ascleiden.nl Website Information

Daily Unique Visits: 9,318

Daily Page Views: 46,590

Income Per Day: $116

Estimated Value: $69,600

This website is located in Netherlands and is using following IP address 194.171.94.163. See the complete list of popular websites hosted in Netherlands.

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

Website ascleiden.nl is using the following name servers:

edns5.ultradns.org
edns5.ultradns.com

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

The highest website ascleiden.nl position in Alexa rank database was 28963 and the lowest rank position was 997531. Current position of ascleiden.nl in Alexa rank database is 146230.

Desktop speed score of ascleiden.nl (55/100) is better than the results of 29.37% of other sites and shows that the page desktop performance can be improved.

Mobile usability score of ascleiden.nl (64/100) is better than the results of 11.2% of other sites and means that the page is not mobile-friendly.

Mobile speed score of ascleiden.nl (59/100) is better than the results of 52.41% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.

ascleiden.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.

ascleiden.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: ascleiden.nl
Status: active

Registrar:
Universiteit Leiden
Niels Bohrweg 1
2333CA Leiden
Netherlands

Abuse Contact:
abuse@leidenuniv.nl

Creation Date: 2005-02-16

Updated Date: 2021-05-12

DNSSEC: no

Domain nameservers:
edns5.ultradns.com
edns5.ultradns.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).

ascleiden.nl server information

Servers Location

ascleiden.nl desktop page speed rank

Last tested: 2019-07-01

Desktop Speed Bad

55/100

ascleiden.nl Desktop Speed Test Quick Summary

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ascleiden.nl Desktop Resource Breakdown

Total Resources	82
Number of Hosts	4
Static Resources	33
JavaScript Resources	6
CSS Resources	45

ascleiden.nl mobile page speed rank

Last tested: 2019-08-10

Mobile Speed Bad

59/100

ascleiden.nl Mobile Speed Test Quick Summary

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ascleiden.nl Mobile Resource Breakdown

Total Resources	44
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JavaScript Resources	6
CSS Resources	6

ascleiden.nl mobile page usability

Last tested: 2019-08-10

Mobile Usability Bad

64/100

ascleiden.nl Mobile Usability Test Quick Summary

priority - 40Use legible font sizes

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to renders only 5 pixels tall (12 CSS pixels).

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priority - 10Configure the viewport

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priority - 4Size tap targets appropriately

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priority - 3Size content to viewport

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The element <div class="section">24 May 2019 to…methodologies</div> falls outside the viewport.

ascleiden.nl HTML validation

Errors

Legacy doctype. Expected “<!DOCTYPE html>”.

Line: 2 Column: 1 - 50
"...<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML+RDFa 1.0//EN" "http://www.w3.org/MarkUp/DTD/xhtml-rdfa-1.dtd"> <html..."

Attribute “xmlns:og” not allowed here.

Line: 17 Column: 51 - 48
"...fa-1.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" version="XHTML+RDFa 1.0" dir="ltr" xmlns:og="http://ogp.me/ns#" xmlns:article="http://ogp.me/ns/article#" xmlns:book="http://ogp.me/ns/book#" xmlns:profile="http://ogp.me/ns/profile#" xmlns:video="http://ogp.me/ns/video#" xmlns:product="http://ogp.me/ns/product#" xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:dc="http://purl.org/dc/terms/" xmlns:foaf="http://xmlns.com/foaf/0.1/" xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#" xmlns:sioc="http://rdfs.org/sioc/ns#" xmlns:sioct="http://rdfs.org/sioc/types#" xmlns:skos="http://www.w3.org/2004/02/skos/core#" xmlns:xsd="http://www.w3.org/2001/XMLSchema#"> <hea..."

Attribute “xmlns:article” not allowed here.

Attribute “xmlns:book” not allowed here.

Attribute “xmlns:profile” not allowed here.

Attribute “xmlns:video” not allowed here.

Attribute “xmlns:product” not allowed here.

Attribute “xmlns:content” not allowed here.

Attribute “xmlns:dc” not allowed here.

Attribute “xmlns:foaf” not allowed here.

Attribute “xmlns:rdfs” not allowed here.

Attribute “xmlns:sioc” not allowed here.

Attribute “xmlns:sioct” not allowed here.

Attribute “xmlns:skos” not allowed here.

Attribute “xmlns:xsd” not allowed here.

When the attribute “xml:lang” in no namespace is specified, the element must also have the attribute “lang” present with the same value.

The “version” attribute on the “html” element is obsolete. You can safely omit it.

The “profile” attribute on the “head” element is obsolete. To declare which “meta” terms are used in the document, instead register the names as meta extensions. To trigger specific UA behaviors, use a “link” element instead.

Line: 19 Column: 49 - 51
"...LSchema#"> <head profile="http://www.w3.org/1999/xhtml/vocab"> <me..."

Attribute “datatype” not allowed on element “span” at this point.

