5 sec in total
654 ms
4 sec
249 ms
Click here to check amazing Boeken VPRO content for Netherlands. Otherwise, check out these important facts you probably never knew about boeken.vpro.nl
Alle boekenprogramma's van de VPRO online op één plek.
Visit boeken.vpro.nlWe analyzed Boeken.vpro.nl page load time and found that the first response time was 654 ms and then it took 4.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.
boeken.vpro.nl performance score
name
value
score
weighting
Value3.2 s
44/100
10%
Value6.5 s
9/100
25%
Value9.2 s
13/100
10%
Value10,580 ms
0/100
30%
Value0.07
96/100
15%
Value17.7 s
4/100
10%
654 ms
2316 ms
541 ms
543 ms
554 ms
Our browser made a total of 18 requests to load all elements on the main page. We found that 6% of them (1 request) were addressed to the original Boeken.vpro.nl, 50% (9 requests) were made to Files.vpro.nl and 33% (6 requests) were made to Vpro.nl. The less responsive or slowest element that took the longest time to load (2.3 sec) relates to the external source Vpro.nl.
Page size can be reduced by 74.8 kB (79%)
94.5 kB
19.6 kB
In fact, the total size of Boeken.vpro.nl main page is 94.5 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 30% of websites need less resources to load. HTML takes 65.0 kB which makes up the majority of the site volume.
Potential reduce by 53.9 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 10.7 kB, which is 16% 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 53.9 kB or 83% of the original size.
Potential reduce by 9.2 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 9.2 kB or 60% of the original size.
Potential reduce by 11.7 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. Boeken.vpro.nl needs all CSS files to be minified and compressed as it can save up to 11.7 kB or 83% of the original size.
Number of requests can be reduced by 4 (40%)
10
6
The browser has sent 10 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Boeken VPRO. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for CSS and as a result speed up the page load time.
boeken.vpro.nl
654 ms
boeken.html
2316 ms
font.css
541 ms
font.css
543 ms
iconfont.css
554 ms
style.css
606 ms
npo_cc_styles.css
245 ms
require.min.js
382 ms
small-icons-grayscale
178 ms
footer-icon-vproboeken-zwart
177 ms
yellow-88px.png
178 ms
VPROVesta-Regular.woff
233 ms
VPROVesta-Bold.woff
227 ms
vpro-iconfont.woff
119 ms
SimplisticSans-Medium.woff
361 ms
SimplisticSans-Bold.woff
341 ms
BigVesta-SCOsF.woff
349 ms
impl.js
337 ms
boeken.vpro.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
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
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.
boeken.vpro.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
boeken.vpro.nl SEO score
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
NL
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Boeken.vpro.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 Boeken.vpro.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.
boeken.vpro.nl
Open Graph data is detected on the main page of Boeken VPRO. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: