ou.nl Website Information

Daily Unique Visits: 82,271

Daily Page Views: 493,626

Income Per Day: $987

Estimated Value: $710,640

This website is located in Netherlands and is using following IP address 145.20.124.148. See the complete list of popular websites hosted in Netherlands.

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

Website ou.nl is using the following name servers:

dns.ou.nl
ns.ou.nl
ns2.ou.nl
dns2.ou.nl

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

The highest website ou.nl position in Alexa rank database was 8312 and the lowest rank position was 989577. Current position of ou.nl in Alexa rank database is 17433.

Desktop speed score of ou.nl (57/100) is better than the results of 31.79% of other sites and shows that the page desktop performance can be improved.

Mobile usability score of ou.nl (97/100) is better than the results of 49.9% of other sites and means that the page is mobile-friendly.

Mobile speed score of ou.nl (45/100) is better than the results of 25.64% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.

ou.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.

ou.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: ou.nl
Status: active

Registrar:
Open Universiteit
Valkenburgerweg 177
6419AT HEERLEN
Netherlands

Abuse Contact:

Creation Date: 1997-11-27

Updated Date: 2020-02-26

DNSSEC: yes

Domain nameservers:
ns.ou.nl 145.20.126.12
ns.ou.nl 2001:610:338:1030::126:12
ns2.ou.nl 145.20.126.13
ns2.ou.nl 2001:610:338:1030::126:13
dns.ou.nl 2001:610:338:1030::126:14
dns.ou.nl 145.20.126.14
dns2.ou.nl 2001:610:338:1030::126:15
dns2.ou.nl 145.20.126.15

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).

ou.nl server information

Servers Location

ou.nl desktop page speed rank

Last tested: 2017-05-14

Desktop Speed Bad

57/100

ou.nl Desktop Speed Test Quick Summary

priority - 21Minify JavaScript

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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:

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https://www.ou.nl/corp-theme/css/fonts/openSans/Se…OpenSans-Semibold.woff (expiration not specified)
https://www.ou.nl/corp-theme/images/logo-ou.png (expiration not specified)
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https://www.ou.nl/corp-theme/js/vendors/jquery-2.2.3.min.js (expiration not specified)
https://www.ou.nl/documents/40554/114289/MW_Zorgse…_12221_tile_narrow.jpg (expiration not specified)
https://www.ou.nl/documents/40554/114379/OPL_Leraren_tile_narrow.jpg (expiration not specified)
https://www.ou.nl/documents/40554/42937/INF_WebSec…Jonker_tile_narrow.jpg (expiration not specified)
https://www.ou.nl/documents/40554/42997/NW_MOOC_Ma…Litter_tile_narrow.jpg (expiration not specified)
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https://www.ou.nl/documents/40554/43176/PSY_SafePAT_11507_tile_narrow.jpg (expiration not specified)
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https://www.ou.nl/documents/40554/73589/Homepage_mei17_13032_head_large.jpg (expiration not specified)
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https://www.ou.nl/html/js/aui/event-touch/event-touch.js (expiration not specified)
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https://www.googletagmanager.com/gtm.js?id=GTM-PTDP85 (15 minutes)
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priority - 17Optimize images

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

Your page has 98 blocking script resources and 96 blocking CSS resources. This causes a delay in rendering your page.

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priority - 1Minify CSS

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ou.nl Desktop Resource Breakdown

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ou.nl mobile page speed rank

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priority - 29Leverage browser caching

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priority - 23Minify JavaScript

Compacting JavaScript code can save many bytes of data and speed up downloading, parsing, and execution time.

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priority - 12Optimize images

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priority - 6Reduce server response time

priority - 1Minify 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 12.6KiB (15% reduction).

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priority - 0Minify HTML

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ou.nl Mobile Resource Breakdown

Total Resources	243
Number of Hosts	4
Static Resources	40
JavaScript Resources	124
CSS Resources	98

ou.nl mobile page usability

Last tested: 2018-06-12

Mobile Usability Good

97/100

ou.nl Mobile Usability Test Quick Summary

priority - 2Size 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="https://www.ou…e-8633dda9032c" class="pdf-link">privacybeleid</a> is close to 1 other tap targets.

The tap target <a id="_cookieDisplay…rtlet_readMore" href="https://www.ou…acy_policy.jsp">Meer lezen</a> is close to 1 other tap targets.

The tap target <a href="/bachelor">• Bacheloropleidingen</a> and 18 others are close to other tap targets.

ou.nl HTML validation

Errors

A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.

Line: 165 Column: 2 - 63
"..."utf-8"> <meta http-equiv="x-ua-compatible" content="ie=edge,chrome=1"> <met..."

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: 240 Column: 1 - 69
"... <meta content="text/html; charset=UTF-8" http-equiv="content-type" /> ..."

Bad start tag in “iframe” in “head”.

Line: 1121 Column: 11 - 60
"...<noscript><iframe src="//www.googletagmanager.com/ns.html?id=GTM-PTDP85" height="0" width="0" style="display:none;visibility:hidden"></ifra..."

Stray end tag “noscript”.

Line: 1121 Column: 70 - 80
"...></iframe></noscript> <scri..."

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

Line: 1173 Column: 2 - 24
"... <style type="text/css"> ..."

A “link” element must not appear as a descendant of a “body” element unless the “link” element has an “itemprop” attribute or has a “rel” attribute whose value contains “dns-prefetch”, “pingback”, “preconnect”, “prefetch”, “preload”, “prerender”, or “stylesheet”.

Line: 1322 Column: 2 - 116
"...yle> <link rel="apple-touch-icon" sizes="57x57" href="https://www.ou.nl/corp-theme/images/favicon/apple-icon-57x57.png"> <lin..." Line: 1323 Column: 2 - 116
"...57.png"> <link rel="apple-touch-icon" sizes="60x60" href="https://www.ou.nl/corp-theme/images/favicon/apple-icon-60x60.png"> <lin..." Line: 1324 Column: 2 - 116
"...60.png"> <link rel="apple-touch-icon" sizes="72x72" href="https://www.ou.nl/corp-theme/images/favicon/apple-icon-72x72.png"> <lin..." Line: 1325 Column: 2 - 116
"...72.png"> <link rel="apple-touch-icon" sizes="76x76" href="https://www.ou.nl/corp-theme/images/favicon/apple-icon-76x76.png"> <lin..." Line: 1326 Column: 2 - 120
"...76.png"> <link rel="apple-touch-icon" sizes="114x114" href="https://www.ou.nl/corp-theme/images/favicon/apple-icon-114x114.png"> <lin..." Line: 1327 Column: 2 - 120
"...14.png"> <link rel="apple-touch-icon" sizes="120x120" href="https://www.ou.nl/corp-theme/images/favicon/apple-icon-120x120.png"> <lin..." Line: 1328 Column: 2 - 120
"...20.png"> <link rel="apple-touch-icon" sizes="144x144" href="https://www.ou.nl/corp-theme/images/favicon/apple-icon-144x144.png"> <lin..." Line: 1329 Column: 2 - 120
"...44.png"> <link rel="apple-touch-icon" sizes="152x152" href="https://www.ou.nl/corp-theme/images/favicon/apple-icon-152x152.png"> <lin..." Line: 1330 Column: 2 - 120
"...52.png"> <link rel="apple-touch-icon" sizes="180x180" href="https://www.ou.nl/corp-theme/images/favicon/apple-icon-180x180.png"> <lin..." Line: 1331 Column: 2 - 128
"...80.png"> <link rel="icon" type="image/png" sizes="192x192" href="https://www.ou.nl/corp-theme/images/favicon/android-icon-192x192.png"> <lin..." Line: 1332 Column: 2 - 118
"...92.png"> <link rel="icon" type="image/png" sizes="32x32" href="https://www.ou.nl/corp-theme/images/favicon/favicon-32x32.png"> <lin..." Line: 1333 Column: 2 - 118
"...32.png"> <link rel="icon" type="image/png" sizes="96x96" href="https://www.ou.nl/corp-theme/images/favicon/favicon-96x96.png"> <lin..." Line: 1334 Column: 2 - 118
"...96.png"> <link rel="icon" type="image/png" sizes="16x16" href="https://www.ou.nl/corp-theme/images/favicon/favicon-16x16.png"> <lin..." Line: 1335 Column: 2 - 87
"...16.png"> <link rel="manifest" href="https://www.ou.nl/corp-theme/images/favicon/manifest.json"> <met..."

Attribute “name” not allowed on element “meta” at this point.

Line: 1336 Column: 2 - 56
"...t.json"> <meta name="msapplication-TileColor" content="#ffffff"> <met..." Line: 1337 Column: 2 - 69
"...ffffff"> <meta name="msapplication-TileImage" content="/ms-icon-144x144.png"> <met..." Line: 1338 Column: 2 - 44
"...44.png"> <meta name="theme-color" content="#ffffff"> </he..."

Element “meta” is missing one or more of the following attributes: “itemprop”, “property”.

Stray end tag “head”.

Line: 1340 Column: 1 - 7
"...ffffff"> </head> <bod..."

Start tag “body” seen but an element of the same type was already open.

Line: 1342 Column: 1 - 74
"... </head> <body class=" yui3-skin-sam controls-visible signed-out public-page site"> <a h..."

Cannot recover after last error. Any further errors will be ignored.

Line: 1342 Column: 1 - 74
"... </head> <body class=" yui3-skin-sam controls-visible signed-out public-page site"> <a h..."

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ou.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.

ou.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.

OU.NL Homepage - Open Universiteit - Open Universiteit

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ou.nl Desktop Speed Test Quick Summary

priority - 21Minify 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 200.2KiB (56% reduction).

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:

priority - 17Optimize images

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

Optimize the following images to reduce their size by 162.3KiB (29% reduction).

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

Your page has 98 blocking script resources and 96 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

Optimize CSS Delivery of the following:

priority - 6Reduce server response time

priority - 3Avoid 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.

priority - 1Minify 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 11KiB (15% reduction).

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 2.6KiB (19% reduction).

ou.nl Desktop Resource Breakdown

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ou.nl Mobile Speed Test Quick Summary

priority - 64Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 98 blocking script resources and 98 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

Optimize CSS Delivery of the following:

priority - 29Leverage 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:

priority - 23Minify 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 223.2KiB (55% reduction).

priority - 12Optimize images

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

Optimize the following images to reduce their size by 114.2KiB (20% reduction).

priority - 6Reduce server response time

priority - 1Minify 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 12.6KiB (15% reduction).

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 3.7KiB (20% reduction).

ou.nl Mobile Resource Breakdown

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ou.nl Mobile Usability Test Quick Summary

priority - 2Size 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.

ou.nl HTML validation

Errors

A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.

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.

Bad start tag in “iframe” in “head”.

Stray end tag “noscript”.

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

Attribute “name” not allowed on element “meta” at this point.

Element “meta” is missing one or more of the following attributes: “itemprop”, “property”.

Stray end tag “head”.

Start tag “body” seen but an element of the same type was already open.

Cannot recover after last error. Any further errors will be ignored.

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