Lighthouse Mobile

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

SCORE

GRADE

FIX

REVIEW

PASS

INFO

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.

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
cdn.hubvisor.io/wrapper/01CE9HZCZVPW9QB522QNNS8MZQ/hubvisor.js	3600.0 s	365.1 KiB
/captcha/assets/set/26e53713afb2da82d031f045066fa4b2a47b0...	0.0 ms	69.7 KiB
/captcha/assets/set/3f613c55d57f95fe15534edae86f6863d67d2...	0.0 ms	69.7 KiB
dd.leboncoin.fr/tags.js	3600.0 s	42.7 KiB
/758b10ac-a0a7-421d-b3a2-f77eaa2897e8/loader.js?target=ww...	7200.0 s	35.7 KiB
cdn-eu.realytics.net/realytics-2.1.min.js	0.0 ms	18.7 KiB
static.captcha-delivery.com/common/fonts/roboto/roboto.woff2	0.0 ms	15.8 KiB
ct.captcha-delivery.com/c.js	0.0 ms	14.8 KiB
/captcha/assets/tpl/6dc485c0c428c35b53577b146dc6f9179f55e...	0.0 ms	1.8 KiB
static.captcha-delivery.com/common/fonts/roboto/font-face.css	0.0 ms	898 B
/?apikey=ry-l3b0nco&id=ry_8D41CECD-D364-4890-8EC0-3475225...	0.0 ms	355 B
/?apikey=ry-l3b0nco&id=ry_8D41CECD-D364-4890-8EC0-3475225...	0.0 ms	355 B
/758b10ac-a0a7-421d-b3a2-f77eaa2897e8/loader.js?target=ww...	7200.0 s	0 B
/758b10ac-a0a7-421d-b3a2-f77eaa2897e8/loader.js?target=ww...	7200.0 s	0 B
static.captcha-delivery.com/common/fonts/roboto/roboto.woff2	0.0 ms	0 B
/captcha/assets/tpl/6dc485c0c428c35b53577b146dc6f9179f55e...	0.0 ms	0 B
static.captcha-delivery.com/common/fonts/roboto/font-face.css	0.0 ms	0 B

Layout shifts occur when elements move absent any user interaction. Investigate the causes of layout shifts, such as elements being added, removed, or their fonts changing as the page loads.

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:node label:Element subItemsHeading:map[key:extra] valueType:node] map[granularity:0.001 key:score label:Layout shift score subItemsHeading:map[key:cause valueType:text] valueType:numeric]]

items: [map[node:map[type:text value:Total] score:0.000982] map[score:0.000982 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:5321 height:16 left:216 right:232 top:5305 width:16] lhId:page-13-IMG nodeLabel:div.mr-sm > span > span > img path:1,HTML,1,BODY,5,DIV,0,DIV,0,DIV,0,DIV,1,DIV,0,FOOTER,0,DIV,2,DIV,1,A,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,SPAN,0,SPAN,0,IMG selector:div.mr-sm > span > span > img snippet:<img alt="" aria-hidden="true" src="data:image/svg+xml,%3csvg%20xmlns=%27http://www.w3.org/2000/svg%27%20versi…" style="display: block; max-width: 100%; width: initial; height: initial;"> type:node]]] type:subitems]]]

items: [map[node:map[type:text value:Total] score:0.200736] map[score:0.196603 subItems:map[items:[map[cause:Unsized image element]] type:subitems]] map[node:map[boundingRect:map[bottom:2907 height:16 left:74 right:119 top:2891 width:45] lhId:page-1-A nodeLabel:section.pt-lg > div.max-w-page-max > p.text-caption > a.inline-flex path:1,HTML,1,BODY,5,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,6,MAIN,3,DIV,2,SECTION,4,DIV,0,P,2,A selector:section.pt-lg > div.max-w-page-max > p.text-caption > a.inline-flex snippet:<a data-spark-component="text-link" class="inline-flex items-center focus-visible:u-outline text-current hover:opacit…" href="/c/voitures"> type:node] score:0.004133 subItems:map[items:[map[cause:Unsized image element]] type:subitems]]]

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:201.542 source:map[column:8920 line:1 type:source-location url:https://www.leboncoin.fr/_next/static/chunks/framework-2abbcfecf697e9a2.js 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:163.122 source:map[type:text value:[unattributed]]] map[reflowTime:10.756 source:map[column:153039 line:147 type:source-location url:https://www.leboncoin.fr/_next/static/chunks/pages/_app-4542fcc57fd47f46.js urlProvider:network]] map[reflowTime:30.653 source:map[column:79876 line:147 type:source-location url:https://www.leboncoin.fr/_next/static/chunks/pages/_app-4542fcc57fd47f46.js urlProvider:network]] map[reflowTime:9.31 source:map[column:63629 line:0 type:source-location url:https://www.leboncoin.fr/_next/static/chunks/pages/_app-4542fcc57fd47f46.js urlProvider:network]] map[reflowTime:9.555 source:map[column:63749 line:0 type:source-location url:https://www.leboncoin.fr/_next/static/chunks/pages/_app-4542fcc57fd47f46.js urlProvider:network]] map[reflowTime:64.538 source:map[column:4629 line:0 type:source-location url:https://www.leboncoin.fr/_next/static/chunks/40968-4b113af2b24ba2a4.js urlProvider:network]] map[reflowTime:0.26 source:map[column:75641 line:1 type:source-location url:https://dd.leboncoin.fr/tags.js urlProvider:network]] map[reflowTime:156.861 source:map[column:43420 line:58 type:source-location url:https://www.leboncoin.fr/_next/static/chunks/pages/_app-4542fcc57fd47f46.js urlProvider:network]] map[reflowTime:1.058 source:map[column:51653 line:0 type:source-location url:https://www.leboncoin.fr/piano-analytics/pa.js urlProvider:network]]]

Optimize LCP by making the LCP image discoverable from the HTML immediately, and avoiding lazy-loading

Why this matters

Performance issues directly impact user engagement and conversion rates.

lhId: page-0-IMG

nodeLabel: section.pt-lg > div.max-w-page-max > div.min-h-sz-80 > img

path: 1,HTML,1,BODY,5,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,6,MAIN,3,DIV,2,SECTION,0,DIV,2,DIV,0,IMG

selector: section.pt-lg > div.max-w-page-max > div.min-h-sz-80 > img

snippet: <img alt="" decoding="async" data-nimg="fill" style="position: absolute; height: 100%; width: 100%; inset: 0px;" sizes="100vw" srcset="/_next/image?url=%2F_next%2Fstatic%2Fmedia%2Fadinsertion_banner.65cb671a.w…" src="https://www.leboncoin.fr/_next/image?url=%2F_next%2Fstatic%2Fmedia%2Fadins…" data-base-ui-inert="" aria-hidden="true">

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

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.dictivatted-foothers.cloud/style.min.css?query=1744790342	508 B	764 ms

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
static.captcha-delivery.com/common/fonts/roboto/roboto.woff2	15 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
/captcha/assets/set/26e53713afb2da82d031f045066fa4b2a47b0...	69.2 KiB	69.1 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

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.

These are the largest layout shifts observed on the page. Each table item represents a single layout shift, and shows the element that shifted the most. Below each item are possible root causes that led to the layout shift. Some of these layout shifts may not be included in the CLS metric value due to windowing. Learn how to improve CLS

Why this matters

Performance issues directly impact user engagement and conversion rates.

Element	Layout shift score
	0.197
section.pt-lg > div.max-w-page-max > p.text-caption > a.inline-flex `section.pt-lg > div.max-w-page-max > p.text-caption > a.inline-flex`	0.004
	0.001

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 910 ms 1.6 MiB

URL	Transfer Size	Est Savings
www.leboncoin.fr/_next/static/chunks/pages/_app-4542fcc57fd47f46.js	477.9 KiB	207.6 KiB
www.leboncoin.fr/_next/static/chunks/44700-c58766aeb527c730.js	168.8 KiB	165.6 KiB
www.leboncoin.fr/_next/static/chunks/1607-1321761431f1d26c.js	155.2 KiB	150.5 KiB
/pagead/managed/js/gpt/m202604020101/pubads_impl.js	182.6 KiB	138.5 KiB
www.leboncoin.fr/_next/static/chunks/17645-ef23547b8a8fdebf.js	163.1 KiB	137.2 KiB
/gtag/js?id=G-Z707449XJ2&cx=c&gtm=4e6461h2&sign=f9b7a61e0...	160.8 KiB	72.9 KiB
server.sgtm.leboncoin.fr/gtm.js?id=GTM-PXTWK33X	168.3 KiB	70.6 KiB
cdn.hubvisor.io/wrapper/01CE9HZCZVPW9QB522QNNS8MZQ/hubvisor.js	364.5 KiB	66.7 KiB
www.leboncoin.fr/_next/static/chunks/23632-f2e3f6ba1ce2f481.js	73.2 KiB	64.4 KiB
www.leboncoin.fr/_next/static/chunks/19187-7247b2d901b73c11.js	81.2 KiB	56.7 KiB
/sdk/c8e2e67c354c0d6dec2981e079061b37f6a1f337/modern/sdk....	89.3 KiB	37.4 KiB
/sdk/c8e2e67c354c0d6dec2981e079061b37f6a1f337/modern/sdk....	89.3 KiB	35.8 KiB
/sdk/c8e2e67c354c0d6dec2981e079061b37f6a1f337/modern/sdk....	89.3 KiB	35.6 KiB
www.leboncoin.fr/_next/static/chunks/78272-bd8ad82fa8be5c90.js	32.7 KiB	28.2 KiB
www.leboncoin.fr/_next/static/chunks/82827-8f2886a324a692c6.js	29.2 KiB	26.3 KiB
www.leboncoin.fr/_next/static/chunks/87c73c54-0df74f0fec58f23d.js	57.4 KiB	26.3 KiB
www.leboncoin.fr/_next/static/chunks/87c73c54-0df74f0fec58f23d.js	57.4 KiB	26.3 KiB
www.leboncoin.fr/_next/static/chunks/10982-deca4f25604b995a.js	41.3 KiB	24.5 KiB
/sdk/c8e2e67c354c0d6dec2981e079061b37f6a1f337/modern/ui-w...	58.1 KiB	24.1 KiB
/sdk/c8e2e67c354c0d6dec2981e079061b37f6a1f337/modern/ui-w...	58.1 KiB	24.1 KiB
/sdk/c8e2e67c354c0d6dec2981e079061b37f6a1f337/modern/ui-w...	58.1 KiB	24.1 KiB
www.leboncoin.fr/_next/static/chunks/95656-f7b459eb3db2c1ba.js	41.8 KiB	23.5 KiB
www.leboncoin.fr/_next/static/chunks/95656-f7b459eb3db2c1ba.js	41.8 KiB	23.5 KiB
www.leboncoin.fr/_next/static/chunks/23785-343c0e529e1e31f0.js	111.6 KiB	23.4 KiB
www.leboncoin.fr/libertix/libertix.min.js	81.3 KiB	23.1 KiB
www.leboncoin.fr/_next/static/chunks/87389-378fbe2761abd33c.js	29.3 KiB	23.0 KiB
www.leboncoin.fr/_next/static/chunks/10719-83cd6f7620c8a1cf.js	23.1 KiB	22.2 KiB
www.leboncoin.fr/_next/static/chunks/12697-022ff6ae3c590093.js	26.0 KiB	21.5 KiB
www.leboncoin.fr/_next/static/chunks/10677-59a4d800cdb23687.js	24.9 KiB	21.2 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.

URL	Total CPU Time	Script Evaluation	Script Parse
www.leboncoin.fr/_next/static/chunks/framework-2abbcfecf697e9a2.js	6.1 s	4.1 s	28 ms
www.leboncoin.fr/	2.8 s	176 ms	16 ms
Unattributable	2.7 s	1.0 s	0.0 ms
cdn.hubvisor.io/wrapper/01CE9HZCZVPW9QB522QNNS8MZQ/hubvisor.js	2.4 s	1.8 s	567 ms
www.leboncoin.fr/_next/static/chunks/pages/_app-4542fcc57fd47f46.js	1.8 s	1.4 s	313 ms
www.leboncoin.fr/_next/static/chunks/70025.a7433be5f391f1c1.js	1.4 s	1.4 s	3.5 ms
/sdk/c8e2e67c354c0d6dec2981e079061b37f6a1f337/modern/sdk....	1.4 s	1.0 s	217 ms
server.sgtm.leboncoin.fr/gtm.js?id=GTM-PXTWK33X	783 ms	596 ms	90 ms
dd.leboncoin.fr/tags.js	632 ms	520 ms	26 ms
www.leboncoin.fr/_next/static/chunks/7730-514c76803cf21dba.js	571 ms	516 ms	32 ms
www.leboncoin.fr/_next/static/chunks/40968-4b113af2b24ba2a4.js	557 ms	15 ms	2.9 ms
www.leboncoin.fr/_next/static/chunks/main-ba8e94fb3a33e2cb.js	530 ms	377 ms	27 ms
/sdk/c8e2e67c354c0d6dec2981e079061b37f6a1f337/modern/ui-w...	456 ms	269 ms	135 ms
www.leboncoin.fr/_next/static/chunks/webpack-55c3f4f72a85eab7.js	380 ms	345 ms	26 ms
/gtag/js?id=G-Z707449XJ2&cx=c&gtm=4e6461h2&sign=f9b7a61e0...	379 ms	298 ms	78 ms
/sdk/c8e2e67c354c0d6dec2981e079061b37f6a1f337/modern/src_...	368 ms	247 ms	3.5 ms
/pagead/managed/js/gpt/m202604020101/pubads_impl.js	328 ms	210 ms	90 ms
www.leboncoin.fr/_next/static/chunks/87c73c54-0df74f0fec58f23d.js	254 ms	154 ms	98 ms
www.leboncoin.fr/piano-analytics/pa.js	220 ms	170 ms	13 ms
www.leboncoin.fr/_next/static/chunks/17645-ef23547b8a8fdebf.js	220 ms	194 ms	25 ms
/758b10ac-a0a7-421d-b3a2-f77eaa2897e8/loader.js?target=ww...	204 ms	84 ms	116 ms
www.leboncoin.fr/libertix/libertix.min.js	187 ms	138 ms	48 ms
www.leboncoin.fr/_next/static/chunks/pages/index-d1551c74a394fbb9.js	146 ms	133 ms	13 ms
securepubads.g.doubleclick.net/tag/js/gpt.js	146 ms	123 ms	20 ms
/oauth2callback?error=login_required&error_debug=session+...	121 ms	9.4 ms	29 ms
cdn-eu.realytics.net/realytics-2.1.min.js	104 ms	76 ms	10 ms
www.leboncoin.fr/_next/static/chunks/95656-f7b459eb3db2c1ba.js	104 ms	15 ms	73 ms
www.leboncoin.fr/_next/static/chunks/82827-8f2886a324a692c6.js	92 ms	86 ms	4.8 ms
www.leboncoin.fr/_next/static/chunks/47525-21350fb1fa778642.js	77 ms	44 ms	32 ms
www.leboncoin.fr/_next/static/chunks/DiscoverySection.073c83c9cd0ba742.js	52 ms	45 ms	1.8 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.

Category	Time Spent
Script Evaluation	16.3 s
Style & Layout	3.7 s
Other	2.7 s
Script Parsing & Compilation	2.4 s
Parse HTML & CSS	691 ms
Garbage Collection	610 ms
Rendering	212 ms

Many navigations are performed by going back to a previous page, or forwards again. The back/forward cache (bfcache) can speed up these return navigations. Learn more about the bfcache

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failure reason	Failure type
Pages with cache-control:no-store header cannot enter back/forward cache.	Actionable
Pages whose main resource has cache-control:no-store cannot enter back/forward cache.	Not actionable
Back/forward cache is disabled because some JavaScript network request received resource with Cache-Control: no-store header.	Not actionable

Minifying JavaScript files can reduce payload sizes and script parse time. Learn how to minify JavaScript.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 0.0 ms 6.5 KiB

URL	Transfer Size	Est Savings
ct.captcha-delivery.com/c.js	14.4 KiB	6.5 KiB

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: 0.0 ms 17.4 KiB

URL	Transfer Size	Est Savings
	19.0 KiB	17.4 KiB

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.

URL	Transfer Size
www.leboncoin.fr/_next/static/chunks/pages/_app-4542fcc57fd47f46.js	478.7 KiB
cdn.hubvisor.io/wrapper/01CE9HZCZVPW9QB522QNNS8MZQ/hubvisor.js	365.1 KiB
/captcha/?initialCid=AHrlqAAAAAMAr_Q31-oVDtsABQgiyA%3D%3D...	212.9 KiB
/captcha/?initialCid=AHrlqAAAAAMAr_Q31-oVDtsABQgiyA==&cid...	212.2 KiB
/pagead/managed/js/gpt/m202604020101/pubads_impl.js	182.6 KiB
server.sgtm.leboncoin.fr/gtm.js?id=GTM-PXTWK33X	168.5 KiB
/gtag/js?id=G-Z707449XJ2&cx=c&gtm=4e6461h2&sign=f9b7a61e0...	161.0 KiB
api.leboncoin.fr/api/frontend/v1/data/v7/fdata	119.3 KiB
/sdk/c8e2e67c354c0d6dec2981e079061b37f6a1f337/modern/sdk....	89.7 KiB
www.leboncoin.fr/	88.7 KiB

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

●Document request latency

●Optimize DOM size

●LCP breakdown

●Modern HTTP

●Optimize viewport for mobile

●Minify CSS

●User Timing marks and measures 17 user timings

●Avoid long main-thread tasks 20 long tasks found

●Image elements have explicit `width` and `height`

●Network Requests

●Network Round Trip Times 20 ms

●Server Backend Latencies 40 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 70 ms

○INP breakdown

○Avoid non-composited animations

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
Contenu de la fenêtre de consentement Continuer sans accepter Pour leboncoin, v… `body.font-sans > div#_r_2_ > div#_r_0_`

When an input field 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 more about input field labels.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Valider votre recherche `div.z-sticky > div.pointer-events-auto > div.h-sz-44 > div.z-sticky`

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.

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
Déposer une annonce `div.max-w-page-max > div.min-h-sz-80 > div.z-raised > a.u-shadow-border-transition`

These are opportunities to improve the legibility of your content.

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.

Why this matters

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.

Visible text labels that do not match the accessible name can result in a confusing experience for screen reader users. Learn more about accessible names.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
En savoir plus `div.bg-surface > div.w-full > div.p-xl > button.u-shadow-border-transition`
Accepter & Fermer → `div.bg-surface > div.w-full > div.p-xl > button#didomi-agree-to-all`

○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

●Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.

●`[role]` values are valid

●`[aria-*]` attributes have valid values

●`[aria-*]` attributes are valid and not misspelled

●Buttons have an accessible name

●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 have a discernible name

●No element has a `[tabindex]` value greater than 0

●Touch targets have sufficient size and spacing.

●Heading elements appear in a sequentially-descending order

●Document has a main landmark.

●Deprecated ARIA roles were not used

●ARIA IDs are unique

○`[accesskey]` values are unique

○`button`, `link`, and `menuitem` elements have accessible names

○ARIA `meter` elements have accessible names

○ARIA `progressbar` elements have accessible names

○`[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

○No form fields have multiple labels

○`<html>` element has an `[xml:lang]` attribute with the same base language as the `[lang]` attribute.

○Image elements have `[alt]` attributes

○Input buttons have discernible text.

○`<input type="image">` elements have `[alt]` text

○Form elements have associated labels

○Links are distinguishable without relying on color.

○Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).

○List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements

○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.

○`[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

○Image elements do not have `[alt]` attributes that are redundant text.

○Identical links have the same purpose.

○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.

Best Practices

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.

Source	Description
www.leboncoin.fr/_next/static/chunks/87c73c54-0df74f0fec58f23d.js	Error: Minified React error #418; visit https://react.dev/errors/418?args[]=HTML&args[]= for the full message or use the non-minified dev environment for full errors and additional helpful warnings. at rZ (https://www.leboncoin.fr/_next/static/chunks/87c73c54-0df74f0fec58f23d.js:1:36741) at o9 (https://www.leboncoin.fr/_next/static/chunks/87c73c54-0df74f0fec58f23d.js:1:78629) at id (https://www.leboncoin.fr/_next/static/chunks/87c73c54-0df74f0fec58f23d.js:1:88508) at sh (https://www.leboncoin.fr/_next/static/chunks/87c73c54-0df74f0fec58f23d.js:1:128652) at https://www.leboncoin.fr/_next/static/chunks/87c73c54-0df74f0fec58f23d.js:1:123538 at sr (https://www.leboncoin.fr/_next/static/chunks/87c73c54-0df74f0fec58f23d.js:1:123639) at sq (https://www.leboncoin.fr/_next/static/chunks/87c73c54-0df74f0fec58f23d.js:1:150209) at MessagePort.T (https://www.leboncoin.fr/_next/static/chunks/7730-514c76803cf21dba.js:1:15585)
www.leboncoin.fr/_next/static/chunks/87c73c54-0df74f0fec58f23d.js	Error: Minified React error #418; visit https://react.dev/errors/418?args[]=HTML&args[]= for the full message or use the non-minified dev environment for full errors and additional helpful warnings. at rZ (https://www.leboncoin.fr/_next/static/chunks/87c73c54-0df74f0fec58f23d.js:1:36741) at o9 (https://www.leboncoin.fr/_next/static/chunks/87c73c54-0df74f0fec58f23d.js:1:78629) at id (https://www.leboncoin.fr/_next/static/chunks/87c73c54-0df74f0fec58f23d.js:1:88508) at sh (https://www.leboncoin.fr/_next/static/chunks/87c73c54-0df74f0fec58f23d.js:1:128652) at https://www.leboncoin.fr/_next/static/chunks/87c73c54-0df74f0fec58f23d.js:1:123538 at sr (https://www.leboncoin.fr/_next/static/chunks/87c73c54-0df74f0fec58f23d.js:1:123639) at sq (https://www.leboncoin.fr/_next/static/chunks/87c73c54-0df74f0fec58f23d.js:1:150209) at MessagePort.T (https://www.leboncoin.fr/_next/static/chunks/7730-514c76803cf21dba.js:1:15585)
/api/followme/v1/follower-targeting/eligibility?api_key=b...	`Failed to load resource: the server responded with a status of 401 ()`
api.leboncoin.fr/api/presence/me/status	`Failed to load resource: the server responded with a status of 401 ()`
/api/authorizer/v2/authorize?client_id=lbc-front-web&redi...	`Failed to load resource: the server responded with a status of 403 ()`
api.leboncoin.fr/api/autopromo/v1/placeholders/active-placeholders	`Failed to load resource: the server responded with a status of 403 ()`

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.

URL
www.leboncoin.fr/_next/static/chunks/pages/_app-4542fcc57fd47f46.js
server.sgtm.leboncoin.fr/gtm.js?id=GTM-PXTWK33X

●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 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 DOM-based XSS with Trusted Types

●Detected JavaScript libraries

○Redirects HTTP traffic to HTTPS

○Mitigate clickjacking with XFO or CSP

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

●Document has a valid `hreflang`

●Document has a valid `rel=canonical`

○Image elements have `[alt]` attributes