Line: 246 Column: 91 - 203
"...-content"><span class="date-display-single" property="dc:date" datatype="xsd:dateTime" content="2018-04-26T00:00:00+02:00">26 Apr..." Line: 252 Column: 91 - 203
"...-content"><span class="date-display-single" property="dc:date" datatype="xsd:dateTime" content="2018-04-12T00:00:00+02:00">12 Apr..." Line: 258 Column: 91 - 203
"...-content"><span class="date-display-single" property="dc:date" datatype="xsd:dateTime" content="2018-03-28T00:00:00+02:00">28 Mar..." Line: 264 Column: 91 - 203
"...-content"><span class="date-display-single" property="dc:date" datatype="xsd:dateTime" content="2018-03-26T00:00:00+02:00">26 Mar..." Line: 270 Column: 91 - 203
"...-content"><span class="date-display-single" property="dc:date" datatype="xsd:dateTime" content="2017-12-28T00:00:00+01:00">28 Dec..." Line: 523 Column: 91 - 202
"...-content"><span class="date-display-start" property="dc:date" datatype="xsd:dateTime" content="2018-03-01T00:00:00+01:00">01 Mar..." Line: 523 Column: 227 - 336
".../span> to <span class="date-display-end" property="dc:date" datatype="xsd:dateTime" content="2018-06-01T00:00:00+02:00">01 Jun..." Line: 528 Column: 91 - 202
"...-content"><span class="date-display-start" property="dc:date" datatype="xsd:dateTime" content="2018-04-09T00:00:00+02:00">09 Apr..." Line: 528 Column: 227 - 336
".../span> to <span class="date-display-end" property="dc:date" datatype="xsd:dateTime" content="2018-07-01T00:00:00+02:00">0..." Line: 533 Column: 91 - 203
"...-content"><span class="date-display-single" property="dc:date" datatype="xsd:dateTime" content="2018-04-30T00:00:00+02:00">30 Apr..." Line: 538 Column: 91 - 202
"...-content"><span class="date-display-start" property="dc:date" datatype="xsd:dateTime" content="2018-05-01T00:00:00+02:00">01 May..." Line: 538 Column: 225 - 334
".../span> to <span class="date-display-end" property="dc:date" datatype="xsd:dateTime" content="2018-05-04T00:00:00+02:00">04 May..." Line: 543 Column: 91 - 203
"...-content"><span class="date-display-single" property="dc:date" datatype="xsd:dateTime" content="2018-05-14T00:00:00+02:00">14 May..." Line: 548 Column: 91 - 203
"...-content"><span class="date-display-single" property="dc:date" datatype="xsd:dateTime" content="2018-05-24T00:00:00+02:00">24 May..." Line: 553 Column: 91 - 203
"...-content"><span class="date-display-single" property="dc:date" datatype="xsd:dateTime" content="2018-06-07T00:00:00+02:00">07 Jun..." Line: 558 Column: 91 - 203
"...-content"><span class="date-display-single" property="dc:date" datatype="xsd:dateTime" content="2018-07-08T00:00:00+02:00">08 Jul..."

Attribute “content” not allowed on element “span” at this point.

Warnings

Attribute with the local name “xmlns:og” is not serializable as XML 1.0.

Attribute with the local name “xmlns:article” is not serializable as XML 1.0.

Attribute with the local name “xmlns:book” is not serializable as XML 1.0.

Attribute with the local name “xmlns:profile” is not serializable as XML 1.0.

Attribute with the local name “xmlns:video” is not serializable as XML 1.0.

Attribute with the local name “xmlns:product” is not serializable as XML 1.0.

Attribute with the local name “xmlns:content” is not serializable as XML 1.0.

Attribute with the local name “xmlns:dc” is not serializable as XML 1.0.

Attribute with the local name “xmlns:foaf” is not serializable as XML 1.0.

Attribute with the local name “xmlns:rdfs” is not serializable as XML 1.0.

Attribute with the local name “xmlns:sioc” is not serializable as XML 1.0.

Attribute with the local name “xmlns:sioct” is not serializable as XML 1.0.

Attribute with the local name “xmlns:skos” is not serializable as XML 1.0.

Attribute with the local name “xmlns:xsd” is not serializable as XML 1.0.

This document appears to be written in English. Consider adding “lang="en"” (or variant) to the “html” start tag.

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ascleiden.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.

ascleiden.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.

ASCLEIDEN.NL African Studies Centre Leiden |

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

Optimize the following images to reduce their size by 605KiB (71% reduction).

priority - 11Reduce server response time

In our test, your server responded in 1.3 seconds.

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Your page has 1 blocking script resources and 45 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

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Minify CSS for the following resources to reduce their size by 12.4KiB (39% reduction).

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ascleiden.nl Desktop Resource Breakdown

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

Your page has 1 blocking script resources and 5 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

Optimize CSS Delivery of the following:

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In our test, your server responded in 1.2 seconds.

priority - 3Minify 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 33.9KiB (36% reduction).

priority - 1Leverage 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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priority - 40Use legible font sizes

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The following text fragments have a small font size. Increase the font size to make them more legible.

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The page content is 992 CSS pixels wide, but the viewport is only 980 CSS pixels wide. The following elements fall outside the viewport:

ascleiden.nl HTML validation

Errors

Legacy doctype. Expected “<!DOCTYPE html>”.

Attribute “xmlns:og” not allowed here.

Attribute “xmlns:article” not allowed here.

Attribute “xmlns:book” not allowed here.

Attribute “xmlns:profile” not allowed here.

Attribute “xmlns:video” not allowed here.

Attribute “xmlns:product” not allowed here.

Attribute “xmlns:content” not allowed here.

Attribute “xmlns:dc” not allowed here.

Attribute “xmlns:foaf” not allowed here.

Attribute “xmlns:rdfs” not allowed here.

Attribute “xmlns:sioc” not allowed here.

Attribute “xmlns:sioct” not allowed here.

Attribute “xmlns:skos” not allowed here.

Attribute “xmlns:xsd” not allowed here.

When the attribute “xml:lang” in no namespace is specified, the element must also have the attribute “lang” present with the same value.

The “version” attribute on the “html” element is obsolete. You can safely omit it.

The “profile” attribute on the “head” element is obsolete. To declare which “meta” terms are used in the document, instead register the names as meta extensions. To trigger specific UA behaviors, use a “link” element instead.

Attribute “datatype” not allowed on element “span” at this point.