iss.nl Website Information
Daily Unique Visits: 15,109
Daily Page Views: 90,654
Income Per Day: $181
Estimated Value: $130,320
This website is located in Netherlands and is using following IP address 145.5.1.13. See the complete list of popular websites hosted in Netherlands.
iss.nl is registered under .NL top-level domain. Please check other sites in .NL zone.
Website iss.nl is using the following name servers:
- ns2.surfnet.nl
- ns3.surfnet.nl
- ns1.zurich.surf.net
- ns1.surfnet.nl
and is probably hosted by SURFnet bv. See the full list of other websites hosted by SURFnet bv.
The highest website iss.nl position in Alexa rank database was 29393 and the lowest rank position was 997752. Current position of iss.nl in Alexa rank database is 94926.
Desktop speed score of iss.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 iss.nl (73/100) is better than the results of 22.71% of other sites and means that the page is not mobile-friendly.
Mobile speed score of iss.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.
Advertisement
iss.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.
iss.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: iss.nl
Status: active
Registrar:
SURF B.V.
Moreelsepark 48
3511EP Utrecht
Netherlands
Abuse Contact:
+31.887873000
cert@surfcert.nl
DNSSEC: yes
Domain nameservers:
ns2.surfnet.nl
ns3.surfnet.nl
ns1.zurich.surf.net
ns1.surfnet.nl
Creation Date: 1994-12-20
Updated Date: 2024-11-08
Record maintained by: SIDN BV
Status: active
Registrar:
SURF B.V.
Moreelsepark 48
3511EP Utrecht
Netherlands
Abuse Contact:
+31.887873000
cert@surfcert.nl
DNSSEC: yes
Domain nameservers:
ns2.surfnet.nl
ns3.surfnet.nl
ns1.zurich.surf.net
ns1.surfnet.nl
Creation Date: 1994-12-20
Updated Date: 2024-11-08
Record maintained by: SIDN BV
iss.nl server information
Servers Location
iss.nl desktop page speed rank
Last tested: 2017-05-27
Desktop Speed
Bad
45/100
iss.nl Desktop Speed Test Quick Summary
priority - 61Optimize images
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 597.4KiB (71% reduction).
Compressing https://www.iss.nl/uploads/tx_eurslider/Lustrum2017.jpg could save 377.8KiB (74% reduction).
Compressing https://www.iss.nl/uploads/tx_eurslider/Refresher_course_Tanzania_4.jpg could save 167.9KiB (70% reduction).
Compressing https://www.iss.nl/uploads/tx_eurslider/DD15__002_.jpg could save 50.4KiB (55% reduction).
Compressing https://www.iss.nl/fileadmin/templates/fabrique/img/logo.png could save 1.2KiB (42% reduction).
Compressing https://www.iss.nl/uploads/tx_eurslider/Refresher_course_Tanzania_4.jpg could save 167.9KiB (70% reduction).
Compressing https://www.iss.nl/uploads/tx_eurslider/DD15__002_.jpg could save 50.4KiB (55% reduction).
Compressing https://www.iss.nl/fileadmin/templates/fabrique/img/logo.png could save 1.2KiB (42% reduction).
priority - 38Enable 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 365.9KiB (76% reduction).
Compressing https://www.iss.nl/fileadmin/templates/fabrique/default.css could save 90.1KiB (85% reduction).
Compressing https://www.iss.nl/fileadmin/templates/jquery/jquery-1.11.1.min.js could save 61.1KiB (65% reduction).
Compressing https://www.iss.nl/fileadmin/templates/fabrique/js/bootstrap.js could save 42.9KiB (79% reduction).
Compressing https://www.iss.nl/ could save 35.5KiB (78% reduction).
Compressing https://www.iss.nl/fileadmin/templates/fabrique/css/glyphicons.css could save 30.4KiB (80% reduction).
Compressing https://www.iss.nl/fileadmin/templates/jqueryui/jq…i-1.11.4.custom.min.js could save 22.8KiB (68% reduction).
Compressing https://www.iss.nl/fileadmin/templates/fabrique/css/extensions.css could save 15.1KiB (80% reduction).
Compressing https://www.iss.nl/typo3conf/ext/cookie_control/pi…okieControl-5.0.min.js could save 15.1KiB (78% reduction).
Compressing https://www.iss.nl/fileadmin/templates/fabrique/js/modernizr.js could save 8.5KiB (59% reduction).
Compressing https://www.iss.nl/fileadmin/templates/fabrique/fabrique.css could save 8.3KiB (77% reduction).
Compressing https://www.iss.nl/fileadmin/templates/fabrique/css/wrapper.css could save 5.9KiB (76% reduction).
Compressing https://www.iss.nl/typo3temp/stylesheet_65fc559049.css?1495084829 could save 5.6KiB (79% reduction).
Compressing https://www.iss.nl/fileadmin/templates/fabrique/css/museo-sans.css could save 5.2KiB (90% reduction).
Compressing https://www.iss.nl/fileadmin/templates/fabrique/css/ub.css could save 4.9KiB (75% reduction).
Compressing https://www.iss.nl/fileadmin/templates/fabrique/css/gsa.css could save 4.8KiB (75% reduction).
Compressing https://www.iss.nl/fileadmin/templates/fabrique/css/glyphicons-social.css could save 3.1KiB (78% reduction).
Compressing https://www.iss.nl/fileadmin/templates/fabrique/js/dropdown-hover.js could save 2.9KiB (68% reduction).
Compressing https://www.iss.nl/typo3conf/ext/cookie_control/pi…okie_control-plugin.js could save 1.1KiB (69% reduction).
Compressing https://www.iss.nl/typo3conf/ext/eur_google2/res/js/autocomplete-sidebar.js could save 932B (60% reduction).
Compressing https://www.iss.nl/typo3conf/ext/eur_google2/res/js/autocomplete-toolbar.js could save 932B (60% reduction).
Compressing https://www.iss.nl/fileadmin/templates/fabrique/style/iss/style.css could save 652B (60% reduction).
Compressing https://www.iss.nl/fileadmin/templates/jquery/jquery-1.11.1.min.js could save 61.1KiB (65% reduction).
Compressing https://www.iss.nl/fileadmin/templates/fabrique/js/bootstrap.js could save 42.9KiB (79% reduction).
Compressing https://www.iss.nl/ could save 35.5KiB (78% reduction).
Compressing https://www.iss.nl/fileadmin/templates/fabrique/css/glyphicons.css could save 30.4KiB (80% reduction).
Compressing https://www.iss.nl/fileadmin/templates/jqueryui/jq…i-1.11.4.custom.min.js could save 22.8KiB (68% reduction).
Compressing https://www.iss.nl/fileadmin/templates/fabrique/css/extensions.css could save 15.1KiB (80% reduction).
Compressing https://www.iss.nl/typo3conf/ext/cookie_control/pi…okieControl-5.0.min.js could save 15.1KiB (78% reduction).
Compressing https://www.iss.nl/fileadmin/templates/fabrique/js/modernizr.js could save 8.5KiB (59% reduction).
Compressing https://www.iss.nl/fileadmin/templates/fabrique/fabrique.css could save 8.3KiB (77% reduction).
Compressing https://www.iss.nl/fileadmin/templates/fabrique/css/wrapper.css could save 5.9KiB (76% reduction).
Compressing https://www.iss.nl/typo3temp/stylesheet_65fc559049.css?1495084829 could save 5.6KiB (79% reduction).
Compressing https://www.iss.nl/fileadmin/templates/fabrique/css/museo-sans.css could save 5.2KiB (90% reduction).
Compressing https://www.iss.nl/fileadmin/templates/fabrique/css/ub.css could save 4.9KiB (75% reduction).
Compressing https://www.iss.nl/fileadmin/templates/fabrique/css/gsa.css could save 4.8KiB (75% reduction).
Compressing https://www.iss.nl/fileadmin/templates/fabrique/css/glyphicons-social.css could save 3.1KiB (78% reduction).
Compressing https://www.iss.nl/fileadmin/templates/fabrique/js/dropdown-hover.js could save 2.9KiB (68% reduction).
Compressing https://www.iss.nl/typo3conf/ext/cookie_control/pi…okie_control-plugin.js could save 1.1KiB (69% reduction).
Compressing https://www.iss.nl/typo3conf/ext/eur_google2/res/js/autocomplete-sidebar.js could save 932B (60% reduction).
Compressing https://www.iss.nl/typo3conf/ext/eur_google2/res/js/autocomplete-toolbar.js could save 932B (60% reduction).
Compressing https://www.iss.nl/fileadmin/templates/fabrique/style/iss/style.css could save 652B (60% reduction).
priority - 16Leverage 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.iss.nl/fileadmin/templates/fabrique/css/extensions.css (expiration not specified)
https://www.iss.nl/fileadmin/templates/fabrique/css/glyphicons-social.css (expiration not specified)
https://www.iss.nl/fileadmin/templates/fabrique/css/glyphicons.css (expiration not specified)
https://www.iss.nl/fileadmin/templates/fabrique/css/gsa.css (expiration not specified)
https://www.iss.nl/fileadmin/templates/fabrique/css/museo-sans.css (expiration not specified)
https://www.iss.nl/fileadmin/templates/fabrique/css/print.css (expiration not specified)
https://www.iss.nl/fileadmin/templates/fabrique/css/ub.css (expiration not specified)
https://www.iss.nl/fileadmin/templates/fabrique/css/wrapper.css (expiration not specified)
https://www.iss.nl/fileadmin/templates/fabrique/default.css (expiration not specified)
https://www.iss.nl/fileadmin/templates/fabrique/fabrique.css (expiration not specified)
https://www.iss.nl/fileadmin/templates/fabrique/img/logo.png (expiration not specified)
https://www.iss.nl/fileadmin/templates/fabrique/js/bootstrap.js (expiration not specified)
https://www.iss.nl/fileadmin/templates/fabrique/js/dropdown-hover.js (expiration not specified)
https://www.iss.nl/fileadmin/templates/fabrique/js/modernizr.js (expiration not specified)
https://www.iss.nl/fileadmin/templates/fabrique/js/placeholder.js (expiration not specified)
https://www.iss.nl/fileadmin/templates/fabrique/style/iss/body.png (expiration not specified)
https://www.iss.nl/fileadmin/templates/fabrique/style/iss/style.css (expiration not specified)
https://www.iss.nl/fileadmin/templates/fabrique/style/woordmerk.css (expiration not specified)
https://www.iss.nl/fileadmin/templates/jquery/jquery-1.11.1.min.js (expiration not specified)
https://www.iss.nl/fileadmin/templates/jqueryui/jq…i-1.11.4.custom.min.js (expiration not specified)
https://www.iss.nl/typo3conf/ext/cookie_control/pi1/res/css/default.css (expiration not specified)
https://www.iss.nl/typo3conf/ext/cookie_control/pi…okieControl-5.0.min.js (expiration not specified)
https://www.iss.nl/typo3conf/ext/cookie_control/pi…okie_control-plugin.js (expiration not specified)
https://www.iss.nl/typo3conf/ext/eur_google2/res/js/autocomplete-sidebar.js (expiration not specified)
https://www.iss.nl/typo3conf/ext/eur_google2/res/js/autocomplete-toolbar.js (expiration not specified)
https://www.iss.nl/uploads/tx_eurslider/DD15__002_.jpg (expiration not specified)
https://www.iss.nl/uploads/tx_eurslider/Lustrum2017.jpg (expiration not specified)
https://www.iss.nl/uploads/tx_eurslider/Refresher_course_Tanzania_4.jpg (expiration not specified)
https://www.googletagmanager.com/gtm.js?id=GTM-KX42DT (15 minutes)
https://www.google-analytics.com/plugins/ua/linkid.js (60 minutes)
https://ssl.google-analytics.com/ga.js (2 hours)
https://ssl.siteimprove.com/js/siteanalyze_6005652.js (2 hours)
https://www.google-analytics.com/analytics.js (2 hours)
https://www.iss.nl/fileadmin/templates/fabrique/css/glyphicons-social.css (expiration not specified)
https://www.iss.nl/fileadmin/templates/fabrique/css/glyphicons.css (expiration not specified)
https://www.iss.nl/fileadmin/templates/fabrique/css/gsa.css (expiration not specified)
https://www.iss.nl/fileadmin/templates/fabrique/css/museo-sans.css (expiration not specified)
https://www.iss.nl/fileadmin/templates/fabrique/css/print.css (expiration not specified)
https://www.iss.nl/fileadmin/templates/fabrique/css/ub.css (expiration not specified)
https://www.iss.nl/fileadmin/templates/fabrique/css/wrapper.css (expiration not specified)
https://www.iss.nl/fileadmin/templates/fabrique/default.css (expiration not specified)
https://www.iss.nl/fileadmin/templates/fabrique/fabrique.css (expiration not specified)
https://www.iss.nl/fileadmin/templates/fabrique/img/logo.png (expiration not specified)
https://www.iss.nl/fileadmin/templates/fabrique/js/bootstrap.js (expiration not specified)
https://www.iss.nl/fileadmin/templates/fabrique/js/dropdown-hover.js (expiration not specified)
https://www.iss.nl/fileadmin/templates/fabrique/js/modernizr.js (expiration not specified)
https://www.iss.nl/fileadmin/templates/fabrique/js/placeholder.js (expiration not specified)
https://www.iss.nl/fileadmin/templates/fabrique/style/iss/body.png (expiration not specified)
https://www.iss.nl/fileadmin/templates/fabrique/style/iss/style.css (expiration not specified)
https://www.iss.nl/fileadmin/templates/fabrique/style/woordmerk.css (expiration not specified)
https://www.iss.nl/fileadmin/templates/jquery/jquery-1.11.1.min.js (expiration not specified)
https://www.iss.nl/fileadmin/templates/jqueryui/jq…i-1.11.4.custom.min.js (expiration not specified)
https://www.iss.nl/typo3conf/ext/cookie_control/pi1/res/css/default.css (expiration not specified)
https://www.iss.nl/typo3conf/ext/cookie_control/pi…okieControl-5.0.min.js (expiration not specified)
https://www.iss.nl/typo3conf/ext/cookie_control/pi…okie_control-plugin.js (expiration not specified)
https://www.iss.nl/typo3conf/ext/eur_google2/res/js/autocomplete-sidebar.js (expiration not specified)
https://www.iss.nl/typo3conf/ext/eur_google2/res/js/autocomplete-toolbar.js (expiration not specified)
https://www.iss.nl/uploads/tx_eurslider/DD15__002_.jpg (expiration not specified)
https://www.iss.nl/uploads/tx_eurslider/Lustrum2017.jpg (expiration not specified)
https://www.iss.nl/uploads/tx_eurslider/Refresher_course_Tanzania_4.jpg (expiration not specified)
https://www.googletagmanager.com/gtm.js?id=GTM-KX42DT (15 minutes)
https://www.google-analytics.com/plugins/ua/linkid.js (60 minutes)
https://ssl.google-analytics.com/ga.js (2 hours)
https://ssl.siteimprove.com/js/siteanalyze_6005652.js (2 hours)
https://www.google-analytics.com/analytics.js (2 hours)
priority - 14Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 6 blocking script resources and 15 blocking CSS resources. This causes a delay in rendering your page.
Remove render-blocking JavaScript:
https://www.iss.nl/typo3temp/javascript_a1cb3a5978.js?1495084829
https://www.iss.nl/fileadmin/templates/jquery/jquery-1.11.1.min.js
https://www.iss.nl/fileadmin/templates/jqueryui/jq…i-1.11.4.custom.min.js
https://www.iss.nl/typo3conf/ext/cookie_control/pi…okieControl-5.0.min.js
https://www.iss.nl/typo3conf/ext/cookie_control/pi…okie_control-plugin.js
https://www.iss.nl/fileadmin/templates/fabrique/js/modernizr.js
https://www.iss.nl/fileadmin/templates/jquery/jquery-1.11.1.min.js
https://www.iss.nl/fileadmin/templates/jqueryui/jq…i-1.11.4.custom.min.js
https://www.iss.nl/typo3conf/ext/cookie_control/pi…okieControl-5.0.min.js
https://www.iss.nl/typo3conf/ext/cookie_control/pi…okie_control-plugin.js
https://www.iss.nl/fileadmin/templates/fabrique/js/modernizr.js
Optimize CSS Delivery of the following:
https://www.iss.nl/typo3temp/stylesheet_65fc559049.css?1495084829
https://www.iss.nl/typo3conf/ext/eur_welcome2eur/r…s/style.css?1495084817
https://www.iss.nl/typo3conf/ext/cookie_control/pi1/res/css/default.css
https://www.iss.nl/fileadmin/templates/fabrique/default.css
https://www.iss.nl/fileadmin/templates/fabrique/fabrique.css
https://www.iss.nl/fileadmin/templates/fabrique/css/glyphicons.css
https://www.iss.nl/fileadmin/templates/fabrique/css/glyphicons-social.css
https://www.iss.nl/fileadmin/templates/fabrique/css/museo-sans.css
https://www.iss.nl/fileadmin/templates/fabrique/css/wrapper.css
https://www.iss.nl/fileadmin/templates/fabrique/css/extensions.css
https://www.iss.nl/fileadmin/templates/fabrique/css/gsa.css
https://www.iss.nl/fileadmin/templates/fabrique/css/ub.css
https://www.iss.nl/fileadmin/templates/fabrique/css/print.css
https://www.iss.nl/fileadmin/templates/fabrique/style/iss/style.css
https://www.iss.nl/fileadmin/templates/fabrique/style/woordmerk.css
https://www.iss.nl/typo3conf/ext/eur_welcome2eur/r…s/style.css?1495084817
https://www.iss.nl/typo3conf/ext/cookie_control/pi1/res/css/default.css
https://www.iss.nl/fileadmin/templates/fabrique/default.css
https://www.iss.nl/fileadmin/templates/fabrique/fabrique.css
https://www.iss.nl/fileadmin/templates/fabrique/css/glyphicons.css
https://www.iss.nl/fileadmin/templates/fabrique/css/glyphicons-social.css
https://www.iss.nl/fileadmin/templates/fabrique/css/museo-sans.css
https://www.iss.nl/fileadmin/templates/fabrique/css/wrapper.css
https://www.iss.nl/fileadmin/templates/fabrique/css/extensions.css
https://www.iss.nl/fileadmin/templates/fabrique/css/gsa.css
https://www.iss.nl/fileadmin/templates/fabrique/css/ub.css
https://www.iss.nl/fileadmin/templates/fabrique/css/print.css
https://www.iss.nl/fileadmin/templates/fabrique/style/iss/style.css
https://www.iss.nl/fileadmin/templates/fabrique/style/woordmerk.css
priority - 3Minify 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 30.7KiB (18% reduction).
Minifying https://www.iss.nl/fileadmin/templates/fabrique/default.css could save 16.1KiB (16% reduction).
Minifying https://www.iss.nl/fileadmin/templates/fabrique/css/extensions.css could save 3.4KiB (19% reduction).
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Minifying https://www.iss.nl/fileadmin/templates/fabrique/css/museo-sans.css could save 1.7KiB (29% reduction).
Minifying https://www.iss.nl/fileadmin/templates/fabrique/css/gsa.css could save 1.3KiB (21% reduction).
Minifying https://www.iss.nl/fileadmin/templates/fabrique/css/ub.css could save 1.3KiB (20% reduction).
Minifying https://www.iss.nl/fileadmin/templates/fabrique/css/glyphicons-social.css could save 820B (21% reduction).
Minifying https://www.iss.nl/fileadmin/templates/fabrique/style/iss/style.css could save 528B (49% reduction).
Minifying https://www.iss.nl/fileadmin/templates/fabrique/css/extensions.css could save 3.4KiB (19% reduction).
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Minifying https://www.iss.nl/typo3temp/stylesheet_65fc559049.css?1495084829 could save 1.9KiB (28% reduction).
Minifying https://www.iss.nl/fileadmin/templates/fabrique/css/wrapper.css could save 1.7KiB (22% reduction).
Minifying https://www.iss.nl/fileadmin/templates/fabrique/css/museo-sans.css could save 1.7KiB (29% reduction).
Minifying https://www.iss.nl/fileadmin/templates/fabrique/css/gsa.css could save 1.3KiB (21% reduction).
Minifying https://www.iss.nl/fileadmin/templates/fabrique/css/ub.css could save 1.3KiB (20% reduction).
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Minifying https://www.iss.nl/fileadmin/templates/fabrique/style/iss/style.css could save 528B (49% reduction).
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 28.5KiB (35% reduction).
Minifying https://www.iss.nl/fileadmin/templates/fabrique/js/bootstrap.js could save 18.4KiB (35% reduction).
Minifying https://www.iss.nl/typo3conf/ext/cookie_control/pi…okieControl-5.0.min.js could save 5KiB (27% reduction).
Minifying https://www.iss.nl/fileadmin/templates/fabrique/js/dropdown-hover.js could save 2.7KiB (64% reduction).
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Minifying https://www.iss.nl/fileadmin/templates/fabrique/js/dropdown-hover.js could save 2.7KiB (64% reduction).
Minifying https://www.iss.nl/typo3conf/ext/cookie_control/pi…okie_control-plugin.js could save 1KiB (64% reduction).
Minifying https://www.iss.nl/typo3conf/ext/eur_google2/res/js/autocomplete-sidebar.js could save 678B (44% reduction).
Minifying https://www.iss.nl/typo3conf/ext/eur_google2/res/js/autocomplete-toolbar.js could save 678B (44% reduction).
iss.nl Desktop Resource Breakdown
| Total Resources | 51 |
| Number of Hosts | 8 |
| Static Resources | 33 |
| JavaScript Resources | 16 |
| CSS Resources | 15 |
iss.nl mobile page speed rank
Last tested: 2017-05-27
Mobile Speed
Bad
37/100
iss.nl Mobile Speed Test Quick Summary
priority - 61Optimize images
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 597.4KiB (71% reduction).
Compressing https://www.iss.nl/uploads/tx_eurslider/Lustrum2017.jpg could save 377.8KiB (74% reduction).
Compressing https://www.iss.nl/uploads/tx_eurslider/Refresher_course_Tanzania_4.jpg could save 167.9KiB (70% reduction).
Compressing https://www.iss.nl/uploads/tx_eurslider/DD15__002_.jpg could save 50.4KiB (55% reduction).
Compressing https://www.iss.nl/fileadmin/templates/fabrique/img/logo.png could save 1.2KiB (42% reduction).
Compressing https://www.iss.nl/uploads/tx_eurslider/Refresher_course_Tanzania_4.jpg could save 167.9KiB (70% reduction).
Compressing https://www.iss.nl/uploads/tx_eurslider/DD15__002_.jpg could save 50.4KiB (55% reduction).
Compressing https://www.iss.nl/fileadmin/templates/fabrique/img/logo.png could save 1.2KiB (42% reduction).
priority - 56Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 6 blocking script resources and 15 blocking CSS resources. This causes a delay in rendering your page.
Remove render-blocking JavaScript:
https://www.iss.nl/typo3temp/javascript_a1cb3a5978.js?1495084829
https://www.iss.nl/fileadmin/templates/jquery/jquery-1.11.1.min.js
https://www.iss.nl/fileadmin/templates/jqueryui/jq…i-1.11.4.custom.min.js
https://www.iss.nl/typo3conf/ext/cookie_control/pi…okieControl-5.0.min.js
https://www.iss.nl/typo3conf/ext/cookie_control/pi…okie_control-plugin.js
https://www.iss.nl/fileadmin/templates/fabrique/js/modernizr.js
https://www.iss.nl/fileadmin/templates/jquery/jquery-1.11.1.min.js
https://www.iss.nl/fileadmin/templates/jqueryui/jq…i-1.11.4.custom.min.js
https://www.iss.nl/typo3conf/ext/cookie_control/pi…okieControl-5.0.min.js
https://www.iss.nl/typo3conf/ext/cookie_control/pi…okie_control-plugin.js
https://www.iss.nl/fileadmin/templates/fabrique/js/modernizr.js
Optimize CSS Delivery of the following:
https://www.iss.nl/typo3temp/stylesheet_65fc559049.css?1495084829
https://www.iss.nl/typo3conf/ext/eur_welcome2eur/r…s/style.css?1495084817
https://www.iss.nl/typo3conf/ext/cookie_control/pi1/res/css/default.css
https://www.iss.nl/fileadmin/templates/fabrique/default.css
https://www.iss.nl/fileadmin/templates/fabrique/fabrique.css
https://www.iss.nl/fileadmin/templates/fabrique/css/glyphicons.css
https://www.iss.nl/fileadmin/templates/fabrique/css/glyphicons-social.css
https://www.iss.nl/fileadmin/templates/fabrique/css/museo-sans.css
https://www.iss.nl/fileadmin/templates/fabrique/css/wrapper.css
https://www.iss.nl/fileadmin/templates/fabrique/css/extensions.css
https://www.iss.nl/fileadmin/templates/fabrique/css/gsa.css
https://www.iss.nl/fileadmin/templates/fabrique/css/ub.css
https://www.iss.nl/fileadmin/templates/fabrique/css/print.css
https://www.iss.nl/fileadmin/templates/fabrique/style/iss/style.css
https://www.iss.nl/fileadmin/templates/fabrique/style/woordmerk.css
https://www.iss.nl/typo3conf/ext/eur_welcome2eur/r…s/style.css?1495084817
https://www.iss.nl/typo3conf/ext/cookie_control/pi1/res/css/default.css
https://www.iss.nl/fileadmin/templates/fabrique/default.css
https://www.iss.nl/fileadmin/templates/fabrique/fabrique.css
https://www.iss.nl/fileadmin/templates/fabrique/css/glyphicons.css
https://www.iss.nl/fileadmin/templates/fabrique/css/glyphicons-social.css
https://www.iss.nl/fileadmin/templates/fabrique/css/museo-sans.css
https://www.iss.nl/fileadmin/templates/fabrique/css/wrapper.css
https://www.iss.nl/fileadmin/templates/fabrique/css/extensions.css
https://www.iss.nl/fileadmin/templates/fabrique/css/gsa.css
https://www.iss.nl/fileadmin/templates/fabrique/css/ub.css
https://www.iss.nl/fileadmin/templates/fabrique/css/print.css
https://www.iss.nl/fileadmin/templates/fabrique/style/iss/style.css
https://www.iss.nl/fileadmin/templates/fabrique/style/woordmerk.css
priority - 38Enable 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 365.9KiB (76% reduction).
Compressing https://www.iss.nl/fileadmin/templates/fabrique/default.css could save 90.1KiB (85% reduction).
Compressing https://www.iss.nl/fileadmin/templates/jquery/jquery-1.11.1.min.js could save 61.1KiB (65% reduction).
Compressing https://www.iss.nl/fileadmin/templates/fabrique/js/bootstrap.js could save 42.9KiB (79% reduction).
Compressing https://www.iss.nl/ could save 35.5KiB (78% reduction).
Compressing https://www.iss.nl/fileadmin/templates/fabrique/css/glyphicons.css could save 30.4KiB (80% reduction).
Compressing https://www.iss.nl/fileadmin/templates/jqueryui/jq…i-1.11.4.custom.min.js could save 22.8KiB (68% reduction).
Compressing https://www.iss.nl/fileadmin/templates/fabrique/css/extensions.css could save 15.1KiB (80% reduction).
Compressing https://www.iss.nl/typo3conf/ext/cookie_control/pi…okieControl-5.0.min.js could save 15.1KiB (78% reduction).
Compressing https://www.iss.nl/fileadmin/templates/fabrique/js/modernizr.js could save 8.5KiB (59% reduction).
Compressing https://www.iss.nl/fileadmin/templates/fabrique/fabrique.css could save 8.3KiB (77% reduction).
Compressing https://www.iss.nl/fileadmin/templates/fabrique/css/wrapper.css could save 5.9KiB (76% reduction).
Compressing https://www.iss.nl/typo3temp/stylesheet_65fc559049.css?1495084829 could save 5.6KiB (79% reduction).
Compressing https://www.iss.nl/fileadmin/templates/fabrique/css/museo-sans.css could save 5.2KiB (90% reduction).
Compressing https://www.iss.nl/fileadmin/templates/fabrique/css/ub.css could save 4.9KiB (75% reduction).
Compressing https://www.iss.nl/fileadmin/templates/fabrique/css/gsa.css could save 4.8KiB (75% reduction).
Compressing https://www.iss.nl/fileadmin/templates/fabrique/css/glyphicons-social.css could save 3.1KiB (78% reduction).
Compressing https://www.iss.nl/fileadmin/templates/fabrique/js/dropdown-hover.js could save 2.9KiB (68% reduction).
Compressing https://www.iss.nl/typo3conf/ext/cookie_control/pi…okie_control-plugin.js could save 1.1KiB (69% reduction).
Compressing https://www.iss.nl/typo3conf/ext/eur_google2/res/js/autocomplete-sidebar.js could save 932B (60% reduction).
Compressing https://www.iss.nl/typo3conf/ext/eur_google2/res/js/autocomplete-toolbar.js could save 932B (60% reduction).
Compressing https://www.iss.nl/fileadmin/templates/fabrique/style/iss/style.css could save 652B (60% reduction).
Compressing https://www.iss.nl/fileadmin/templates/jquery/jquery-1.11.1.min.js could save 61.1KiB (65% reduction).
Compressing https://www.iss.nl/fileadmin/templates/fabrique/js/bootstrap.js could save 42.9KiB (79% reduction).
Compressing https://www.iss.nl/ could save 35.5KiB (78% reduction).
Compressing https://www.iss.nl/fileadmin/templates/fabrique/css/glyphicons.css could save 30.4KiB (80% reduction).
Compressing https://www.iss.nl/fileadmin/templates/jqueryui/jq…i-1.11.4.custom.min.js could save 22.8KiB (68% reduction).
Compressing https://www.iss.nl/fileadmin/templates/fabrique/css/extensions.css could save 15.1KiB (80% reduction).
Compressing https://www.iss.nl/typo3conf/ext/cookie_control/pi…okieControl-5.0.min.js could save 15.1KiB (78% reduction).
Compressing https://www.iss.nl/fileadmin/templates/fabrique/js/modernizr.js could save 8.5KiB (59% reduction).
Compressing https://www.iss.nl/fileadmin/templates/fabrique/fabrique.css could save 8.3KiB (77% reduction).
Compressing https://www.iss.nl/fileadmin/templates/fabrique/css/wrapper.css could save 5.9KiB (76% reduction).
Compressing https://www.iss.nl/typo3temp/stylesheet_65fc559049.css?1495084829 could save 5.6KiB (79% reduction).
Compressing https://www.iss.nl/fileadmin/templates/fabrique/css/museo-sans.css could save 5.2KiB (90% reduction).
Compressing https://www.iss.nl/fileadmin/templates/fabrique/css/ub.css could save 4.9KiB (75% reduction).
Compressing https://www.iss.nl/fileadmin/templates/fabrique/css/gsa.css could save 4.8KiB (75% reduction).
Compressing https://www.iss.nl/fileadmin/templates/fabrique/css/glyphicons-social.css could save 3.1KiB (78% reduction).
Compressing https://www.iss.nl/fileadmin/templates/fabrique/js/dropdown-hover.js could save 2.9KiB (68% reduction).
Compressing https://www.iss.nl/typo3conf/ext/cookie_control/pi…okie_control-plugin.js could save 1.1KiB (69% reduction).
Compressing https://www.iss.nl/typo3conf/ext/eur_google2/res/js/autocomplete-sidebar.js could save 932B (60% reduction).
Compressing https://www.iss.nl/typo3conf/ext/eur_google2/res/js/autocomplete-toolbar.js could save 932B (60% reduction).
Compressing https://www.iss.nl/fileadmin/templates/fabrique/style/iss/style.css could save 652B (60% reduction).
priority - 24Leverage 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.iss.nl/fileadmin/templates/fabrique/css/extensions.css (expiration not specified)
https://www.iss.nl/fileadmin/templates/fabrique/css/glyphicons-social.css (expiration not specified)
https://www.iss.nl/fileadmin/templates/fabrique/css/glyphicons.css (expiration not specified)
https://www.iss.nl/fileadmin/templates/fabrique/css/gsa.css (expiration not specified)
https://www.iss.nl/fileadmin/templates/fabrique/css/museo-sans.css (expiration not specified)
https://www.iss.nl/fileadmin/templates/fabrique/css/print.css (expiration not specified)
https://www.iss.nl/fileadmin/templates/fabrique/css/ub.css (expiration not specified)
https://www.iss.nl/fileadmin/templates/fabrique/css/wrapper.css (expiration not specified)
https://www.iss.nl/fileadmin/templates/fabrique/default.css (expiration not specified)
https://www.iss.nl/fileadmin/templates/fabrique/fabrique.css (expiration not specified)
https://www.iss.nl/fileadmin/templates/fabrique/img/logo.png (expiration not specified)
https://www.iss.nl/fileadmin/templates/fabrique/js/bootstrap.js (expiration not specified)
https://www.iss.nl/fileadmin/templates/fabrique/js/dropdown-hover.js (expiration not specified)
https://www.iss.nl/fileadmin/templates/fabrique/js/modernizr.js (expiration not specified)
https://www.iss.nl/fileadmin/templates/fabrique/js/placeholder.js (expiration not specified)
https://www.iss.nl/fileadmin/templates/fabrique/style/iss/body.png (expiration not specified)
https://www.iss.nl/fileadmin/templates/fabrique/style/iss/style.css (expiration not specified)
https://www.iss.nl/fileadmin/templates/fabrique/style/woordmerk.css (expiration not specified)
https://www.iss.nl/fileadmin/templates/jquery/jquery-1.11.1.min.js (expiration not specified)
https://www.iss.nl/fileadmin/templates/jqueryui/jq…i-1.11.4.custom.min.js (expiration not specified)
https://www.iss.nl/typo3conf/ext/cookie_control/pi1/res/css/default.css (expiration not specified)
https://www.iss.nl/typo3conf/ext/cookie_control/pi…okieControl-5.0.min.js (expiration not specified)
https://www.iss.nl/typo3conf/ext/cookie_control/pi…okie_control-plugin.js (expiration not specified)
https://www.iss.nl/typo3conf/ext/eur_google2/res/js/autocomplete-sidebar.js (expiration not specified)
https://www.iss.nl/typo3conf/ext/eur_google2/res/js/autocomplete-toolbar.js (expiration not specified)
https://www.iss.nl/uploads/tx_eurslider/DD15__002_.jpg (expiration not specified)
https://www.iss.nl/uploads/tx_eurslider/Lustrum2017.jpg (expiration not specified)
https://www.iss.nl/uploads/tx_eurslider/Refresher_course_Tanzania_4.jpg (expiration not specified)
https://www.googletagmanager.com/gtm.js?id=GTM-KX42DT (15 minutes)
https://www.google-analytics.com/plugins/ua/linkid.js (60 minutes)
https://ssl.google-analytics.com/ga.js (2 hours)
https://ssl.siteimprove.com/js/siteanalyze_6005652.js (2 hours)
https://www.google-analytics.com/analytics.js (2 hours)
https://www.iss.nl/fileadmin/templates/fabrique/css/glyphicons-social.css (expiration not specified)
https://www.iss.nl/fileadmin/templates/fabrique/css/glyphicons.css (expiration not specified)
https://www.iss.nl/fileadmin/templates/fabrique/css/gsa.css (expiration not specified)
https://www.iss.nl/fileadmin/templates/fabrique/css/museo-sans.css (expiration not specified)
https://www.iss.nl/fileadmin/templates/fabrique/css/print.css (expiration not specified)
https://www.iss.nl/fileadmin/templates/fabrique/css/ub.css (expiration not specified)
https://www.iss.nl/fileadmin/templates/fabrique/css/wrapper.css (expiration not specified)
https://www.iss.nl/fileadmin/templates/fabrique/default.css (expiration not specified)
https://www.iss.nl/fileadmin/templates/fabrique/fabrique.css (expiration not specified)
https://www.iss.nl/fileadmin/templates/fabrique/img/logo.png (expiration not specified)
https://www.iss.nl/fileadmin/templates/fabrique/js/bootstrap.js (expiration not specified)
https://www.iss.nl/fileadmin/templates/fabrique/js/dropdown-hover.js (expiration not specified)
https://www.iss.nl/fileadmin/templates/fabrique/js/modernizr.js (expiration not specified)
https://www.iss.nl/fileadmin/templates/fabrique/js/placeholder.js (expiration not specified)
https://www.iss.nl/fileadmin/templates/fabrique/style/iss/body.png (expiration not specified)
https://www.iss.nl/fileadmin/templates/fabrique/style/iss/style.css (expiration not specified)
https://www.iss.nl/fileadmin/templates/fabrique/style/woordmerk.css (expiration not specified)
https://www.iss.nl/fileadmin/templates/jquery/jquery-1.11.1.min.js (expiration not specified)
https://www.iss.nl/fileadmin/templates/jqueryui/jq…i-1.11.4.custom.min.js (expiration not specified)
https://www.iss.nl/typo3conf/ext/cookie_control/pi1/res/css/default.css (expiration not specified)
https://www.iss.nl/typo3conf/ext/cookie_control/pi…okieControl-5.0.min.js (expiration not specified)
https://www.iss.nl/typo3conf/ext/cookie_control/pi…okie_control-plugin.js (expiration not specified)
https://www.iss.nl/typo3conf/ext/eur_google2/res/js/autocomplete-sidebar.js (expiration not specified)
https://www.iss.nl/typo3conf/ext/eur_google2/res/js/autocomplete-toolbar.js (expiration not specified)
https://www.iss.nl/uploads/tx_eurslider/DD15__002_.jpg (expiration not specified)
https://www.iss.nl/uploads/tx_eurslider/Lustrum2017.jpg (expiration not specified)
https://www.iss.nl/uploads/tx_eurslider/Refresher_course_Tanzania_4.jpg (expiration not specified)
https://www.googletagmanager.com/gtm.js?id=GTM-KX42DT (15 minutes)
https://www.google-analytics.com/plugins/ua/linkid.js (60 minutes)
https://ssl.google-analytics.com/ga.js (2 hours)
https://ssl.siteimprove.com/js/siteanalyze_6005652.js (2 hours)
https://www.google-analytics.com/analytics.js (2 hours)
priority - 3Minify 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 30.7KiB (18% reduction).
Minifying https://www.iss.nl/fileadmin/templates/fabrique/default.css could save 16.1KiB (16% reduction).
Minifying https://www.iss.nl/fileadmin/templates/fabrique/css/extensions.css could save 3.4KiB (19% reduction).
Minifying https://www.iss.nl/fileadmin/templates/fabrique/fabrique.css could save 2KiB (19% reduction).
Minifying https://www.iss.nl/typo3temp/stylesheet_65fc559049.css?1495084829 could save 1.9KiB (28% reduction).
Minifying https://www.iss.nl/fileadmin/templates/fabrique/css/wrapper.css could save 1.7KiB (22% reduction).
Minifying https://www.iss.nl/fileadmin/templates/fabrique/css/museo-sans.css could save 1.7KiB (29% reduction).
Minifying https://www.iss.nl/fileadmin/templates/fabrique/css/gsa.css could save 1.3KiB (21% reduction).
Minifying https://www.iss.nl/fileadmin/templates/fabrique/css/ub.css could save 1.3KiB (20% reduction).
Minifying https://www.iss.nl/fileadmin/templates/fabrique/css/glyphicons-social.css could save 820B (21% reduction).
Minifying https://www.iss.nl/fileadmin/templates/fabrique/style/iss/style.css could save 528B (49% reduction).
Minifying https://www.iss.nl/fileadmin/templates/fabrique/css/extensions.css could save 3.4KiB (19% reduction).
Minifying https://www.iss.nl/fileadmin/templates/fabrique/fabrique.css could save 2KiB (19% reduction).
Minifying https://www.iss.nl/typo3temp/stylesheet_65fc559049.css?1495084829 could save 1.9KiB (28% reduction).
Minifying https://www.iss.nl/fileadmin/templates/fabrique/css/wrapper.css could save 1.7KiB (22% reduction).
Minifying https://www.iss.nl/fileadmin/templates/fabrique/css/museo-sans.css could save 1.7KiB (29% reduction).
Minifying https://www.iss.nl/fileadmin/templates/fabrique/css/gsa.css could save 1.3KiB (21% reduction).
Minifying https://www.iss.nl/fileadmin/templates/fabrique/css/ub.css could save 1.3KiB (20% reduction).
Minifying https://www.iss.nl/fileadmin/templates/fabrique/css/glyphicons-social.css could save 820B (21% reduction).
Minifying https://www.iss.nl/fileadmin/templates/fabrique/style/iss/style.css could save 528B (49% reduction).
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 28.5KiB (35% reduction).
Minifying https://www.iss.nl/fileadmin/templates/fabrique/js/bootstrap.js could save 18.4KiB (35% reduction).
Minifying https://www.iss.nl/typo3conf/ext/cookie_control/pi…okieControl-5.0.min.js could save 5KiB (27% reduction).
Minifying https://www.iss.nl/fileadmin/templates/fabrique/js/dropdown-hover.js could save 2.7KiB (64% reduction).
Minifying https://www.iss.nl/typo3conf/ext/cookie_control/pi…okie_control-plugin.js could save 1KiB (64% reduction).
Minifying https://www.iss.nl/typo3conf/ext/eur_google2/res/js/autocomplete-sidebar.js could save 678B (44% reduction).
Minifying https://www.iss.nl/typo3conf/ext/eur_google2/res/js/autocomplete-toolbar.js could save 678B (44% reduction).
Minifying https://www.iss.nl/typo3conf/ext/cookie_control/pi…okieControl-5.0.min.js could save 5KiB (27% reduction).
Minifying https://www.iss.nl/fileadmin/templates/fabrique/js/dropdown-hover.js could save 2.7KiB (64% reduction).
Minifying https://www.iss.nl/typo3conf/ext/cookie_control/pi…okie_control-plugin.js could save 1KiB (64% reduction).
Minifying https://www.iss.nl/typo3conf/ext/eur_google2/res/js/autocomplete-sidebar.js could save 678B (44% reduction).
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iss.nl Mobile Resource Breakdown
| Total Resources | 51 |
| Number of Hosts | 8 |
| Static Resources | 33 |
| JavaScript Resources | 16 |
| CSS Resources | 15 |
iss.nl mobile page usability
Last tested: 2017-05-27
Mobile Usability
Medium
73/100
iss.nl Mobile Usability Test Quick Summary
priority - 21Use legible font sizes
The following text on your page renders in a way that may be difficult for some of your visitors to read. Use legible font sizes to provide a better user experience.
The following text fragments have a small font size. Increase the font size to make them more legible.
The Erasmus Un…lease read our and 1 others render only 5 pixels tall (14 CSS pixels).cookie policy renders only 5 pixels tall (14 CSS pixels).Accept cookies. renders only 5 pixels tall (14 CSS pixels).Decline cookies. renders only 5 pixels tall (14 CSS pixels).Contact and directions and 3 others render only 4 pixels tall (12 CSS pixels).International and 2 others render only 8 pixels tall (21 CSS pixels).Prospective students and 7 others render only 5 pixels tall (14 CSS pixels).Celebrate with us renders only 8 pixels tall (21 CSS pixels).ISS at 65 and 1 others render only 5 pixels tall (14 CSS pixels).Search renders only 8 pixels tall (21 CSS pixels).ISS contact and address and 3 others render only 5 pixels tall (14 CSS pixels).Study programmes and 3 others render only 8 pixels tall (21 CSS pixels).ISS study guide and 1 others render only 8 pixels tall (21 CSS pixels).Download the Study Guide and 3 others render only 5 pixels tall (14 CSS pixels).ISS is an inte…n environment. renders only 6 pixels tall (15 CSS pixels).News renders only 8 pixels tall (21 CSS pixels).Calendar renders only 8 pixels tall (21 CSS pixels).Professor Fati…lder 2016-2018 and 4 others render only 6 pixels tall (15 CSS pixels).Cookie settings and 2 others render only 5 pixels tall (14 CSS pixels).© 2017 Erasmus…sity Rotterdam renders only 5 pixels tall (14 CSS pixels).The following text fragments have a small line height. Increase the line height to make them more legible.
ISS - 65 years…and research! has a line height of only 100% of the font size.priority - 10Configure the viewport
Your page specifies a fixed-width desktop viewport. Use a responsive viewport to allow your page to render properly on all devices.
priority - 6Size 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 id="cctoggle" href="javascript:void(0)" class="cctoggle-on">Accept cookies.</a> and 1 others are close to other tap targets.The tap target
<span class="toggle-off">Accept cookies.</span> and 1 others are close to other tap targets.The tap target
<span class="toggle-off">Accept cookies.</span> and 1 others are close to other tap targets.The tap target
<span class="toggle-on">Decline cookies.</span> and 1 others are close to other tap targets.The tap target
<input id="search-toolbar-box" type="text" name="q" class="form-control u…complete-input"> is close to 4 other tap targets.The tap target
<button type="submit" class="btn btn-default"></button> is close to 4 other tap targets.The tap target
<a href="/eur/">EUR</a> and 2 others are close to other tap targets.The tap target
<a href="/">International…Social Studies</a> is close to 2 other tap targets.The tap target
<a href="/research/" class="dropdown-toggle">Research</a> and 4 others are close to other tap targets.The tap target
<a href="http://www.eur…/address_book/">EUR address book</a> and 3 others are close to other tap targets.The tap target
<a href="/news_events/i…-of-extremism/">'Inequality in…of extremism'</a> is close to 2 other tap targets.The tap target
<a href="https://www.fa…ook.com/iss.nl"></a> and 4 others are close to other tap targets.The tap target
<a href="https://www.fa…ook.com/iss.nl"></a> and 4 others are close to other tap targets.The tap target
<a href="http://www.eur…php?id=2467361">ANBI</a> is close to 1 other tap targets.iss.nl HTML validation
Errors
Attribute “xmlns:dc” not allowed here.
Line: 1 Column: 16 - 307
"...TYPE html><html lang="en" dir="ltr" xmlns:dc="http://purl.org/dc/terms/" xmlns:og="http://ogp.me/ns#" xmlns:article="http://ogp.me/ns/article#" xmlns:book="http://ogp.me/ns/book#" xmlns:product="http://ogp.me/ns/product#" xmlns:profile="http://ogp.me/ns/profile#" xmlns:video="http://ogp.me/ns/video#"><head>..."
"...TYPE html><html lang="en" dir="ltr" xmlns:dc="http://purl.org/dc/terms/" xmlns:og="http://ogp.me/ns#" xmlns:article="http://ogp.me/ns/article#" xmlns:book="http://ogp.me/ns/book#" xmlns:product="http://ogp.me/ns/product#" xmlns:profile="http://ogp.me/ns/profile#" xmlns:video="http://ogp.me/ns/video#"><head>..."
Attribute “xmlns:og” not allowed here.
Line: 1 Column: 16 - 307
"...TYPE html><html lang="en" dir="ltr" xmlns:dc="http://purl.org/dc/terms/" xmlns:og="http://ogp.me/ns#" xmlns:article="http://ogp.me/ns/article#" xmlns:book="http://ogp.me/ns/book#" xmlns:product="http://ogp.me/ns/product#" xmlns:profile="http://ogp.me/ns/profile#" xmlns:video="http://ogp.me/ns/video#"><head>..."
"...TYPE html><html lang="en" dir="ltr" xmlns:dc="http://purl.org/dc/terms/" xmlns:og="http://ogp.me/ns#" xmlns:article="http://ogp.me/ns/article#" xmlns:book="http://ogp.me/ns/book#" xmlns:product="http://ogp.me/ns/product#" xmlns:profile="http://ogp.me/ns/profile#" xmlns:video="http://ogp.me/ns/video#"><head>..."
Attribute “xmlns:article” not allowed here.
Line: 1 Column: 16 - 307
"...TYPE html><html lang="en" dir="ltr" xmlns:dc="http://purl.org/dc/terms/" xmlns:og="http://ogp.me/ns#" xmlns:article="http://ogp.me/ns/article#" xmlns:book="http://ogp.me/ns/book#" xmlns:product="http://ogp.me/ns/product#" xmlns:profile="http://ogp.me/ns/profile#" xmlns:video="http://ogp.me/ns/video#"><head>..."
"...TYPE html><html lang="en" dir="ltr" xmlns:dc="http://purl.org/dc/terms/" xmlns:og="http://ogp.me/ns#" xmlns:article="http://ogp.me/ns/article#" xmlns:book="http://ogp.me/ns/book#" xmlns:product="http://ogp.me/ns/product#" xmlns:profile="http://ogp.me/ns/profile#" xmlns:video="http://ogp.me/ns/video#"><head>..."
Attribute “xmlns:book” not allowed here.
Line: 1 Column: 16 - 307
"...TYPE html><html lang="en" dir="ltr" xmlns:dc="http://purl.org/dc/terms/" xmlns:og="http://ogp.me/ns#" xmlns:article="http://ogp.me/ns/article#" xmlns:book="http://ogp.me/ns/book#" xmlns:product="http://ogp.me/ns/product#" xmlns:profile="http://ogp.me/ns/profile#" xmlns:video="http://ogp.me/ns/video#"><head>..."
"...TYPE html><html lang="en" dir="ltr" xmlns:dc="http://purl.org/dc/terms/" xmlns:og="http://ogp.me/ns#" xmlns:article="http://ogp.me/ns/article#" xmlns:book="http://ogp.me/ns/book#" xmlns:product="http://ogp.me/ns/product#" xmlns:profile="http://ogp.me/ns/profile#" xmlns:video="http://ogp.me/ns/video#"><head>..."
Attribute “xmlns:product” not allowed here.
Line: 1 Column: 16 - 307
"...TYPE html><html lang="en" dir="ltr" xmlns:dc="http://purl.org/dc/terms/" xmlns:og="http://ogp.me/ns#" xmlns:article="http://ogp.me/ns/article#" xmlns:book="http://ogp.me/ns/book#" xmlns:product="http://ogp.me/ns/product#" xmlns:profile="http://ogp.me/ns/profile#" xmlns:video="http://ogp.me/ns/video#"><head>..."
"...TYPE html><html lang="en" dir="ltr" xmlns:dc="http://purl.org/dc/terms/" xmlns:og="http://ogp.me/ns#" xmlns:article="http://ogp.me/ns/article#" xmlns:book="http://ogp.me/ns/book#" xmlns:product="http://ogp.me/ns/product#" xmlns:profile="http://ogp.me/ns/profile#" xmlns:video="http://ogp.me/ns/video#"><head>..."
Attribute “xmlns:profile” not allowed here.
Line: 1 Column: 16 - 307
"...TYPE html><html lang="en" dir="ltr" xmlns:dc="http://purl.org/dc/terms/" xmlns:og="http://ogp.me/ns#" xmlns:article="http://ogp.me/ns/article#" xmlns:book="http://ogp.me/ns/book#" xmlns:product="http://ogp.me/ns/product#" xmlns:profile="http://ogp.me/ns/profile#" xmlns:video="http://ogp.me/ns/video#"><head>..."
"...TYPE html><html lang="en" dir="ltr" xmlns:dc="http://purl.org/dc/terms/" xmlns:og="http://ogp.me/ns#" xmlns:article="http://ogp.me/ns/article#" xmlns:book="http://ogp.me/ns/book#" xmlns:product="http://ogp.me/ns/product#" xmlns:profile="http://ogp.me/ns/profile#" xmlns:video="http://ogp.me/ns/video#"><head>..."
Attribute “xmlns:video” not allowed here.
Line: 1 Column: 16 - 307
"...TYPE html><html lang="en" dir="ltr" xmlns:dc="http://purl.org/dc/terms/" xmlns:og="http://ogp.me/ns#" xmlns:article="http://ogp.me/ns/article#" xmlns:book="http://ogp.me/ns/book#" xmlns:product="http://ogp.me/ns/product#" xmlns:profile="http://ogp.me/ns/profile#" xmlns:video="http://ogp.me/ns/video#"><head>..."
"...TYPE html><html lang="en" dir="ltr" xmlns:dc="http://purl.org/dc/terms/" xmlns:og="http://ogp.me/ns#" xmlns:article="http://ogp.me/ns/article#" xmlns:book="http://ogp.me/ns/book#" xmlns:product="http://ogp.me/ns/product#" xmlns:profile="http://ogp.me/ns/profile#" xmlns:video="http://ogp.me/ns/video#"><head>..."
Bad value “revision” for attribute “rel” on element “link”: The string “revision” is not a registered keyword.
Line: 1 Column: 1736 - 1808
"....nl/en" /><link rel="revision" href="/en/international-institute-social-studies" /><scrip..."
"....nl/en" /><link rel="revision" href="/en/international-institute-social-studies" /><scrip..."
Text not allowed in element “iframe” in this context.
Line: 1 Column: 15979 - 15996
"... Manager">Google Tag Manager</ifra..."
"... Manager">Google Tag Manager</ifra..."
Attribute “href” not allowed on element “button” at this point.
Line: 1 Column: 96738 - 96912
"...-search"> <button id="searchButton" class="js-search-toggle collapsed" href="#searchBox" data-toggle="collapse" data-target="#searchBox" aria-expanded="false" aria-controls="searchBox"> <span..."
"...-search"> <button id="searchButton" class="js-search-toggle collapsed" href="#searchBox" data-toggle="collapse" data-target="#searchBox" aria-expanded="false" aria-controls="searchBox"> <span..."
Attribute “focusable” not allowed on element “span” at this point.
Line: 1 Column: 111643 - 111705
"...Previous"><span class="slick__icon" aria-hidden="true" focusable="false">&lsaqu..." Line: 1 Column: 111910 - 111972
"...ext</span><span class="slick__icon" aria-hidden="true" focusable="false">&rsaqu..."
"...Previous"><span class="slick__icon" aria-hidden="true" focusable="false">&lsaqu..." Line: 1 Column: 111910 - 111972
"...ext</span><span class="slick__icon" aria-hidden="true" focusable="false">&rsaqu..."
Element “div” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
Line: 1 Column: 114071 - 114153
"...ta__item"><div class="field field--name-field-date field--type-datetime field--label-hidden"><time ..." Line: 1 Column: 115864 - 115946
"...ta__item"><div class="field field--name-field-date field--type-datetime field--label-hidden"><time ..." Line: 1 Column: 117580 - 117662
"...ta__item"><div class="field field--name-field-date field--type-datetime field--label-hidden"><time ..." Line: 1 Column: 119309 - 119391
"...ta__item"><div class="field field--name-field-date field--type-datetime field--label-hidden"><time ..." Line: 1 Column: 121022 - 121104
"...ta__item"><div class="field field--name-field-date field--type-datetime field--label-hidden"><time ..." Line: 1 Column: 123496 - 123589
"...ta__item"><div class="field field--name-field-start-end-date field--type-daterange field--label-hidden"><time ..." Line: 1 Column: 125355 - 125448
"...ta__item"><div class="field field--name-field-start-end-date field--type-daterange field--label-hidden"><time ..." Line: 1 Column: 127080 - 127173
"...ta__item"><div class="field field--name-field-start-end-date field--type-daterange field--label-hidden"><time ..." Line: 1 Column: 128806 - 128899
"...ta__item"><div class="field field--name-field-start-end-date field--type-daterange field--label-hidden"><time ..." Line: 1 Column: 130594 - 130687
"...ta__item"><div class="field field--name-field-start-end-date field--type-daterange field--label-hidden"><time ..."
"...ta__item"><div class="field field--name-field-date field--type-datetime field--label-hidden"><time ..." Line: 1 Column: 115864 - 115946
"...ta__item"><div class="field field--name-field-date field--type-datetime field--label-hidden"><time ..." Line: 1 Column: 117580 - 117662
"...ta__item"><div class="field field--name-field-date field--type-datetime field--label-hidden"><time ..." Line: 1 Column: 119309 - 119391
"...ta__item"><div class="field field--name-field-date field--type-datetime field--label-hidden"><time ..." Line: 1 Column: 121022 - 121104
"...ta__item"><div class="field field--name-field-date field--type-datetime field--label-hidden"><time ..." Line: 1 Column: 123496 - 123589
"...ta__item"><div class="field field--name-field-start-end-date field--type-daterange field--label-hidden"><time ..." Line: 1 Column: 125355 - 125448
"...ta__item"><div class="field field--name-field-start-end-date field--type-daterange field--label-hidden"><time ..." Line: 1 Column: 127080 - 127173
"...ta__item"><div class="field field--name-field-start-end-date field--type-daterange field--label-hidden"><time ..." Line: 1 Column: 128806 - 128899
"...ta__item"><div class="field field--name-field-start-end-date field--type-daterange field--label-hidden"><time ..." Line: 1 Column: 130594 - 130687
"...ta__item"><div class="field field--name-field-start-end-date field--type-daterange field--label-hidden"><time ..."
Duplicate attribute “xml:lang”.
Line: 1 Column: - 124429
"...EN-US" xml:lang="EN-US">Humani..."
"...EN-US" xml:lang="EN-US">Humani..."
Bad value “navigation” for attribute “role” on element “ul”.
Line: 1 Column: 132336 - 132415
"...d__aside"><ul class="social__list" role="navigation" aria-labelledby="social-media-links"> <span..."
