Report Summary

  • 38

    Performance

    Renders faster than
    58% of other websites

  • 87

    Accessibility

    Visual factors better than
    that of 67% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 100

    SEO

    Google-friendlier than
    95% of websites

zen.nl

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

Page Load Speed

3.1 sec in total

First Response

345 ms

Resources Loaded

2.5 sec

Page Rendered

249 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 345 ms and then it took 2.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

zen.nl performance score

38

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.7 s

58/100

10%

LCP (Largest Contentful Paint)

Value4.5 s

37/100

25%

SI (Speed Index)

Value8.6 s

17/100

10%

TBT (Total Blocking Time)

Value470 ms

61/100

30%

CLS (Cumulative Layout Shift)

Value0.551

13/100

15%

TTI (Time to Interactive)

Value14.1 s

9/100

10%

Network Requests Diagram

zen.nl

345 ms

www.zen.nl

1260 ms

standaard-theme-zen.nl.css

170 ms

grid.css

172 ms

ie.css

172 ms

Our browser made a total of 66 requests to load all elements on the main page. We found that 50% of them (33 requests) were addressed to the original Zen.nl, 14% (9 requests) were made to Google.com and 5% (3 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (1.3 sec) belongs to the original domain Zen.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 575.5 kB (44%)

Content Size

1.3 MB

After Optimization

739.6 kB

In fact, the total size of Zen.nl main page is 1.3 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. 65% of websites need less resources to load. Images take 505.3 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 37.3 kB

  • Original 48.8 kB
  • After minification 48.0 kB
  • After compression 11.5 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 37.3 kB or 76% of the original size.

Image Optimization

-9%

Potential reduce by 44.9 kB

  • Original 505.3 kB
  • After minification 460.5 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. Zen images are well optimized though.

JavaScript Optimization

-52%

Potential reduce by 230.7 kB

  • Original 445.0 kB
  • After minification 440.3 kB
  • After compression 214.2 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 230.7 kB or 52% of the original size.

CSS Optimization

-83%

Potential reduce by 262.6 kB

  • Original 316.0 kB
  • After minification 298.6 kB
  • After compression 53.4 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 needs all CSS files to be minified and compressed as it can save up to 262.6 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 31 (54%)

Requests Now

57

After Optimization

26

The browser has sent 57 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 13 to 1 for JavaScripts and from 15 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

zen.nl accessibility score

87

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

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

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

100

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

Language and Encoding

  • Language Detected

    NL

  • Language Claimed

    N/A

  • 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 neither this language nor any other was claimed in <html> or <meta> tags. 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

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: