Report Summary

  • 13

    Performance

    Renders faster than
    25% of other websites

  • 88

    Accessibility

    Visual factors better than
    that of 68% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

centrumvoorafstandsonderwijs.be

Centrum voor Afstandsonderwijs - Studeer waar en wanneer je wil

Page Load Speed

6.5 sec in total

First Response

256 ms

Resources Loaded

4.2 sec

Page Rendered

2 sec

centrumvoorafstandsonderwijs.be screenshot

About Website

Click here to check amazing Centrum Voor Afstandsonderwijs content for Belgium. Otherwise, check out these important facts you probably never knew about centrumvoorafstandsonderwijs.be

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Key Findings

We analyzed Centrumvoorafstandsonderwijs.be page load time and found that the first response time was 256 ms and then it took 6.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

centrumvoorafstandsonderwijs.be performance score

13

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.6 s

65/100

10%

LCP (Largest Contentful Paint)

Value12.2 s

0/100

25%

SI (Speed Index)

Value23.3 s

0/100

10%

TBT (Total Blocking Time)

Value7,800 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.272

45/100

15%

TTI (Time to Interactive)

Value38.3 s

0/100

10%

Network Requests Diagram

centrumvoorafstandsonderwijs.be

256 ms

centrumvoorafstandsonderwijs.be

351 ms

www.centrumvoorafstandsonderwijs.be

1890 ms

gtm.js

122 ms

logo_Centrum-voor-Afstandsonderwijs.png

368 ms

Our browser made a total of 42 requests to load all elements on the main page. We found that 19% of them (8 requests) were addressed to the original Centrumvoorafstandsonderwijs.be, 60% (25 requests) were made to Fastcrm.rocks and 7% (3 requests) were made to Cms.fastcrm.rocks. The less responsive or slowest element that took the longest time to load (1.9 sec) belongs to the original domain Centrumvoorafstandsonderwijs.be.

Page Optimization Overview & Recommendations

Page size can be reduced by 386.8 kB (3%)

Content Size

14.3 MB

After Optimization

13.9 MB

In fact, the total size of Centrumvoorafstandsonderwijs.be main page is 14.3 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. 50% of websites need less resources to load. Images take 14.0 MB which makes up the majority of the site volume.

HTML Optimization

-88%

Potential reduce by 223.0 kB

  • Original 254.4 kB
  • After minification 246.9 kB
  • After compression 31.3 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. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 223.0 kB or 88% of the original size.

Image Optimization

-1%

Potential reduce by 163.8 kB

  • Original 14.0 MB
  • After minification 13.9 MB

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. Centrum Voor Afstandsonderwijs images are well optimized though.

Requests Breakdown

We found no issues to fix!

Requests Now

34

After Optimization

34

The browser has sent 34 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Centrum Voor Afstandsonderwijs. According to our analytics all requests are already optimized.

Accessibility Review

centrumvoorafstandsonderwijs.be accessibility score

88

Accessibility Issues

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

High

Buttons do not have an accessible name

High

Links do not have a discernible name

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

Background and foreground colors do not have a sufficient contrast ratio.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best Practices

centrumvoorafstandsonderwijs.be best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

centrumvoorafstandsonderwijs.be SEO score

86

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

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

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    NL

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Centrumvoorafstandsonderwijs.be can be misinterpreted by Google and other search engines. Our service has detected that Dutch is used on the page, and it does not match the claimed English language. Our system also found out that Centrumvoorafstandsonderwijs.be 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.

Social Sharing Optimization

Open Graph data is detected on the main page of Centrum Voor Afstandsonderwijs. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: