Lighthouse Desktop
· 0 checks — Desktop Lighthouse audit -- Performance, Accessibility, Best Practices, and SEO category breakdown.Detailed Report
Audit breakdown by category with detailed findings.
Performance
Insights
Remove large, duplicate JavaScript modules from bundles to reduce unnecessary bytes consumed by network activity.
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
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.
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.
Performance issues directly impact user engagement and conversion rates.
| Request | Cache TTL | Transfer Size |
|---|---|---|
| /4801407c-7ff1-4aed-aa34-71b05434f911/loader.js?target_ty... | 7200.0 s | 35.5 KiB |
| tag.aticdn.net/piano-analytics.js | 14400.0 s | 26.6 KiB |
| d2tbbu397eeoxj.cloudfront.net/consenthub/assets/consenthub_as_text.svg | 0.0 ms | 4.0 KiB |
| d2tbbu397eeoxj.cloudfront.net/website/logos/utiq-com.svg | 0.0 ms | 1.9 KiB |
| l.rtl.fr/sdk.js | 21600.0 s | 1.2 KiB |
Your first network request is the most important. Reduce its latency by avoiding redirects, ensuring a fast server response, and enabling text compression.
Performance issues directly impact user engagement and conversion rates.
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.
Performance issues directly impact user engagement and conversion rates.
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.
Performance issues directly impact user engagement and conversion rates.
Each subpart has specific improvement strategies. Ideally, most of the LCP time should be spent on loading the resources, not within delays.
Performance issues directly impact user engagement and conversion rates.
Optimize LCP by making the LCP image discoverable from the HTML immediately, and avoiding lazy-loading
Performance issues directly impact user engagement and conversion rates.
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.
Performance issues directly impact user engagement and conversion rates.
Reducing the download time of images can improve the perceived load time of the page and LCP. Learn more about optimizing image size
Performance issues directly impact user engagement and conversion rates.
| URL | Resource Size | Est Savings | |
|---|---|---|---|
RTL div.didomi-exterior-border > div.didomi-popup-container > div.didomi-popup-view > div.didomi-popup-notice-logo-container | gdpr.m6tech.net/images/banner-rtl-2025.jpg | 251.6 KiB | 204.7 KiB |
figure.col > a.at-class > picture > img.lazy figure.col > a.at-class > picture > img.lazy | /~c/840v560/rtl/www/1830798-l-attaquant-francais-du-bayer... | 125.7 KiB | 49.2 KiB |
div.row > div.program-card-item > picture > img.program-card-bg div.row > div.program-card-item > picture > img.program-card-bg | images.rtl.fr/~c/300v395/rtl/www/1776160-un-jour-une-vie-faustine-bollaert.jpg | 43.1 KiB | 23.8 KiB |
div.row > div.program-card-item > picture > img.program-card-bg div.row > div.program-card-item > picture > img.program-card-bg | static.rtl.fr/versions/www/7.0.397/img/util/grille/grille_rtl.jpg | 30.6 KiB | 22.9 KiB |
div.row > div.program-card-img > picture > img.img-responsive div.row > div.program-card-img > picture > img.img-responsive | /~c/395v395/rtl/www/1776662-le-grand-recit-andre-dussolli... | 46.1 KiB | 20.7 KiB |
div.row > div.program-card-item > picture > img.program-card-bg div.row > div.program-card-item > picture > img.program-card-bg | images.rtl.fr/~c/300v395/rtl/www/1776350-grosses-tetes-laurent-ruquier.jpg | 36.5 KiB | 17.2 KiB |
div.row > div.program-card-item > picture > img.program-card-bg div.row > div.program-card-item > picture > img.program-card-bg | images.rtl.fr/~c/300v395/rtl/www/1769730-jerome-florin-1250x1800.jpg | 34.2 KiB | 15.0 KiB |
div.row > div.program-card-item > picture > img.program-card-bg div.row > div.program-card-item > picture > img.program-card-bg | images.rtl.fr/~c/300v395/rtl/www/1771082-thomas-sotto.jpg | 32.3 KiB | 13.0 KiB |
div.row > div.program-card-item > picture > img.program-card-bg div.row > div.program-card-item > picture > img.program-card-bg | /~c/300v395/rtl/www/1776173-jean-alphonse-richard-l-heure... | 27.4 KiB | 8.1 KiB |
div.webradio-card-img > a.at-class > picture > img.img-responsive div.webradio-card-img > a.at-class > picture > img.img-responsive | images.rtl.fr/~c/115v115/rtl/www/1828747-tchernobyl-1986-2026.jpg | 9.1 KiB | 6.9 KiB |
div.webradio-card-img > button.at-class > picture > img.img-responsive div.webradio-card-img > button.at-class > picture > img.img-responsive | images.rtl.fr/~c/115v115/rtl/www/1826482-radio-digitale-celine-dion.jpg | 8.3 KiB | 6.2 KiB |
div.webradio-card-img > a.at-class > picture > img.img-responsive div.webradio-card-img > a.at-class > picture > img.img-responsive | images.rtl.fr/~c/115v115/rtl/www/1826442-les-secrets-de-donald-trump.jpg | 6.4 KiB | 4.2 KiB |
These insights are also available in the Chrome DevTools Performance Panel - record a trace to view more detailed information.
Redirects introduce additional delays before the page can be loaded. Learn how to avoid page redirects.
Performance issues directly impact user engagement and conversion rates.
| URL | Time Spent |
|---|---|
| rtl.fr/ | 903 ms |
| www.rtl.fr/ | 0.0 ms |
The maximum potential First Input Delay that your users could experience is the duration of the longest task. Learn more about the Maximum Potential First Input Delay metric.
Performance issues directly impact user engagement and conversion rates.
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.
Performance issues directly impact user engagement and conversion rates.
Diagnostics
Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. Learn how to reduce unused JavaScript.
Performance issues directly impact user engagement and conversion rates.
| URL | Transfer Size | Est Savings |
|---|---|---|
| static.rtl.fr/versions/www/7.0.397/rtl.js | 945.9 KiB | 561.6 KiB |
| www.googletagmanager.com/gtm.js?id=GTM-KJDT3TM | 144.7 KiB | 65.1 KiB |
| /sdk/d4911c3d5b4b9a80b40e05167f53d1b1e8da81f3/modern/sdk.... | 101.4 KiB | 44.9 KiB |
| static.gimii.fr/sdk-2.9.0.js | 33.2 KiB | 20.0 KiB |
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to minimize main-thread work
Performance issues directly impact user engagement and conversion rates.
| Category | Time Spent |
|---|---|
| Script Evaluation | 774 ms |
| Other | 528 ms |
| Style & Layout | 414 ms |
| Script Parsing & Compilation | 190 ms |
| Rendering | 146 ms |
| Parse HTML & CSS | 91 ms |
| Garbage Collection | 34 ms |
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.
Performance issues directly impact user engagement and conversion rates.
| URL | Transfer Size | Est Savings |
|---|---|---|
| @charset "UTF-8";.tippy-box[data-animation=fade][data-state=hidden]{opacity:0} … | 154.7 KiB | 145.5 KiB |
| 18.2 KiB | 14.9 KiB |
More information about the performance of your application. These numbers don't directly affect the Performance score.
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.
ARIA
Some ARIA parent roles must contain specific child roles to perform their intended accessibility functions. Learn more about roles and required children elements.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
Actu
Radios
Grille
Podcasts header#main-header > nav.nav-container > div.col-auto > ul.list-unstyled |
When a `progressbar` element doesn't have an accessible name, screen readers announce it with a generic name, making it unusable for users who rely on screen readers. Learn how to label `progressbar` elements.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
div.col > header > div.order-2 > div.progress-bar div.col > header > div.order-2 > div.progress-bar |
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.
Names and labels
When a button doesn't have an accessible name, screen readers announce it as "button", making it unusable for users who rely on screen readers. Learn how to make buttons more accessible.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
div.webradio-card-slider > div.webradio-card-container > div.webradio-card-img > button.at-class div.webradio-card-slider > div.webradio-card-container > div.webradio-card-img > button.at-class |
div.webradio-card-slider > div.webradio-card-container > div.webradio-card-img > button.at-class div.webradio-card-slider > div.webradio-card-container > div.webradio-card-img > button.at-class |
div.webradio-card-slider > div.webradio-card-container > div.webradio-card-img > button.at-class div.webradio-card-slider > div.webradio-card-container > div.webradio-card-img > button.at-class |
Informative elements should aim for short, descriptive alternate text. Decorative elements can be ignored with an empty alt attribute. Learn more about the `alt` attribute.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
div.row > div.program-card-item > picture > img.program-card-bg div.row > div.program-card-item > picture > img.program-card-bg |
Link text (and alternate text for images, when used as links) that is discernible, unique, and focusable improves the navigation experience for screen reader users. Learn how to make links accessible.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
div.row > ul.list-unstyled > li > a.btn div.row > ul.list-unstyled > li > a.btn |
div.row > ul.list-unstyled > li > a.btn div.row > ul.list-unstyled > li > a.btn |
div.row > ul.list-unstyled > li > a.btn div.row > ul.list-unstyled > li > a.btn |
div.row > ul.list-unstyled > li > a.btn div.row > ul.list-unstyled > li > a.btn |
div.row > ul.list-unstyled > li > a.btn div.row > ul.list-unstyled > li > a.btn |
div.row > ul.list-unstyled > li > a.btn div.row > ul.list-unstyled > li > a.btn |
div.col-auto > ul.list-unstyled > li.logo-container > a div.col-auto > ul.list-unstyled > li.logo-container > a |
div.col-auto > ul.list-unstyled > li > a#login-button-nav div.col-auto > ul.list-unstyled > li > a#login-button-nav |
div.webradio-card-slider > div.webradio-card-container > div.webradio-card-img > a.at-class div.webradio-card-slider > div.webradio-card-container > div.webradio-card-img > a.at-class |
div.webradio-card-slider > div.webradio-card-container > div.webradio-card-img > a.at-class div.webradio-card-slider > div.webradio-card-container > div.webradio-card-img > a.at-class |
div.webradio-card-slider > div.webradio-card-container > div.webradio-card-img > a.at-class div.webradio-card-slider > div.webradio-card-container > div.webradio-card-img > a.at-class |
div.webradio-card-slider > div.webradio-card-container > div.webradio-card-img > a.at-class div.webradio-card-slider > div.webradio-card-container > div.webradio-card-img > a.at-class |
div.webradio-card-slider > div.webradio-card-container > div.webradio-card-img > a.at-class div.webradio-card-slider > div.webradio-card-container > div.webradio-card-img > a.at-class |
div.webradio-card-slider > div.webradio-card-container > div.webradio-card-img > a.at-class div.webradio-card-slider > div.webradio-card-container > div.webradio-card-img > a.at-class |
div.webradio-card-slider > div.webradio-card-container > div.webradio-card-img > a.at-class div.webradio-card-slider > div.webradio-card-container > div.webradio-card-img > a.at-class |
div.webradio-card-slider > div.webradio-card-container > div.webradio-card-img > a.at-class div.webradio-card-slider > div.webradio-card-container > div.webradio-card-img > a.at-class |
div.webradio-card-slider > div.webradio-card-container > div.webradio-card-img > a.at-class div.webradio-card-slider > div.webradio-card-container > div.webradio-card-img > a.at-class |
div.webradio-card-slider > div.webradio-card-container > div.webradio-card-img > a.at-class div.webradio-card-slider > div.webradio-card-container > div.webradio-card-img > a.at-class |
div.webradio-card-slider > div.webradio-card-container > div.webradio-card-img > a.at-class div.webradio-card-slider > div.webradio-card-container > div.webradio-card-img > a.at-class |
div.webradio-card-slider > div.webradio-card-container > div.webradio-card-img > a.at-class div.webradio-card-slider > div.webradio-card-container > div.webradio-card-img > a.at-class |
div.webradio-card-slider > div.webradio-card-container > div.webradio-card-img > a.at-class div.webradio-card-slider > div.webradio-card-container > div.webradio-card-img > a.at-class |
article.box-article > div.row > figure.col > a.at-class article.box-article > div.row > figure.col > a.at-class |
article.box-article > div.row > figure.col-12 > a.l-track article.box-article > div.row > figure.col-12 > a.l-track |
article.box-article > div.row > figure.col-12 > a.l-track article.box-article > div.row > figure.col-12 > a.l-track |
article.box-article > div.row > figure.col-12 > a.l-track article.box-article > div.row > figure.col-12 > a.l-track |
article.box-article > div.row > figure.col-12 > a.l-track article.box-article > div.row > figure.col-12 > a.l-track |
article.box-article > div.row > figure.col-12 > a.l-track article.box-article > div.row > figure.col-12 > a.l-track |
article.box-article > div.row > figure.col-12 > a.l-track article.box-article > div.row > figure.col-12 > a.l-track |
article.box-article > div.row > figure.col-12 > a.l-track article.box-article > div.row > figure.col-12 > a.l-track |
article.box-article > div.row > figure.col-12 > a.l-track article.box-article > div.row > figure.col-12 > a.l-track |
article.box-article > div.row > figure.col-12 > a.l-track article.box-article > div.row > figure.col-12 > a.l-track |
article.box-article > div.row > figure.col-12 > a.l-track article.box-article > div.row > figure.col-12 > a.l-track |
article.box-article > div.row > figure.col-12 > a.l-track article.box-article > div.row > figure.col-12 > a.l-track |
article.box-article > div.row > figure.col-12 > a.l-track article.box-article > div.row > figure.col-12 > a.l-track |
article.box-article > div.row > figure.col-12 > a.l-track article.box-article > div.row > figure.col-12 > a.l-track |
article.box-article > div.row > figure.col-12 > a.l-track article.box-article > div.row > figure.col-12 > a.l-track |
article.box-article > div.row > figure.col-12 > a.l-track article.box-article > div.row > figure.col-12 > a.l-track |
article.box-article > div.row > figure.col-12 > a.l-track article.box-article > div.row > figure.col-12 > a.l-track |
article.box-article > div.row > figure.col-12 > a.l-track article.box-article > div.row > figure.col-12 > a.l-track |
article.box-article > div.row > figure.col-12 > a.l-track article.box-article > div.row > figure.col-12 > a.l-track |
article.box-article > div.row > figure.col-12 > a.l-track article.box-article > div.row > figure.col-12 > a.l-track |
article.box-article > div.row > figure.col-12 > a.l-track article.box-article > div.row > figure.col-12 > a.l-track |
article.box-article > div.row > figure.col-12 > a.l-track article.box-article > div.row > figure.col-12 > a.l-track |
article.box-article > div.row > figure.col-12 > a.l-track article.box-article > div.row > figure.col-12 > a.l-track |
article.box-article > div.row > figure.col > a.at-class article.box-article > div.row > figure.col > a.at-class |
article.box-article > div.row > figure.col-12 > a.l-track article.box-article > div.row > figure.col-12 > a.l-track |
article.box-article > div.row > figure.col-12 > a.l-track article.box-article > div.row > figure.col-12 > a.l-track |
article.box-article > div.row > figure.col-12 > a.l-track article.box-article > div.row > figure.col-12 > a.l-track |
article.box-article > div.row > figure.col-12 > a.l-track article.box-article > div.row > figure.col-12 > a.l-track |
article.box-article > div.row > figure.col-12 > a.l-track article.box-article > div.row > figure.col-12 > a.l-track |
article.box-article > div.row > figure.col-12 > a.l-track article.box-article > div.row > figure.col-12 > a.l-track |
article.box-article > div.row > figure.col-12 > a.l-track article.box-article > div.row > figure.col-12 > a.l-track |
article.box-article > div.row > figure.col-12 > a.l-track article.box-article > div.row > figure.col-12 > a.l-track |
article.box-article > div.row > figure.col-12 > a.l-track article.box-article > div.row > figure.col-12 > a.l-track |
article.box-article > div.row > figure.col > a.at-class article.box-article > div.row > figure.col > a.at-class |
article.box-article > div.row > figure.col-12 > a.l-track article.box-article > div.row > figure.col-12 > a.l-track |
article.box-article > div.row > figure.col-12 > a.l-track article.box-article > div.row > figure.col-12 > a.l-track |
article.box-article > div.row > figure.col-12 > a.l-track article.box-article > div.row > figure.col-12 > a.l-track |
article.box-article > div.row > figure.col-12 > a.l-track article.box-article > div.row > figure.col-12 > a.l-track |
article.box-article > div.row > figure.col-12 > a.l-track article.box-article > div.row > figure.col-12 > a.l-track |
article.box-article > div.row > figure.col > a.at-class article.box-article > div.row > figure.col > a.at-class |
article.box-article > div.row > figure.col-12 > a.l-track article.box-article > div.row > figure.col-12 > a.l-track |
article.box-article > div.row > figure.col-12 > a.l-track article.box-article > div.row > figure.col-12 > a.l-track |
article.box-article > div.row > figure.col-12 > a.l-track article.box-article > div.row > figure.col-12 > a.l-track |
article.box-article > div.row > figure.col-12 > a.l-track article.box-article > div.row > figure.col-12 > a.l-track |
article.box-article > div.row > figure.col-12 > a.l-track article.box-article > div.row > figure.col-12 > a.l-track |
article.box-article > div.row > figure.col > a.at-class article.box-article > div.row > figure.col > a.at-class |
article.box-article > div.row > figure.col-12 > a.l-track article.box-article > div.row > figure.col-12 > a.l-track |
article.box-article > div.row > figure.col-12 > a.l-track article.box-article > div.row > figure.col-12 > a.l-track |
article.box-article > div.row > figure.col-12 > a.l-track article.box-article > div.row > figure.col-12 > a.l-track |
article.box-article > div.row > figure.col-12 > a.l-track article.box-article > div.row > figure.col-12 > a.l-track |
article.box-article > div.row > figure.col-12 > a.l-track article.box-article > div.row > figure.col-12 > a.l-track |
article.box-article > div.row > figure.col > a.at-class article.box-article > div.row > figure.col > a.at-class |
article.box-article > div.row > figure.col-12 > a.l-track article.box-article > div.row > figure.col-12 > a.l-track |
article.box-article > div.row > figure.col-12 > a.l-track article.box-article > div.row > figure.col-12 > a.l-track |
article.box-article > div.row > figure.col-12 > a.l-track article.box-article > div.row > figure.col-12 > a.l-track |
article.box-article > div.row > figure.col-12 > a.l-track article.box-article > div.row > figure.col-12 > a.l-track |
article.box-article > div.row > figure.col-12 > a.l-track article.box-article > div.row > figure.col-12 > a.l-track |
div.container-fluid > div.row > div.col-12 > a.logo-svg-container div.container-fluid > div.row > div.col-12 > a.logo-svg-container |
nav.misc-nav-container > ul.list-unstyled > li > a.btn nav.misc-nav-container > ul.list-unstyled > li > a.btn |
nav.misc-nav-container > ul.list-unstyled > li > a.btn nav.misc-nav-container > ul.list-unstyled > li > a.btn |
nav.misc-nav-container > ul.list-unstyled > li > a.btn nav.misc-nav-container > ul.list-unstyled > li > a.btn |
nav.misc-nav-container > ul.list-unstyled > li > a.btn nav.misc-nav-container > ul.list-unstyled > li > a.btn |
nav.misc-nav-container > ul.list-unstyled > li > a.btn nav.misc-nav-container > ul.list-unstyled > li > a.btn |
nav.misc-nav-container > ul.list-unstyled > li > a.btn nav.misc-nav-container > ul.list-unstyled > li > a.btn |
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.
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.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
Utilisation de la technologie , alimentée par votre opérateur télécom div.didomi-popup-notice-text > div > div#utiq_consent_text > h3 |
Guerre en Iran div.col-12 > div.row > div.col-12 > h4.rtl-fw-bold |
Les applications div.row > div.col-10 > div.misc-nav-container > h5.text-white |
These are opportunities to improve keyboard navigation in your application.
Tables and lists
Screen readers have a specific way of announcing lists. Ensuring proper list structure aids screen reader output. Learn more about proper list structure.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
En général :
Pour une connexion foyer (ex : Wi-Fi), la personnalisation sera ba… div.didomi-popup-notice-text > div > div#utiq_consent_text > ul |
Screen readers require list items (`<li>`) to be contained within a parent `<ul>`, `<ol>` or `<menu>` to be announced properly. Learn more about proper list structure.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
nav.nav-container > div.col-auto > ul.list-unstyled > li.logo-container nav.nav-container > div.col-auto > ul.list-unstyled > li.logo-container |
Actu
Radios
Grille
Podcasts nav.nav-container > div.col-auto > ul.list-unstyled > li.h-100 |
These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.
Best practices
Disabling zooming is problematic for users with low vision who rely on screen magnification to properly see the contents of a web page. Learn more about the viewport meta tag.
Informational: a Permissions-Policy directive showing feature -> allowed origins.
Source: MDN Permissions-Policy
| Failing Elements |
|---|
head > meta head > meta |
These items highlight common accessibility best practices.
Best Practices
General
Source maps translate minified code to the original source code. This helps developers debug in production. In addition, Lighthouse is able to provide further insights. Consider deploying source maps to take advantage of these benefits. Learn more about source maps.
Performance issues directly impact user engagement and conversion rates.
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.
Content Best Practices
Informative elements should aim for short, descriptive alternate text. Decorative elements can be ignored with an empty alt attribute. Learn more about the `alt` attribute.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
div.row > div.program-card-item > picture > img.program-card-bg div.row > div.program-card-item > picture > img.program-card-bg |
Format your HTML in a way that enables crawlers to better understand your app’s content.