CROW.NL Kennisplatform CROW | Praktisch toepasbare kennis - CROW

crow.nl Website Information

Daily Unique Visits: 14,511

Daily Page Views: 87,066

Income Per Day: $174

Estimated Value: $125,280

This website is located in Netherlands and is using following IP address 213.136.31.231. See the complete list of popular websites hosted in Netherlands.

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

Website crow.nl is using the following name servers:

  • nsauth1.bit.nl
  • nsauth2.bit.nl
  • nsauth3.bit.org

and is probably hosted by MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation, US. See the full list of other websites hosted by MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation, US.

The highest website crow.nl position in Alexa rank database was 44596 and the lowest rank position was 999373. Current position of crow.nl in Alexa rank database is 98838.

Desktop speed score of crow.nl (50/100) is better than the results of 23.83% of other sites and shows that the page desktop performance can be improved.

Mobile usability score of crow.nl (94/100) is better than the results of 36.81% of other sites and means that the page is mobile-friendly.

Mobile speed score of crow.nl (47/100) is better than the results of 28.68% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.

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crow.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.


crow.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: crow.nl
Status: active

Registrar:
BIT B.V.
Galileilaan 19
6716BP Ede Gld
Netherlands

Abuse Contact:
+31.318648688
abuse@bit.nl

Creation Date: 1997-02-04

Updated Date: 2018-04-13

DNSSEC: no

Domain nameservers:
nsauth1.bit.nl
nsauth2.bit.nl
nsauth3.bit.org

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).

crow.nl server information

Servers Location

crow.nl desktop page speed rank

Last tested: 2017-05-28


Desktop Speed Bad
50/100

crow.nl Desktop Speed Test Quick Summary


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priority - 12Leverage 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.

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https://www.crow.nl/includes/js/slick.js (expiration not specified)
https://www.crow.nl/getmedia/2b8a35ea-559b-40eb-a3…00&height=273&ext=.jpg (1 second)
https://www.crow.nl/getmedia/42d331fa-49a7-4960-8d…00&height=273&ext=.jpg (1 second)
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https://connect.facebook.net/en_US/fbevents.js (20 minutes)
https://connect.facebook.net/signals/config/1540788962877803?v=2.7.11 (20 minutes)
https://ssl.google-analytics.com/ga.js (2 hours)

priority - 11Reduce server response time

priority - 2Eliminate 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.

Optimize CSS Delivery of the following:

https://www.crow.nl/includes/css/platform.css

priority - 1Minify JavaScript

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priority - 1Minify CSS

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crow.nl Desktop Resource Breakdown

Total Resources41
Number of Hosts9
Static Resources30
JavaScript Resources16
CSS Resources6

crow.nl mobile page speed rank

Last tested: 2017-05-28


Mobile Speed Bad
47/100

crow.nl Mobile Speed Test Quick Summary


priority - 84Optimize images

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

Optimize the following images to reduce their size by 816.6KiB (70% reduction).

Compressing https://www.crow.nl/getmedia/cd34ef41-22f5-4a5a-ad…00&height=273&ext=.jpg could save 251.2KiB (73% reduction).
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Compressing https://www.crow.nl/getmedia/8f5627d2-e07a-4023-a7…00&height=273&ext=.jpg could save 138.3KiB (76% reduction).
Compressing https://www.crow.nl/getmedia/24a93e7e-b810-4d1b-a4…00&height=273&ext=.jpg could save 132.2KiB (69% reduction).
Compressing https://www.crow.nl/getmedia/42d331fa-49a7-4960-8d…00&height=273&ext=.jpg could save 116.9KiB (57% reduction).

priority - 20Leverage 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.crow.nl/includes/css/crow.nl/large.css (expiration not specified)
https://www.crow.nl/includes/css/crow.nl/medium.css (expiration not specified)
https://www.crow.nl/includes/css/crow.nl/print.css (expiration not specified)
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https://www.crow.nl/includes/font/crow.nl/museosans-300-webfont.woff (expiration not specified)
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https://www.crow.nl/includes/image/ajax-loader-slick.gif (expiration not specified)
https://www.crow.nl/includes/image/crow.nl/logo.png (expiration not specified)
https://www.crow.nl/includes/image/social-icons.png (expiration not specified)
https://www.crow.nl/includes/js/crow.nl/default.js (expiration not specified)
https://www.crow.nl/includes/js/flowtype.js (expiration not specified)
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https://www.crow.nl/CMSPages/GetResource.ashx?stylesheetname=Override (1 second)
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https://m.addthisedge.com/live/boost/ra-4f34be5369…_ate.track.config_resp (60 seconds)
https://s7.addthis.com/js/300/addthis_widget.js (10 minutes)
https://connect.facebook.net/en_US/fbevents.js (20 minutes)
https://connect.facebook.net/signals/config/1540788962877803?v=2.7.11 (20 minutes)
https://ssl.google-analytics.com/ga.js (2 hours)

priority - 8Reduce server response time

priority - 8Eliminate 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.

Optimize CSS Delivery of the following:

https://www.crow.nl/includes/css/platform.css

priority - 1Minify 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 8.7KiB (21% reduction).

Minifying https://www.crow.nl/includes/js/crow.nl/default.js could save 5.2KiB (23% reduction) after compression.
Minifying https://www.crow.nl/includes/js/slick.js could save 2.3KiB (22% reduction) after compression.
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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 5.1KiB (18% reduction).

Minifying https://www.crow.nl/includes/css/crow.nl/default.css could save 5.1KiB (18% reduction) after compression.

crow.nl Mobile Resource Breakdown

Total Resources41
Number of Hosts9
Static Resources34
JavaScript Resources17
CSS Resources6

crow.nl mobile page usability

Last tested: 2017-05-28


Mobile Usability Good
94/100

crow.nl Mobile Usability Test Quick Summary


priority - 5Size 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 <li class="">1</li> and 3 others are close to other tap targets.

The tap target <button type="button">1</button> and 4 others are close to other tap targets.

The tap target <li class="slick-active">2</li> is close to 4 other tap targets.

The tap target <a id="p_lt_ctl00_pag…ht_ctl00_aLink" href="over-crow/werk…crow/vacatures">Werken bij CRO…Contracteren.</a> and 3 others are close to other tap targets.
The tap target <label id="p_lt_ctl00_pag…_1_lblPassword" for="p_lt_ctl00_pag…get_1_Password">Wachtwoord:</label> and 1 others are close to other tap targets.
The tap target <a href="http://www.lin…/company/48710" class="addthis_button…_follow at300b">LinkedIn</a> and 3 others are close to other tap targets.
The tap target <a href="http://www.cro…r-crow/contact">Contact</a> and 31 others are close to other tap targets.
The tap target <a href="http://www.crow.nl/copyright">Copyright</a> and 1 others are close to other tap targets.

crow.nl HTML validation

Errors

Bad start tag in “img” in “head”.

Line: 67 Column: 11 - 138
"...<noscript><img height="1" width="1" style="display:none" src="https://www.facebook.com/tr?id=1540788962877803&ev=PageView&noscript=1" /></noscri..."

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

Line: 67 Column: 11 - 138
"...<noscript><img height="1" width="1" style="display:none" src="https://www.facebook.com/tr?id=1540788962877803&ev=PageView&noscript=1" /></noscri..."

Stray end tag “noscript”.

Line: 67 Column: - 149
"......"

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: 100 Column: 1 - 68
"...ager --> <link href="/favicon.ico" type="image/x-icon" rel="shortcut icon" /> <lin..." Line: 101 Column: 1 - 59
"...icon" /> <link href="/favicon.ico" type="image/x-icon" rel="icon" /> </he..."

Stray end tag “head”.

Line: 102 Column: 1 - 7
"...icon" /> </head> <body..."

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

Line: 103 Column: 1 - 49
"... </head> <body class="LTR Gecko Gecko57 NLNL ContentBody"> <..."

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

Line: 103 Column: 1 - 49
"... </head> <body class="LTR Gecko Gecko57 NLNL ContentBody"> <..."

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crow.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.


crow.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.