"...d__aside"><ul class="social__list" role="navigation" aria-labelledby="social-media-links"> <span..."
Element “span” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Line: 1 Column: 132417 - 132470
"...a-links"> <span id="social-media-links" class="visually-hidden">Social..."
"...a-links"> <span id="social-media-links" class="visually-hidden">Social..."
Warnings
Attribute with the local name “xmlns:dc” is not serializable as XML 1.0.
Line: 1 Column: 16 - 307
"...TYPE html><html lang="en" dir="ltr" xmlns:dc="http://purl.org/dc/terms/" xmlns:og="http://ogp.me/ns#" xmlns:article="http://ogp.me/ns/article#" xmlns:book="http://ogp.me/ns/book#" xmlns:product="http://ogp.me/ns/product#" xmlns:profile="http://ogp.me/ns/profile#" xmlns:video="http://ogp.me/ns/video#"><head>..."
"...TYPE html><html lang="en" dir="ltr" xmlns:dc="http://purl.org/dc/terms/" xmlns:og="http://ogp.me/ns#" xmlns:article="http://ogp.me/ns/article#" xmlns:book="http://ogp.me/ns/book#" xmlns:product="http://ogp.me/ns/product#" xmlns:profile="http://ogp.me/ns/profile#" xmlns:video="http://ogp.me/ns/video#"><head>..."
Attribute with the local name “xmlns:og” is not serializable as XML 1.0.
Line: 1 Column: 16 - 307
"...TYPE html><html lang="en" dir="ltr" xmlns:dc="http://purl.org/dc/terms/" xmlns:og="http://ogp.me/ns#" xmlns:article="http://ogp.me/ns/article#" xmlns:book="http://ogp.me/ns/book#" xmlns:product="http://ogp.me/ns/product#" xmlns:profile="http://ogp.me/ns/profile#" xmlns:video="http://ogp.me/ns/video#"><head>..."
"...TYPE html><html lang="en" dir="ltr" xmlns:dc="http://purl.org/dc/terms/" xmlns:og="http://ogp.me/ns#" xmlns:article="http://ogp.me/ns/article#" xmlns:book="http://ogp.me/ns/book#" xmlns:product="http://ogp.me/ns/product#" xmlns:profile="http://ogp.me/ns/profile#" xmlns:video="http://ogp.me/ns/video#"><head>..."
Attribute with the local name “xmlns:article” is not serializable as XML 1.0.
Line: 1 Column: 16 - 307
"...TYPE html><html lang="en" dir="ltr" xmlns:dc="http://purl.org/dc/terms/" xmlns:og="http://ogp.me/ns#" xmlns:article="http://ogp.me/ns/article#" xmlns:book="http://ogp.me/ns/book#" xmlns:product="http://ogp.me/ns/product#" xmlns:profile="http://ogp.me/ns/profile#" xmlns:video="http://ogp.me/ns/video#"><head>..."
"...TYPE html><html lang="en" dir="ltr" xmlns:dc="http://purl.org/dc/terms/" xmlns:og="http://ogp.me/ns#" xmlns:article="http://ogp.me/ns/article#" xmlns:book="http://ogp.me/ns/book#" xmlns:product="http://ogp.me/ns/product#" xmlns:profile="http://ogp.me/ns/profile#" xmlns:video="http://ogp.me/ns/video#"><head>..."
Attribute with the local name “xmlns:book” is not serializable as XML 1.0.
Line: 1 Column: 16 - 307
"...TYPE html><html lang="en" dir="ltr" xmlns:dc="http://purl.org/dc/terms/" xmlns:og="http://ogp.me/ns#" xmlns:article="http://ogp.me/ns/article#" xmlns:book="http://ogp.me/ns/book#" xmlns:product="http://ogp.me/ns/product#" xmlns:profile="http://ogp.me/ns/profile#" xmlns:video="http://ogp.me/ns/video#"><head>..."
"...TYPE html><html lang="en" dir="ltr" xmlns:dc="http://purl.org/dc/terms/" xmlns:og="http://ogp.me/ns#" xmlns:article="http://ogp.me/ns/article#" xmlns:book="http://ogp.me/ns/book#" xmlns:product="http://ogp.me/ns/product#" xmlns:profile="http://ogp.me/ns/profile#" xmlns:video="http://ogp.me/ns/video#"><head>..."
Attribute with the local name “xmlns:product” is not serializable as XML 1.0.
Line: 1 Column: 16 - 307
"...TYPE html><html lang="en" dir="ltr" xmlns:dc="http://purl.org/dc/terms/" xmlns:og="http://ogp.me/ns#" xmlns:article="http://ogp.me/ns/article#" xmlns:book="http://ogp.me/ns/book#" xmlns:product="http://ogp.me/ns/product#" xmlns:profile="http://ogp.me/ns/profile#" xmlns:video="http://ogp.me/ns/video#"><head>..."
"...TYPE html><html lang="en" dir="ltr" xmlns:dc="http://purl.org/dc/terms/" xmlns:og="http://ogp.me/ns#" xmlns:article="http://ogp.me/ns/article#" xmlns:book="http://ogp.me/ns/book#" xmlns:product="http://ogp.me/ns/product#" xmlns:profile="http://ogp.me/ns/profile#" xmlns:video="http://ogp.me/ns/video#"><head>..."
Attribute with the local name “xmlns:profile” is not serializable as XML 1.0.
Line: 1 Column: 16 - 307
"...TYPE html><html lang="en" dir="ltr" xmlns:dc="http://purl.org/dc/terms/" xmlns:og="http://ogp.me/ns#" xmlns:article="http://ogp.me/ns/article#" xmlns:book="http://ogp.me/ns/book#" xmlns:product="http://ogp.me/ns/product#" xmlns:profile="http://ogp.me/ns/profile#" xmlns:video="http://ogp.me/ns/video#"><head>..."
"...TYPE html><html lang="en" dir="ltr" xmlns:dc="http://purl.org/dc/terms/" xmlns:og="http://ogp.me/ns#" xmlns:article="http://ogp.me/ns/article#" xmlns:book="http://ogp.me/ns/book#" xmlns:product="http://ogp.me/ns/product#" xmlns:profile="http://ogp.me/ns/profile#" xmlns:video="http://ogp.me/ns/video#"><head>..."
Attribute with the local name “xmlns:video” is not serializable as XML 1.0.
Line: 1 Column: 16 - 307
"...TYPE html><html lang="en" dir="ltr" xmlns:dc="http://purl.org/dc/terms/" xmlns:og="http://ogp.me/ns#" xmlns:article="http://ogp.me/ns/article#" xmlns:book="http://ogp.me/ns/book#" xmlns:product="http://ogp.me/ns/product#" xmlns:profile="http://ogp.me/ns/profile#" xmlns:video="http://ogp.me/ns/video#"><head>..."
"...TYPE html><html lang="en" dir="ltr" xmlns:dc="http://purl.org/dc/terms/" xmlns:og="http://ogp.me/ns#" xmlns:article="http://ogp.me/ns/article#" xmlns:book="http://ogp.me/ns/book#" xmlns:product="http://ogp.me/ns/product#" xmlns:profile="http://ogp.me/ns/profile#" xmlns:video="http://ogp.me/ns/video#"><head>..."
The “navigation” role is unnecessary for element “nav”.
Line: 1 Column: 19092 - 19207
"...primary"> <nav role="navigation" aria-labelledby="navigation-primary" id="block-navigationprimary" class="navigation-primary"><h2 cl..." Line: 1 Column: 134867 - 134951
"...-middle"> <nav class="navigation-footer" role="navigation" aria-labelledby="footer-navigation"><h2 id..."
"...primary"> <nav role="navigation" aria-labelledby="navigation-primary" id="block-navigationprimary" class="navigation-primary"><h2 cl..." Line: 1 Column: 134867 - 134951
"...-middle"> <nav class="navigation-footer" role="navigation" aria-labelledby="footer-navigation"><h2 id..."
The “article” role is unnecessary for element “article”.
Line: 1 Column: 100347 - 100456
".../h2></div><article data-history-node-id="11257" role="article" class="node node--type-landingpage node--view-mode-full"><div c..."
".../h2></div><article data-history-node-id="11257" role="article" class="node node--type-landingpage node--view-mode-full"><div c..."
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iss.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.
iss.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.