Report Summary

  • 21

    Performance

    Renders faster than
    39% of other websites

  • 87

    Accessibility

    Visual factors better than
    that of 66% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 69

    SEO

    Google-friendlier than
    28% of websites

tennisvlaanderen.be

Tennis Home - Tennis en Padel Vlaanderen

Page Load Speed

14.9 sec in total

First Response

319 ms

Resources Loaded

14.2 sec

Page Rendered

381 ms

tennisvlaanderen.be screenshot

About Website

Click here to check amazing Tennis Vlaanderen content for Belgium. Otherwise, check out these important facts you probably never knew about tennisvlaanderen.be

Word ‘Recommended Tennis Supplier’ bij Tennis en Padel Vlaanderen en de federatie promoot jouw diensten bij nieuwe en bestaande clubs.

Visit tennisvlaanderen.be

Key Findings

We analyzed Tennisvlaanderen.be page load time and found that the first response time was 319 ms and then it took 14.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

tennisvlaanderen.be performance score

21

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.3 s

3/100

10%

LCP (Largest Contentful Paint)

Value14.1 s

0/100

25%

SI (Speed Index)

Value11.6 s

4/100

10%

TBT (Total Blocking Time)

Value390 ms

68/100

30%

CLS (Cumulative Layout Shift)

Value1.005

2/100

15%

TTI (Time to Interactive)

Value27.6 s

0/100

10%

Network Requests Diagram

tennisvlaanderen.be

319 ms

home

2002 ms

jquery.primefaces.min.js

666 ms

modernizr.js

542 ms

main.css

741 ms

Our browser made a total of 81 requests to load all elements on the main page. We found that 5% of them (4 requests) were addressed to the original Tennisvlaanderen.be, 46% (37 requests) were made to Cdn.vlaamsetennisver.netdna-cdn.com and 27% (22 requests) were made to Static.xx.fbcdn.net. The less responsive or slowest element that took the longest time to load (10.7 sec) relates to the external source Cdn.vlaamsetennisver.netdna-cdn.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.1 MB (12%)

Content Size

9.4 MB

After Optimization

8.3 MB

In fact, the total size of Tennisvlaanderen.be main page is 9.4 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. 55% of websites need less resources to load. Images take 8.1 MB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 65.4 kB

  • Original 79.3 kB
  • After minification 73.4 kB
  • After compression 13.9 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. 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 65.4 kB or 83% of the original size.

Image Optimization

-1%

Potential reduce by 115.8 kB

  • Original 8.1 MB
  • After minification 8.0 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. Tennis Vlaanderen images are well optimized though.

JavaScript Optimization

-70%

Potential reduce by 486.8 kB

  • Original 696.5 kB
  • After minification 638.9 kB
  • After compression 209.7 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 486.8 kB or 70% of the original size.

CSS Optimization

-85%

Potential reduce by 419.6 kB

  • Original 494.8 kB
  • After minification 487.5 kB
  • After compression 75.2 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. Tennisvlaanderen.be needs all CSS files to be minified and compressed as it can save up to 419.6 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 31 (40%)

Requests Now

77

After Optimization

46

The browser has sent 77 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Tennis Vlaanderen. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 22 to 1 for JavaScripts and from 11 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

tennisvlaanderen.be accessibility score

87

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Some elements have a [tabindex] value greater than 0

Best Practices

tennisvlaanderen.be best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

tennisvlaanderen.be SEO score

69

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

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Image elements do not have [alt] attributes

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

    NL

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Tennisvlaanderen.be 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 Tennisvlaanderen.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 description is not detected on the main page of Tennis Vlaanderen. 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: