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Report Summary

About Website

Welcome to netzen.fr homepage info - get ready to check Net Zen best content right away, or after learning these important things about netzen.fr

Net Zen, Agence Web développe des sites internet et des sites mobiles. Optimisation de votre référencement, présence sur les réseaux sociaux. Hébergement et infogérance. Formation sur-mesure.

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name

value

score

weighting

FCP (First Contentful Paint)

Value2.3 s

73/100

10%

LCP (Largest Contentful Paint)

Value4.8 s

31/100

25%

SI (Speed Index)

Value3.2 s

92/100

10%

TBT (Total Blocking Time)

Value160 ms

94/100

30%

CLS (Cumulative Layout Shift)

Value0.07

96/100

15%

TTI (Time to Interactive)

Value4.1 s

86/100

10%

netzen.fr

289 ms

www.netzen.fr

382 ms

www.netzen.fr

418 ms

netzen.css

198 ms

jquery.min.js

391 ms

Our browser made a total of 28 requests to load all elements on the main page. We found that 82% of them (23 requests) were addressed to the original Netzen.fr, 7% (2 requests) were made to Google-analytics.com and 4% (1 request) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (621 ms) belongs to the original domain Netzen.fr.

Content Size

875.4 kB

After Optimization

608.3 kB

In fact, the total size of Netzen.fr main page is 875.4 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 550.6 kB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 16.1 kB

Original 20.7 kB
After minification 18.9 kB
After compression 4.6 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. 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 16.1 kB or 78% of the original size.

Image Optimization

-4%

Potential reduce by 19.5 kB

Original 550.6 kB
After minification 531.1 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. Net Zen images are well optimized though.

JavaScript Optimization

-63%

Potential reduce by 100.0 kB

Original 158.1 kB
After minification 156.7 kB
After compression 58.1 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 100.0 kB or 63% of the original size.

CSS Optimization

-90%

Potential reduce by 131.5 kB

Original 146.0 kB
After minification 129.4 kB
After compression 14.5 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. Netzen.fr needs all CSS files to be minified and compressed as it can save up to 131.5 kB or 90% of the original size.

Requests Now

After Optimization

The browser has sent 21 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Net 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 6 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

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.

High

Links do not have a discernible name

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

Search Engine Optimization Advices

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/).

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

Language Detected

FR
Language Claimed

FR
Encoding

UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Netzen.fr can be misinterpreted by Google and other search engines. Our service has detected that French is used on the page, and it matches the claimed language. Our system also found out that Netzen.fr 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

netzen.fr

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

Report Summary

Performance

Accessibility

Best Practices

SEO

404 | Erreur sur la page demandée | Agence Net Zen

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)