geheugenvannederland.nl Website Information

Daily Unique Visits: 10,878

Daily Page Views: 54,390

Income Per Day: $136

Estimated Value: $81,600

This website is located in Netherlands and is using following IP address 192.87.31.28. See the complete list of popular websites hosted in Netherlands.

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

Website geheugenvannederland.nl is using the following name servers:

ns1.zurich.surf.net
ns1-konbib.kb.nl
ns1.surfnet.nl

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

The highest website geheugenvannederland.nl position in Alexa rank database was 60891 and the lowest rank position was 999307. Current position of geheugenvannederland.nl in Alexa rank database is 125257.

Desktop speed score of geheugenvannederland.nl (45/100) is better than the results of 19.01% of other sites and shows that the page desktop performance can be improved.

Mobile usability score of geheugenvannederland.nl (99/100) is better than the results of 79.46% of other sites and means that the page is mobile-friendly.

Mobile speed score of geheugenvannederland.nl (37/100) is better than the results of 15.74% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.

geheugenvannederland.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.

geheugenvannederland.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: geheugenvannederland.nl
Status: active

Reseller:
TransIP
Vondellaan 47
2332AA Leiden
Netherlands

Registrar:
TransIP Group
Vondellaan 47
2332AA LEIDEN
Netherlands

Abuse Contact:
abuse@transip.nl

Creation Date: 2000-05-16

Updated Date: 2021-05-13

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).

geheugenvannederland.nl server information

Servers Location

geheugenvannederland.nl desktop page speed rank

Last tested: 2018-12-07

Desktop Speed Bad

45/100

geheugenvannederland.nl Desktop Speed Test Quick Summary

priority - 98Enable compression

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

Your page has 6 blocking script resources and 1 blocking CSS resources. This causes a delay in rendering your page.

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https://www.geheugenvannederland.nl/js/libs/nunjucks-slim.min.js
https://www.geheugenvannederland.nl/js/libs/signals.min.js
https://www.geheugenvannederland.nl/js/lazysizes.min.js
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Optimize CSS Delivery of the following:

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priority - 5Minify JavaScript

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priority - 4Minify CSS

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Minify CSS for the following resources to reduce their size by 37.8KiB (21% reduction).

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priority - 3Reduce server response time

In our test, your server responded in 0.40 seconds.

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.

http://geheugenvannederland.nl/
https://www.geheugenvannederland.nl/
https://www.geheugenvannederland.nl/nl

priority - 3Leverage 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.geheugenvannederland.nl/images/geheugen-van-nederland-logo.svg (expiration not specified)
https://www.geheugenvannederland.nl/js/lazysizes.min.js (expiration not specified)
https://www.geheugenvannederland.nl/js/libs/nunjucks-slim.min.js (expiration not specified)
https://www.geheugenvannederland.nl/js/libs/signals.min.js (expiration not specified)
https://www.googletagmanager.com/gtm.js?id=GTM-TDK6T8K (15 minutes)
https://www.google-analytics.com/analytics.js (2 hours)

priority - 2Prioritize visible content

Your page requires additional network round trips to render the above-the-fold content. For best performance, reduce the amount of HTML needed to render above-the-fold content.

The entire HTML response was not sufficient to render the above-the-fold content. This usually indicates that additional resources, loaded after HTML parsing, were required to render above-the-fold content. Prioritize visible content that is needed for rendering above-the-fold by including it directly in the HTML response.

Only about 9% of the final above-the-fold content could be rendered with the full HTML response.

Click to see the screenshot with only the HTML response:

priority - 0Optimize images

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Compressing https://imageviewer.kb.nl/ImagingService/imagingSe…6size%3Dlarge&maxw=264 could save 1.1KiB (16% reduction).
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priority - 0Minify HTML

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geheugenvannederland.nl Desktop Resource Breakdown

Total Resources	38
Number of Hosts	5
Static Resources	8
JavaScript Resources	8
CSS Resources	1

geheugenvannederland.nl mobile page speed rank

Last tested: 2018-12-07

Mobile Speed Bad

37/100

geheugenvannederland.nl Mobile Speed Test Quick Summary

priority - 88Enable 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 862.7KiB (77% reduction).

Compressing https://www.geheugenvannederland.nl/nl/api/javascripts?version=1542884067 could save 359.2KiB (77% reduction).
Compressing https://www.geheugenvannederland.nl/js/jquery-vendor.js?version=1542884067 could save 205.8KiB (71% reduction).
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Compressing https://www.geheugenvannederland.nl/images/geheugen-van-nederland-logo.svg could save 745B (54% reduction).

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

Your page has 6 blocking script resources and 1 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

https://www.geheugenvannederland.nl/js/jquery-vendor.js?version=1542884067
https://www.geheugenvannederland.nl/js/libs/nunjucks-slim.min.js
https://www.geheugenvannederland.nl/js/libs/signals.min.js
https://www.geheugenvannederland.nl/js/lazysizes.min.js
https://www.geheugenvannederland.nl/nl/api/i18ntable?version=1542884067
https://www.geheugenvannederland.nl/nl/api/javascripts?version=1542884067

Optimize CSS Delivery of the following:

https://www.geheugenvannederland.nl/css/base.css?r1542884067

priority - 10Avoid 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://geheugenvannederland.nl/
https://www.geheugenvannederland.nl/
https://www.geheugenvannederland.nl/nl

priority - 8Prioritize visible content

Your page requires additional network round trips to render the above-the-fold content. For best performance, reduce the amount of HTML needed to render above-the-fold content.

The entire HTML response was not sufficient to render the above-the-fold content. This usually indicates that additional resources, loaded after HTML parsing, were required to render above-the-fold content. Prioritize visible content that is needed for rendering above-the-fold by including it directly in the HTML response.

Only about 11% of the final above-the-fold content could be rendered with the full HTML response.

Click to see the screenshot with only the HTML response:

priority - 5Minify 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 50.4KiB (16% reduction).

Minifying https://www.geheugenvannederland.nl/js/jquery-vendor.js?version=1542884067 could save 45.1KiB (16% reduction).
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priority - 5Reduce server response time

In our test, your server responded in 0.39 seconds.

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.

Leverage browser caching for the following cacheable resources:

priority - 4Minify 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 37.8KiB (21% reduction).

Minifying https://www.geheugenvannederland.nl/css/base.css?r1542884067 could save 37.8KiB (21% 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 1.2KiB (13% reduction).

Minifying https://www.geheugenvannederland.nl/nl could save 1.2KiB (13% reduction).

priority - 0Optimize images

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

Optimize the following images to reduce their size by 876B (12% reduction).

Compressing https://imageviewer.kb.nl/ImagingService/imagingSe…6size%3Dlarge&maxw=264 could save 876B (12% reduction).

geheugenvannederland.nl Mobile Resource Breakdown

Total Resources	26
Number of Hosts	5
Static Resources	8
JavaScript Resources	8
CSS Resources	1

geheugenvannederland.nl mobile page usability

Last tested: 2018-12-07

Mobile Usability Good

99/100

geheugenvannederland.nl Mobile Usability Test Quick Summary

priority - 0Size 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="/nl/geheugen/r…e=36&coll=ngvn" class="logo-block__tagline-link">799387 beelden</a> and 1 others are close to other tap targets.

The tap target <a id="surprise-link" href="/nl?page=17" class="button-text he…ext-verras-mij">Verras mij</a> is close to 2 other tap targets.

The tap target <label id="label-for-search-box-toggle" for="search-box-toggle" class="button-icon bu…-search-toggle"></label> and 2 others are close to other tap targets.

The tap target <label id="label-for-search-box-toggle" for="search-box-toggle" class="button-icon bu…-search-toggle"></label> is close to 2 other tap targets.

The tap target <a id="favourites-nav" href="/nl/geheugen/favourites" class="button-icon bu…rites-overview"></a> is close to 2 other tap targets.

The tap target <label id="menu-button-label" for="menu-button" class="button-icon bu…tton-icon-menu"></label> is close to 1 other tap targets.

The tap target <a href="/nl/geheugen/b…se/collections" class="menu__list__item__link">Collecties</a> and 4 others are close to other tap targets.

geheugenvannederland.nl HTML validation

Errors

Bad value “0; url='/nl/geheugen/noscript'” for attribute “content” on element “meta”: Expected an unquoted IRI reference, but saw “'” instead.

Line: 11 Column: 13 - 80
"...<noscript><meta http-equiv="refresh" content="0; url='/nl/geheugen/noscript'"></nosc..."

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

Line: 138 Column: 8 - 109
"..."> <img src="data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==" data-src="http://imageviewer.kb.nl/ImagingService/imagingService?useresolver=false&id=http%3A%2F%2Fresolver.kb.nl%2Fresolve%3Furn%3Durn%3Agvn%3ARAN01%3A80018%26size%3Dlarge&maxw=264" class="thumbnail__image browse-result__thumbnail__image lazyload" onerror="changeImageOnError2(this);" > ..." Line: 162 Column: 8 - 109
"..."> <img src="data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==" data-src="http://imageviewer.kb.nl/ImagingService/imagingService?useresolver=false&id=http%3A%2F%2Fresolver.kb.nl%2Fresolve%3Furn%3Durn%3Agvn%3ARAN01%3A80051%26size%3Dlarge&maxw=264" class="thumbnail__image browse-result__thumbnail__image lazyload" onerror="changeImageOnError2(this);" > ..." Line: 186 Column: 8 - 109
"..."> <img src="data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==" data-src="http://imageviewer.kb.nl/ImagingService/imagingService?useresolver=false&id=http%3A%2F%2Fresolver.kb.nl%2Fresolve%3Furn%3Durn%3Agvn%3ARAN01%3A80138%26size%3Dlarge&maxw=264" class="thumbnail__image browse-result__thumbnail__image lazyload" onerror="changeImageOnError2(this);" > ..." Line: 210 Column: 8 - 109
"..."> <img src="data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==" data-src="http://imageviewer.kb.nl/ImagingService/imagingService?useresolver=false&id=http%3A%2F%2Fresolver.kb.nl%2Fresolve%3Furn%3Durn%3Agvn%3ARDMZ01%3AST-2453%26size%3Dlarge&maxw=264" class="thumbnail__image browse-result__thumbnail__image lazyload" onerror="changeImageOnError2(this);" > ..." Line: 234 Column: 8 - 109
"..."> <img src="data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==" data-src="http://imageviewer.kb.nl/ImagingService/imagingService?useresolver=false&id=http%3A%2F%2Fresolver.kb.nl%2Fresolve%3Furn%3Durn%3Agvn%3ARDMZ01%3AST-1425%26size%3Dlarge&maxw=264" class="thumbnail__image browse-result__thumbnail__image lazyload" onerror="changeImageOnError2(this);" > ..." Line: 258 Column: 8 - 109
"..."> <img src="data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==" data-src="http://imageviewer.kb.nl/ImagingService/imagingService?useresolver=false&id=http%3A%2F%2Fresolver.kb.nl%2Fresolve%3Furn%3Durn%3Agvn%3ARDMZ01%3AOF-00190%26size%3Dlarge&maxw=264" class="thumbnail__image browse-result__thumbnail__image lazyload" onerror="changeImageOnError2(this);" > ..." Line: 282 Column: 8 - 109
"..."> <img src="data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==" data-src="http://imageviewer.kb.nl/ImagingService/imagingService?useresolver=false&id=http%3A%2F%2Fresolver.kb.nl%2Fresolve%3Furn%3Durn%3Agvn%3ARDMZ01%3AOF-00112%26size%3Dlarge&maxw=264" class="thumbnail__image browse-result__thumbnail__image lazyload" onerror="changeImageOnError2(this);" > ..." Line: 306 Column: 8 - 109
"..."> <img src="data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==" data-src="http://imageviewer.kb.nl/ImagingService/imagingService?useresolver=false&id=http%3A%2F%2Fresolver.kb.nl%2Fresolve%3Furn%3Durn%3Agvn%3ARDMZ01%3AOF-00048%26size%3Dlarge&maxw=264" class="thumbnail__image browse-result__thumbnail__image lazyload" onerror="changeImageOnError2(this);" > ..." Line: 330 Column: 8 - 109
