Sfr.fr SFR | Téléphone, Forfait Mobile, Internet + Fibre, Sport, Play, Presse, News
Découvrez les offres Mobile, TV, Internet et Fibre de SFR. Choisissez le forfait qui répond à vos besoins et retrouvez aussi le meilleur des contenus ...
sfr.fr Mobile Performance
12/100
These metrics represent real-world Chrome users experience viewing sfr.fr on mobile devices. Reports are focused on loading performance and other critical factors that most affect user experience. Follow our guide to track, optimize, and improve the quality of your web pages.
User Loading Experience
Cumulative Layout Shift
First Input Delay
First Contentful Paint
Largest Contentful Paint
Metrics
Largest Contentful Paint0/100 16.2 s
Largest Contentful Paint marks the time at which the largest text or image is painted. Learn More
Total Blocking Time1/100 2,110 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds. Learn more.
Time to Interactive5/100 16.9 s
Time to interactive is the amount of time it takes for the page to become fully interactive. Learn more.
Speed Index11/100 9.8 s
Speed Index shows how quickly the contents of a page are visibly populated. Learn more.
Cumulative Layout Shift28/100 0.383
Cumulative Layout Shift measures the movement of visible elements within the viewport. Learn more.
First Contentful Paint56/100 3.8 s
First Contentful Paint marks the time at which the first text or image is painted. Learn more.
Should Fix (19)
Opportunities
These suggestions can help your page load faster. They don't directly affect the Performance score.
Serve images in next-gen formats
Potential savings of 338 KiB
1,950 ms
Remove unused JavaScript
Potential savings of 312 KiB
1,680 ms
Minify JavaScript
Potential savings of 310 KiB
1,680 ms
Efficiently encode images
Potential savings of 118 KiB
750 ms
Remove unused CSS
Potential savings of 47 KiB
450 ms
Reduce initial server response time
Root document took 880 ms
278 ms
Eliminate render-blocking resources
Potential savings of 150 ms
150 ms
Enable text compression
Potential savings of 10 KiB
150 ms
Diagnostics
More information about the performance of your application. These numbers don't directly affect the Performance score.
Does not use passive listeners to improve scrolling performance
Minimize main-thread work
15.9 s
Serve static assets with an efficient cache policy
76 resources found
Reduce JavaScript execution time
5.7 s
Avoid an excessive DOM size
1,163 elements
Avoid long main-thread tasks
20 long tasks found
Avoid chaining critical requests
9 chains found
Avoid large layout shifts
5 elements found
User Timing marks and measures
28 user timings
Keep request counts low and transfer sizes small
95 requests • 1,791 KiB
Largest Contentful Paint element
1 element found
Passed Audits (10)
Defer offscreen images
Potential savings of 21 KiB
All text remains visible during webfont loads
Preconnect to required origins
Avoids enormous network payloads
Total size was 1,791 KiB
Avoids `document.write()`
Minify CSS
Properly size images
Use video formats for animated content
Preload key requests
Avoid multiple page redirects
Potential savings of 630 ms
sfr.fr Mobile SEO
84/100
These checks ensure that your page is optimized for search engine results ranking. There are additional factors Lighthouse does not check that may affect your search ranking. Learn more. Run these additional validators on your site to check additional SEO best practices.
Should Fix (3)
Crawling and Indexing
To appear in search results, crawlers need access to your app.
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.
Tap targets are not sized appropriately
77% appropriately sized tap targets
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Image elements do not have `[alt]` attributes
Passed Audits (11)
robots.txt is valid
Document uses legible font sizes
82.84% legible text
Page has successful HTTP status code
Page isn’t blocked from indexing
Document has a valid `hreflang`
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
Document has a meta description
Document has a `<title>` element
Document avoids plugins
Document has a valid `rel=canonical`
Links have descriptive text
sfr.fr Mobile Best Practices
69/100
These checks highlight opportunities to improve the overall code health of sfr.fr mobile page. Current recommendations will help to make your page fast and secure, to create a good user experience and to avoid deprecated technologies.
Should Fix (4)
Trust and Safety
Does not use HTTPS
1 insecure request found
Includes front-end JavaScript libraries with known security vulnerabilities
4 vulnerabilities detected
Links to cross-origin destinations are unsafe
User Experience
Serves images with low resolution
Passed Audits (10)
Avoids requesting the geolocation permission on page load
Displays images with correct aspect ratio
No browser errors logged to the console
Avoids requesting the notification permission on page load
Page has the HTML doctype
Detected JavaScript libraries
Avoids Application Cache
Properly defines charset
Allows users to paste into password fields
Avoids deprecated APIs
sfr.fr Mobile Progressive Web App
64/100
These checks validate the aspects of a Progressive Web App. Learn more. These checks are required by the baseline PWA Checklist but are not automatically checked by Lighthouse. They do not affect your score but it's important that you verify them manually.
Should Fix (3)
Installable
Does not use HTTPS
1 insecure request found
PWA Optimized
Manifest doesn't have a maskable icon
Fast and reliable
Page load is not fast enough on mobile networks
Interactive at 16.9 s
Passed Audits (11)
Content is sized correctly for the viewport
Current page responds with a 200 when offline
Web app manifest meets the installability requirements
`start_url` responds with a 200 when offline
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
Sets a theme color for the address bar.
Configured for a custom splash screen
Redirects HTTP traffic to HTTPS
Registers a service worker that controls page and `start_url`
Contains some content when JavaScript is not available
Provides a valid `apple-touch-icon`
sfr.fr Mobile Accessibility
62/100
These checks highlight opportunities to improve the accessibility of your web app. Only a subset of accessibility issues can be automatically detected so manual testing is also encouraged. These items address areas which an automated testing tool cannot cover. Learn more in our guide on conducting an accessibility review.
Should Fix (9)
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.
`[aria-*]` attributes do not have valid values
ARIA input fields do not have accessible names
Navigation
These are opportunities to improve keyboard navigation in your application.
Heading elements are not in a sequentially-descending order
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.
Links do not have a discernible name
Form elements do not have associated labels
Image elements do not have `[alt]` attributes
Buttons do not have an accessible name
Contrast
These are opportunities to improve the legibility of your content.
Background and foreground colors do not have a sufficient contrast ratio.
Best practices
These items highlight common accessibility best practices.
`[user-scalable="no"]` is used in the `<meta name="viewport">` element or the `[maximum-scale]` attribute is less than 5.
Passed Audits (15)
Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
No element has a `[tabindex]` value greater than 0
`[role]` values are valid
Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
`<html>` element has a `[lang]` attribute
`[aria-*]` attributes match their roles
`[role]`s have all required `[aria-*]` attributes
`[role]`s are contained by their required parent element
The page contains a heading, skip link, or landmark region
Document has a `<title>` element
`<html>` element has a valid value for its `[lang]` attribute
`[aria-*]` attributes are valid and not misspelled
List items (`<li>`) are contained within `<ul>` or `<ol>` parent elements
`[aria-hidden="true"]` is not present on the document `<body>`
ARIA IDs are unique
Mobile Usability
97/100
These checks validate how easily a visitor can use sfr.fr on a mobile device. Test results include a list of any mobile usability problems. Mobile usability problems are issues that can affect a user that visits the page on a mobile (small screen) device, including small font sizes (which are hard to read on a small screen).
Should Fix (1)
Size tap targets appropriately
Passed Audits (4)
Avoid plugins
Configure the viewport
Size content to viewport
Use legible font sizes
Mobile Speed
47/100
These checks analyze the performance of sfr.fr on mobile devices and return PageSpeed score and information on how to improve the load time. What makes a good Progressive Web App?
Should Fix (8)
Eliminate render-blocking JavaScript and CSS in above-the-fold content
Avoid landing page redirects
Leverage browser caching
Optimize images
Minify CSS
Minify JavaScript
Enable compression
Minify HTML
Passed Audits (2)
Reduce server response time
Prioritize visible content
www.sfr.com
www.sfr.net
www.sfr.org
www.sfr.info
www.sfr.biz
www.sfr.us
www.sfr.mobi
www.fr.fr
www.sfr.fr
www.wfr.fr
www.swfr.fr
www.wsfr.fr
www.efr.fr
www.sefr.fr
www.esfr.fr
www.dfr.fr
www.sdfr.fr
www.dsfr.fr
www.zfr.fr
www.szfr.fr
www.zsfr.fr
www.xfr.fr
www.sxfr.fr
www.xsfr.fr
www.afr.fr
www.safr.fr
www.asfr.fr
www.sr.fr
www.scr.fr
www.sfcr.fr
www.scfr.fr
www.sdr.fr
www.sfdr.fr
www.srr.fr
www.sfrr.fr
www.srfr.fr
www.str.fr
www.sftr.fr
www.stfr.fr
www.sgr.fr
www.sfgr.fr
www.sgfr.fr
www.svr.fr
www.sfvr.fr
www.svfr.fr
www.sf.fr
www.sfe.fr
www.sfre.fr
www.sfer.fr
www.sfd.fr
www.sfrd.fr
www.sff.fr
www.sfrf.fr
www.sffr.fr
www.sft.fr
www.sfrt.fr
www.sfr.net
www.sfr.org
www.sfr.info
www.sfr.biz
www.sfr.us
www.sfr.mobi
www.fr.fr
www.sfr.fr
www.wfr.fr
www.swfr.fr
www.wsfr.fr
www.efr.fr
www.sefr.fr
www.esfr.fr
www.dfr.fr
www.sdfr.fr
www.dsfr.fr
www.zfr.fr
www.szfr.fr
www.zsfr.fr
www.xfr.fr
www.sxfr.fr
www.xsfr.fr
www.afr.fr
www.safr.fr
www.asfr.fr
www.sr.fr
www.scr.fr
www.sfcr.fr
www.scfr.fr
www.sdr.fr
www.sfdr.fr
www.srr.fr
www.sfrr.fr
www.srfr.fr
www.str.fr
www.sftr.fr
www.stfr.fr
www.sgr.fr
www.sfgr.fr
www.sgfr.fr
www.svr.fr
www.sfvr.fr
www.svfr.fr
www.sf.fr
www.sfe.fr
www.sfre.fr
www.sfer.fr
www.sfd.fr
www.sfrd.fr
www.sff.fr
www.sfrf.fr
www.sffr.fr
www.sft.fr
www.sfrt.fr