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.

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
fonts.gstatic.com/s/roboto/v48/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBHMdazQ.woff2	40 ms

A forced reflow occurs when JavaScript queries geometric properties (such as offsetWidth) after styles have been invalidated by a change to the DOM state. This can result in poor performance. Learn more about forced reflows and possible mitigations.

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:source label:Top function call valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]

items: [map[reflowTime:4.548 source:map[column:32997 line:1 type:source-location url:https://www.aljazeera.com/static/js/component~main~6e6dca10.06226fbe.chunk.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:23.436 source:map[column:107297 line:0 type:source-location url:https://www.aljazeera.com/static/js/component~main~b07b7304.f65d7180.chunk.js urlProvider:network]] map[reflowTime:2.542 source:map[column:37526 line:0 type:source-location url:https://www.aljazeera.com/static/js/component~main~5db14389.e1d8d79b.chunk.js urlProvider:network]] map[reflowTime:6.674 source:map[column:37690 line:0 type:source-location url:https://www.aljazeera.com/static/js/component~main~5db14389.e1d8d79b.chunk.js urlProvider:network]] map[reflowTime:6.581 source:map[column:90090 line:0 type:source-location url:https://www.aljazeera.com/static/js/component~main~6e6dca10.06226fbe.chunk.js urlProvider:network]] map[reflowTime:2.36 source:map[column:33138 line:1 type:source-location url:https://www.aljazeera.com/static/js/vendor~main~7dbd8cdd.1cbe70e4.chunk.js urlProvider:network]] map[reflowTime:6.982 source:map[column:169400 line:1 type:source-location url:https://www.aljazeera.com/static/js/vendor~main~7dbd8cdd.1cbe70e4.chunk.js urlProvider:network]] map[reflowTime:3.386 source:map[column:47480 line:0 type:source-location url:https://www.aljazeera.com/static/js/vendor~common-route~featured-gallery~homepage-route~topic-route~vertical-video-experience~video-rout~7433b1ad.87c45a2f.chunk.js urlProvider:network]] map[reflowTime:1.603 source:map[column:69282 line:0 type:source-location url:https://www.aljazeera.com/static/js/vendor~common-route~featured-gallery~homepage-route~topic-route~vertical-video-experience~video-rout~7433b1ad.87c45a2f.chunk.js urlProvider:network]] map[reflowTime:4.548 source:map[column:32643 line:0 type:source-location url:https://www.aljazeera.com/static/js/component~main~6e6dca10.06226fbe.chunk.js urlProvider:network]]]

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

value: No additional origins are good candidates for preconnecting

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
players.brightcove.net/665003303001/UbqgmlUbk_default/index.min.js	300.0 s	331.2 KiB
pagead2.googlesyndication.com/omsdk/releases/live/omweb-v1.js	3600.0 s	15.4 KiB
static.chartbeat.com/js/chartbeat.js	86400.0 s	15.9 KiB
www.gstatic.com/recaptcha/api2/logo_48.png	604800.0 s	2.3 KiB

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
What we know about the shooting by Istanbul’s Israeli consulate `div.vertical-videos-block__video-item > div.vertical-videos-block__video-img-wrapper > div.responsive-image > img.vertical-videos-block__video-thumbnail`	/v1/static/665003303001/e618b63d-45d6-436f-9152-86a0082f8...	450.6 KiB	405.7 KiB
Historic building in Ukraine up in flames after Russia drone attack `div.vertical-videos-block__video-item > div.vertical-videos-block__video-img-wrapper > div.responsive-image > img.vertical-videos-block__video-thumbnail`	/v1/static/665003303001/ed6650b2-c734-4ca8-b99f-577941303...	339.2 KiB	294.3 KiB
Iranians form human chains across bridges, at power plants `div.vertical-videos-block__video-item > div.vertical-videos-block__video-img-wrapper > div.responsive-image > img.vertical-videos-block__video-thumbnail`	/v1/static/665003303001/9247af22-c8bf-4cb4-b1f7-9831b1899...	328.0 KiB	283.2 KiB
Netanyahu: Israel shifting ‘balance of power’ with Iran strikes `div.vertical-videos-block__video-item > div.vertical-videos-block__video-img-wrapper > div.responsive-image > img.vertical-videos-block__video-thumbnail`	/v1/static/665003303001/f1cb1f57-7527-4417-b88c-752b6beb7...	304.2 KiB	259.4 KiB
Massive fire engulfs oil storage tanks near Baghdad `div.vertical-videos-block__video-item > div.vertical-videos-block__video-img-wrapper > div.responsive-image > img.vertical-videos-block__video-thumbnail`	/v1/static/665003303001/de8e5bb4-0558-4748-bdfb-e3150783e...	294.4 KiB	249.5 KiB
Tehran synagogue destroyed as US-Israeli strikes kill over a dozen `div.vertical-videos-block__video-item > div.vertical-videos-block__video-img-wrapper > div.responsive-image > img.vertical-videos-block__video-thumbnail`	/v1/static/665003303001/a3a94ec1-ab93-4b8f-ae93-c70509935...	275.2 KiB	236.2 KiB
Fire erupts near industrial site in Saudi Arabia after Iranian strikes `div.vertical-videos-block__video-item > div.vertical-videos-block__video-img-wrapper > div.responsive-image > img.vertical-videos-block__video-thumbnail`	/v1/static/665003303001/2f145ec9-f2be-46d9-9dca-09eb568ee...	162.2 KiB	117.4 KiB
Trump threatens Iran: ‘A whole civilisation will die tonight’ `div.vertical-videos-block__video-item > div.vertical-videos-block__video-img-wrapper > div.responsive-image > img.vertical-videos-block__video-thumbnail`	/v1/static/665003303001/2984aebd-0c40-464f-9e04-eedaab9ef...	148.5 KiB	109.5 KiB
A woman walks past mockups of Iranian missiles along Valiasr Square in Tehran o… `article.top-story-second-article > div.article-card__image-wrap > div.responsive-image > img.article-card__image`	/wp-content/uploads/2026/04/AFP__20260406__A6UX2BF__v2__M...	105.1 KiB	103.3 KiB
Destroyed building with people in the foreground `article.article-card > div.article-card__image-wrap > div.responsive-image > img.article-card__image`	/wp-content/uploads/2026/04/2-1775577750.jpg?resize=770%2...	100.7 KiB	98.9 KiB
Migrants from Syria and Libya in a wooden boat call for help as they are assist… `article.article-card > div.article-card__image-wrap > div.responsive-image > img.article-card__image`	/wp-content/uploads/2026/04/AP26075539234847-1775587520.j...	93.4 KiB	91.6 KiB
The B1 bridge damaged by a strike, as the U.S.-Israeli conflict with Iran conti… `article.article-card > div.article-card__image-wrap > div.responsive-image > img.article-card__image`	/wp-content/uploads/2026/04/reuters_69d55f9b-1775591323.j...	71.2 KiB	69.4 KiB
A man holds a gun, after gunfire was heard near the building housing the Israel… `article.article-card > div.article-card__image-wrap > div.responsive-image > img.article-card__image`	/wp-content/uploads/2026/04/reuters_69d4d530-1775555888.j...	71.1 KiB	69.2 KiB
(FILES) This photograph shows the newly displayed portraits of French national … `article.article-card > div.article-card__image-wrap > div.responsive-image > img.article-card__image`	/wp-content/uploads/2026/04/afp_69d5327c589d-1775579772.j...	71.0 KiB	69.1 KiB
Spain's and Egypt players react at the end of the international friendly soccer… `article.article-card > div.article-card__image-wrap > div.responsive-image > img.article-card__image`	/wp-content/uploads/2026/04/AP26090761536490-1775588509.j...	58.5 KiB	56.8 KiB
India `article.article-card > div.article-card__image-wrap > div.responsive-image > img.article-card__image`	/wp-content/uploads/2026/04/2012-09-18T120000Z_2073128729...	55.1 KiB	53.5 KiB
Taliban security personnel keep watch near the Durand Line in Gurbuz district o… `article.article-card > div.article-card__image-wrap > div.responsive-image > img.article-card__image`	/wp-content/uploads/2026/02/afp-newsml.afp_.com_.20260227...	41.4 KiB	40.2 KiB
Smoke rises from Tehran after attacks. `article.article-card > div.article-card__image-wrap > div.responsive-image > img.article-card__image`	/wp-content/uploads/2026/03/Live-tracker-04-1772372283.pn...	49.4 KiB	37.3 KiB
div.live-stream-widget > div.aj-video-player > video-js#vjs_video_3 > video#vjs_video_3_html5_api `div.live-stream-widget > div.aj-video-player > video-js#vjs_video_3 > video#vjs_video_3_html5_api`	/wp-content/uploads/2025/06/live-poster-aje-1750250701.jp...	39.2 KiB	23.7 KiB
Shelly Kittleson, an American woman journalist who was kidnapped in Baghdad on … `article.article-card > div.article-card__image-wrap > div.responsive-image > img.article-card__image`	/wp-content/uploads/2026/04/reuters_69d543b1-1775584177.j...	22.4 KiB	21.7 KiB
Amir Ali, in his 50s, says someday he hopes to find peace in hostile Assam. `a.u-clickable-card__link > div.article-card__image-wrap > div.responsive-image > img.article-card__image`	/wp-content/uploads/2026/04/Amir-Ali-in-his-50s-says-some...	13.2 KiB	5.3 KiB
A building stands in partial ruin. `a.u-clickable-card__link > div.article-card__image-wrap > div.responsive-image > img.article-card__image`	/wp-content/uploads/2026/04/2-1775324550.jpg?resize=270%2...	12.5 KiB	4.5 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.

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 64.1 KiB

URL	Transfer Size	Est Savings
/static/css/component~common-route~homepage-route~login-r...	18.4 KiB	17.0 KiB
/static/css/component~amp-route~article-route~common-rout...	14.1 KiB	12.7 KiB
www.aljazeera.com/static/css/component~main~5db14389.a2a12ec9.chunk.css	14.1 KiB	12.0 KiB
/static/css/component~homepage-route~493df0b3.1cb62611.ch...	13.3 KiB	11.9 KiB
www.aljazeera.com/static/css/component~main~748942c6.0b0f4c62.chunk.css	12.4 KiB	10.6 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: 1.1 s 924.9 KiB

URL	Transfer Size	Est Savings
www.gstatic.com/recaptcha/releases/kUYUkUlSyqkjTSMaN2w3RaOh/recaptcha__en.js	362.6 KiB	179.4 KiB
players.brightcove.net/665003303001/UbqgmlUbk_default/index.min.js	330.7 KiB	172.1 KiB
www.googletagmanager.com/gtag/js?id=G-XN9JB9Q0M1&cx=c&gtm=4e6461h2	166.5 KiB	113.0 KiB
imasdk.googleapis.com/js/sdkloader/ima3.js	146.5 KiB	80.4 KiB
www.googletagmanager.com/gtag/js?id=G-XN9JB9Q0M1	166.5 KiB	69.0 KiB
www.googletagmanager.com/gtm.js?id=GTM-MJWQ5L2	116.5 KiB	61.3 KiB
www.aljazeera.com/static/js/vendor~main~7dbd8cdd.1cbe70e4.chunk.js	66.5 KiB	42.5 KiB
/static/js/component~amp-route~article-route~common-route...	53.3 KiB	31.1 KiB
www.aljazeera.com/static/js/firebase-packages~7dbd8cdd.77b48d1d.chunk.js	39.4 KiB	28.5 KiB
www.aljazeera.com/static/js/component~AudioPlayer~493df0b3.a2a320ec.chunk.js	30.9 KiB	28.1 KiB
www.aljazeera.com/static/js/vendor~main~e5e84d97.85379177.chunk.js	72.5 KiB	26.6 KiB
www.aljazeera.com/static/js/component~main~b07b7304.f65d7180.chunk.js	60.4 KiB	25.8 KiB
www.aljazeera.com/static/js/graphql-core~7dbd8cdd.6500d372.chunk.js	49.3 KiB	23.3 KiB
/static/js/vendor~common-route~featured-gallery~homepage-...	34.7 KiB	21.9 KiB
www.aljazeera.com/static/js/component~main~748942c6.7c12b04d.chunk.js	83.3 KiB	21.7 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.

URL	Total CPU Time	Script Evaluation	Script Parse
www.aljazeera.com/	3.6 s	92 ms	37 ms
www.aljazeera.com/static/js/main.c92ae429.js	2.1 s	1.7 s	0.9 ms
www.gstatic.com/recaptcha/releases/kUYUkUlSyqkjTSMaN2w3RaOh/recaptcha__en.js	1.0 s	937 ms	82 ms
Unattributable	814 ms	64 ms	0.0 ms
www.aljazeera.com/static/js/brightcove-libs~7dbd8cdd.63f20213.chunk.js	643 ms	561 ms	1.4 ms
players.brightcove.net/665003303001/UbqgmlUbk_default/index.min.js	610 ms	372 ms	110 ms
www.googletagmanager.com/gtag/js?id=G-XN9JB9Q0M1	246 ms	201 ms	44 ms
imasdk.googleapis.com/js/sdkloader/ima3.js	207 ms	156 ms	49 ms
www.googletagmanager.com/gtm.js?id=GTM-MJWQ5L2	162 ms	127 ms	27 ms
www.aljazeera.com/static/js/react-core~7dbd8cdd.03b5246c.chunk.js	113 ms	39 ms	13 ms
/static/js/vendor~common-route~featured-gallery~homepage-...	92 ms	25 ms	16 ms
static.chartbeat.com/js/chartbeat.js	84 ms	73 ms	4.4 ms
www.aljazeera.com/static/js/component~main~6e6dca10.06226fbe.chunk.js	81 ms	30 ms	19 ms
pagead2.googlesyndication.com/omsdk/releases/live/omweb-v1.js	75 ms	65 ms	4.1 ms
www.googletagmanager.com/gtag/js?id=G-XN9JB9Q0M1&cx=c&gtm=4e6461h2	62 ms	25 ms	36 ms
cdn.amplitude.com/libs/analytics-browser-2.0.0-min.js.gz	54 ms	41 ms	12 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	4.7 s
Other	3.2 s
Style & Layout	1.3 s
Script Parsing & Compilation	689 ms
Rendering	306 ms
Garbage Collection	133 ms
Parse HTML & CSS	129 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.

URL	Transfer Size
/v1/static/665003303001/e618b63d-45d6-436f-9152-86a0082f8...	451.5 KiB
www.gstatic.com/recaptcha/releases/kUYUkUlSyqkjTSMaN2w3RaOh/recaptcha__en.js	363.2 KiB
www.gstatic.com/recaptcha/releases/kUYUkUlSyqkjTSMaN2w3RaOh/recaptcha__en.js	362.7 KiB
/v1/static/665003303001/ed6650b2-c734-4ca8-b99f-577941303...	339.9 KiB
players.brightcove.net/665003303001/UbqgmlUbk_default/index.min.js	331.2 KiB
/v1/static/665003303001/9247af22-c8bf-4cb4-b1f7-9831b1899...	328.7 KiB
/v1/static/665003303001/f1cb1f57-7527-4417-b88c-752b6beb7...	304.9 KiB
/v1/static/665003303001/de8e5bb4-0558-4748-bdfb-e3150783e...	295.0 KiB
/v1/static/665003303001/a3a94ec1-ab93-4b8f-ae93-c70509935...	275.9 KiB
imasdk.googleapis.com/js/core/bridge3.755.3_en.html?gdpr=1	270.7 KiB

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

●Layout shift culprits

●Document request latency

●Optimize DOM size

●LCP breakdown

●Modern HTTP

●Render blocking requests

●Optimize viewport for mobile

●Minify CSS

●Minify JavaScript

●User Timing marks and measures 11 user timings

●Avoid long main-thread tasks 20 long tasks found

●Avoid non-composited animations 1 animated element found

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

●Page didn't prevent back/forward cache restoration

●Network Requests

●Network Round Trip Times 100 ms

●Server Backend Latencies 180 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 40 ms

○INP breakdown

○LCP request discovery

○Avoid large layout shifts

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

Focusable descendents within an `[aria-hidden="true"]` element prevent those interactive elements from being available to users of assistive technologies like screen readers. Learn how `aria-hidden` affects focusable elements.

Why this matters

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

Source: MDN Permissions-Policy

Failing Elements
Play Video This video may contain light patterns or images that could trigger s… `div.three-col-layout__stories > article.article-card > div.article-card__liveblog-img-container > div.article-card__image-wrap`
Opinion by Ahmed al-Shalafi Ahmed al-Shalafi `li > article.card-opinion-alternate > div.card-opinion-alternate__content > div.card-opinion-alternate__meta`
Opinion by Ibrahim Al-Marashi Ibrahim Al-Marashi `li > article.card-opinion-alternate > div.card-opinion-alternate__content > div.card-opinion-alternate__meta`

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
protected by reCAPTCHA `div.l-col > section#news-feed-container > div.sib-newsletter-form > span.google-recaptcha-policy`

These are opportunities to improve the legibility of your content.

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
Massive fire engulfs oil storage tanks near Baghdad `div#swiper-wrapper-c296ff2138c61ce5 > div.swiper-slide > div.vertical-videos-block__video-item > a.vertical-videos-block__video-link`
Iranians form human chains across bridges, at power plants `div#swiper-wrapper-c296ff2138c61ce5 > div.swiper-slide > div.vertical-videos-block__video-item > a.vertical-videos-block__video-link`
Subscribe `form#sib-form-card > div.sib-newsletter-form-fields-container > div.sib-newsletter-form-fields > button.sib-form-submit`

○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

●Buttons have an accessible name

●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

●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

●All heading elements contain content.

○`[accesskey]` values are unique

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

○Elements with `role="dialog"` or `role="alertdialog"` 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

○`<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>`.

○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.

100

Best Practices

●Uses HTTPS

●Avoids deprecated APIs

●Avoids third-party cookies

●Allows users to paste into input fields

●Avoids requesting the geolocation permission on page load

●Avoids requesting the notification permission on page load

●Displays images with correct aspect ratio

●Serves images with appropriate resolution

●Page has the HTML doctype

●Properly defines charset

●No browser errors logged to the console

●No issues in the `Issues` panel in Chrome Devtools

●Ensure CSP is effective against XSS attacks

●Use a strong HSTS policy

●Ensure proper origin isolation with COOP

●Mitigate 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

100

SEO

These checks ensure that your page is following basic search engine optimization advice. There are many additional factors Lighthouse does not score here that may affect your search ranking, including performance on Core Web Vitals. Learn more about Google Search Essentials.

○Structured data is valid

●Page isn’t blocked from indexing

●Document has a `<title>` element

●Document has a meta description

●Page has successful HTTP status code

●Links have descriptive text

●Links are crawlable

●robots.txt is valid

●Image elements have `[alt]` attributes

●Document has a valid `hreflang`

●Document has a valid `rel=canonical`