Tools & Wizards About Us
zonzoo.nl screenshot

Report Summary

  • 83

    Performance

    Renders faster than
    87% of other websites

  • 64

    Accessibility

    Visual factors better than
    that of 29% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

zonzoo.nl

Page Load Speed

221 ms in total

First Response

42 ms

Resources Loaded

99 ms

Page Rendered

80 ms

zonzoo.nl screenshot

About Website

Welcome to zonzoo.nl homepage info - get ready to check Zonzoo best content for Netherlands right away, or after learning these important things about zonzoo.nl

Visit zonzoo.nl

Key Findings

We analyzed Zonzoo.nl page load time and found that the first response time was 42 ms and then it took 179 ms to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster. This domain responded with an error, which can significantly jeopardize Zonzoo.nl rating and web reputation

Performance Metrics

zonzoo.nl performance score

83

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.4 s

71/100

10%

LCP (Largest Contentful Paint)

Value4.0 s

48/100

25%

SI (Speed Index)

Value2.6 s

97/100

10%

TBT (Total Blocking Time)

Value30 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value4.0 s

88/100

10%

Network Requests Diagram

zonzoo.nl

42 ms

cf.errors.css

5 ms

browser-bar.png

3 ms

cf-no-screenshot-error.png

11 ms

Our browser made a total of 4 requests to load all elements on the main page. We found that all of those requests were addressed to Zonzoo.nl and no external sources were called. The less responsive or slowest element that took the longest time to load (42 ms) belongs to the original domain Zonzoo.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 2.9 kB (23%)

Content Size

12.9 kB

After Optimization

10.0 kB

  • HTML
  • Images
  • CSS

In fact, the total size of Zonzoo.nl main page is 12.9 kB. This result falls within a vast category (top 1 000 000) of heavyweight, probably not optimized, and thus slow loading web pages. Only 5% of websites need less resources to load. CSS take 4.5 kB which makes up the majority of the site volume.

HTML Optimization

-64%

Potential reduce by 2.9 kB

  • Original 4.5 kB
  • After minification 4.0 kB
  • After compression 1.6 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. This page needs HTML code to be minified as it can gain 474 B, which is 11% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 2.9 kB or 64% of the original size.

Image Optimization

-0%

Potential reduce by 5 B

  • Original 3.9 kB
  • After minification 3.9 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. Zonzoo images are well optimized though.

CSS Optimization

-2%

Potential reduce by 75 B

  • Original 4.5 kB
  • After minification 4.5 kB
  • After compression 4.4 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. Zonzoo.nl has all CSS files already compressed.

Requests Breakdown

We found no issues to fix!

Requests Now

3

After Optimization

3

  • Images
  • CSS

The browser has sent 3 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Zonzoo. According to our analytics all requests are already optimized.

Network Requests Diagram

zonzoo.nl

zonzoo.nl

42 ms

cf.errors.css

cf.errors.css

5 ms

browser-bar.png

browser-bar.png

3 ms

cf-no-screenshot-error.png

cf-no-screenshot-error.png

11 ms

Accessibility Review

zonzoo.nl accessibility score

64

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

Document doesn't have a <title> element

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

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

zonzoo.nl 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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

zonzoo.nl SEO score

83

Search Engine Optimization Advices

Content Best Practices

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

Impact

Issue

High

Document doesn't have a <title> element

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

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Zonzoo.nl can be misinterpreted by Google and other search engines. Our service has detected that Dutch is used on the page, and it does not match the claimed English language. Our system also found out that Zonzoo.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

zonzoo.nl

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