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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.

8

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.

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:0.377944] map[node:map[boundingRect:map[bottom:0 height:0 left:0 right:0 top:0 width:0] lhId:page-3-SCRIPT nodeLabel:head > script path:1,HTML,0,HEAD,92,SCRIPT selector:head > script snippet:<script type="text/javascript" charset="utf-8" async="" data-requirecontext="_" data-requiremodule="jquery/jquery.cookie" src="https://www.bissell.fr/static/version1777374587/frontend/Wise/bissell-ecom…"> type:node] score:0.228749 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:2876 height:288 left:206 right:206 top:2588 width:0] lhId:page-148-IMG nodeLabel:Pets foundation path:1,HTML,1,BODY,15,DIV,8,SECTION,0,DIV,0,DIV,0,DIV,0,DIV,0,PICTURE,0,IMG selector:div.d-flex > div.align-self-center > picture.d-block > img snippet:<img loading="lazy" src="" alt="Pets foundation"> type:node]]] type:subitems]] map[node:map[boundingRect:map[bottom:0 height:0 left:0 right:0 top:0 width:0] lhId:page-3-SCRIPT nodeLabel:head > script path:1,HTML,0,HEAD,92,SCRIPT selector:head > script snippet:<script type="text/javascript" charset="utf-8" async="" data-requirecontext="_" data-requiremodule="jquery/jquery.cookie" src="https://www.bissell.fr/static/version1777374587/frontend/Wise/bissell-ecom…"> type:node] score:0.149195 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:2876 height:288 left:206 right:206 top:2588 width:0] lhId:page-148-IMG nodeLabel:Pets foundation path:1,HTML,1,BODY,15,DIV,8,SECTION,0,DIV,0,DIV,0,DIV,0,DIV,0,PICTURE,0,IMG selector:div.d-flex > div.align-self-center > picture.d-block > img snippet:<img loading="lazy" src="" alt="Pets foundation"> type:node]]] type:subitems]]]

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.

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:60.46 source:map[column:5300 line:2 type:source-location url:https://www.bissell.com/mobify/bundle/2174/vendors-eaa8b4e8.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:33.976 source:map[type:text value:[unattributed]]] map[reflowTime:13.837 source:map[column:5736 line:0 type:source-location url:https://www.bissell.com/mobify/bundle/2174/vendors-35120423.js urlProvider:network]] map[reflowTime:35.537 source:map[column:11610 line:0 type:source-location url:https://www.bissell.com/mobify/bundle/2174/vendors-35120423.js urlProvider:network]] map[reflowTime:10.726 source:map[column:19451 line:0 type:source-location url:https://www.bissell.com/mobify/bundle/2174/vendors-52ef38c8.js urlProvider:network]] map[reflowTime:0.36 source:map[column:8237 line:0 type:source-location url:https://www.bissell.com/mobify/bundle/2174/components-e1c7d3ef.js 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
a > div.container-fluid > picture.aw-hero__image-mobile > img.aw-hero__image-mobile a > div.container-fluid > picture.aw-hero__image-mobile > img.aw-hero__image-mobile
www.bissell.co.uk/media/wysiwyg/26-01/National_Day_Image_1290x1440_FR_1.png305.4 KiB196.0 KiB
Faites face aux saletés tenaces pour moins cher article.aw-articles__item > a.aw-articles__item-link > figure.aw-articles__item-image-holder > img.aw-articles__item-image
/media/cache/FR/promos/spring-2025/Formulas_3_1_Add_to_ca...48.8 KiB35.1 KiB
Découvrez notre sélection de lots BISSELL exclusifs et soigneusement sélectionn… article.aw-articles__item > a.aw-articles__item-link > figure.aw-articles__item-image-holder > img.aw-articles__item-image
/media/cache/wysiwyg/06-25/Homepage_Top-article_1260x754p...43.4 KiB23.8 KiB

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: a > div.container-fluid > picture.aw-hero__image-mobile > img.aw-hero__image-mobile
path: 1,HTML,1,BODY,15,DIV,3,SECTION,0,A,0,DIV,1,PICTURE,1,IMG
selector: a > div.container-fluid > picture.aw-hero__image-mobile > img.aw-hero__image-mobile
snippet: <img src="https://www.bissell.co.uk/media/wysiwyg/26-01/National_Day_Image_1290x1440…" alt="" class="aw-hero__image-mobile">

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

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.

These insights are also available in the Chrome DevTools Performance Panel - record a trace to view more detailed information.

Lists the toplevel main thread tasks that executed during page load.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Collection of useful page vitals.

Why this matters

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

TTI

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.

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.

ElementLayout shift score
head > script head > script
0.229
head > script head > script
0.149
Découvrez maintenant div.container-fluid > div.aw-hero__block > div.hero-cta > div.button-cta
0.000

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.

Diagnostics

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.

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.

Lists the longest tasks on the main thread, useful for identifying worst contributors to input delay. Learn how to avoid long main-thread tasks

Why this matters

Performance issues directly impact user engagement and conversion rates.

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: 3.5 s 748.6 KiB
URLTransfer SizeEst Savings
cdn.ketchjs.com/ketchtag/stable/v2.12/ketch-sdk.js258.9 KiB148.4 KiB
/static/version1777374587/frontend/Wise/bissell-ecom/fr_F...112.4 KiB73.4 KiB
/static/version1777374587/frontend/Wise/bissell-ecom/fr_F...94.9 KiB55.0 KiB
cdn.weglot.com/weglot.min.js71.6 KiB50.2 KiB
rapid-cdn.yottaa.com/rapid/lib/RFW_QrfQlM92Fw.js44.5 KiB20.2 KiB
/static/version1777374587/frontend/Wise/bissell-ecom/fr_F...25.8 KiB18.0 KiB
www.bissell.com/mobify/bundle/2174/vendors-e843b39e.js46.5 KiB17.0 KiB
js.datadome.co/tags.js40.7 KiB14.9 KiB
/static/version1777374587/frontend/Wise/bissell-ecom/fr_F...23.7 KiB13.3 KiB
/static/version1777374587/frontend/Wise/bissell-ecom/fr_F...19.2 KiB11.5 KiB
/static/version1777374587/frontend/Wise/bissell-ecom/fr_F...21.8 KiB10.8 KiB
www.bissell.com/mobify/bundle/2174/chakra-vendor-5d692d07.js23.3 KiB10.5 KiB
/onsite/js/build-preview/commit-b1cdef0395467d0ad1abcaf43...22.6 KiB10.2 KiB
www.bissell.com/mobify/bundle/2174/vendors-35120423.js23.2 KiB10.2 KiB
/static/version1777374587/frontend/Wise/bissell-ecom/fr_F...18.1 KiB9.9 KiB
www.bissell.com/mobify/bundle/2174/components-e1c7d3ef.js19.4 KiB9.9 KiB
www.bissell.com/mobify/bundle/2174/components-75ef5d4d.js18.1 KiB9.3 KiB
www.bissell.com/mobify/bundle/2174/components-530960e3.js17.5 KiB8.8 KiB
www.bissell.com/mobify/bundle/2174/components-02cad14e.js17.2 KiB8.8 KiB
www.bissell.com/mobify/bundle/2174/vendors-2b4841d6.js18.7 KiB8.2 KiB
/onsite/js/build-preview/commit-b1cdef0395467d0ad1abcaf43...13.6 KiB7.8 KiB
/static/version1777374587/frontend/Wise/bissell-ecom/fr_F...16.7 KiB7.5 KiB
www.bissell.com/mobify/bundle/2174/components-b2378949.js20.0 KiB6.9 KiB
www.bissell.com/mobify/bundle/2174/components-42d082df.js13.5 KiB6.2 KiB
www.bissell.com/mobify/bundle/2174/main.js11.6 KiB6.2 KiB
/static/version1777374587/frontend/Wise/bissell-ecom/fr_F...11.2 KiB6.1 KiB
www.bissell.com/mobify/bundle/2174/vendors-eaa8b4e8.js9.4 KiB6.0 KiB
www.bissell.com/mobify/bundle/2174/chakra-vendor-c3b2cc4a.js14.6 KiB6.0 KiB
/onsite/js/build-preview/commit-b1cdef0395467d0ad1abcaf43...8.1 KiB5.6 KiB
www.bissell.com/mobify/bundle/2174/vendors-bb3d84b5.js16.7 KiB5.5 KiB
/static/version1777374587/frontend/Wise/bissell-ecom/fr_F...11.3 KiB5.5 KiB
/static/version1777374587/frontend/Wise/bissell-ecom/fr_F...9.3 KiB5.5 KiB
/beacon.min.js/v8c78df7c7c0f484497ecbca7046644da177152312...10.6 KiB5.5 KiB
/onsite/js/build-preview/commit-b1cdef0395467d0ad1abcaf43...8.2 KiB5.4 KiB
/static/version1777374587/frontend/Wise/bissell-ecom/fr_F...9.9 KiB5.0 KiB
www.bissell.com/mobify/bundle/2174/vendors-866ab763.js13.9 KiB5.0 KiB
/static/version1777374587/frontend/Wise/bissell-ecom/fr_F...9.9 KiB4.7 KiB
www.bissell.com/mobify/bundle/2174/vendors-662dbc56.js17.2 KiB4.6 KiB
/static/version1777374587/frontend/Wise/bissell-ecom/fr_F...11.9 KiB4.6 KiB
www.bissell.com/mobify/bundle/2174/vendors-ef0a666f.js4.6 KiB4.6 KiB
/static/version1777374587/frontend/Wise/bissell-ecom/fr_F...8.5 KiB4.5 KiB
www.bissell.com/mobify/bundle/2174/vendors-27545368.js9.2 KiB4.4 KiB
/static/version1777374587/frontend/Wise/bissell-ecom/fr_F...11.2 KiB4.1 KiB
/static/version1777374587/frontend/Wise/bissell-ecom/fr_F...7.5 KiB4.0 KiB
www.bissell.com/mobify/bundle/2174/vendors-c27a69b5.js12.4 KiB4.0 KiB
www.bissell.com/mobify/bundle/2174/vendors-3b488dcf.js7.9 KiB3.8 KiB
/onsite/js/build-preview/commit-b1cdef0395467d0ad1abcaf43...10.1 KiB3.8 KiB
/static/version1777374587/frontend/Wise/bissell-ecom/fr_F...7.1 KiB3.7 KiB
/static/version1777374587/frontend/Wise/bissell-ecom/fr_F...6.2 KiB3.6 KiB
www.bissell.com/mobify/bundle/2174/components-43dd7041.js18.5 KiB3.3 KiB
www.bissell.com/mobify/bundle/2174/vendors-52ef38c8.js8.9 KiB3.3 KiB
/static/version1777374587/frontend/Wise/bissell-ecom/fr_F...5.8 KiB3.2 KiB
/static/version1777374587/frontend/Wise/bissell-ecom/fr_F...5.8 KiB3.2 KiB
/static/version1777374587/frontend/Wise/bissell-ecom/fr_F...4.7 KiB3.2 KiB
www.bissell.com/mobify/bundle/2174/vendors-e8ee3528.js16.9 KiB3.0 KiB
/static/version1777374587/frontend/Wise/bissell-ecom/fr_F...3.8 KiB2.9 KiB
/static/version1777374587/frontend/Wise/bissell-ecom/fr_F...6.0 KiB2.9 KiB
global.ketchcdn.com/web/v3/config/bissell/bissell_noam/boot.js4.6 KiB2.9 KiB
/static/version1777374587/frontend/Wise/bissell-ecom/fr_F...5.5 KiB2.8 KiB
/onsite/js/build-preview/commit-b1cdef0395467d0ad1abcaf43...9.9 KiB2.7 KiB
/static/version1777374587/frontend/Wise/bissell-ecom/fr_F...5.0 KiB2.6 KiB
/onsite/js/build-preview/commit-b1cdef0395467d0ad1abcaf43...4.0 KiB2.6 KiB
/static/version1777374587/frontend/Wise/bissell-ecom/fr_F...3.8 KiB2.6 KiB
/static/version1777374587/frontend/Wise/bissell-ecom/fr_F...4.6 KiB2.6 KiB
/onsite/js/build-preview/commit-b1cdef0395467d0ad1abcaf43...4.1 KiB2.6 KiB
/static/version1777374587/frontend/Wise/bissell-ecom/fr_F...3.7 KiB2.6 KiB
/onsite/js/build-preview/commit-b1cdef0395467d0ad1abcaf43...5.6 KiB2.5 KiB
/static/version1777374587/frontend/Wise/bissell-ecom/fr_F...6.3 KiB2.5 KiB
/static/version1777374587/frontend/Wise/bissell-ecom/fr_F...4.3 KiB2.4 KiB
/static/version1777374587/frontend/Wise/bissell-ecom/fr_F...3.5 KiB2.4 KiB
/static/version1777374587/frontend/Wise/bissell-ecom/fr_F...8.0 KiB2.3 KiB
www.bissell.com/mobify/bundle/2174/vendors-8731da8d.js12.4 KiB2.3 KiB
www.bissell.com/mobify/bundle/2174/vendors-aa8b9b63.js13.9 KiB2.1 KiB
/onsite/js/build-preview/commit-b1cdef0395467d0ad1abcaf43...4.0 KiB2.1 KiB
/static/version1777374587/frontend/Wise/bissell-ecom/fr_F...3.7 KiB2.1 KiB
www.bissell.com/mobify/bundle/2174/chakra-vendor-394325ad.js20.0 KiB2.1 KiB
try.abtasty.com/shared/analytics.70563e097248dbdf3087.js6.4 KiB2.1 KiB
www.bissell.com/mobify/bundle/2174/vendors-0bc0478e.js6.4 KiB2.0 KiB
/static/version1777374587/frontend/Wise/bissell-ecom/fr_F...5.0 KiB2.0 KiB
/static/version1777374587/frontend/Wise/bissell-ecom/fr_F...3.1 KiB2.0 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: 540 ms 126.5 KiB
URLTransfer SizeEst Savings
/static/version1777374587/frontend/Wise/bissell-ecom/fr_F...112.2 KiB107.4 KiB
22.1 KiB19.2 KiB

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 reasonFailure 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

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
Bissell div.aw-header-container > div.header-middle > a.aw-logo > img.d-block
/static/version1777374587/frontend/Wise/bissell-ecom/fr_F...
Bissell div.d-flex > div.d-flex > a.my-3 > img.aw-footer__logo
/static/version1777374587/frontend/Wise/bissell-ecom/fr_F...
Pets foundation div.d-flex > div.align-self-center > picture.d-block > img

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 49 user timings
Avoid non-composited animations 162 animated elements found
Network Requests
Network Round Trip Times 100 ms
Server Backend Latencies 220 ms
Metrics
Screenshot Thumbnails
Final Screenshot
Script Treemap Data
Resources Summary
Initial server response time was short Root document took 60 ms
INP breakdown
83

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.

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
ul.flex-container-container > li.flexbox > div.element > button ul.flex-container-container > li.flexbox > div.element > button

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
li.flexbox > div.element > button > img li.flexbox > div.element > button > img

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
Découvrez maintenant div.container-fluid > div.aw-hero__block > div.hero-cta > div.button-cta
Surface de nettoyage section.section > div.container > div.aw-category-tabs > a.aw-category-tab
Inscription div.d-flex > div.d-flex > button.button-cta > span

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.

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
Form elements have associated labels
`button`, `link`, and `menuitem` elements have accessible names
ARIA attributes are used as specified for the element's role
Elements with `role="dialog"` or `role="alertdialog"` have accessible names.
`[aria-hidden="true"]` elements do not contain focusable descendents
ARIA input fields have accessible names
Elements use only permitted ARIA attributes
Document has a `<title>` element
`<html>` element has a `[lang]` attribute
`<html>` element has a valid value for its `[lang]` attribute
Links are distinguishable without relying on color.
Links have a discernible name
Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements
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
Uses ARIA roles only on compatible elements
Elements with visible text labels have matching accessible names.
`[accesskey]` values are unique
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
No form fields have multiple labels
`<frame>` or `<iframe>` elements have a title
`<html>` element has an `[xml:lang]` attribute with the same base language as the `[lang]` attribute.
Input 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.
`[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.
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.
81

Best Practices

General

Deprecated APIs will eventually be removed from the browser. Learn more about deprecated APIs.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Deprecation / WarningSource
Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check https://xhr.spec.whatwg.org/.
js.datadome.co/tags.js line 1, col 32039
Uses HTTPS
Avoids third-party cookies
Allows users to paste into input fields
Avoids requesting the geolocation permission on page load
Avoids requesting the notification permission on page load
Displays images with correct aspect ratio
Serves images with appropriate resolution
Page has the HTML doctype
Properly defines charset
No browser errors logged to the console
No issues in the `Issues` panel in Chrome Devtools
Ensure CSP is effective against XSS attacks
Use a strong HSTS policy
Ensure proper origin isolation with COOP
Mitigate DOM-based XSS with Trusted Types
Detected JavaScript libraries
Page has valid source maps
Redirects HTTP traffic to HTTPS
Mitigate clickjacking with XFO or CSP
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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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
li.flexbox > div.element > button > img li.flexbox > div.element > button > img

Format your HTML in a way that enables crawlers to better understand your app’s content.

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`

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