https://linuxfr.org
Lighthouse Mobile
· 0 checks — Mobile Lighthouse audit -- Performance, Accessibility, Best Practices, and SEO category breakdown.SCORE
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GRADE
FIX
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REVIEW
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PASS
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INFO
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Detailed Report
Audit breakdown by category with detailed findings.
84
Performance
Insights
Remove large, duplicate JavaScript modules from bundles to reduce unnecessary bytes consumed by network activity.
Why this matters
Performance issues directly impact user engagement and conversion rates.
Polyfills and transforms enable older browsers to use new JavaScript features. However, many aren't necessary for modern browsers. Consider modifying your JavaScript build process to not transpile Baseline features, unless you know you must support older browsers. Learn why most sites can deploy ES6+ code without transpiling
Why this matters
Performance issues directly impact user engagement and conversion rates.
3rd party code can significantly impact load performance. Reduce and defer loading of 3rd party code to prioritize your page's content.
Why this matters
Performance issues directly impact user engagement and conversion rates.
A long cache lifetime can speed up repeat visits to your page. Learn more about caching.
Why this matters
Performance issues directly impact user engagement and conversion rates.
| Request | Cache TTL | Transfer Size |
|---|---|---|
| /assets/application-ea18d32113d34928f73c40c3e7e4aee7b5cc7... | 864000.0 s | 143.6 KiB |
| /assets/application-c62860ac5f0522aa8cd2bb9e4162050f55f36... | 864000.0 s | 75.6 KiB |
| linuxfr.org/images/logos/logo-linuxfr-cadre-dehors.png | 864000.0 s | 16.3 KiB |
| linuxfr.org/images/sections/16.png | 864000.0 s | 13.7 KiB |
| linuxfr.org/images/sections/67.png | 864000.0 s | 8.4 KiB |
| linuxfr.org/images/sections/50.png | 864000.0 s | 7.1 KiB |
| linuxfr.org/images/sections/62.png | 864000.0 s | 4.3 KiB |
| linuxfr.org/images/sections/85.png | 864000.0 s | 3.3 KiB |
| linuxfr.org/images/sections/22.png | 864000.0 s | 3.1 KiB |
| linuxfr.org/images/sections/9.png | 864000.0 s | 3.0 KiB |
| linuxfr.org/images/icones/download.svg | 864000.0 s | 2.8 KiB |
| linuxfr.org/images/sections/46.png | 864000.0 s | 2.4 KiB |
| linuxfr.org/images/sections/1.png | 864000.0 s | 2.3 KiB |
| linuxfr.org/images/contrib/RonRonnement/coin-transparent.png | 864000.0 s | 396 B |
Consider setting font-display to swap or optional to ensure text is consistently visible. swap can be further optimized to mitigate layout shifts with font metric overrides.
Why this matters
Performance issues directly impact user engagement and conversion rates.
| URL | Est Savings |
|---|---|
| linuxfr.org/fonts/Merriweather-Regular.woff2 | 405 ms |
| linuxfr.org/fonts/Lato-Regular.woff2 | 330 ms |
A forced reflow occurs when JavaScript queries geometric properties (such as offsetWidth) after styles have been invalidated by a change to the DOM state. This can result in poor performance. Learn more about forced reflows and possible mitigations.
Why this matters
Performance issues directly impact user engagement and conversion rates.
headings: [map[key:source label:Source valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]
items: [map[reflowTime:34.955 source:map[type:text value:[unattributed]]]]
Avoid chaining critical requests by reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.
Why this matters
Performance issues directly impact user engagement and conversion rates.
description: [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints help the browser establish a connection earlier in the page load, saving time when the first request for that origin is made. The following are the origins that the page preconnected to.
title: Preconnected origins
value: no origins were preconnected
description: Add [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints to your most important origins, but try to use no more than 4.
title: Preconnect candidates
value: No additional origins are good candidates for preconnecting
Requests are blocking the page's initial render, which may delay LCP. Deferring or inlining can move these network requests out of the critical path.
Why this matters
Performance issues directly impact user engagement and conversion rates.
| URL | Transfer Size | Duration |
|---|---|---|
| /assets/application-c62860ac5f0522aa8cd2bb9e4162050f55f36... | 75.6 KiB | 450 ms |
Reducing the download time of images can improve the perceived load time of the page and LCP. Learn more about optimizing image size
Why this matters
Performance issues directly impact user engagement and conversion rates.
| URL | Resource Size | Est Savings | |
|---|---|---|---|
Graphisme/photo div.figures > figure.image > a > img | linuxfr.org/images/sections/16.png | 13.4 KiB | 12.0 KiB |
LinuxFr.org body#home-index > aside#sidebar > header#branding > h1 | linuxfr.org/images/logos/logo-linuxfr-cadre-dehors.png | 16.0 KiB | 9.9 KiB |
Éducation div.figures > figure.image > a > img | linuxfr.org/images/sections/67.png | 8.1 KiB | 6.8 KiB |
Technologie div.figures > figure.image > a > img | linuxfr.org/images/sections/50.png | 6.8 KiB | 6.2 KiB |
These insights are also available in the Chrome DevTools Performance Panel - record a trace to view more detailed information.
Time to Interactive is the amount of time it takes for the page to become fully interactive. Learn more about the Time to Interactive metric.
Why this matters
Performance issues directly impact user engagement and conversion rates.
TTI
Diagnostics
Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. Learn how to reduce unused CSS.
Why this matters
Performance issues directly impact user engagement and conversion rates.
Estimated savings: 300 ms 62.2 KiB
| URL | Transfer Size | Est Savings |
|---|---|---|
| /assets/application-c62860ac5f0522aa8cd2bb9e4162050f55f36... | 75.3 KiB | 62.2 KiB |
Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. Learn how to reduce unused JavaScript.
Why this matters
Performance issues directly impact user engagement and conversion rates.
Estimated savings: 450 ms 98.5 KiB
| URL | Transfer Size | Est Savings |
|---|---|---|
| /assets/application-ea18d32113d34928f73c40c3e7e4aee7b5cc7... | 143.1 KiB | 98.5 KiB |
Set an explicit width and height on image elements to reduce layout shifts and improve CLS. Learn how to set image dimensions
Why this matters
Performance issues directly impact user engagement and conversion rates.
| URL | |
|---|---|
Graphisme/photo div.figures > figure.image > a > img | linuxfr.org/images/sections/16.png |
Éducation div.figures > figure.image > a > img | linuxfr.org/images/sections/67.png |
Open Data div.figures > figure.image > a > img | linuxfr.org/images/sections/85.png |
Internet div.figures > figure.image > a > img | linuxfr.org/images/sections/22.png |
Technologie div.figures > figure.image > a > img | linuxfr.org/images/sections/50.png |
Linux div.figures > figure.image > a > img | linuxfr.org/images/sections/1.png |
Sécurité div.figures > figure.image > a > img | linuxfr.org/images/sections/46.png |
Communauté div.figures > figure.image > a > img | linuxfr.org/images/sections/9.png |
Bureautique div.figures > figure.image > a > img | linuxfr.org/images/sections/62.png |
Communauté div.figures > figure.image > a > img | linuxfr.org/images/sections/9.png |
Bureautique div.figures > figure.image > a > img | linuxfr.org/images/sections/62.png |
Communauté div.figures > figure.image > a > img | linuxfr.org/images/sections/9.png |
Communauté div.figures > figure.image > a > img | linuxfr.org/images/sections/9.png |
Communauté div.figures > figure.image > a > img | linuxfr.org/images/sections/9.png |
Communauté div.figures > figure.image > a > img | linuxfr.org/images/sections/9.png |
Communauté div.figures > figure.image > a > img | linuxfr.org/images/sections/9.png |
Une steam deck sur une steam machine originale affichant RADV inside! div.content > p > a > img | /img/68747470733a2f2f646c2e696c6c776965636b7a2e6e65742f62... |
Adieu Windows, Bonjour le Libre ! section#container > aside.banner > a > img | /img/68747470733a2f2f616469657577696e646f77732e617072696c... |
Libre en Fête div.content > p > a > img | /img/68747470733a2f2f7777772e6c696272652d656e2d666574652e... |
Libre en Fête div.content > p > a > img | /img/68747470733a2f2f7777772e6c696272652d656e2d666574652e... |
Image de démarrage de GIMP 3.2, par Mark McCaughrean (CC by-sa 4.0) article.node > div.content > p > img | /img/68747470733a2f2f7777772e67696d702e6f72672f6e6577732f... |
Projets Libres x FPOSM : la fédération des professionnels d'OpenStreetMap article.node > div.content > p > img | /img/68747470733a2f2f7069632e696e66696e692e66722f33704457... |
Libre en Fête div.content > p > a > img | /img/68747470733a2f2f7777772e6c696272652d656e2d666574652e... |
More information about the performance of your application. These numbers don't directly affect the Performance score.
