5.8 sec in total
1.4 sec
3.9 sec
549 ms
Click here to check amazing Schoolboekenthuis content for Netherlands. Otherwise, check out these important facts you probably never knew about schoolboekenthuis.nl
Op SchoolboekenThuis.nl vind je de meest actuele lesmethoden en een uitgebreid assortiment oefenmateriaal en zelfstandig werkboekjes voor het basisonderwijs. Daarnaast hebben we een zeer ruim assortim...
Visit schoolboekenthuis.nlWe analyzed Schoolboekenthuis.nl page load time and found that the first response time was 1.4 sec and then it took 4.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.
schoolboekenthuis.nl performance score
name
value
score
weighting
Value4.3 s
18/100
10%
Value4.5 s
38/100
25%
Value6.3 s
42/100
10%
Value540 ms
55/100
30%
Value0.002
100/100
15%
Value6.1 s
63/100
10%
1388 ms
524 ms
260 ms
1044 ms
176 ms
Our browser made a total of 128 requests to load all elements on the main page. We found that 59% of them (75 requests) were addressed to the original Schoolboekenthuis.nl, 14% (18 requests) were made to Pbs.twimg.com and 8% (10 requests) were made to Static.xx.fbcdn.net. The less responsive or slowest element that took the longest time to load (1.4 sec) belongs to the original domain Schoolboekenthuis.nl.
Page size can be reduced by 1.5 MB (44%)
3.3 MB
1.9 MB
In fact, the total size of Schoolboekenthuis.nl main page is 3.3 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. 75% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 1.6 MB which makes up the majority of the site volume.
Potential reduce by 102.3 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 14.5 kB, which is 12% 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 102.3 kB or 82% of the original size.
Potential reduce by 60.1 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. Schoolboekenthuis images are well optimized though.
Potential reduce by 1.2 MB
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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 1.2 MB or 82% of the original size.
Potential reduce by 78.9 kB
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. Schoolboekenthuis.nl needs all CSS files to be minified and compressed as it can save up to 78.9 kB or 85% of the original size.
Number of requests can be reduced by 57 (47%)
122
65
The browser has sent 122 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Schoolboekenthuis. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 39 to 1 for JavaScripts and from 11 to 1 for CSS and as a result speed up the page load time.
www.schoolboekenthuis.nl
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jquery-1.4.2.js
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cufon-yui.js
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Myriad_Pro_700.font.js
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calendar-win2k-1.css
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styles.css
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schoolboekenthuis.nl accessibility score
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
Buttons do not have an accessible name
Links do not have a discernible name
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
ARIA
These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.
Impact
Issue
ARIA IDs are not unique
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
Best practices
These items highlight common accessibility best practices.
Impact
Issue
[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.
schoolboekenthuis.nl best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
Missing source maps for large first-party JavaScript
schoolboekenthuis.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
NL
NL
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Schoolboekenthuis.nl can be misinterpreted by Google and other search engines. Our service has detected that Dutch is used on the page, and it matches the claimed language. Our system also found out that Schoolboekenthuis.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.
schoolboekenthuis.nl
Open Graph description is not detected on the main page of Schoolboekenthuis. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks: