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zen.nl screenshot

Report Summary

  • 39

    Performance

    Renders faster than
    58% of other websites

  • 91

    Accessibility

    Visual factors better than
    that of 76% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 98

    SEO

    Google-friendlier than
    92% of websites

zen.nl

Meditatiecursus centrum Zen.nl, leer mediteren | Zen.nl Nederland

Page Load Speed

2.4 sec in total

First Response

284 ms

Resources Loaded

2 sec

Page Rendered

113 ms

zen.nl screenshot

About Website

Click here to check amazing Zen content for Netherlands. Otherwise, check out these important facts you probably never knew about zen.nl

Op zoek naar een meditatiecursus? Zen.nl verzorgt meditatiecursussen op een praktische en inspirerende manier. Minder stress, meer rust en meer aandacht.

Visit zen.nl

Key Findings

We analyzed Zen.nl page load time and found that the first response time was 284 ms and then it took 2.1 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.

Performance Metrics

zen.nl performance score

39

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.7 s

29/100

10%

LCP (Largest Contentful Paint)

Value3.7 s

57/100

25%

SI (Speed Index)

Value5.3 s

59/100

10%

TBT (Total Blocking Time)

Value850 ms

34/100

30%

CLS (Cumulative Layout Shift)

Value0.467

19/100

15%

TTI (Time to Interactive)

Value9.7 s

28/100

10%

Network Requests Diagram

zen.nl

284 ms

zen.nl

383 ms

www.zen.nl

515 ms

styles-1-1714381156.min.css

195 ms

extra_extra.css

281 ms

Our browser made a total of 37 requests to load all elements on the main page. We found that 62% of them (23 requests) were addressed to the original Zen.nl, 8% (3 requests) were made to Googletagmanager.com and 8% (3 requests) were made to Connect.facebook.net. The less responsive or slowest element that took the longest time to load (837 ms) belongs to the original domain Zen.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 142.6 kB (28%)

Content Size

510.0 kB

After Optimization

367.4 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Zen.nl main page is 510.0 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. 55% of websites need less resources to load. Javascripts take 287.3 kB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 29.5 kB

  • Original 37.7 kB
  • After minification 35.9 kB
  • After compression 8.2 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 29.5 kB or 78% of the original size.

Image Optimization

-14%

Potential reduce by 24.2 kB

  • Original 172.9 kB
  • After minification 148.7 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, Zen needs image optimization as it can save up to 24.2 kB or 14% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-31%

Potential reduce by 88.0 kB

  • Original 287.3 kB
  • After minification 287.3 kB
  • After compression 199.3 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 88.0 kB or 31% of the original size.

CSS Optimization

-7%

Potential reduce by 849 B

  • Original 12.0 kB
  • After minification 12.0 kB
  • After compression 11.2 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. Zen.nl has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 14 (41%)

Requests Now

34

After Optimization

20

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 34 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Zen. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 12 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

zen.nl

zen.nl

284 ms

zen.nl

zen.nl

383 ms

www.zen.nl

www.zen.nl

515 ms

styles-1-1714381156.min.css

styles-1-1714381156.min.css

195 ms

extra_extra.css

extra_extra.css

281 ms

template_18.css

template_18.css

282 ms

tagstijlen.css

tagstijlen.css

281 ms

uc.js

uc.js

28 ms

scripts-2-1707298438.min.js

scripts-2-1707298438.min.js

837 ms

plusone.js

plusone.js

22 ms

whatsappknop.png

whatsappknop.png

115 ms

logo-202306-150.jpg

logo-202306-150.jpg

116 ms

homehome.png

homehome.png

116 ms

flag.png

flag.png

117 ms

zoek.png

zoek.png

247 ms

logo-202306-150.a17c52425d6ab0751b8d6b7f53eb41d0.jpg

logo-202306-150.a17c52425d6ab0751b8d6b7f53eb41d0.jpg

247 ms

homehome.4ec968d98ca8032586bd5957f0739ca7.png

homehome.4ec968d98ca8032586bd5957f0739ca7.png

247 ms

hersenen%20rood.jpg

hersenen%20rood.jpg

282 ms

leer%20denken%2014e%20druk.jpg

leer%20denken%2014e%20druk.jpg

528 ms

abonneertab%20rood.jpg

abonneertab%20rood.jpg

386 ms

FB_wits.png

FB_wits.png

386 ms

LINK_wits.png

LINK_wits.png

385 ms

YT_wits.png

YT_wits.png

388 ms

INSTA_wits.png

INSTA_wits.png

459 ms

CRKBO_Instelling.jpg

CRKBO_Instelling.jpg

460 ms

feedback-company-widget.min.js

feedback-company-widget.min.js

388 ms

analytics.js

analytics.js

26 ms

gtm.js

gtm.js

64 ms

cb=gapi.loaded_0

cb=gapi.loaded_0

17 ms

collect

collect

21 ms

collect

collect

53 ms

js

js

65 ms

js

js

174 ms

fbevents.js

fbevents.js

136 ms

ga-audiences

ga-audiences

270 ms

806753316699046

806753316699046

106 ms

1016556738406397

1016556738406397

68 ms

Accessibility Review

zen.nl accessibility score

91

Accessibility Issues

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.

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

zen.nl best practices score

67

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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

zen.nl SEO score

98

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 Zen.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 Zen.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

zen.nl

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