Tools & Wizards About Us
tvdz.nl screenshot

Report Summary

  • 81

    Performance

    Renders faster than
    86% of other websites

  • 100

    Accessibility

    Visual factors better than
    that of 97% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

tvdz.nl

TVDZ Tennisvereniging Diemen Zuid

Page Load Speed

1.4 sec in total

First Response

286 ms

Resources Loaded

909 ms

Page Rendered

223 ms

tvdz.nl screenshot

About Website

Welcome to tvdz.nl homepage info - get ready to check TVDZ best content right away, or after learning these important things about tvdz.nl

TVDZ, Tennisvereniging Diemen Zuid, een tennispark met 6 All Weather kunstgrasbanen en 1 oefenkooi. Gezellig clubgebouw, met een bar en terras.

Visit tvdz.nl

Key Findings

We analyzed Tvdz.nl page load time and found that the first response time was 286 ms and then it took 1.1 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 25% of websites can load faster.

Performance Metrics

tvdz.nl performance score

81

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.6 s

93/100

10%

LCP (Largest Contentful Paint)

Value5.0 s

27/100

25%

SI (Speed Index)

Value2.2 s

99/100

10%

TBT (Total Blocking Time)

Value10 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value2.6 s

98/100

10%

Network Requests Diagram

tvdz.nl

286 ms

jspngfix.js

94 ms

wpb05fe919.png

522 ms

wp753b964c.png

188 ms

wpc1ff2ddd.png

266 ms

Our browser made a total of 14 requests to load all elements on the main page. We found that 93% of them (13 requests) were addressed to the original Tvdz.nl, 7% (1 request) were made to Jouwstats.nl. The less responsive or slowest element that took the longest time to load (522 ms) belongs to the original domain Tvdz.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 66.7 kB (12%)

Content Size

544.4 kB

After Optimization

477.7 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Tvdz.nl main page is 544.4 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. 15% of websites need less resources to load. Images take 530.0 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 10.6 kB

  • Original 13.6 kB
  • After minification 13.2 kB
  • After compression 3.1 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 10.6 kB or 77% of the original size.

Image Optimization

-11%

Potential reduce by 55.7 kB

  • Original 530.0 kB
  • After minification 474.3 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. Obviously, TVDZ needs image optimization as it can save up to 55.7 kB or 11% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-56%

Potential reduce by 430 B

  • Original 767 B
  • After minification 616 B
  • After compression 337 B

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 430 B or 56% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

12

After Optimization

12

  • Images
  • JavaScript

The browser has sent 12 CSS, Javascripts, AJAX and image requests in order to completely render the main page of TVDZ. According to our analytics all requests are already optimized.

Network Requests Diagram

tvdz.nl

tvdz.nl

286 ms

jspngfix.js

jspngfix.js

94 ms

wpb05fe919.png

wpb05fe919.png

522 ms

wp753b964c.png

wp753b964c.png

188 ms

wpc1ff2ddd.png

wpc1ff2ddd.png

266 ms

wpacab99c3.png

wpacab99c3.png

182 ms

wp3dadbc96.png

wp3dadbc96.png

181 ms

wp5533b116.gif

wp5533b116.gif

179 ms

wpa381a6fb.png

wpa381a6fb.png

267 ms

wpf144a3b0.png

wpf144a3b0.png

271 ms

wpa067af66.png

wpa067af66.png

356 ms

wp1fa998ad_05.jpg

wp1fa998ad_05.jpg

445 ms

wpbaf823af_05.jpg

wpbaf823af_05.jpg

443 ms

countertel

countertel

133 ms

Accessibility Review

tvdz.nl accessibility score

100

Accessibility Issues

Best Practices

tvdz.nl best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

SEO Factors

tvdz.nl SEO score

77

Search Engine Optimization Advices

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 Tvdz.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 Tvdz.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

tvdz.nl

Open Graph description is not detected on the main page of TVDZ. 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: