IVIR.NL IVIR - Universiteit van Amsterdam

ivir.nl Website Information

Daily Unique Visits: 19,779

Daily Page Views: 118,674

Income Per Day: $237

Estimated Value: $170,640

This website is located in Netherlands and is using following IP address 185.96.5.99. See the complete list of popular websites hosted in Netherlands.

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

Website ivir.nl is using the following name servers:

  • ns0.transip.net
  • ns1.transip.nl
  • ns2.transip.eu

and is probably hosted by CloudVPS B.V.. See the full list of other websites hosted by CloudVPS B.V..

The highest website ivir.nl position in Alexa rank database was 46324 and the lowest rank position was 995940. Current position of ivir.nl in Alexa rank database is 72512.

Desktop speed score of ivir.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 ivir.nl (96/100) is better than the results of 46.59% of other sites and means that the page is mobile-friendly.

Mobile speed score of ivir.nl (56/100) is better than the results of 45.93% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.

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ivir.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.


ivir.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: ivir.nl
Status: active

Reseller:
TransIP
Vondellaan 47
2332AA Leiden
Netherlands

Registrar:
team.blue nl B.V.
Vondellaan 47
2332AA Leiden
Netherlands

Abuse Contact:
abuse@nl.team.blue

Creation Date: 1997-05-02

Updated Date: 2021-09-25

DNSSEC: yes

Domain nameservers:
ns0.transip.net
ns1.transip.nl
ns2.transip.eu

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).

ivir.nl server information

Servers Location

ivir.nl desktop page speed rank

Last tested: 2019-09-09


Desktop Speed Medium
70/100

ivir.nl Desktop Speed Test Quick Summary


priority - 11Reduce server response time

In our test, your server responded in 0.77 seconds.

priority - 10Optimize images

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priority - 9Avoid landing page redirects

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priority - 8Eliminate render-blocking JavaScript and CSS in above-the-fold content

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priority - 4Leverage 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.ivir.nl/wp-content/plugins/sitepress-m…l-cms/res/flags/en.png (expiration not specified)
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https://www.ivir.nl/wp-content/themes/ivir-theme/a…/images/arrowright.png (expiration not specified)
https://www.ivir.nl/wp-content/themes/ivir-theme/a…images/icon-search.png (expiration not specified)
https://www.ivir.nl/wp-content/themes/ivir-theme/a…s/images/ivir-logo.png (expiration not specified)
https://www.ivir.nl/wp-content/themes/ivir-theme/assets/images/uvalogo.jpg (expiration not specified)
https://www.googletagmanager.com/gtag/js?id=UA-60813905-2 (15 minutes)
https://www.google-analytics.com/analytics.js (2 hours)

priority - 1Minify CSS

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priority - 0Minify JavaScript

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ivir.nl Desktop Resource Breakdown

Total Resources31
Number of Hosts4
Static Resources8
JavaScript Resources15
CSS Resources6

ivir.nl mobile page speed rank

Last tested: 2019-08-20


Mobile Speed Bad
56/100

ivir.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://ivir.nl/
https://ivir.nl/
https://www.ivir.nl/

priority - 32Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 7 blocking script resources and 5 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

https://www.ivir.nl/wp-content/themes/ivir-theme/a…query.min.js?ver=5.2.2
https://www.ivir.nl/wp-content/plugins/sitepress-m…irect/app.js?ver=4.2.4
https://www.ivir.nl/wp-content/themes/ivir-theme/a…modernizr.js?ver=5.2.2
https://www.ivir.nl/wp-includes/js/jquery/jquery-migrate.min.js?ver=1.4.1
https://www.ivir.nl/wp-content/themes/ivir-theme/a…fastclick.js?ver=5.2.2
https://www.ivir.nl/wp-content/themes/ivir-theme/a…mmenu.min.js?ver=5.2.2
https://www.ivir.nl/wp-content/plugins/teachpress/js/frontend.js?ver=6.2.4

Optimize CSS Delivery of the following:

https://www.ivir.nl/wp-includes/css/dist/block-lib…tyle.min.css?ver=5.2.2
https://www.ivir.nl/wp-content/plugins/contact-for…s/styles.css?ver=5.1.3
https://www.ivir.nl/wp-content/plugins/sitepress-m…zontal/style.css?ver=1
https://www.ivir.nl/wp-content/themes/ivir-theme/style.css?ver=5.2.2
https://www.ivir.nl/wp-content/plugins/teachpress/…ss_front.css?ver=6.2.4

priority - 9Reduce server response time

In our test, your server responded in 0.35 seconds.

priority - 6Leverage 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://www.ivir.nl/wp-content/plugins/sitepress-m…l-cms/res/flags/en.png (expiration not specified)
https://www.ivir.nl/wp-content/plugins/sitepress-m…l-cms/res/flags/nl.png (expiration not specified)
https://www.ivir.nl/wp-content/themes/ivir-theme/a…/images/arrowright.png (expiration not specified)
https://www.ivir.nl/wp-content/themes/ivir-theme/a…images/icon-search.png (expiration not specified)
https://www.ivir.nl/wp-content/themes/ivir-theme/a…s/images/ivir-logo.png (expiration not specified)
https://www.ivir.nl/wp-content/themes/ivir-theme/assets/images/uvalogo.jpg (expiration not specified)
https://www.googletagmanager.com/gtag/js?id=UA-60813905-2 (15 minutes)
https://www.google-analytics.com/analytics.js (2 hours)

priority - 4Optimize images

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priority - 1Minify CSS

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Minify CSS for the following resources to reduce their size by 5.3KiB (22% reduction).

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priority - 0Minify JavaScript

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ivir.nl Mobile Resource Breakdown

Total Resources32
Number of Hosts4
Static Resources8
JavaScript Resources15
CSS Resources6

ivir.nl mobile page usability

Last tested: 2019-08-20


Mobile Usability Good
96/100

ivir.nl Mobile Usability Test Quick Summary


priority - 3Size 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.iv…mployee/poort/">Poort, J.</a> and 55 others are close to other tap targets.
The tap target <a class="tp_title_link">Hosting interm…vice landscape</a> and 5 others are close to other tap targets.

ivir.nl HTML validation

Warnings

Consider avoiding viewport values that prevent users from resizing documents.

Line: 7 Column: 9 - 117
"...> <meta name="viewport" content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0" /> ..."

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: 8 Column: 9 - 73
"...> <meta http-equiv="X-UA-Compatible" content="IE=edge, chrome=1" /> ..."

Bad value “” for attribute “href” on element “link”: Must be non-empty.

Line: 30 Column: 9 - 39
"...> <link rel="pingback" href="" /> ..."

Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.

Line: 96 Column: 1 - 69
"...</script> <link rel='https://api.w.org/' href='https://www.ivir.nl/wp-json/' /> <meta..."

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

Line: 173 Column: 63 - 164
"....ivir.nl"><img width="240" src="https://www.ivir.nl/wp-content/themes/ivir-theme/assets/images/ivir-logo.png" /></a> ..." Line: 187 Column: 79 - 166
"....ivir.nl"><img src="https://www.ivir.nl/wp-content/themes/ivir-theme/assets/images/uvalogo.jpg" /></a> ..."

Duplicate attribute “target”.

Line: 451 Column: - 210
"...ad=true" target="_blank"><div ..." Line: 505 Column: - 253
"...cts.pdf" target="_blank"><div ..." Line: 533 Column: - 210
"...8-3.pdf" target="_blank"><div ..." Line: 580 Column: - 200
"...8_6.pdf" target="_blank"><div ..." Line: 604 Column: - 196
"...8_2.pdf" target="_blank"><div ..." Line: 628 Column: - 192
"..._on.pdf" target="_blank"><div ..." Line: 708 Column: - 206
"...018.pdf" target="_blank"><div ..." Line: 732 Column: - 206
"...018.pdf" target="_blank"><div ..." Line: 756 Column: - 194
"...sis.pdf" target="_blank"><div ..." Line: 781 Column: - 202
"...ers.pdf" target="_blank"><div ..." Line: 831 Column: - 200
"...hts.pdf" target="_blank"><div ..." Line: 904 Column: - 199
"...8_2.pdf" target="_blank"><div ..." Line: 929 Column: - 201
"...2-1.pdf" target="_blank"><div ..."

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ivir.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.


ivir.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.