4.5 sec in total
42 ms
3.7 sec
820 ms
Click here to check amazing Instruct content for Netherlands. Otherwise, check out these important facts you probably never knew about instruct.nl
Instruct is meer dan een uitgeverij. Wij zijn een betrouwbare, betrokken partner in educatie. Voor basisonderwijs, voortgezet onderwijs en mbo.
Visit instruct.nlWe analyzed Instruct.nl page load time and found that the first response time was 42 ms and then it took 4.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.
instruct.nl performance score
name
value
score
weighting
Value4.0 s
22/100
10%
Value13.7 s
0/100
25%
Value5.9 s
49/100
10%
Value490 ms
59/100
30%
Value0.019
100/100
15%
Value10.7 s
23/100
10%
42 ms
1258 ms
41 ms
44 ms
17 ms
Our browser made a total of 69 requests to load all elements on the main page. We found that 84% of them (58 requests) were addressed to the original Instruct.nl, 3% (2 requests) were made to Fonts.gstatic.com and 3% (2 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (1.3 sec) belongs to the original domain Instruct.nl.
Page size can be reduced by 196.3 kB (10%)
1.9 MB
1.7 MB
In fact, the total size of Instruct.nl main page is 1.9 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 70% of websites need less resources to load. Images take 1.6 MB which makes up the majority of the site volume.
Potential reduce by 74.0 kB
HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. This page needs HTML code to be minified as it can gain 18.7 kB, which is 22% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 74.0 kB or 86% of the original size.
Potential reduce by 120.6 kB
Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. Instruct images are well optimized though.
Potential reduce by 1.6 kB
It’s better to minify JavaScript in order to improve website performance. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. This website has mostly compressed JavaScripts.
Potential reduce by 168 B
CSS files minification is very important to reduce a web page rendering time. The faster CSS files can load, the earlier a page can be rendered. Instruct.nl has all CSS files already compressed.
Number of requests can be reduced by 30 (47%)
64
34
The browser has sent 64 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Instruct. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 21 to 1 for JavaScripts and from 11 to 1 for CSS and as a result speed up the page load time.
instruct.nl
42 ms
www.instruct.nl
1258 ms
css
41 ms
font-awesome.css
44 ms
style.min.css
17 ms
editor-front.css
234 ms
search-filter.min.css
231 ms
fontawesome-all.min.css
30 ms
bootstrap-grid.css
241 ms
jquery.mmenu.css
220 ms
jquery.mmenu.navbars.css
221 ms
jquery.mmenu.positioning.css
40 ms
global.css
50 ms
jquery.min.js
63 ms
jquery-migrate.min.js
272 ms
search-filter-build.min.js
232 ms
chosen.jquery.min.js
431 ms
core.min.js
514 ms
datepicker.min.js
514 ms
jquery-3.3.1.min.js
250 ms
modernizr-3.5.0.min.js
251 ms
popper.min.js
34 ms
bootstrap.min.js
265 ms
plugins.js
259 ms
scrollreveal.min.js
268 ms
jquery.mmenu.js
514 ms
jquery.mmenu.navbars.js
280 ms
jquery.mmenu.fixedelements.js
514 ms
global.js
515 ms
logo.svg
248 ms
Homepage-leerlingen-klein-2-1350x643.png
250 ms
FIX-Taal-Instruct-nieuwsbrief-banner-350x220.png
486 ms
25jaar-Fundamentpodcast-thumbnail-3-350x220.jpeg
66 ms
Ontwikkelingen-Fundament-zomer-24-350x220.png
67 ms
1425_logo_digit_po.svg
251 ms
logo-typeworld-kids-220x44.png
68 ms
1425_logo_digitVO_kleur-2-220x49.png
68 ms
vmbo-Informatietechnologie-220x49.png
253 ms
Fundament-25-jaar-def-220x88.png
257 ms
1425_logo_fundament-ZVD_revisie-2.svg
411 ms
Fix_taal-220x49.png
252 ms
1425_logo_GRIP_Rekenen-website.svg
360 ms
1425_logo_digit_mbo.svg
443 ms
DIGIT-mbo-Digitaal-burgerschap-220x49.png
256 ms
DIGIT-mbo-beroepsspecifiek-1-220x49.png
258 ms
1425_logo_KDDV.svg
494 ms
GPS_logo_Taal.svg
992 ms
logo-TypeWorld-XL-220x44.png
372 ms
1425_logo_digit_start.svg
384 ms
1425_logo_digit_updater.svg
395 ms
Ontwerp-zonder-titel-1-220x49.png
463 ms
1425_logo-academy_Webinars.svg
603 ms
B-Bot.png
646 ms
Tijd-voor-Geschiedenis-220x73.png
534 ms
iSociety-220x73.png
695 ms
Paspoort-21-220x73.png
705 ms
Generation-24.7-220x73.png
561 ms
bnb_logo.png
753 ms
font
70 ms
font
71 ms
fa-solid-900.woff
919 ms
fa-regular-400.woff
867 ms
fa-brands-400.woff
997 ms
gtm.js
113 ms
insight.min.js
44 ms
insight_tag_errors.gif
185 ms
js
46 ms
iframe_api
119 ms
www-widgetapi.js
11 ms
instruct.nl accessibility score
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
Internationalization and localization
These are opportunities to improve the interpretation of your content by users in different locales.
Impact
Issue
<html> element does not have a [lang] attribute
Names and labels
These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.
Impact
Issue
Links do not have a discernible name
instruct.nl best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
Page has valid source maps
instruct.nl SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
Mobile Friendly
Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).
Impact
Issue
Document uses legible font sizes
Tap targets are not sized appropriately
NL
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Instruct.nl can be misinterpreted by Google and other search engines. Our service has detected that Dutch is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Instruct.nl main page’s claimed encoding is utf-8. Use of this encoding format is the best practice as the main page visitors from all over the world won’t have any issues with symbol transcription.
instruct.nl
Open Graph data is detected on the main page of Instruct. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: