/disablerightclick.js (expiration not specified)
https://www.surf.nl/js/assets/dropmenuitem.js (expiration not specified)
https://www.surf.nl/js/assets/equalheight.js (expiration not specified)
https://www.surf.nl/js/assets/focusoutline.js (expiration not specified)
https://www.surf.nl/js/assets/jumpto.js (expiration not specified)
https://www.surf.nl/js/assets/placeholder.js (expiration not specified)
https://www.surf.nl/js/assets/searchautocomplete.js (expiration not specified)
https://www.surf.nl/js/assets/searchnavigation.js (expiration not specified)
https://www.surf.nl/js/assets/select/submitonselect.js (expiration not specified)
https://www.surf.nl/js/assets/sessionaccordion.js (expiration not specified)
https://www.surf.nl/js/assets/socialmedia.js (expiration not specified)
https://www.surf.nl/js/components/datepicker.js (expiration not specified)
https://www.surf.nl/js/components/facetnavigation.js (expiration not specified)
https://www.surf.nl/js/components/googlemapcanvas.js (expiration not specified)
https://www.surf.nl/js/components/jquery.ui.datepicker-nl.js (expiration not specified)
https://www.surf.nl/js/components/piwik-optout.js (expiration not specified)
https://www.surf.nl/js/components/title-carousel.js (expiration not specified)
https://www.surf.nl/js/lib/backbone.js (expiration not specified)
https://www.surf.nl/js/lib/enquire.min.js (expiration not specified)
https://www.surf.nl/js/lib/inlinebackgrounds.js (expiration not specified)
https://www.surf.nl/js/lib/jquery-ui-1.10.2.custom.min.js (expiration not specified)
https://www.surf.nl/js/lib/jquery.cookie.js (expiration not specified)
https://www.surf.nl/js/lib/jquery.cookiebar.min.js (expiration not specified)
https://www.surf.nl/js/lib/jquery.js (expiration not specified)
https://www.surf.nl/js/lib/lodash.js (expiration not specified)
https://www.surf.nl/js/lib/modernizr.js (expiration not specified)
https://www.surf.nl/js/lib/transit.js (expiration not specified)
https://www.surf.nl/js/main_1_06_03.js (expiration not specified)
https://www.surf.nl/js/spambot/jsmailrender.js (expiration not specified)
https://maps.googleapis.com/maps/api/js?v=3.exp&sensor=false (30 minutes)

priority - 4Enable 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 38.1KiB (65% reduction).

Compressing https://webstats.surf.nl/piwik.js could save 37.4KiB (65% reduction).
Compressing https://www.surf.nl/menu.json?_hn:type=resource&_h…r19&_hn:rid=responsive could save 758B (62% reduction).

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 2.2KiB (28% reduction).

Minifying https://www.surf.nl/js/main_1_06_03.js could save 1.1KiB (24% reduction) after compression.
Minifying https://www.surf.nl/js/lib/jquery.cookie.js could save 585B (44% reduction) after compression.
Minifying https://www.surf.nl/js/components/title-carousel.js could save 546B (28% 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 3KiB (11% reduction).

Minifying https://www.surf.nl/css/all.css could save 3KiB (11% 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 1.3KiB (19% reduction).

Minifying https://www.surf.nl/ could save 1.3KiB (19% reduction) after compression.

priority - 0Optimize images

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

Optimize the following images to reduce their size by 992B (72% reduction).

Compressing https://www.surf.nl/images/ico-search.png could save 992B (72% reduction).

surf.nl Mobile Resource Breakdown

Total Resources55
Number of Hosts5
Static Resources47
JavaScript Resources32
CSS Resources2

surf.nl mobile page usability

Last tested: 2017-05-22


Mobile Usability Good
99/100

surf.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="" class="cb-enable">Ik vind het prima</a> is close to 2 other tap targets.

The tap target <a href="" class="cb-disable">Niet akkoord</a> is close to 1 other tap targets.

The tap target <a href="/privacy-en-cookies.html" class="cb-policy">Lees meer over…s cookiebeleid</a> is close to 1 other tap targets.

The tap target <a href="/innovatieprojecten">Innovatieprojecten</a> is close to 1 other tap targets.

The tap target <a href="/innovatieproj…l-toetsen.html" class="">Digitaal toetsen</a> and 3 others are close to other tap targets.

surf.nl HTML validation

Errors

Attribute “static-url” not allowed on element “html” at this point.

Line: 6 Column: 23 - 68
"...E 8]><!--> <html xml:lang="nl" lang="nl" static-url="/"> <!--<..."

Element “head” is missing a required instance of child element “title”.

Line: 24 Column: 3 - 9
"...aaa"/> </head> <b..."

An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.

Line: 218 Column: 41 - 114
"... <img src="/binaries/content/gallery/surf/achtergrond/homepage-samen.jpg"/> ..." Line: 232 Column: 61 - 134
"... <img src="/binaries/content/gallery/surf/achtergrond/onderzoek-home.jpg"/> ..." Line: 245 Column: 61 - 150
"... <img src="/binaries/content/gallery/surf/achtergrond/achtergrond-blijf-op-de-hoogte.jpg"/> ..." Line: 258 Column: 61 - 170
"... <img src="/binaries/content/gallery/subsites-evenementen/netwerkdag/netwerkdag-foto-2-netwerkapparatuur.jpg"/> ..." Line: 271 Column: 61 - 154
"... <img src="/binaries/content/gallery/surf/achtergrond/werkmaatschappij-surfsara-home-web.jpg"/> ..." Line: 380 Column: 6 - 108
"... <p><img src="/binaries/content/gallery/subsites-evenementen/super-d/2017/vd_201712172482voorhomepage.jpg"></p> ..."

End tag “h3” seen, but there were open elements.

Line: 302 Column: 242 - 246
"...ness as...</h3></a> ..."

Unclosed element “a”.

Line: 302 Column: 65 - 181
"... <h3><a href="/agenda/2018/02/surf-security--en-privacyconferentie-%E2%80%98crisis-business-as-usual%E2%80%99/index.html">SURF S..."

No “a” element in scope but a “a” end tag seen.

Line: 302 Column: 247 - 250
"...as...</h3></a> ..."

Stray end tag “h3”.

Line: 304 Column: 57 - 61
"... </h3> ..."

End tag “li” seen, but there were open elements.

Line: 305 Column: 53 - 57
"... </li> ..."

Unclosed element “div”.

Line: 301 Column: 57 - 79
"... <div class="container"> ..."

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surf.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.


surf.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.