Report Summary

  • 60

    Performance

    Renders faster than
    76% of other websites

  • 81

    Accessibility

    Visual factors better than
    that of 52% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 93

    SEO

    Google-friendlier than
    84% of websites

les-series-red-de-sfr.fr

Téléphones, Internet & Forfait sans engagement - RED by SFR

Page Load Speed

3.6 sec in total

First Response

349 ms

Resources Loaded

3 sec

Page Rendered

210 ms

les-series-red-de-sfr.fr screenshot

About Website

Visit les-series-red-de-sfr.fr now to see the best up-to-date Lesseries RED De SFR content and also check out these interesting facts you probably never knew about les-series-red-de-sfr.fr

Découvrez les offres RED by SFR : forfaits mobiles 4G et 5G, box internet Fibre et ADSL, Internet + Mobile sans engagement !

Visit les-series-red-de-sfr.fr

Key Findings

We analyzed Les-series-red-de-sfr.fr page load time and found that the first response time was 349 ms and then it took 3.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Performance Metrics

les-series-red-de-sfr.fr performance score

60

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.5 s

36/100

10%

LCP (Largest Contentful Paint)

Value4.6 s

35/100

25%

SI (Speed Index)

Value5.3 s

58/100

10%

TBT (Total Blocking Time)

Value410 ms

66/100

30%

CLS (Cumulative Layout Shift)

Value0.002

100/100

15%

TTI (Time to Interactive)

Value5.9 s

66/100

10%

Network Requests Diagram

les-series-red-de-sfr.fr

349 ms

www.red-by-sfr.fr

648 ms

sfr.jquery.js

479 ms

param.sfr.min.js

536 ms

jquery.noConflict.js

542 ms

Our browser made a total of 67 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Les-series-red-de-sfr.fr, 64% (43 requests) were made to Static.s-sfr.fr and 4% (3 requests) were made to Sfr.fr. The less responsive or slowest element that took the longest time to load (959 ms) relates to the external source Static.s-sfr.fr.

Page Optimization Overview & Recommendations

Page size can be reduced by 146.2 kB (9%)

Content Size

1.6 MB

After Optimization

1.4 MB

In fact, the total size of Les-series-red-de-sfr.fr main page is 1.6 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. 40% of websites need less resources to load. Images take 1.4 MB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 48.3 kB

  • Original 59.3 kB
  • After minification 45.1 kB
  • After compression 11.0 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 14.2 kB, which is 24% 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 48.3 kB or 82% of the original size.

Image Optimization

-5%

Potential reduce by 78.6 kB

  • Original 1.4 MB
  • After minification 1.4 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. Lesseries RED De SFR images are well optimized though.

JavaScript Optimization

-25%

Potential reduce by 19.3 kB

  • Original 77.6 kB
  • After minification 77.0 kB
  • After compression 58.3 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 19.3 kB or 25% of the original size.

Requests Breakdown

Number of requests can be reduced by 24 (41%)

Requests Now

59

After Optimization

35

The browser has sent 59 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Lesseries RED De SFR. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 19 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

les-series-red-de-sfr.fr accessibility score

81

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

Buttons do not have an accessible name

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.

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

les-series-red-de-sfr.fr best practices score

83

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

SEO Factors

les-series-red-de-sfr.fr SEO score

93

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

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

    FR

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Les-series-red-de-sfr.fr can be misinterpreted by Google and other search engines. Our service has detected that French 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 Les-series-red-de-sfr.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 Lesseries RED De SFR. 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: