Report Summary

  • 4

    Performance

    Renders faster than
    20% of other websites

  • 61

    Accessibility

    Visual factors better than
    that of 27% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 85

    SEO

    Google-friendlier than
    56% of websites

energyson.fr

Magasin de sonorisation et musique - Energyson | Sono

Page Load Speed

7.8 sec in total

First Response

295 ms

Resources Loaded

6.8 sec

Page Rendered

701 ms

energyson.fr screenshot

About Website

Welcome to energyson.fr homepage info - get ready to check Energyson best content for France right away, or after learning these important things about energyson.fr

Depuis 1998, votre spécialiste Sonorisation, Éclairage, DJ, Home Studio, Claviers, Synthés et Câbles au meilleur prix ! Garantie 3 ans. Livraison 24/48h !

Visit energyson.fr

Key Findings

We analyzed Energyson.fr page load time and found that the first response time was 295 ms and then it took 7.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

energyson.fr performance score

4

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value8.4 s

0/100

10%

LCP (Largest Contentful Paint)

Value26.3 s

0/100

25%

SI (Speed Index)

Value17.1 s

0/100

10%

TBT (Total Blocking Time)

Value1,620 ms

12/100

30%

CLS (Cumulative Layout Shift)

Value1.054

2/100

15%

TTI (Time to Interactive)

Value34.8 s

0/100

10%

Network Requests Diagram

energyson.fr

295 ms

www.energyson.fr

2422 ms

diaporama.mobile.css

225 ms

diaporama.css

226 ms

column.css

223 ms

Our browser made a total of 122 requests to load all elements on the main page. We found that 79% of them (96 requests) were addressed to the original Energyson.fr, 4% (5 requests) were made to Fonts.gstatic.com and 2% (3 requests) were made to Widgets.trustedshops.com. The less responsive or slowest element that took the longest time to load (2.4 sec) belongs to the original domain Energyson.fr.

Page Optimization Overview & Recommendations

Page size can be reduced by 622.3 kB (29%)

Content Size

2.2 MB

After Optimization

1.5 MB

In fact, the total size of Energyson.fr main page is 2.2 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. 55% of websites need less resources to load. Images take 1.4 MB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 67.0 kB

  • Original 85.9 kB
  • After minification 85.1 kB
  • After compression 18.9 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 67.0 kB or 78% of the original size.

Image Optimization

-9%

Potential reduce by 126.2 kB

  • Original 1.4 MB
  • After minification 1.3 MB

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. Energyson images are well optimized though.

JavaScript Optimization

-54%

Potential reduce by 215.9 kB

  • Original 400.0 kB
  • After minification 375.4 kB
  • After compression 184.1 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 215.9 kB or 54% of the original size.

CSS Optimization

-84%

Potential reduce by 213.2 kB

  • Original 253.7 kB
  • After minification 226.4 kB
  • After compression 40.6 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. Energyson.fr needs all CSS files to be minified and compressed as it can save up to 213.2 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 39 (35%)

Requests Now

113

After Optimization

74

The browser has sent 113 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Energyson. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and from 13 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

energyson.fr accessibility score

61

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

[aria-*] attributes do not match their roles

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

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

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

energyson.fr 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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

energyson.fr SEO score

85

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

Content Best Practices

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

Impact

Issue

High

Image elements do not have [alt] attributes

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

    FR

  • Language Claimed

    FR

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Energyson.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 Energyson.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

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