"..."> <img src="data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==" data-src="http://imageviewer.kb.nl/ImagingService/imagingService?useresolver=false&id=http%3A%2F%2Fresolver.kb.nl%2Fresolve%3Furn%3Durn%3Agvn%3ARDMZ01%3AOF-00089%26size%3Dlarge&maxw=264" class="thumbnail__image browse-result__thumbnail__image lazyload" onerror="changeImageOnError2(this);" > ..." Line: 354 Column: 8 - 109
"..."> <img src="data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==" data-src="http://imageviewer.kb.nl/ImagingService/imagingService?useresolver=false&id=http%3A%2F%2Fresolver.kb.nl%2Fresolve%3Furn%3Durn%3Agvn%3ARDMZ01%3AOF-00099%26size%3Dlarge&maxw=264" class="thumbnail__image browse-result__thumbnail__image lazyload" onerror="changeImageOnError2(this);" > ..." Line: 378 Column: 8 - 109
"..."> <img src="data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==" data-src="http://imageviewer.kb.nl/ImagingService/imagingService?useresolver=false&id=http%3A%2F%2Fresolver.kb.nl%2Fresolve%3Furn%3Durn%3Agvn%3ARDMZ01%3AOF-01306%26size%3Dlarge&maxw=264" class="thumbnail__image browse-result__thumbnail__image lazyload" onerror="changeImageOnError2(this);" > ..." Line: 402 Column: 8 - 109
"..."> <img src="data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==" data-src="http://imageviewer.kb.nl/ImagingService/imagingService?useresolver=false&id=http%3A%2F%2Fresolver.kb.nl%2Fresolve%3Furn%3Durn%3Agvn%3ARDMZ01%3AOF-01436%26size%3Dlarge&maxw=264" class="thumbnail__image browse-result__thumbnail__image lazyload" onerror="changeImageOnError2(this);" > ..." Line: 426 Column: 8 - 109
"..."> <img src="data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==" data-src="http://imageviewer.kb.nl/ImagingService/imagingService?useresolver=false&id=http%3A%2F%2Fresolver.kb.nl%2Fresolve%3Furn%3Durn%3Agvn%3AOHR01%3A0014%26size%3Dlarge&maxw=264" class="thumbnail__image browse-result__thumbnail__image lazyload" onerror="changeImageOnError2(this);" > ..." Line: 450 Column: 8 - 109
"..."> <img src="data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==" data-src="http://imageviewer.kb.nl/ImagingService/imagingService?useresolver=false&id=http%3A%2F%2Fresolver.kb.nl%2Fresolve%3Furn%3Durn%3Agvn%3ANPI01%3A000933%26size%3Dlarge&maxw=264" class="thumbnail__image browse-result__thumbnail__image lazyload" onerror="changeImageOnError2(this);" > ..." Line: 474 Column: 8 - 109
"..."> <img src="data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==" data-src="http://imageviewer.kb.nl/ImagingService/imagingService?useresolver=false&id=http%3A%2F%2Fresolver.kb.nl%2Fresolve%3Furn%3Durn%3Agvn%3AOHR01%3A0044%26size%3Dlarge&maxw=264" class="thumbnail__image browse-result__thumbnail__image lazyload" onerror="changeImageOnError2(this);" > ..." Line: 498 Column: 8 - 109
"..."> <img src="data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==" data-src="http://imageviewer.kb.nl/ImagingService/imagingService?useresolver=false&id=http%3A%2F%2Fresolver.kb.nl%2Fresolve%3Furn%3Durn%3Agvn%3AOHR01%3A0049%26size%3Dlarge&maxw=264" class="thumbnail__image browse-result__thumbnail__image lazyload" onerror="changeImageOnError2(this);" > ..." Line: 522 Column: 8 - 109
"..."> <img src="data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==" data-src="http://imageviewer.kb.nl/ImagingService/imagingService?useresolver=false&id=http%3A%2F%2Fresolver.kb.nl%2Fresolve%3Furn%3Durn%3Agvn%3AOHR01%3A0100%26size%3Dlarge&maxw=264" class="thumbnail__image browse-result__thumbnail__image lazyload" onerror="changeImageOnError2(this);" > ..." Line: 546 Column: 8 - 109
"..."> <img src="data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==" data-src="http://imageviewer.kb.nl/ImagingService/imagingService?useresolver=false&id=http%3A%2F%2Fresolver.kb.nl%2Fresolve%3Furn%3Durn%3Agvn%3AOHR01%3A0101%26size%3Dlarge&maxw=264" class="thumbnail__image browse-result__thumbnail__image lazyload" onerror="changeImageOnError2(this);" > ..." Line: 570 Column: 8 - 109
"..."> <img src="data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==" data-src="http://imageviewer.kb.nl/ImagingService/imagingService?useresolver=false&id=http%3A%2F%2Fresolver.kb.nl%2Fresolve%3Furn%3Durn%3Agvn%3AOHR01%3A0094%26size%3Dlarge&maxw=264" class="thumbnail__image browse-result__thumbnail__image lazyload" onerror="changeImageOnError2(this);" > ..." Line: 594 Column: 8 - 109
"..."> <img src="data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==" data-src="http://imageviewer.kb.nl/ImagingService/imagingService?useresolver=false&id=http%3A%2F%2Fresolver.kb.nl%2Fresolve%3Furn%3Durn%3Agvn%3APKL01%3AMM-11661%26size%3Dlarge&maxw=264" class="thumbnail__image browse-result__thumbnail__image lazyload" onerror="changeImageOnError2(this);" > ..." Line: 618 Column: 8 - 109
"..."> <img src="data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==" data-src="http://imageviewer.kb.nl/ImagingService/imagingService?useresolver=false&id=http%3A%2F%2Fresolver.kb.nl%2Fresolve%3Furn%3Durn%3Agvn%3APKL01%3AS-33-012%26size%3Dlarge&maxw=264" class="thumbnail__image browse-result__thumbnail__image lazyload" onerror="changeImageOnError2(this);" > ..." Line: 642 Column: 8 - 109
"..."> <img src="data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==" data-src="http://imageviewer.kb.nl/ImagingService/imagingService?useresolver=false&id=http%3A%2F%2Fresolver.kb.nl%2Fresolve%3Furn%3Durn%3Agvn%3APRB01%3A036190969%26size%3Dlarge&maxw=264" class="thumbnail__image browse-result__thumbnail__image lazyload" onerror="changeImageOnError2(this);" > ..." Line: 666 Column: 8 - 109
"..."> <img src="data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==" data-src="http://imageviewer.kb.nl/ImagingService/imagingService?useresolver=false&id=http%3A%2F%2Fresolver.kb.nl%2Fresolve%3Furn%3Durn%3Agvn%3APRB01%3A036780359%26size%3Dlarge&maxw=264" class="thumbnail__image browse-result__thumbnail__image lazyload" onerror="changeImageOnError2(this);" > ..." Line: 690 Column: 8 - 109
"..."> <img src="data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==" data-src="http://imageviewer.kb.nl/ImagingService/imagingService?useresolver=false&id=http%3A%2F%2Fresolver.kb.nl%2Fresolve%3Furn%3Durn%3Agvn%3APRB01%3A138465266%26size%3Dlarge&maxw=264" class="thumbnail__image browse-result__thumbnail__image lazyload" onerror="changeImageOnError2(this);" > ..." Line: 714 Column: 8 - 109
"..."> <img src="data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==" data-src="http://imageviewer.kb.nl/ImagingService/imagingService?useresolver=false&id=http%3A%2F%2Fresolver.kb.nl%2Fresolve%3Furn%3Durn%3Agvn%3APRB01%3A097275549%26size%3Dlarge&maxw=264" class="thumbnail__image browse-result__thumbnail__image lazyload" onerror="changeImageOnError2(this);" > ..." Line: 738 Column: 8 - 109
"..."> <img src="data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==" data-src="http://imageviewer.kb.nl/ImagingService/imagingService?useresolver=false&id=http%3A%2F%2Fresolver.kb.nl%2Fresolve%3Furn%3Durn%3Agvn%3APRB01%3A098276611%26size%3Dlarge&maxw=264" class="thumbnail__image browse-result__thumbnail__image lazyload" onerror="changeImageOnError2(this);" > ..." Line: 762 Column: 8 - 109
"..."> <img src="data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==" data-src="http://imageviewer.kb.nl/ImagingService/imagingService?useresolver=false&id=http%3A%2F%2Fresolver.kb.nl%2Fresolve%3Furn%3Durn%3Agvn%3APRB01%3A169392228%26size%3Dlarge&maxw=264" class="thumbnail__image browse-result__thumbnail__image lazyload" onerror="changeImageOnError2(this);" > ..." Line: 786 Column: 8 - 109
"..."> <img src="data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==" data-src="http://imageviewer.kb.nl/ImagingService/imagingService?useresolver=false&id=http%3A%2F%2Fresolver.kb.nl%2Fresolve%3Furn%3Durn%3Agvn%3APRB01%3A051559315%26size%3Dlarge&maxw=264" class="thumbnail__image browse-result__thumbnail__image lazyload" onerror="changeImageOnError2(this);" > ..." Line: 810 Column: 8 - 109
"..."> <img src="data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==" data-src="http://imageviewer.kb.nl/ImagingService/imagingService?useresolver=false&id=http%3A%2F%2Fresolver.kb.nl%2Fresolve%3Furn%3Durn%3Agvn%3APRB01%3A852520239%26size%3Dlarge&maxw=264" class="thumbnail__image browse-result__thumbnail__image lazyload" onerror="changeImageOnError2(this);" > ..." Line: 834 Column: 8 - 109
"..."> <img src="data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==" data-src="http://imageviewer.kb.nl/ImagingService/imagingService?useresolver=false&id=http%3A%2F%2Fresolver.kb.nl%2Fresolve%3Furn%3Durn%3Agvn%3APRB01%3A864257422%26size%3Dlarge&maxw=264" class="thumbnail__image browse-result__thumbnail__image lazyload" onerror="changeImageOnError2(this);" > ..." Line: 858 Column: 8 - 109
"..."> <img src="data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==" data-src="http://imageviewer.kb.nl/ImagingService/imagingService?useresolver=false&id=http%3A%2F%2Fresolver.kb.nl%2Fresolve%3Furn%3Durn%3Agvn%3APRB01%3A865843163%26size%3Dlarge&maxw=264" class="thumbnail__image browse-result__thumbnail__image lazyload" onerror="changeImageOnError2(this);" > ..." Line: 882 Column: 8 - 109
"..."> <img src="data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==" data-src="http://imageviewer.kb.nl/ImagingService/imagingService?useresolver=false&id=http%3A%2F%2Fresolver.kb.nl%2Fresolve%3Furn%3Durn%3Agvn%3ARAN01%3A11063%26size%3Dlarge&maxw=264" class="thumbnail__image browse-result__thumbnail__image lazyload" onerror="changeImageOnError2(this);" > ..." Line: 906 Column: 8 - 109
"..."> <img src="data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==" data-src="http://imageviewer.kb.nl/ImagingService/imagingService?useresolver=false&id=http%3A%2F%2Fresolver.kb.nl%2Fresolve%3Furn%3Durn%3Agvn%3ARAN01%3A20091%26size%3Dlarge&maxw=264" class="thumbnail__image browse-result__thumbnail__image lazyload" onerror="changeImageOnError2(this);" > ..." Line: 930 Column: 8 - 109
"..."> <img src="data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==" data-src="http://imageviewer.kb.nl/ImagingService/imagingService?useresolver=false&id=http%3A%2F%2Fresolver.kb.nl%2Fresolve%3Furn%3Durn%3Agvn%3ARAN01%3A20096%26size%3Dlarge&maxw=264" class="thumbnail__image browse-result__thumbnail__image lazyload" onerror="changeImageOnError2(this);" > ..." Line: 954 Column: 8 - 109
"..."> <img src="data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==" data-src="http://imageviewer.kb.nl/ImagingService/imagingService?useresolver=false&id=http%3A%2F%2Fresolver.kb.nl%2Fresolve%3Furn%3Durn%3Agvn%3ARDMZ01%3AOF-00006%26size%3Dlarge&maxw=264" class="thumbnail__image browse-result__thumbnail__image lazyload" onerror="changeImageOnError2(this);" > ..." Line: 978 Column: 8 - 109
"..."> <img src="data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==" data-src="http://imageviewer.kb.nl/ImagingService/imagingService?useresolver=false&id=http%3A%2F%2Fresolver.kb.nl%2Fresolve%3Furn%3Durn%3Agvn%3ARAN01%3A80002%26size%3Dlarge&maxw=264" class="thumbnail__image browse-result__thumbnail__image lazyload" onerror="changeImageOnError2(this);" > ..."

Warnings

Consider avoiding viewport values that prevent users from resizing documents.

Line: 13 Column: 3 - 90
"...utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=no"> <m..."

The “banner” role is unnecessary for element “header”.

Line: 32 Column: 1 - 96
"...ex="-1"> <header role="banner" id="top-bar" class="header " data-accessibility-content-type="non-static"> <a h..."

The “button” role is unnecessary for element “button”.

Line: 114 Column: 2 - 144
"...essage"> <button class="close-button notification__button-close button-icon-close" role="button" title="Sluit mededeling" aria-label="Sluit mededeling"></butt..."

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priority - 5Minify 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 50.4KiB (16% reduction).

priority - 4Minify 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 37.8KiB (21% reduction).

priority - 3Reduce server response time

In our test, your server responded in 0.40 seconds.

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 - 3Leverage 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 - 2Prioritize visible content

Your page requires additional network round trips to render the above-the-fold content. For best performance, reduce the amount of HTML needed to render above-the-fold content.

priority - 0Optimize images

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

Optimize the following images to reduce their size by 2.8KiB (13% 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 1.2KiB (13% reduction).

geheugenvannederland.nl Desktop Resource Breakdown

geheugenvannederland.nl mobile page speed rank

geheugenvannederland.nl Mobile Speed Test Quick Summary

priority - 88Enable 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 862.7KiB (77% reduction).

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

Your page has 6 blocking script resources and 1 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

Optimize CSS Delivery of the following:

priority - 10Avoid 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 - 8Prioritize visible content

Your page requires additional network round trips to render the above-the-fold content. For best performance, reduce the amount of HTML needed to render above-the-fold content.

priority - 5Minify 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 50.4KiB (16% reduction).

priority - 5Reduce server response time

In our test, your server responded in 0.39 seconds.

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.

Leverage browser caching for the following cacheable resources:

priority - 4Minify 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 37.8KiB (21% 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 1.2KiB (13% reduction).

priority - 0Optimize images

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

Optimize the following images to reduce their size by 876B (12% reduction).

geheugenvannederland.nl Mobile Resource Breakdown

geheugenvannederland.nl mobile page usability

geheugenvannederland.nl Mobile Usability Test Quick Summary

priority - 0Size 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.

geheugenvannederland.nl HTML validation

Errors

Bad value “0; url='/nl/geheugen/noscript'” for attribute “content” on element “meta”: Expected an unquoted IRI reference, but saw “'” instead.

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