●Max Potential First Input Delay 100 ms
●Layout shift culprits
●Document request latency
●Optimize DOM size
●LCP breakdown
●Modern HTTP
●Optimize viewport for mobile
●Minify CSS
●Minify JavaScript
●Avoids enormous network payloads Total size was 589 KiB
●JavaScript execution time 0.1 s
●Minimizes main-thread work 0.9 s
●Avoid long main-thread tasks 3 long tasks found
●Page didn't prevent back/forward cache restoration
●Network Requests
●Network Round Trip Times 80 ms
●Server Backend Latencies 220 ms
●Tasks
●Diagnostics
●Metrics
●Screenshot Thumbnails
●Final Screenshot
●Script Treemap Data
●Resources Summary
●Avoid multiple page redirects
●Initial server response time was short Root document took 260 ms
●Avoid large layout shifts 2 layout shifts found
○INP breakdown
○LCP request discovery
○User Timing marks and measures
○Avoid non-composited animations
91
Accessibility
These checks highlight opportunities to improve the accessibility of your web app. Automatic detection can only detect a subset of issues and does not guarantee the accessibility of your web app, so manual testing is also encouraged.
Contrast
Low-contrast text is difficult or impossible for many users to read. Learn how to provide sufficient color contrast.
Why this matters
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
Se connecter body#home-index > aside#sidebar > div.login > h1 |
Posté par Thomas Debesse (site web personnel, Mastodon) le 06 mars 2026 à 20:09. article.node > header > div.meta > span.posted_by_spanblock |
Thomas Debesse header > div.meta > span.posted_by_spanblock > a |
site web personnel header > div.meta > span.posted_by_spanblock > a |
Mastodon header > div.meta > span.posted_by_spanblock > a |
le 06 mars 2026 à 20:09 header > div.meta > span.posted_by_spanblock > time.updated |
Édité par 7 personnes. article.node > header > div.meta > span.edited_by_spanblock |
7 personnes div.meta > span.edited_by_spanblock > span.edited_by > a |
Modéré par Ysabeau 🧶. article.node > header > div.meta > span.moderated_by_spanblock |
Ysabeau 🧶 header > div.meta > span.moderated_by_spanblock > a |
Licence CC By‑SA. article.node > header > div.meta > a |
Trier par : datenoteintérêtdernier commentaire body#home-index > section#container > nav.toolbox > div.order_navbar |
date div.order_navbar > ul > li > a |
note div.order_navbar > ul > li > a |
intérêt nav.toolbox > div.order_navbar > ul > li |
dernier commentaire div.order_navbar > ul > li > a |
Posté par Moonz le 06 avril 2026 à 17:20. article.node > header > div.meta > span.posted_by_spanblock |
Moonz header > div.meta > span.posted_by_spanblock > a |
le 06 avril 2026 à 17:20 header > div.meta > span.posted_by_spanblock > time.updated |
Édité par volts et BAud. article.node > header > div.meta > span.edited_by_spanblock |
volts et BAud header > div.meta > span.edited_by_spanblock > span.edited_by |
volts div.meta > span.edited_by_spanblock > span.edited_by > a |
BAud div.meta > span.edited_by_spanblock > span.edited_by > a |
Modéré par Benoît Sibaud. article.node > header > div.meta > span.moderated_by_spanblock |
Benoît Sibaud header > div.meta > span.moderated_by_spanblock > a |
Licence CC By‑SA. article.node > header > div.meta > a |
Posté par Collectif le 05 avril 2026 à 21:02. article.node > header > div.meta > span.posted_by_spanblock |
Collectif header > div.meta > span.posted_by_spanblock > a |
le 05 avril 2026 à 21:02 header > div.meta > span.posted_by_spanblock > time.updated |
Édité par Benoît Sibaud et Ysabeau 🧶. article.node > header > div.meta > span.edited_by_spanblock |
Benoît Sibaud et Ysabeau 🧶 header > div.meta > span.edited_by_spanblock > span.edited_by |
Benoît Sibaud div.meta > span.edited_by_spanblock > span.edited_by > a |
Ysabeau 🧶 div.meta > span.edited_by_spanblock > span.edited_by > a |
Modéré par Ysabeau 🧶. article.node > header > div.meta > span.moderated_by_spanblock |
Ysabeau 🧶 header > div.meta > span.moderated_by_spanblock > a |
Licence CC By‑SA. article.node > header > div.meta > a |
Posté par yinqi le 04 avril 2026 à 16:03. article.node > header > div.meta > span.posted_by_spanblock |
yinqi header > div.meta > span.posted_by_spanblock > a |
le 04 avril 2026 à 16:03 header > div.meta > span.posted_by_spanblock > time.updated |
Édité par Benoît Sibaud. article.node > header > div.meta > span.edited_by_spanblock |
Benoît Sibaud div.meta > span.edited_by_spanblock > span.edited_by > a |
Modéré par Benoît Sibaud. article.node > header > div.meta > span.moderated_by_spanblock |
Benoît Sibaud header > div.meta > span.moderated_by_spanblock > a |
Licence CC By‑SA. article.node > header > div.meta > a |
Posté par yinqi le 02 avril 2026 à 12:29. article.node > header > div.meta > span.posted_by_spanblock |
yinqi header > div.meta > span.posted_by_spanblock > a |
le 02 avril 2026 à 12:29 header > div.meta > span.posted_by_spanblock > time.updated |
Édité par Benoît Sibaud et Ysabeau 🧶. article.node > header > div.meta > span.edited_by_spanblock |
Benoît Sibaud et Ysabeau 🧶 header > div.meta > span.edited_by_spanblock > span.edited_by |
Benoît Sibaud div.meta > span.edited_by_spanblock > span.edited_by > a |
Ysabeau 🧶 div.meta > span.edited_by_spanblock > span.edited_by > a |
Modéré par Ysabeau 🧶. article.node > header > div.meta > span.moderated_by_spanblock |
Ysabeau 🧶 header > div.meta > span.moderated_by_spanblock > a |
Licence CC By‑SA. article.node > header > div.meta > a |
Posté par Nicolas Lœuillet (site web personnel, Mastodon) le 01 avril 2026 à 12… article.node > header > div.meta > span.posted_by_spanblock |
Nicolas Lœuillet header > div.meta > span.posted_by_spanblock > a |
site web personnel header > div.meta > span.posted_by_spanblock > a |
Mastodon header > div.meta > span.posted_by_spanblock > a |
le 01 avril 2026 à 12:19 header > div.meta > span.posted_by_spanblock > time.updated |
Édité par Ysabeau 🧶, Benoît Sibaud et Xavier Teyssier. article.node > header > div.meta > span.edited_by_spanblock |
Ysabeau 🧶, Benoît Sibaud et Xavier Teyssier header > div.meta > span.edited_by_spanblock > span.edited_by |
Ysabeau 🧶 div.meta > span.edited_by_spanblock > span.edited_by > a |
Benoît Sibaud div.meta > span.edited_by_spanblock > span.edited_by > a |
Xavier Teyssier div.meta > span.edited_by_spanblock > span.edited_by > a |
Modéré par Xavier Teyssier. article.node > header > div.meta > span.moderated_by_spanblock |
Xavier Teyssier header > div.meta > span.moderated_by_spanblock > a |
Licence CC By‑SA. article.node > header > div.meta > a |
Posté par Ysabeau 🧶 (courriel, site web personnel, Mastodon) le 31 mars 2026 à … article.node > header > div.meta > span.posted_by_spanblock |
Ysabeau 🧶 header > div.meta > span.posted_by_spanblock > a |
courriel header > div.meta > span.posted_by_spanblock > a |
site web personnel header > div.meta > span.posted_by_spanblock > a |
Mastodon header > div.meta > span.posted_by_spanblock > a |
le 31 mars 2026 à 22:12 header > div.meta > span.posted_by_spanblock > time.updated |
Édité par Xavier Teyssier et Benoît Sibaud. article.node > header > div.meta > span.edited_by_spanblock |
Xavier Teyssier et Benoît Sibaud header > div.meta > span.edited_by_spanblock > span.edited_by |
Xavier Teyssier div.meta > span.edited_by_spanblock > span.edited_by > a |
Benoît Sibaud div.meta > span.edited_by_spanblock > span.edited_by > a |
Modéré par Benoît Sibaud. article.node > header > div.meta > span.moderated_by_spanblock |
Benoît Sibaud header > div.meta > span.moderated_by_spanblock > a |
Licence CC By‑SA. article.node > header > div.meta > a |
Posté par echarp (site web personnel, Mastodon) le 31 mars 2026 à 09:01. article.node > header > div.meta > span.posted_by_spanblock |
echarp header > div.meta > span.posted_by_spanblock > a |
site web personnel header > div.meta > span.posted_by_spanblock > a |
Mastodon header > div.meta > span.posted_by_spanblock > a |
le 31 mars 2026 à 09:01 header > div.meta > span.posted_by_spanblock > time.updated |
Édité par Benoît Sibaud. article.node > header > div.meta > span.edited_by_spanblock |
Benoît Sibaud div.meta > span.edited_by_spanblock > span.edited_by > a |
Modéré par Pierre Jarillon. article.node > header > div.meta > span.moderated_by_spanblock |
Pierre Jarillon header > div.meta > span.moderated_by_spanblock > a |
Licence CC By‑SA. article.node > header > div.meta > a |
Posté par Collectif le 29 mars 2026 à 16:39. article.node > header > div.meta > span.posted_by_spanblock |
Collectif header > div.meta > span.posted_by_spanblock > a |
le 29 mars 2026 à 16:39 header > div.meta > span.posted_by_spanblock > time.updated |
Édité par Benoît Sibaud et Ysabeau 🧶. article.node > header > div.meta > span.edited_by_spanblock |
Benoît Sibaud et Ysabeau 🧶 header > div.meta > span.edited_by_spanblock > span.edited_by |
Benoît Sibaud div.meta > span.edited_by_spanblock > span.edited_by > a |
Ysabeau 🧶 div.meta > span.edited_by_spanblock > span.edited_by > a |
Modéré par Ysabeau 🧶. article.node > header > div.meta > span.moderated_by_spanblock |
Ysabeau 🧶 header > div.meta > span.moderated_by_spanblock > a |
Licence CC By‑SA. article.node > header > div.meta > a |
Posté par esques le 28 mars 2026 à 17:38. article.node > header > div.meta > span.posted_by_spanblock |
esques header > div.meta > span.posted_by_spanblock > a |
le 28 mars 2026 à 17:38 header > div.meta > span.posted_by_spanblock > time.updated |
Édité par Benoît Sibaud, Pierre Jarillon et Ysabeau 🧶. article.node > header > div.meta > span.edited_by_spanblock |
Benoît Sibaud, Pierre Jarillon et Ysabeau 🧶 header > div.meta > span.edited_by_spanblock > span.edited_by |
Benoît Sibaud div.meta > span.edited_by_spanblock > span.edited_by > a |
Pierre Jarillon div.meta > span.edited_by_spanblock > span.edited_by > a |
Ysabeau 🧶 div.meta > span.edited_by_spanblock > span.edited_by > a |
Modéré par Julien Jorge. article.node > header > div.meta > span.moderated_by_spanblock |
Julien Jorge header > div.meta > span.moderated_by_spanblock > a |
Licence CC By‑SA. article.node > header > div.meta > a |
Posté par Collectif le 27 mars 2026 à 20:33. article.node > header > div.meta > span.posted_by_spanblock |
Collectif header > div.meta > span.posted_by_spanblock > a |
le 27 mars 2026 à 20:33 header > div.meta > span.posted_by_spanblock > time.updated |
Édité par 5 personnes. article.node > header > div.meta > span.edited_by_spanblock |
5 personnes div.meta > span.edited_by_spanblock > span.edited_by > a |
Modéré par Benoît Sibaud. article.node > header > div.meta > span.moderated_by_spanblock |
Benoît Sibaud header > div.meta > span.moderated_by_spanblock > a |
Licence CC By‑SA. article.node > header > div.meta > a |
Posté par Frederic Couchet le 26 mars 2026 à 17:02. article.node > header > div.meta > span.posted_by_spanblock |
Frederic Couchet header > div.meta > span.posted_by_spanblock > a |
le 26 mars 2026 à 17:02 header > div.meta > span.posted_by_spanblock > time.updated |
Édité par Benoît Sibaud. article.node > header > div.meta > span.edited_by_spanblock |
Benoît Sibaud div.meta > span.edited_by_spanblock > span.edited_by > a |
Modéré par Benoît Sibaud. article.node > header > div.meta > span.moderated_by_spanblock |
Benoît Sibaud header > div.meta > span.moderated_by_spanblock > a |
Licence CC By‑SA. article.node > header > div.meta > a |
Posté par Nicolas Pettiaux le 26 mars 2026 à 07:45. article.node > header > div.meta > span.posted_by_spanblock |
Nicolas Pettiaux header > div.meta > span.posted_by_spanblock > a |
le 26 mars 2026 à 07:45 header > div.meta > span.posted_by_spanblock > time.updated |
Édité par Arkem. article.node > header > div.meta > span.edited_by_spanblock |
Arkem div.meta > span.edited_by_spanblock > span.edited_by > a |
Modéré par Benoît Sibaud. article.node > header > div.meta > span.moderated_by_spanblock |
Benoît Sibaud header > div.meta > span.moderated_by_spanblock > a |
Licence CC By‑SA. article.node > header > div.meta > a |
Posté par Etienne Gonnu le 26 mars 2026 à 07:44. article.node > header > div.meta > span.posted_by_spanblock |
Etienne Gonnu header > div.meta > span.posted_by_spanblock > a |
le 26 mars 2026 à 07:44 header > div.meta > span.posted_by_spanblock > time.updated |
Modéré par Benoît Sibaud. article.node > header > div.meta > span.moderated_by_spanblock |
Benoît Sibaud header > div.meta > span.moderated_by_spanblock > a |
Licence CC By‑SA. article.node > header > div.meta > a |
Posté par Podcast Projets Libres (site web personnel, Mastodon) le 24 mars 2026… article.node > header > div.meta > span.posted_by_spanblock |
Podcast Projets Libres header > div.meta > span.posted_by_spanblock > a |
site web personnel header > div.meta > span.posted_by_spanblock > a |
Mastodon header > div.meta > span.posted_by_spanblock > a |
le 24 mars 2026 à 09:42 header > div.meta > span.posted_by_spanblock > time.updated |
Édité par Benoît Sibaud. article.node > header > div.meta > span.edited_by_spanblock |
Benoît Sibaud div.meta > span.edited_by_spanblock > span.edited_by > a |
Modéré par Pierre Jarillon. article.node > header > div.meta > span.moderated_by_spanblock |
Pierre Jarillon header > div.meta > span.moderated_by_spanblock > a |
Licence CC By‑SA. article.node > header > div.meta > a |
Posté par Collectif le 23 mars 2026 à 07:38. article.node > header > div.meta > span.posted_by_spanblock |
Collectif header > div.meta > span.posted_by_spanblock > a |
le 23 mars 2026 à 07:38 header > div.meta > span.posted_by_spanblock > time.updated |
Édité par Benoît Sibaud. article.node > header > div.meta > span.edited_by_spanblock |
Benoît Sibaud div.meta > span.edited_by_spanblock > span.edited_by > a |
Modéré par Benoît Sibaud. article.node > header > div.meta > span.moderated_by_spanblock |
Benoît Sibaud header > div.meta > span.moderated_by_spanblock > a |
Licence CC By‑SA. article.node > header > div.meta > a |
10 nav.toolbox > nav.pagination > span.page > a |
11 nav.toolbox > nav.pagination > span.page > a |
Suivant › nav.toolbox > nav.pagination > span.next > a |
Dernier › nav.toolbox > nav.pagination > span.last > a |
Revenir en haut de page section#container > footer > p > a.scroll |
These are opportunities to improve the legibility of your content.
Navigation
Properly ordered headings that do not skip levels convey the semantic structure of the page, making it easier to navigate and understand when using assistive technologies. Learn more about heading order.
Why this matters
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
NdM : La date initialement prévue était jeudi 02 avril. Elle a été reportée au … main#contents > article.node > div.content > h3#toc-ndm--la-date-initialement-prévue-était-jeudi-02-avril-elle-a-été-reportée-au-10-même-lieu-même-heure |
ÉducaLibre 2026 : appel à propositions d'ateliers, conférences et tables rondes main#contents > article.node > div.content > h3#toc-Éducalibre-2026--appel-à-propositions-dateliers-conférences-et-tables-rondes |
These are opportunities to improve keyboard navigation in your application.
Best practices
Touch targets with sufficient size and spacing help users who may have difficulty targeting small controls to activate the targets. Learn more about touch targets.
Why this matters
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
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Liens nav#site > ul > li > a |
Forums nav#site > ul > li > a |
Rédaction nav#site > ul > li > a |
🎙️ Projets Libres nav#site > ul > li > a#podcast |
nav#site > form > div.searchbox > input#query nav#site > form > div.searchbox > input#query |
Éditions D-BookeR section#friends > ul > li > a |
Éditions Eyrolles section#friends > ul > li > a |
Éditions Diamond section#friends > ul > li > a |
Éditions ENI section#friends > ul > li > a |
Lea-Linux section#friends > ul > li > a |
En Vente Libre section#friends > ul > li > a |
Grafik Plus section#friends > ul > li > a |
Mentions légales nav#about_us > ul > li > a |
Faire un don nav#about_us > ul > li > a |
L’équipe de LinuxFr.org nav#about_us > ul > li > a |
Informations sur le site nav#about_us > ul > li > a |
Aide / Foire aux questions nav#about_us > ul > li > a |
Suivi des suggestions et bogues nav#about_us > ul > li > a |
These items highlight common accessibility best practices.
○Interactive controls are keyboard focusable
○Interactive elements indicate their purpose and state
○The page has a logical tab order
○Visual order on the page follows DOM order
○User focus is not accidentally trapped in a region
○The user's focus is directed to new content added to the page
○HTML5 landmark elements are used to improve navigation
○Offscreen content is hidden from assistive technology
○Custom controls have associated labels
○Custom controls have ARIA roles
●`[aria-*]` attributes match their roles
●`[aria-hidden="true"]` is not present on the document `<body>`
●`[role]`s have all required `[aria-*]` attributes
●`[role]` values are valid
●`[aria-*]` attributes have valid values
●`[aria-*]` attributes are valid and not misspelled
●Image elements have `[alt]` attributes
●Input buttons have discernible text.
●Form elements have associated labels
●`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
●ARIA attributes are used as specified for the element's role
●Elements use only permitted ARIA attributes
●Document has a `<title>` element
●`<html>` element has a `[lang]` attribute
●`<html>` element has a valid value for its `[lang]` attribute
●Links are distinguishable without relying on color.
●Links have a discernible name
●Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
●List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements
●Skip links are focusable.
●Document has a main landmark.
●Deprecated ARIA roles were not used
●Image elements do not have `[alt]` attributes that are redundant text.
●Identical links have the same purpose.
○`[accesskey]` values are unique
○`button`, `link`, and `menuitem` elements have accessible names
○Elements with `role="dialog"` or `role="alertdialog"` have accessible names.
○`[aria-hidden="true"]` elements do not contain focusable descendents
○ARIA input fields have accessible names
○ARIA `meter` elements have accessible names
○ARIA `progressbar` elements have accessible names
○Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
○`[role]`s are contained by their required parent element
○Elements with the `role=text` attribute do not have focusable descendents.
○ARIA toggle fields have accessible names
○ARIA `tooltip` elements have accessible names
○ARIA `treeitem` elements have accessible names
○Buttons have an accessible name
○The page contains a heading, skip link, or landmark region
○`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
○Definition list items are wrapped in `<dl>` elements
○ARIA IDs are unique
○No form fields have multiple labels
○`<frame>` or `<iframe>` elements have a title
○`<html>` element has an `[xml:lang]` attribute with the same base language as the `[lang]` attribute.
○`<input type="image">` elements have `[alt]` text
○The document does not use `<meta http-equiv="refresh">`
○`<object>` elements have alternate text
○Select elements have associated label elements.
○No element has a `[tabindex]` value greater than 0
○Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
○`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
○`[lang]` attributes have a valid value
○`<video>` elements contain a `<track>` element with `[kind="captions"]`
○Tables have different content in the summary attribute and `<caption>`.
○All heading elements contain content.
○Uses ARIA roles only on compatible elements
○Elements with visible text labels have matching accessible names.
○Tables use `<caption>` instead of cells with the `[colspan]` attribute to indicate a caption.
○`<td>` elements in a large `<table>` have one or more table headers.
100
Best Practices
●Uses HTTPS
●Avoids deprecated APIs
●Avoids third-party cookies
●Allows users to paste into input fields
●Avoids requesting the geolocation permission on page load
●Avoids requesting the notification permission on page load
●Displays images with correct aspect ratio
●Serves images with appropriate resolution
●Page has the HTML doctype
●Properly defines charset
●No browser errors logged to the console
●No issues in the `Issues` panel in Chrome Devtools
●Ensure CSP is effective against XSS attacks
●Use a strong HSTS policy
●Ensure proper origin isolation with COOP
●Mitigate clickjacking with XFO or CSP
●Mitigate DOM-based XSS with Trusted Types
●Detected JavaScript libraries
●Page has valid source maps
○Redirects HTTP traffic to HTTPS
100
SEO
These checks ensure that your page is following basic search engine optimization advice. There are many additional factors Lighthouse does not score here that may affect your search ranking, including performance on Core Web Vitals. Learn more about Google Search Essentials.
○Structured data is valid
●Page isn’t blocked from indexing
●Document has a `<title>` element
●Document has a meta description
●Page has successful HTTP status code
●Links have descriptive text
●Links are crawlable
●robots.txt is valid
●Image elements have `[alt]` attributes
●Document has a valid `hreflang`
○Document has a valid `rel=canonical`