Report Summary

  • 55

    Performance

    Renders faster than
    72% of other websites

  • 59

    Accessibility

    Visual factors better than
    that of 26% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 57

    SEO

    Google-friendlier than
    20% of websites

isoenergie.fr

This domain was successfully registered for the highest bidder in our weekly auction.

Page Load Speed

2.6 sec in total

First Response

267 ms

Resources Loaded

2.1 sec

Page Rendered

251 ms

isoenergie.fr screenshot

About Website

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

This domain was registered on behalf of one of our customers.

Visit isoenergie.fr

Key Findings

We analyzed Isoenergie.fr page load time and found that the first response time was 267 ms and then it took 2.3 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.

Performance Metrics

isoenergie.fr performance score

55

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.6 s

64/100

10%

LCP (Largest Contentful Paint)

Value2.6 s

88/100

25%

SI (Speed Index)

Value5.0 s

63/100

10%

TBT (Total Blocking Time)

Value740 ms

40/100

30%

CLS (Cumulative Layout Shift)

Value0.372

28/100

15%

TTI (Time to Interactive)

Value8.4 s

39/100

10%

Network Requests Diagram

isoenergie.fr

267 ms

www.isoenergie.fr

484 ms

style_css.css

169 ms

pro_dropdown_2_orange_haut3.css

164 ms

caroussel-skin-tango.css

160 ms

Our browser made a total of 45 requests to load all elements on the main page. We found that 82% of them (37 requests) were addressed to the original Isoenergie.fr, 9% (4 requests) were made to Pagead2.googlesyndication.com and 4% (2 requests) were made to Googleads.g.doubleclick.net. The less responsive or slowest element that took the longest time to load (865 ms) belongs to the original domain Isoenergie.fr.

Page Optimization Overview & Recommendations

Page size can be reduced by 170.3 kB (32%)

Content Size

537.9 kB

After Optimization

367.5 kB

In fact, the total size of Isoenergie.fr main page is 537.9 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. 35% of websites need less resources to load. Images take 282.6 kB which makes up the majority of the site volume.

HTML Optimization

-73%

Potential reduce by 37.9 kB

  • Original 51.9 kB
  • After minification 46.3 kB
  • After compression 14.1 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 5.7 kB, 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 37.9 kB or 73% of the original size.

Image Optimization

-2%

Potential reduce by 5.8 kB

  • Original 282.6 kB
  • After minification 276.8 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. Isoenergie images are well optimized though.

JavaScript Optimization

-61%

Potential reduce by 115.4 kB

  • Original 189.4 kB
  • After minification 171.2 kB
  • After compression 74.0 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 115.4 kB or 61% of the original size.

CSS Optimization

-80%

Potential reduce by 11.2 kB

  • Original 14.0 kB
  • After minification 13.5 kB
  • After compression 2.8 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. Isoenergie.fr needs all CSS files to be minified and compressed as it can save up to 11.2 kB or 80% of the original size.

Requests Breakdown

Number of requests can be reduced by 12 (28%)

Requests Now

43

After Optimization

31

The browser has sent 43 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Isoenergie. 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 Review

isoenergie.fr accessibility score

59

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

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

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

High

Links do not have a discernible name

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

isoenergie.fr 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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

isoenergie.fr SEO score

57

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

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Isoenergie.fr can be misinterpreted by Google and other search engines. Our service has detected that English 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 Isoenergie.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 Isoenergie. 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: