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Lighthouse Mobile

· 0 checks — Mobile Lighthouse audit -- Performance, Accessibility, Best Practices, and SEO category breakdown.
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Detailed Report

Audit breakdown by category with detailed findings.

28

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.

RequestCache TTLTransfer Size
assets.leparisien.fr/website/images/homepage/podcasts.gif0.0 ms112.7 KiB
/sD34c0ny1LkvdO0yyBsw1e1l/mS7EcQ5r/AwJeOn5fDQs/ay9u/aBMOF...21600.0 s153.2 KiB
news.google.com/swg/js/v1/swg.js3000.0 s71.4 KiB
assets.leparisien.fr/website/images/homepage/videos.gif0.0 ms44.9 KiB
/website/etudiant/evenements/images/2026/01/lets-praise-f...0.0 ms35.5 KiB
/website/etudiant/evenements/images/2025/12/top-hat-la-co...0.0 ms32.7 KiB
s2.dmcdn.net/1/acVgA1ftyGzqaiGcU/1280x720f86400.0 s69.0 KiB
/5e96b136-cbb6-44ff-b6c4-bbd30250289f/loader.js?target_ty...7200.0 s35.7 KiB
s1.dmcdn.net/1/acQ4q1ftvRdenU1ih/1280x720f86400.0 s61.7 KiB
/website/etudiant/evenements/images/2026/01/sceaux-jazz-f...0.0 ms24.0 KiB
/website/etudiant/evenements/images/2026/04/la-plus-gross...0.0 ms23.7 KiB
s1.dmcdn.net/1/acKks1ftt-LtdGcNu/1280x720f86400.0 s48.5 KiB
tag.aticdn.net/piano-analytics.js14400.0 s27.8 KiB
s2.dmcdn.net/1/acWz81ftyzpgKmzjg/1280x720f86400.0 s42.5 KiB
s2.dmcdn.net/1/acH4-1ftt-7gNslRn/1280x720f86400.0 s42.4 KiB
assets.poool.fr/engage.js1800.0 s19.3 KiB
s1.dmcdn.net/1/acXcs1ftzNOdMuMw6/1280x720f86400.0 s38.9 KiB
/website/images/newsletters/logos/transparent/newsletter-...0.0 ms14.9 KiB
/website/etudiant/evenements/images/2025/12/calder-rever-...0.0 ms14.6 KiB
s1.dmcdn.net/1/acUCK1ftxbE5MDUgl/1280x720f86400.0 s30.0 KiB
s1.dmcdn.net/1/acSxY1ftwy_67oDJG/1280x720f86400.0 s29.8 KiB
/website/images/newsletters/logos/transparent/newsletter-...0.0 ms11.1 KiB
/website/images/newsletters/logos/transparent/newsletter-...0.0 ms10.2 KiB
cdn.speedcurve.com/js/lux.js?id=42613351603600.0 s11.4 KiB
/website/images/newsletters/logos/transparent/newsletter-...0.0 ms7.9 KiB
/website/images/newsletters/logos/transparent/newsletter-...0.0 ms7.8 KiB
/website/images/newsletters/logos/transparent/newsletter-...0.0 ms7.5 KiB
assets.poool.fr/lib-sdk.2.3.8-1771409338215.js1800.0 s6.9 KiB
assets.leparisien.fr/website/images/homepage/newsletters.gif0.0 ms5.8 KiB
news.google.com/swg/js/v1/swg-button.css3000.0 s5.2 KiB
assets.leparisien.fr/website/images/homepage/guide-dachat.svg0.0 ms3.8 KiB
assets.leparisien.fr/website/images/design-system/code-source.svg0.0 ms3.6 KiB
assets.leparisien.fr/website/images/design-system/crime-story.svg0.0 ms2.9 KiB
assets.leparisien.fr/website/images/logo_lp_weekend.svg0.0 ms2.8 KiB
assets.leparisien.fr/website/images/homepage/logo-etudiant.svg0.0 ms2.1 KiB
assets.leparisien.fr/website/images/homepage/le-parisien-jardin.svg0.0 ms2.0 KiB
assets.leparisien.fr/website/images/homepage/leparisien-jeux.svg0.0 ms1.8 KiB
assets.leparisien.fr/website/images/E-LOGO-LP-192x60.svg0.0 ms1.2 KiB

Your first network request is the most important. Reduce its latency by avoiding redirects, ensuring a fast server response, and enabling text compression.

Why this matters

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:source label:Top function call valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]
items: [map[reflowTime:5.778 source:map[column:44559 line:2 type:source-location url:https://www.leparisien.fr/pf/dist/components/combinations/default.js?d=946&mxId=00000000 urlProvider:network]]]
headings: [map[key:source label:Source valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]
items: [map[reflowTime:97.218 source:map[type:text value:[unattributed]]] map[reflowTime:5.778 source:map[column:44623 line:1 type:source-location url:https://www.leparisien.fr/pf/dist/components/combinations/default.js?d=946&mxId=00000000 urlProvider:network]]]

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.

URLResource SizeEst Savings
article.lp-card-article > div.lp-card-article__media > div.lp-image-responsive > img.lp-image-responsive__img article.lp-card-article > div.lp-card-article__media > div.lp-image-responsive > img.lp-image-responsive__img
/resizer/jSYdOLJSxBN7_PDjLogra6zhnw8=/716x447/cloudfront-...118.8 KiB73.8 KiB
article.lp-card-article > div.lp-card-article__media > div.lp-image-responsive > img.lp-image-responsive__img article.lp-card-article > div.lp-card-article__media > div.lp-image-responsive > img.lp-image-responsive__img
/resizer/oWuDe3LTEguLzNtj3jZMm2ABQgk=/716x447/cloudfront-...113.1 KiB68.1 KiB
article.lp-card-article > div.lp-card-article__media > div.lp-image-responsive > img.lp-image-responsive__img article.lp-card-article > div.lp-card-article__media > div.lp-image-responsive > img.lp-image-responsive__img
/resizer/PDrzw91XTsxxyNsSzBMTS1BH6Lg=/716x447/cloudfront-...104.8 KiB59.8 KiB
article.lp-card-article > div.lp-card-article__media > div.lp-image-responsive > img.lp-image-responsive__img article.lp-card-article > div.lp-card-article__media > div.lp-image-responsive > img.lp-image-responsive__img
/resizer/fLjIFTU8gMOcYyqMlV8bql2jpts=/240x150/cloudfront-...54.5 KiB48.7 KiB
ul.lp-carousel__list > li.lp-carousel__item > div.player-html_preview__container > video.player-html_preview-video ul.lp-carousel__list > li.lp-carousel__item > div.player-html_preview__container > video.player-html_preview-video
s2.dmcdn.net/1/acVgA1ftyGzqaiGcU/1280x720f68.5 KiB46.9 KiB
article.lp-card-article > div.lp-card-article__media > div.lp-image-responsive > img.lp-image-responsive__img article.lp-card-article > div.lp-card-article__media > div.lp-image-responsive > img.lp-image-responsive__img
/resizer/rcxpQpYhqrQVXho6IYriII6g-t0=/240x150/filters:foc...48.0 KiB42.1 KiB
article.lp-card-article > div.lp-card-article__media > div.lp-image-responsive > img.lp-image-responsive__img article.lp-card-article > div.lp-card-article__media > div.lp-image-responsive > img.lp-image-responsive__img
/resizer/_8-SVUW2NsqlyRN4G29Xne6DHwQ=/240x150/cloudfront-...46.8 KiB40.9 KiB
ul.lp-carousel__list > li.lp-carousel__item > div.player-html_preview__container > video.player-html_preview-video ul.lp-carousel__list > li.lp-carousel__item > div.player-html_preview__container > video.player-html_preview-video
s1.dmcdn.net/1/acQ4q1ftvRdenU1ih/1280x720f61.3 KiB39.7 KiB
article.lp-card-article > div.lp-card-article__media > div.lp-image-responsive > img.lp-image-responsive__img article.lp-card-article > div.lp-card-article__media > div.lp-image-responsive > img.lp-image-responsive__img
/resizer/8BSoIWvSyKXF9NlCHHrd9REJDtk=/240x150/cloudfront-...37.6 KiB31.7 KiB
ul.lp-carousel__list > li.lp-carousel__item > div.player-html_preview__container > video.player-html_preview-video ul.lp-carousel__list > li.lp-carousel__item > div.player-html_preview__container > video.player-html_preview-video
s1.dmcdn.net/1/acKks1ftt-LtdGcNu/1280x720f48.1 KiB26.4 KiB
article.lp-card-article > div.lp-card-article__media > div.lp-image-responsive > img.lp-image-responsive__img article.lp-card-article > div.lp-card-article__media > div.lp-image-responsive > img.lp-image-responsive__img
/resizer/0IYsRn5W881TZASiwUHdTunc3wk=/716x447/cloudfront-...77.1 KiB25.0 KiB
ul.lp-carousel__list > li.lp-carousel__item > div.player-html_preview__container > video.player-html_preview-video ul.lp-carousel__list > li.lp-carousel__item > div.player-html_preview__container > video.player-html_preview-video
s2.dmcdn.net/1/acH4-1ftt-7gNslRn/1280x720f42.0 KiB23.1 KiB
ul.lp-carousel__list > li.lp-carousel__item > div.player-html_preview__container > video.player-html_preview-video ul.lp-carousel__list > li.lp-carousel__item > div.player-html_preview__container > video.player-html_preview-video
s2.dmcdn.net/1/acWz81ftyzpgKmzjg/1280x720f42.1 KiB22.9 KiB
article.lp-card-article > div.lp-card-article__media > div.lp-image-responsive > img.lp-image-responsive__img article.lp-card-article > div.lp-card-article__media > div.lp-image-responsive > img.lp-image-responsive__img
/resizer/FcYW-Bz84ANCXvu4lT_7d2LhZLw=/240x150/cloudfront-...27.8 KiB22.0 KiB
ul.lp-carousel__list > li.lp-carousel__item > div.player-html_preview__container > video.player-html_preview-video ul.lp-carousel__list > li.lp-carousel__item > div.player-html_preview__container > video.player-html_preview-video
s1.dmcdn.net/1/acXcs1ftzNOdMuMw6/1280x720f38.5 KiB21.0 KiB
article.lp-card-article > div.lp-card-article__media > div.lp-image-responsive > img.lp-image-responsive__img article.lp-card-article > div.lp-card-article__media > div.lp-image-responsive > img.lp-image-responsive__img
/resizer/lJQ-Oh2Ljzsso83mjjtTNKV49Nc=/240x150/cloudfront-...26.2 KiB20.4 KiB
ul.lp-carousel__list > li.lp-carousel__item > div.player-html_preview__container > video.player-html_preview-video ul.lp-carousel__list > li.lp-carousel__item > div.player-html_preview__container > video.player-html_preview-video
s1.dmcdn.net/1/acSxY1ftwy_67oDJG/1280x720f29.4 KiB16.2 KiB
ul.lp-carousel__list > li.lp-carousel__item > div.player-html_preview__container > video.player-html_preview-video ul.lp-carousel__list > li.lp-carousel__item > div.player-html_preview__container > video.player-html_preview-video
s1.dmcdn.net/1/acUCK1ftxbE5MDUgl/1280x720f29.6 KiB16.1 KiB
article.lp-card-article > div.lp-card-article__media > div.lp-image-responsive > img.lp-image-responsive__img article.lp-card-article > div.lp-card-article__media > div.lp-image-responsive > img.lp-image-responsive__img
/resizer/oA3fdVtHp0UF1txgV_AJGIW4dew=/240x150/cloudfront-...21.3 KiB15.4 KiB
article.lp-card-article > div.lp-card-article__media > div.lp-image-responsive > img.lp-image-responsive__img article.lp-card-article > div.lp-card-article__media > div.lp-image-responsive > img.lp-image-responsive__img
/resizer/rBvZSH9qMMAxi7AseH266dZZ9j4=/240x150/cloudfront-...21.0 KiB15.1 KiB
article.lp-card-article > div.lp-card-article__media > div.lp-image-responsive > img.lp-image-responsive__img article.lp-card-article > div.lp-card-article__media > div.lp-image-responsive > img.lp-image-responsive__img
/resizer/1MfD6rzNyILhq6bWb8fRDbvgGnE=/240x150/cloudfront-...19.2 KiB13.4 KiB
article.lp-card-article > div.lp-card-article__media > div.lp-image-responsive > img.lp-image-responsive__img article.lp-card-article > div.lp-card-article__media > div.lp-image-responsive > img.lp-image-responsive__img
/resizer/GUaTkMsaWHeL9hcvih-gvbMVCzg=/240x150/cloudfront-...17.4 KiB11.6 KiB
article.lp-card-article > div.lp-card-article__media > div.lp-image-responsive > img.lp-image-responsive__img article.lp-card-article > div.lp-card-article__media > div.lp-image-responsive > img.lp-image-responsive__img
/resizer/6DPyBEHHtj74LCNgmEFhRR9a5FY=/240x150/cloudfront-...16.5 KiB10.7 KiB
article.lp-card-article > div.lp-card-article__media > div.lp-image-responsive > img.lp-image-responsive__img article.lp-card-article > div.lp-card-article__media > div.lp-image-responsive > img.lp-image-responsive__img
/resizer/EgUoA6f_aGsz-Ky1_MhaNeH7CXg=/240x150/cloudfront-...16.0 KiB10.2 KiB
article.lp-card-article > div.lp-card-article__media > div.lp-image-responsive > img.lp-image-responsive__img article.lp-card-article > div.lp-card-article__media > div.lp-image-responsive > img.lp-image-responsive__img
/resizer/C0pAYJh5CdiK9ijtXZBFJrFQmQE=/240x150/cloudfront-...15.0 KiB9.2 KiB
div.lp-card-podcast-highlighting__media > div.lp-image-responsive > picture.lp-image-responsive__picture > img.lp-image-responsive__img div.lp-card-podcast-highlighting__media > div.lp-image-responsive > picture.lp-image-responsive__picture > img.lp-image-responsive__img
/resizer/P_roCMq_8kYY4kiYfFFbwkSRdgA=/192x192/cloudfront-...14.0 KiB8.0 KiB
article.lp-card-article > div.lp-card-article__media > div.lp-image-responsive > img.lp-image-responsive__img article.lp-card-article > div.lp-card-article__media > div.lp-image-responsive > img.lp-image-responsive__img
/resizer/oMfp0nixkyMXIQnAy3wRWooQCIs=/240x150/cloudfront-...13.8 KiB8.0 KiB
article.lp-card-article > div.lp-card-article__media > div.lp-image-responsive > img.lp-image-responsive__img article.lp-card-article > div.lp-card-article__media > div.lp-image-responsive > img.lp-image-responsive__img
/resizer/bgN4xdIlTEzTBMPE03ZOpeqjveQ=/240x150/cloudfront-...12.7 KiB6.8 KiB

Each subpart has specific improvement strategies. Ideally, most of the LCP time should be spent on loading the resources, not within delays.

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:label label:Subpart valueType:text] map[key:duration label:Duration valueType:ms]]
items: [map[duration:643.8169998779297 label:Time to first byte subpart:timeToFirstByte] map[duration:3087.7090001220704 label:Element render delay subpart:elementRenderDelay]]
lhId: page-28-DIV
nodeLabel: Pour soutenir le travail de notre rédaction et améliorer notre offre, nous et n…
path: 1,HTML,1,BODY,1,DIV,0,DIV,0,DIV,1,DIV,0,DIV,1,DIV,1,DIV,0,DIV,0,DIV,1,DIV,3,DIV
selector: div.didomi-popup-notice-text > div > div.container > div.lp-font-text
snippet: <div class="lp-font-text lp-mb_24_16">

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.

More than 4 preconnect connections were found. These should be used sparingly and only to the most important origins.
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
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

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

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Redirects introduce additional delays before the page can be loaded. Learn how to avoid page redirects.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 910 ms
URLTime Spent
leparisien.fr/910 ms
www.leparisien.fr/0.0 ms

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 85.3 KiB
URLTransfer SizeEst Savings
www.leparisien.fr/pf/resources/dist/parisien/main.css?d=94678.7 KiB70.7 KiB
17.3 KiB14.7 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: 2.6 s 517.4 KiB
URLTransfer SizeEst Savings
www.leparisien.fr/pf/dist/components/combinations/default.js?d=946&mxId=00000000517.4 KiB310.4 KiB
/gtm.js?id=GTM-5QNLTGR&gtm_auth=XWh1NlOe7Udt_V-KXeCUVQ&gt...180.1 KiB66.9 KiB
/sdk/d4911c3d5b4b9a80b40e05167f53d1b1e8da81f3/modern/sdk....100.5 KiB42.0 KiB
news.google.com/swg/js/v1/swg.js68.9 KiB40.3 KiB
www.leparisien.fr/pf/dist/engine/react.js?d=946&mxId=0000000086.2 KiB29.1 KiB
/sD34c0ny1LkvdO0yyBsw1e1l/mS7EcQ5r/AwJeOn5fDQs/ay9u/aBMOF...152.9 KiB28.7 KiB

Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to reduce Javascript execution time.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLTotal CPU TimeScript EvaluationScript Parse
www.leparisien.fr/4.7 s113 ms685 ms
www.leparisien.fr/pf/dist/engine/react.js?d=946&mxId=000000002.3 s2.0 s37 ms
Unattributable2.1 s455 ms0.0 ms
/sD34c0ny1LkvdO0yyBsw1e1l/mS7EcQ5r/AwJeOn5fDQs/ay9u/aBMOF...1.5 s1.4 s64 ms
/gtm.js?id=GTM-5QNLTGR&gtm_auth=XWh1NlOe7Udt_V-KXeCUVQ&gt...878 ms772 ms93 ms
www.leparisien.fr/pf/dist/components/combinations/default.js?d=946&mxId=00000000725 ms443 ms243 ms
/sdk/d4911c3d5b4b9a80b40e05167f53d1b1e8da81f3/modern/sdk....503 ms390 ms50 ms
/sdk/d4911c3d5b4b9a80b40e05167f53d1b1e8da81f3/modern/src_...474 ms439 ms1.4 ms
/sdk/d4911c3d5b4b9a80b40e05167f53d1b1e8da81f3/modern/ui-w...229 ms131 ms35 ms
www.leparisien.fr/pf/resources/dist/base.js?d=946208 ms148 ms4.3 ms
tag.aticdn.net/piano-analytics.js119 ms103 ms13 ms
news.google.com/swg/js/v1/swg.js58 ms25 ms31 ms

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

CategoryTime Spent
Script Evaluation6.6 s
Other2.8 s
Style & Layout1.5 s
Script Parsing & Compilation1.3 s
Parse HTML & CSS859 ms
Rendering744 ms
Garbage Collection205 ms

Large network payloads cost users real money and are highly correlated with long load times. Learn how to reduce payload sizes.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLTransfer Size
www.leparisien.fr/761.7 KiB
www.leparisien.fr/pf/dist/components/combinations/default.js?d=946&mxId=00000000527.9 KiB
/gtm.js?id=GTM-5QNLTGR&gtm_auth=XWh1NlOe7Udt_V-KXeCUVQ&gt...180.4 KiB
/sD34c0ny1LkvdO0yyBsw1e1l/mS7EcQ5r/AwJeOn5fDQs/ay9u/aBMOF...153.2 KiB
/resizer/jSYdOLJSxBN7_PDjLogra6zhnw8=/716x447/cloudfront-...119.1 KiB
/resizer/oWuDe3LTEguLzNtj3jZMm2ABQgk=/716x447/cloudfront-...113.4 KiB
assets.leparisien.fr/website/images/homepage/podcasts.gif112.7 KiB
/resizer/PDrzw91XTsxxyNsSzBMTS1BH6Lg=/716x447/cloudfront-...105.1 KiB
/sdk/d4911c3d5b4b9a80b40e05167f53d1b1e8da81f3/modern/sdk....100.9 KiB
www.leparisien.fr/pf/dist/engine/react.js?d=946&mxId=0000000086.5 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
li.lp-carousel__item > a.etudiant-event-mea > div.illustration > img li.lp-carousel__item > a.etudiant-event-mea > div.illustration > img
/website/etudiant/evenements/images/2026/01/sceaux-jazz-f...
li.lp-carousel__item > a.etudiant-event-mea > div.illustration > img li.lp-carousel__item > a.etudiant-event-mea > div.illustration > img
/website/etudiant/evenements/images/2025/12/calder-rever-...
li.lp-carousel__item > a.etudiant-event-mea > div.illustration > img li.lp-carousel__item > a.etudiant-event-mea > div.illustration > img
/website/etudiant/evenements/images/2025/12/top-hat-la-co...
li.lp-carousel__item > a.etudiant-event-mea > div.illustration > img li.lp-carousel__item > a.etudiant-event-mea > div.illustration > img
/website/etudiant/evenements/images/2026/04/la-plus-gross...
li.lp-carousel__item > a.etudiant-event-mea > div.illustration > img li.lp-carousel__item > a.etudiant-event-mea > div.illustration > img
/website/etudiant/evenements/images/2026/01/lets-praise-f...

More information about the performance of your application. These numbers don't directly affect the Performance score.

●Layout shift culprits
●Optimize DOM size
●Font display
●Modern HTTP
●Render blocking requests
●Optimize viewport for mobile
●Minify CSS
●Minify JavaScript
●User Timing marks and measures 3 user timings
●Avoid long main-thread tasks 20 long tasks found
●Page didn't prevent back/forward cache restoration
●Network Requests
●Network Round Trip Times 10 ms
●Server Backend Latencies 600 ms
●Tasks
●Diagnostics
●Metrics
●Screenshot Thumbnails
●Final Screenshot
●Script Treemap Data
●Resources Summary
●Initial server response time was short Root document took 70 ms
○INP breakdown
○LCP request discovery
○Avoid non-composited animations
○Avoid large layout shifts
88

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

ARIA dialog elements without accessible names may prevent screen readers users from discerning the purpose of these elements. Learn how to make ARIA dialog elements more accessible.

Why this matters

Informational: a Permissions-Policy directive showing feature -> allowed origins.

Source: MDN Permissions-Policy

Failing Elements
Rechercher sur Le Parisien À la une En continu Paris & Île-de-France Faits dive… div#fusion-app > div.layout-homepage > div.menu > aside.lp-sidebar

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.header__container > div.header__left > div.header__toggle > button.lp-button div.header__container > div.header__left > div.header__toggle > button.lp-button

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.

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
S’abonner et refuser les cookies div.didomi-popup-notice-text > div > div.lp-header > a.lp-mr_4
nos 229 partenaires div > div.container > div.lp-font-text > a
liste complète div > div.container > div.lp-font-text > a
charte cookies div > div.container > div.lp-font-text > a
Accepter div.didomi-popup-notice-text > div > div.lp-buttons-container > button.lp-cmp-button
Déjà abonné ? Se connecter div.didomi-popup-notice-text > div > div.lp-buttons-container > div.lp-font-btn
Se connecter div > div.lp-buttons-container > div.lp-font-btn > a
À la une div.lp-scroll-container__scroll > ul.nav__list > li.nav__item > a.nav__link
Info Le Parisien article.lp-card-article > ul.lp-card-article__tags > li.lp-card-article__tags-item > p.lp-card-article__tags-text
Récit div.lp-card-article__content > ul.lp-card-article__tags > li.lp-card-article__tags-item > p.lp-card-article__tags-text
Reportage div.lp-card-article__content > ul.lp-card-article__tags > li.lp-card-article__tags-item > p.lp-card-article__tags-text
Décryptage div.lp-card-article__content > ul.lp-card-article__tags > li.lp-card-article__tags-item > p.lp-card-article__tags-text
Info Le Parisien div.lp-card-article__content > ul.lp-card-article__tags > li.lp-card-article__tags-item > p.lp-card-article__tags-text
Podcast div.lp-card-podcast-highlighting__content > ul.lp-card-podcast-highlighting__tags > li > p.lp-card-podcast-highlighting__tags-item
Décryptage div.lp-card-article__content > ul.lp-card-article__tags > li.lp-card-article__tags-item > p.lp-card-article__tags-text
75 · Paris div.lp-card-article__content > ul.lp-card-article__tags > li.lp-card-article__tags-item > p.lp-card-article__tags-text
Décryptage div.lp-card-article__content > ul.lp-card-article__tags > li.lp-card-article__tags-item > p.lp-card-article__tags-text
Transports IDF div.lp-card-article__content > ul.lp-card-article__tags > li.lp-card-article__tags-item > p.lp-card-article__tags-text
95 · Val-d'Oise div.lp-card-article__content > ul.lp-card-article__tags > li.lp-card-article__tags-item > p.lp-card-article__tags-text
92 · Hauts-de-Seine div.lp-card-article__content > ul.lp-card-article__tags > li.lp-card-article__tags-item > p.lp-card-article__tags-text
95 · Val-d'Oise div.lp-card-article__content > ul.lp-card-article__tags > li.lp-card-article__tags-item > p.lp-card-article__tags-text
Plus d’actualité par département div.section__content > div.locales > div.locales__related > p.locales__title
75 · Paris ul.locales__related-list > li.locales__related-item > a.lp-button > span.lp-button__label
91 · Essonne ul.locales__related-list > li.locales__related-item > a.lp-button > span.lp-button__label
92 · Hauts-de-Seine ul.locales__related-list > li.locales__related-item > a.lp-button > span.lp-button__label
93 · Seine-Saint-Denis ul.locales__related-list > li.locales__related-item > a.lp-button > span.lp-button__label
95 · Val-d’Oise ul.locales__related-list > li.locales__related-item > a.lp-button > span.lp-button__label
77 · Seine-et-Marne ul.locales__related-list > li.locales__related-item > a.lp-button > span.lp-button__label
78 · Yvelines ul.locales__related-list > li.locales__related-item > a.lp-button > span.lp-button__label
60 · Oise ul.locales__related-list > li.locales__related-item > a.lp-button > span.lp-button__label
Info Le Parisien div.lp-card-article__content > ul.lp-card-article__tags > li.lp-card-article__tags-item > p.lp-card-article__tags-text
Info Le Parisien div.lp-card-article__content > ul.lp-card-article__tags > li.lp-card-article__tags-item > p.lp-card-article__tags-text
95 · Val-d'Oise div.lp-card-article__content > ul.lp-card-article__tags > li.lp-card-article__tags-item > p.lp-card-article__tags-text
Témoignage div.lp-card-article__content > ul.lp-card-article__tags > li.lp-card-article__tags-item > p.lp-card-article__tags-text
Interview div.lp-card-article__content > ul.lp-card-article__tags > li.lp-card-article__tags-item > p.lp-card-article__tags-text
Info Le Parisien div.lp-card-article__number-wrapper > ul.lp-card-article__tags > li.lp-card-article__tags-item > p.lp-card-article__tags-text
Reportage div.lp-card-article__number-wrapper > ul.lp-card-article__tags > li.lp-card-article__tags-item > p.lp-card-article__tags-text
Reportage div.lp-card-article__content > ul.lp-card-article__tags > li.lp-card-article__tags-item > p.lp-card-article__tags-text
Interview div.lp-card-article__content > ul.lp-card-article__tags > li.lp-card-article__tags-item > p.lp-card-article__tags-text
Critique div.lp-card-article__content > ul.lp-card-article__tags > li.lp-card-article__tags-item > p.lp-card-article__tags-text
Critique div.lp-card-article__content > ul.lp-card-article__tags > li.lp-card-article__tags-item > p.lp-card-article__tags-text
Décryptage div.lp-card-article__content > ul.lp-card-article__tags > li.lp-card-article__tags-item > p.lp-card-article__tags-text
Reportage div.lp-card-article__content > ul.lp-card-article__tags > li.lp-card-article__tags-item > p.lp-card-article__tags-text
Exclusif div.lp-card-article__content > ul.lp-card-article__tags > li.lp-card-article__tags-item > p.lp-card-article__tags-text
Classement div.lp-card-article__content > ul.lp-card-article__tags > li.lp-card-article__tags-item > p.lp-card-article__tags-text
60 · Oise div.lp-card-article__content > ul.lp-card-article__tags > li.lp-card-article__tags-item > p.lp-card-article__tags-text
75 · Paris div.lp-card-article__content > ul.lp-card-article__tags > li.lp-card-article__tags-item > p.lp-card-article__tags-text
Reportage div.lp-card-article__content > ul.lp-card-article__tags > li.lp-card-article__tags-item > p.lp-card-article__tags-text
Podcast div.lp-card-article__content > ul.lp-card-article__tags > li.lp-card-article__tags-item > p.lp-card-article__tags-text
Podcast div.lp-card-article__content > ul.lp-card-article__tags > li.lp-card-article__tags-item > p.lp-card-article__tags-text
Podcast div.lp-card-article__content > ul.lp-card-article__tags > li.lp-card-article__tags-item > p.lp-card-article__tags-text
75 · Paris div.lp-card-article__content > ul.lp-card-article__tags > li.lp-card-article__tags-item > p.lp-card-article__tags-text
Décryptage div.lp-card-article__content > ul.lp-card-article__tags > li.lp-card-article__tags-item > p.lp-card-article__tags-text
Newsletter div.lp-card-article__content > ul.lp-card-article__tags > li.lp-card-article__tags-item > p.lp-card-article__tags-text
Décryptage div.lp-card-article__content > ul.lp-card-article__tags > li.lp-card-article__tags-item > p.lp-card-article__tags-text
Témoignage div.lp-card-article__content > ul.lp-card-article__tags > li.lp-card-article__tags-item > p.lp-card-article__tags-text
75 · Paris div.lp-card-article__content > ul.lp-card-article__tags > li.lp-card-article__tags-item > p.lp-card-article__tags-text
Récit div.lp-card-article__content > ul.lp-card-article__tags > li.lp-card-article__tags-item > p.lp-card-article__tags-text
Décryptage div.lp-card-article__content > ul.lp-card-article__tags > li.lp-card-article__tags-item > p.lp-card-article__tags-text
Récit div.lp-card-article__content > ul.lp-card-article__tags > li.lp-card-article__tags-item > p.lp-card-article__tags-text
Récit div.lp-card-article__content > ul.lp-card-article__tags > li.lp-card-article__tags-item > p.lp-card-article__tags-text
Sélection div.lp-card-article__content > ul.lp-card-article__tags > li.lp-card-article__tags-item > p.lp-card-article__tags-text
S'inscrire div.lp-card-newsletter__cta > div.lp-card-newsletter__cta-row > button.lp-button > span.lp-button__label
S'inscrire div.lp-card-newsletter__cta > div.lp-card-newsletter__cta-row > button.lp-button > span.lp-button__label
Lire l'édition du jour div.lp-card-banner__content > div.lp-card-banner__cta > button.lp-button > span.lp-button__label
75 · Paris  div.lp-col-12 > h2.section__title > a.section__link > span.section__title-label
Décryptage div.lp-card-article__content > h3.lp-card-article__title > a.lp-card-article__link > span.lp-card-article__title-tags
Décryptage div.lp-card-article__content > h3.lp-card-article__title > a.lp-card-article__link > span.lp-card-article__title-tags
93 · Seine-Saint-Denis  div.lp-col-12 > h2.section__title > a.section__link > span.section__title-label
77 · Seine-et-Marne  div.lp-col-12 > h2.section__title > a.section__link > span.section__title-label
Reportage div.lp-card-article__content > ul.lp-card-article__tags > li.lp-card-article__tags-item > p.lp-card-article__tags-text
Voir les liens rapides div.footer-homepage__section > div.footer-homepage__top-btn > button.lp-button > span.lp-button__label

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
« Nous ne signerons pas notre prochain livre chez Grasset » : après le licencie… ul.stories__list > li.stories__item > article.lp-card-article > h3.lp-card-article__title

These are opportunities to improve keyboard navigation in your application.

○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
●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
●`[aria-hidden="true"]` elements do not contain focusable descendents
●Elements use only permitted ARIA attributes
●Document has a `<title>` element
●`<frame>` or `<iframe>` elements have a title
●`<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
●No element has a `[tabindex]` value greater than 0
●Touch targets have sufficient size and spacing.
●`[lang]` attributes have a valid value
●Document has a main landmark.
●Deprecated ARIA roles were not used
●`<video>` elements contain a `<track>` element with `[kind="captions"]`
●Uses ARIA roles only on compatible elements
●Identical links have the same purpose.
●Elements with visible text labels have matching accessible names.
○`[accesskey]` values are unique
○`button`, `link`, and `menuitem` elements have accessible names
○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
○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
○`<html>` element has an `[xml:lang]` attribute with the same base language as the `[lang]` attribute.
○Input buttons have discernible text.
○`<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.
○Skip links are focusable.
○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.
○Tables have different content in the summary attribute and `<caption>`.
○All heading elements contain content.
○Image elements do not have `[alt]` attributes that are redundant text.
○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.
92

Best Practices

User Experience

Image display dimensions should match natural aspect ratio. Learn more about image aspect ratio.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLAspect Ratio (Displayed)Aspect Ratio (Actual)
li.lp-carousel__item > a.etudiant-event-mea > div.illustration > img li.lp-carousel__item > a.etudiant-event-mea > div.illustration > img
/website/etudiant/evenements/images/2025/12/calder-rever-...230 x 110 (2.09)600 x 277 (2.17)

General

Errors logged to the console indicate unresolved problems. They can come from network request failures and other browser concerns. Learn more about this errors in console diagnostic audit

Why this matters

Performance issues directly impact user engagement and conversion rates.

SourceDescription
www.leparisien.fr/pf/dist/engine/react.js?d=946&mxId=00000000 line 1, col 47920
Error: <HTML><HEAD> <TITLE>Bad Request</TITLE> </HEAD><BODY> <H1>Bad Request</H1> Your browser sent a request that this server could not understand.<P> Reference&#32;&#35;7&#46;9b753617&#46;1776294735&#46;3ec51ca <P>https&#58;&#47;&#47;errors&#46;edgesuite&#46;net&#47;7&#46;9b753617&#46;1776294735&#46;3ec51ca</P> </BODY> </HTML> at https://www.leparisien.fr/pf/dist/engine/react.js?d=946&mxId=00000000:2:47882
/pf/api/v3/content/fetch/stories-cards-list-by-urls?query...
Failed to load resource: the server responded with a status of 400 ()

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLMap URL
www.leparisien.fr/pf/dist/components/combinations/default.js?d=946&mxId=00000000
www.leparisien.fr/
news.google.com/swg/js/v1/swg.jsnews.google.com/swg/js/v1/swg.js.map
cdn.speedcurve.com/js/lux.js?id=4261335160cdn.speedcurve.com/js/lux.min.js.map
●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
●Serves images with appropriate resolution
●Page has the HTML doctype
●Properly defines charset
●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
○Redirects HTTP traffic to HTTPS
92

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.

Crawling and Indexing

Search engines may use `href` attributes on links to crawl websites. Ensure that the `href` attribute of anchor elements links to an appropriate destination, so more pages of the site can be discovered. Learn how to make links crawlable

Why this matters

Performance issues directly impact user engagement and conversion rates.

Uncrawlable Link
Écouter div.podcast-highlighting-feature > div.podcast-highlighting-container > div.lp-card-podcast-highlighting > a.lp-card-podcast-highlighting__call-to-action

To appear in search results, crawlers need access to your app.

○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
●robots.txt is valid
●Image elements have `[alt]` attributes
●Document has a valid `hreflang`
●Document has a valid `rel=canonical`

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