surfnet.nl Website Information
Daily Unique Visits: 22,000
Daily Page Views: 132,000
Income Per Day: $264
Estimated Value: $190,080
This website is located in Netherlands and is using following IP address 145.100.190.243. See the complete list of popular websites hosted in Netherlands.
surfnet.nl is registered under .NL top-level domain. Please check other sites in .NL zone.
Website surfnet.nl is using the following name servers:
- ns3.surfnet.nl
- ns0.ja.net
- ns2.surfnet.nl
- ns1.zurich.surf.net
- ns1.surfnet.nl
and is probably hosted by SURFnet bv. See the full list of other websites hosted by SURFnet bv.
The highest website surfnet.nl position in Alexa rank database was 37899 and the lowest rank position was 996353. Current position of surfnet.nl in Alexa rank database is 65191.
Desktop speed score of surfnet.nl (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 surfnet.nl (100/100) is better than the results of 100% of other sites and means that the page is mobile-friendly.
Mobile speed score of surfnet.nl (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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surfnet.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.
surfnet.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: surfnet.nl
Status: active
Registrar:
SURF B.V.
Moreelsepark 48
3511EP Utrecht
Netherlands
Abuse Contact:
+31.887873000
cert@surfcert.nl
Creation Date: 1987-03-31
Updated Date: 2018-08-29
DNSSEC: yes
Domain nameservers:
ns3.surfnet.nl 195.169.124.71
ns3.surfnet.nl 2001:610:0:800c:195:169:124:71
ns1.surfnet.nl 192.87.106.101
ns1.surfnet.nl 2001:610:1:800a:192:87:106:101
ns2.surfnet.nl 192.87.36.2
ns2.surfnet.nl 2001:610:3:200a:192:87:36:2
ns0.ja.net
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).
Status: active
Registrar:
SURF B.V.
Moreelsepark 48
3511EP Utrecht
Netherlands
Abuse Contact:
+31.887873000
cert@surfcert.nl
Creation Date: 1987-03-31
Updated Date: 2018-08-29
DNSSEC: yes
Domain nameservers:
ns3.surfnet.nl 195.169.124.71
ns3.surfnet.nl 2001:610:0:800c:195:169:124:71
ns1.surfnet.nl 192.87.106.101
ns1.surfnet.nl 2001:610:1:800a:192:87:106:101
ns2.surfnet.nl 192.87.36.2
ns2.surfnet.nl 2001:610:3:200a:192:87:36:2
ns0.ja.net
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).
surfnet.nl server information
Servers Location
surfnet.nl desktop page speed rank
Last tested: 2019-01-25
Desktop Speed
Medium
70/100
surfnet.nl 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://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/setMsie11GridColumnPositions.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/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/sticky-header.js (expiration not specified)
https://www.surf.nl/js/components/title-carousel.js (expiration not specified)
https://www.surf.nl/js/components/toggle-thirdpartycookies.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/lib/vue.min.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://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/setMsie11GridColumnPositions.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/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/sticky-header.js (expiration not specified)
https://www.surf.nl/js/components/title-carousel.js (expiration not specified)
https://www.surf.nl/js/components/toggle-thirdpartycookies.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/lib/vue.min.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)
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://surfnet.nl/
https://surfnet.nl/
https://www.surf.nl/over-surf/werkmaatschappijen/surfnet
https://surfnet.nl/
https://www.surf.nl/over-surf/werkmaatschappijen/surfnet
priority - 7Optimize images
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 67KiB (73% reduction).
Compressing https://www.surf.nl/binaries/vrijcomponent/content…bruik_vumc_en_oclc.jpg could save 50.6KiB (69% reduction).
Compressing https://www.surf.nl/images/btn-more-03.png could save 14.5KiB (93% reduction).
Compressing https://www.surf.nl/images/ico-search.png could save 992B (72% reduction).
Compressing https://www.surf.nl/images/arrow-03.png could save 868B (89% reduction).
Compressing https://www.surf.nl/images/sprite-arrows.png could save 116B (28% reduction).
Compressing https://www.surf.nl/images/btn-more-03.png could save 14.5KiB (93% reduction).
Compressing https://www.surf.nl/images/ico-search.png could save 992B (72% reduction).
Compressing https://www.surf.nl/images/arrow-03.png could save 868B (89% reduction).
Compressing https://www.surf.nl/images/sprite-arrows.png could save 116B (28% reduction).
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 43.9KiB (66% reduction).
Compressing https://webstats.surf.nl/piwik.js could save 43.1KiB (66% reduction).
Compressing https://www.surf.nl/menu.json?_hn:type=resource&_h…r20&_hn:rid=responsive could save 808B (63% reduction).
Compressing https://www.surf.nl/menu.json?_hn:type=resource&_h…r20&_hn:rid=responsive could save 808B (63% reduction).
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 - 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 4.4KiB (13% reduction).
Minifying https://www.surf.nl/css/all.css could save 4KiB (12% reduction) after compression.
Minifying https://www.surf.nl/js/lib/jquery.cookiebar.min.css could save 371B (55% reduction) after compression.
Minifying https://www.surf.nl/js/lib/jquery.cookiebar.min.css could save 371B (55% reduction) after compression.
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 3.9KiB (25% 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.
Minifying https://www.surf.nl/js/assets/searchautocomplete.js could save 300B (19% reduction) after compression.
Minifying https://www.surf.nl/js/lib/jquery.cookiebar.min.js could save 278B (19% reduction) after compression.
Minifying https://www.surf.nl/js/assets/equalheight.js could save 215B (33% reduction) after compression.
Minifying https://www.surf.nl/js/assets/setMsie11GridColumnPositions.js could save 187B (19% reduction) after compression.
Minifying https://www.surf.nl/js/components/facetnavigation.js could save 148B (27% reduction) after compression.
Minifying https://www.surf.nl/js/lib/enquire.min.js could save 142B (15% reduction) after compression.
Minifying https://www.surf.nl/js/assets/sessionaccordion.js could save 137B (16% reduction) after compression.
Minifying https://www.surf.nl/js/components/datepicker.js could save 133B (28% reduction) after compression.
Minifying https://www.surf.nl/js/components/jquery.ui.datepicker-nl.js could save 132B (27% reduction) after compression.
Minifying https://www.surf.nl/js/components/sticky-header.js could save 131B (30% 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.
Minifying https://www.surf.nl/js/assets/searchautocomplete.js could save 300B (19% reduction) after compression.
Minifying https://www.surf.nl/js/lib/jquery.cookiebar.min.js could save 278B (19% reduction) after compression.
Minifying https://www.surf.nl/js/assets/equalheight.js could save 215B (33% reduction) after compression.
Minifying https://www.surf.nl/js/assets/setMsie11GridColumnPositions.js could save 187B (19% reduction) after compression.
Minifying https://www.surf.nl/js/components/facetnavigation.js could save 148B (27% reduction) after compression.
Minifying https://www.surf.nl/js/lib/enquire.min.js could save 142B (15% reduction) after compression.
Minifying https://www.surf.nl/js/assets/sessionaccordion.js could save 137B (16% reduction) after compression.
Minifying https://www.surf.nl/js/components/datepicker.js could save 133B (28% reduction) after compression.
Minifying https://www.surf.nl/js/components/jquery.ui.datepicker-nl.js could save 132B (27% reduction) after compression.
Minifying https://www.surf.nl/js/components/sticky-header.js could save 131B (30% 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 1.2KiB (20% reduction).
Minifying https://www.surf.nl/over-surf/werkmaatschappijen/surfnet could save 1.2KiB (20% reduction) after compression.
surfnet.nl Desktop Resource Breakdown
| Total Resources | 62 |
| Number of Hosts | 3 |
| Static Resources | 55 |
| JavaScript Resources | 34 |
| CSS Resources | 2 |
surfnet.nl mobile page speed rank
Last tested: 2019-01-25
Mobile Speed
Bad
55/100
surfnet.nl Mobile Speed Test Quick Summary
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://surfnet.nl/
https://surfnet.nl/
https://www.surf.nl/over-surf/werkmaatschappijen/surfnet
https://surfnet.nl/
https://www.surf.nl/over-surf/werkmaatschappijen/surfnet
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://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/setMsie11GridColumnPositions.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/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/sticky-header.js (expiration not specified)
https://www.surf.nl/js/components/title-carousel.js (expiration not specified)
https://www.surf.nl/js/components/toggle-thirdpartycookies.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/lib/vue.min.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://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/setMsie11GridColumnPositions.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/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/sticky-header.js (expiration not specified)
https://www.surf.nl/js/components/title-carousel.js (expiration not specified)
https://www.surf.nl/js/components/toggle-thirdpartycookies.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/lib/vue.min.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)
priority - 16Eliminate 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 - 5Optimize images
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 52.5KiB (69% reduction).
Compressing https://www.surf.nl/binaries/vrijcomponent/content…bruik_vumc_en_oclc.jpg could save 50.6KiB (69% reduction).
Compressing https://www.surf.nl/images/ico-search.png could save 992B (72% reduction).
Compressing https://www.surf.nl/images/arrow-03.png could save 868B (89% reduction).
Compressing https://www.surf.nl/images/sprite-arrows.png could save 116B (28% reduction).
Compressing https://www.surf.nl/images/ico-search.png could save 992B (72% reduction).
Compressing https://www.surf.nl/images/arrow-03.png could save 868B (89% reduction).
Compressing https://www.surf.nl/images/sprite-arrows.png could save 116B (28% reduction).
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 43.9KiB (66% reduction).
Compressing https://webstats.surf.nl/piwik.js could save 43.1KiB (66% reduction).
Compressing https://www.surf.nl/menu.json?_hn:type=resource&_h…r20&_hn:rid=responsive could save 808B (63% reduction).
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priority - 0Minify CSS
Compacting CSS code can save many bytes of data and speed up download and parse times.
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priority - 0Minify JavaScript
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priority - 0Minify HTML
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surfnet.nl Mobile Resource Breakdown
| Total Resources | 55 |
| Number of Hosts | 3 |
| Static Resources | 48 |
| JavaScript Resources | 34 |
| CSS Resources | 2 |
surfnet.nl mobile page usability
Last tested: 2019-01-25
Mobile Usability
Good
100/100
surfnet.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="/"> <!--<..."
"...E 8]><!--> <html xml:lang="nl" lang="nl" static-url="/"> <!--<..."
Bad value “DC.rights copyright” for attribute “rel” on element “link”: The string “DC.rights” is not a registered keyword.
Line: 14 Column: 1 - 75
"...t</title> <link rel="DC.rights copyright" href="https://www.surf.nl/copyright.html"/> <link..."
"...t</title> <link rel="DC.rights copyright" href="https://www.surf.nl/copyright.html"/> <link..."
Bad value “schema.DC” for attribute “rel” on element “link”: The string “schema.DC” is not a registered keyword.
Line: 16 Column: 1 - 64
"...terms/"/> <link rel="schema.DC" href="https://purl.org/dc/elements/1.1/"/> <meta..."
"...terms/"/> <link rel="schema.DC" href="https://purl.org/dc/elements/1.1/"/> <meta..."
Element “div” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
Line: 258 Column: 53 - 84
"... <div class="carousel-container"><h1>Ge..."
"... <div class="carousel-container"><h1>Ge..."
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Line: 277 Column: 99 - 210
"...ens.html"><img height="237" src="/binaries/content/gallery/surf/publicaties/cover-learning-analytics-wpb.png" width="165"></a></..."
"...ens.html"><img height="237" src="/binaries/content/gallery/surf/publicaties/cover-learning-analytics-wpb.png" width="165"></a></..."
No “p” element in scope but a “p” end tag seen.
Line: 303 Column: 11 - 14
"... </div></p></p> ..." Line: 303 Column: 15 - 18
"...</div></p></p> <p..."
"... </div></p></p> ..." Line: 303 Column: 15 - 18
"...</div></p></p> <p..."
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surfnet.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.
surfnet.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.