Tools & Wizards About Us
amstelpark.nl screenshot

Report Summary

  • 28

    Performance

    Renders faster than
    47% of other websites

  • 96

    Accessibility

    Visual factors better than
    that of 88% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 99

    SEO

    Google-friendlier than
    93% of websites

amstelpark.nl

Tennisclub Amstelpark: tennissen in Amsterdam

Page Load Speed

3.7 sec in total

First Response

359 ms

Resources Loaded

1.6 sec

Page Rendered

1.7 sec

amstelpark.nl screenshot

About Website

Visit amstelpark.nl now to see the best up-to-date Amstelpark content and also check out these interesting facts you probably never knew about amstelpark.nl

Tennissen in Amsterdam doe je bij Amstelpark tennisclub. Word lid van onze club, huur een tennisbaan of volg tennislessen op elk niveau.

Visit amstelpark.nl

Key Findings

We analyzed Amstelpark.nl page load time and found that the first response time was 359 ms and then it took 3.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

amstelpark.nl performance score

28

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.7 s

13/100

10%

LCP (Largest Contentful Paint)

Value4.8 s

30/100

25%

SI (Speed Index)

Value11.1 s

6/100

10%

TBT (Total Blocking Time)

Value2,180 ms

6/100

30%

CLS (Cumulative Layout Shift)

Value0.071

96/100

15%

TTI (Time to Interactive)

Value10.9 s

21/100

10%

Network Requests Diagram

amstelpark.nl

359 ms

amstelpark.nl

596 ms

jquery.min.js

121 ms

js

121 ms

baaan.svg

151 ms

Our browser made a total of 32 requests to load all elements on the main page. We found that 28% of them (9 requests) were addressed to the original Amstelpark.nl, 53% (17 requests) were made to Cdn.shortpixel.ai and 6% (2 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (616 ms) belongs to the original domain Amstelpark.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 462.1 kB (44%)

Content Size

1.0 MB

After Optimization

576.9 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Amstelpark.nl main page is 1.0 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. 65% of websites need less resources to load. HTML takes 526.0 kB which makes up the majority of the site volume.

HTML Optimization

-88%

Potential reduce by 462.0 kB

  • Original 526.0 kB
  • After minification 519.3 kB
  • After compression 64.0 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. 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 462.0 kB or 88% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 281.3 kB
  • After minification 281.3 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. Amstelpark images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 90 B

  • Original 231.6 kB
  • After minification 231.6 kB
  • After compression 231.6 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.

Requests Breakdown

Number of requests can be reduced by 8 (29%)

Requests Now

28

After Optimization

20

  • AJAX
  • Images
  • JavaScript

The browser has sent 28 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Amstelpark. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

amstelpark.nl

amstelpark.nl

359 ms

amstelpark.nl

amstelpark.nl

596 ms

jquery.min.js

jquery.min.js

121 ms

js

js

121 ms

baaan.svg

baaan.svg

151 ms

bannin.svg

bannin.svg

44 ms

Tennis.svg

Tennis.svg

141 ms

Competities.svg

Competities.svg

95 ms

player.png

player.png

278 ms

V1.svg

V1.svg

96 ms

right.svg

right.svg

172 ms

30April-121-scaled.jpg

30April-121-scaled.jpg

176 ms

Resize-jeugdcomp-scaled.jpg

Resize-jeugdcomp-scaled.jpg

281 ms

Group-11.svg

Group-11.svg

138 ms

amstelpark-logo-wit.svg

amstelpark-logo-wit.svg

174 ms

wp-polyfill.min.js

wp-polyfill.min.js

263 ms

hooks.min.js

hooks.min.js

273 ms

i18n.min.js

i18n.min.js

299 ms

lazyload.min.js

lazyload.min.js

274 ms

2b1c6a152f409057c61f1cd414171a9e.js

2b1c6a152f409057c61f1cd414171a9e.js

616 ms

AP667-scaled-1.webp

AP667-scaled-1.webp

264 ms

AP414-scaled-1.webp

AP414-scaled-1.webp

260 ms

AP539-scaled-1.webp

AP539-scaled-1.webp

289 ms

AP668-scaled-_1_.webp

AP668-scaled-_1_.webp

347 ms

home_bottom_banner-image.jpg

home_bottom_banner-image.jpg

326 ms

eicons.woff

eicons.woff

292 ms

fa-brands-400.woff

fa-brands-400.woff

389 ms

js

js

50 ms

analytics.js

analytics.js

16 ms

collect

collect

76 ms

collect

collect

30 ms

ga-audiences

ga-audiences

124 ms

Accessibility Review

amstelpark.nl accessibility score

96

Accessibility Issues

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

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

High

Links do not have a discernible name

Best Practices

amstelpark.nl best practices score

92

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

Page has valid source maps

SEO Factors

amstelpark.nl SEO score

99

Search Engine Optimization Advices

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 Amstelpark.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 Amstelpark.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.

Social Sharing Optimization

amstelpark.nl

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