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.

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:Source valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]

items: [map[reflowTime:32.059 source:map[column:107735 line:0 type:source-location url:https://www.aljazeera.com/static/js/component~main~b07b7304.29fee353.chunk.js urlProvider:network]] map[reflowTime:3.962 source:map[column:37562 line:0 type:source-location url:https://www.aljazeera.com/static/js/component~main~5db14389.3795bf11.chunk.js urlProvider:network]] map[reflowTime:8.867 source:map[column:37726 line:0 type:source-location url:https://www.aljazeera.com/static/js/component~main~5db14389.3795bf11.chunk.js urlProvider:network]] map[reflowTime:8.464 source:map[column:94120 line:0 type:source-location url:https://www.aljazeera.com/static/js/component~main~6e6dca10.308560bb.chunk.js urlProvider:network]] map[reflowTime:4.011 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:10.886 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:3.733 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:2.593 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]]]

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

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
a.pub.network/aljazeera-com/prebid.js	3600.0 s	167.2 KiB
a.pub.network/aljazeera-com/pubfig.engine.mobile.js	1800.0 s	141.3 KiB
/scripts/fbc1ae46ca1648e1001502b614ee99bb89881227aee2fc44...	3600.0 s	141.9 KiB
c.amazon-adsystem.com/aax2/apstag.js	3600.0 s	90.9 KiB
/pagead/managed/js/activeview/current/ufs_web_display.js	3600.0 s	73.1 KiB
cdn.cookielaw.org/scripttemplates/202601.2.0/otBannerSdk.js	86400.0 s	128.4 KiB
btloader.com/tag?o=5714937848528896&upapi=true	300.0 s	29.7 KiB
a.pub.network/aljazeera-com/pubfig.min.js	1800.0 s	28.8 KiB
pagead2.googlesyndication.com/omsdk/releases/live/omweb-v1.js	3600.0 s	15.4 KiB
cdn.onesignal.com/sdks/web/v16/OneSignalSDK.page.es6.js?v=160603	259200.0 s	42.1 KiB
eus.rubiconproject.com/usync.js	26971.0 s	11.5 KiB
static.chartbeat.com/js/chartbeat.js	86400.0 s	15.9 KiB
config.aps.amazon-adsystem.com/configs/0ab198dd-b265-462a-ae36-74e163ad6159	3600.0 s	6.8 KiB
static.chartbeat.com/js/chartbeat_mab.js	86400.0 s	10.1 KiB
cdn.cookielaw.org/scripttemplates/otSDKStub.js	86400.0 s	9.1 KiB
api.onesignal.com/sync/fb3606cf-1b0a-44e7-b314-9c4173ac1b5e/web?callback=__jp0	3600.0 s	2.2 KiB
tpc.googlesyndication.com/pagead/js/r20260414/r20110914/abg_lite_fy2021.js	1209600.0 s	8.4 KiB
rules.quantcount.com/rules-p-DAMBunjxFvwVp.js	300.0 s	582 B
a.pub.network/core/imgs/1.png?x=2026-04-15T22%3A59%3A38.424	3600.0 s	641 B
sync.cootlogix.com/api/cookie?partnerId=rubiconut&userId=MO0NKMOG-24-JXIU	0.0 ms	496 B
/track/cmb/generic?ttd_pid=sirnsvg&ttd_tpi=1&gdpr=0&gdpr_...	0.0 ms	255 B
/track/cmb/generic?ttd_pid=yieldmo&ttd_tpi=1&ttd_puid=wcp...	0.0 ms	254 B
cdn.onesignal.com/sdks/web/v16/OneSignalSDK.page.js	259200.0 s	898 B
/pagead/js/r20260414/r20110914/client/window_focus_fy2021.js	1209600.0 s	1.6 KiB
cdn.indexww.com/ht/htw-pixel.gif?0	86400.0 s	228 B
/AdServer/ImgSync?p=160318&gdpr=&gdpr_consent=&pu=https%3...	0.0 ms	40 B
/hadron.js?url=https%3A%2F%2Fwww.aljazeera.com%2F&ref=&_i...	432000.0 s	186 B
cdn.hadronid.net/hadron.js?partner_id=474&_it=prebid	432000.0 s	94 B
/pagead/managed/js/activeview/current/ufs_web_display.js	3600.0 s	0 B
eus.rubiconproject.com/usync.js	26971.0 s	0 B
eus.rubiconproject.com/usync.js	26971.0 s	0 B
tpc.googlesyndication.com/pagead/js/r20260414/r20110914/abg_lite_fy2021.js	1209600.0 s	0 B
/pagead/js/r20260414/r20110914/client/window_focus_fy2021.js	1209600.0 s	0 B
cdn.indexww.com/ht/htw-pixel.gif?0	86400.0 s	0 B

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
Arab Barghouti says rights groups must do more for Palestinian prisoners `div.vertical-videos-block__video-item > div.vertical-videos-block__video-img-wrapper > div.responsive-image > img.vertical-videos-block__video-thumbnail`	/v1/static/665003303001/0f4ef6fa-e601-46ec-9c0c-c05717537...	631.5 KiB	596.0 KiB
Israel’s High Court hears petitions to oust Ben-Gvir `div.vertical-videos-block__video-item > div.vertical-videos-block__video-img-wrapper > div.responsive-image > img.vertical-videos-block__video-thumbnail`	/v1/static/665003303001/3aab0496-a2f9-4f6a-ae99-da08c7068...	254.6 KiB	209.7 KiB
Guterres urges end to arms flow as Sudan war enters fourth year `div.vertical-videos-block__video-item > div.vertical-videos-block__video-img-wrapper > div.responsive-image > img.vertical-videos-block__video-thumbnail`	/v1/static/665003303001/174f7646-6c1a-4cba-9e82-f3c910747...	209.8 KiB	171.5 KiB
Pakistani army chief in Tehran amid bid to restart US talks `div.vertical-videos-block__video-item > div.vertical-videos-block__video-img-wrapper > div.responsive-image > img.vertical-videos-block__video-thumbnail`	/v1/static/665003303001/012034f8-fdb2-4d9b-8ec0-fc5fd94e6...	161.0 KiB	125.2 KiB
White House: No formal ceasefire extension requests `div.vertical-videos-block__video-item > div.vertical-videos-block__video-img-wrapper > div.responsive-image > img.vertical-videos-block__video-thumbnail`	/v1/static/665003303001/145e6be4-64fa-4bde-950a-b68021b1e...	136.8 KiB	122.2 KiB
Checkpoints and settler attacks shrink Palestinian West Bank `div.vertical-videos-block__video-item > div.vertical-videos-block__video-img-wrapper > div.responsive-image > img.vertical-videos-block__video-thumbnail`	/v1/static/665003303001/393631ff-3e33-4822-be80-68353a13d...	118.1 KiB	103.4 KiB
Is Iran beating the US at its own propaganda game? `div.vertical-videos-block__video-item > div.vertical-videos-block__video-img-wrapper > div.responsive-image > img.vertical-videos-block__video-thumbnail`	/v1/static/665003303001/87d9f911-ea69-46c0-a13e-e14952148...	104.8 KiB	78.8 KiB
OURE CASSONI, CHAD - FEBRUARY 24: Newly arrived Sudanese refugees prepare to ri… `article.article-card > div.article-card__image-wrap > div.responsive-image > img.article-card__image`	/wp-content/uploads/2026/03/getty_69b17d37b5-1773239607.j...	63.8 KiB	62.0 KiB
Israel's “digital occupation" of south Lebanon \| Digital Dilemma `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/eceae7da-b52e-4b4f-a4fd-49abfeb87...	74.2 KiB	59.6 KiB
Iran `article.top-story-second-article > div.article-card__image-wrap > div.responsive-image > img.article-card__image`	/wp-content/uploads/2026/04/AP26103593498039-1776106909.j...	58.4 KiB	56.7 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
Crowd of children sits under a tree and listens to a teacher. `div.card-gallery__image-wrap > div.react_lightgallery_item > div.responsive-image > img.card-gallery__image`	/wp-content/uploads/2026/04/RS33578_untitled-6098-1776144...	52.8 KiB	37.0 KiB
body.jar > div#google_image_div > a#aw0 > img.img_ad `body.jar > div#google_image_div > a#aw0 > img.img_ad`	tpc.googlesyndication.com/simgad/8955218980117883587	43.3 KiB	31.1 KiB
Soccer Football - UEFA Champions League - Quarter Final - Second Leg - Bayern M… `article.article-card > div.article-card__image-wrap > div.responsive-image > img.article-card__image`	/wp-content/uploads/2026/04/reuters_69dffebd-1776287421.j...	27.9 KiB	27.1 KiB
A Havana local smokes a cigar on the Malecón - the city’s waterfront area. Both… `article.article-card > div.article-card__image-wrap > div.responsive-image > img.article-card__image`	/wp-content/uploads/2026/04/DSC02741-1775944580.jpg?resiz...	26.3 KiB	25.5 KiB
John Thune `article.article-card > div.article-card__image-wrap > div.responsive-image > img.article-card__image`	/wp-content/uploads/2026/04/AP26092526992734-1-1776279443...	25.4 KiB	24.7 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
ticket master `article.article-card > div.article-card__image-wrap > div.responsive-image > img.article-card__image`	/wp-content/uploads/2024/10/AFP__20240530__1442595277__v2...	24.0 KiB	23.3 KiB
FILE PHOTO: Senator Flavio Bolsonaro attends a press conference outside a hospi… `article.article-card > div.article-card__image-wrap > div.responsive-image > img.article-card__image`	/wp-content/uploads/2026/04/reuters_69e00328-1776288552.j...	20.9 KiB	20.3 KiB
epa12887695 US President Donald Trump speaks to members of the media outside th… `article.article-card > div.article-card__image-wrap > div.responsive-image > img.article-card__image`	/wp-content/uploads/2026/04/epa_69dfec026526-1776282626.j...	18.5 KiB	18.0 KiB
body.jar > div#google_image_div > a#aw0 > img.img_ad `body.jar > div#google_image_div > a#aw0 > img.img_ad`	tpc.googlesyndication.com/simgad/16558139913559775639	18.1 KiB	15.5 KiB
BUDAPEST, HUNGARY - APRIL 13: Peter Magyar, lead candidate of the Tisza party, … `article.article-card > div.article-card__image-wrap > div.responsive-image > img.article-card__image`	/wp-content/uploads/2026/04/getty_69dd2276b4-1776099958.j...	13.1 KiB	12.7 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.

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: 1.2 s

URL	Time Spent
aljazeera.com/	1.2 s
www.aljazeera.com/	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: 600 ms 97.7 KiB

URL	Transfer Size	Est Savings
www.aljazeera.com/static/css/card-gallery-big~493df0b3.704a3aa0.chunk.css	22.3 KiB	21.2 KiB
/static/css/component~common-route~homepage-route~login-r...	17.9 KiB	16.4 KiB
/static/css/component~amp-route~article-route~common-rout...	14.5 KiB	14.0 KiB
/static/css/component~homepage-route~493df0b3.1cb62611.ch...	13.3 KiB	12.7 KiB
www.aljazeera.com/static/css/component~main~5db14389.8684186c.chunk.css	14.2 KiB	12.0 KiB
www.aljazeera.com/static/css/component~main~748942c6.dded1be8.chunk.css	12.4 KiB	11.1 KiB
	13.0 KiB	10.2 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: 900 ms 1.2 MiB

URL	Transfer Size	Est Savings
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=4e64e1	167.1 KiB	113.7 KiB
/pagead/managed/js/gpt/m202604100101/pubads_impl.js	186.4 KiB	95.8 KiB
imasdk.googleapis.com/js/sdkloader/ima3.js	146.7 KiB	79.5 KiB
cdn.cookielaw.org/scripttemplates/202601.2.0/otBannerSdk.js	128.2 KiB	78.2 KiB
www.googletagmanager.com/gtag/js?id=G-XN9JB9Q0M1	167.0 KiB	69.9 KiB
a.pub.network/aljazeera-com/prebid.js	166.7 KiB	69.9 KiB
a.pub.network/aljazeera-com/pubfig.engine.mobile.js	140.8 KiB	60.3 KiB
www.googletagmanager.com/gtm.js?id=GTM-MJWQ5L2	117.1 KiB	60.1 KiB
www.aljazeera.com/static/js/vendor~main~7dbd8cdd.1cbe70e4.chunk.js	66.5 KiB	42.2 KiB
/static/js/component~amp-route~article-route~common-route...	58.0 KiB	36.2 KiB
c.amazon-adsystem.com/aax2/apstag.js	90.4 KiB	35.6 KiB
/pagead/managed/js/activeview/current/ufs_web_display.js	73.1 KiB	31.0 KiB
/pagead/managed/js/activeview/current/ufs_web_display.js	73.1 KiB	30.3 KiB
cdn.onesignal.com/sdks/web/v16/OneSignalSDK.page.es6.js?v=160603	41.6 KiB	28.8 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~493df0b3.93fe5964.chunk.js	30.9 KiB	28.1 KiB
www.aljazeera.com/static/js/vendor~main~e5e84d97.b0c974cb.chunk.js	72.6 KiB	26.7 KiB
www.aljazeera.com/static/js/component~main~b07b7304.29fee353.chunk.js	60.5 KiB	25.6 KiB
www.aljazeera.com/static/js/component~main~748942c6.ab00418b.chunk.js	82.9 KiB	24.8 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

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/	3.8 s	149 ms	70 ms
www.aljazeera.com/static/js/main.04abe9c9.js	3.0 s	2.4 s	1.2 ms
Unattributable	2.3 s	601 ms	0.0 ms
/scripts/fbc1ae46ca1648e1001502b614ee99bb89881227aee2fc44...	2.2 s	2.1 s	91 ms
/pagead/managed/js/gpt/m202604100101/pubads_impl.js	1.9 s	1.7 s	82 ms
/pagead/managed/js/activeview/current/ufs_web_display.js	1.1 s	901 ms	63 ms
www.aljazeera.com/static/js/brightcove-libs~7dbd8cdd.63f20213.chunk.js	999 ms	820 ms	21 ms
players.brightcove.net/665003303001/UbqgmlUbk_default/index.min.js	952 ms	535 ms	160 ms
a.pub.network/aljazeera-com/prebid.js	456 ms	375 ms	66 ms
a.pub.network/aljazeera-com/pubfig.engine.mobile.js	451 ms	355 ms	68 ms
c.amazon-adsystem.com/aax2/apstag.js	435 ms	285 ms	45 ms
www.googletagmanager.com/gtag/js?id=G-XN9JB9Q0M1	366 ms	296 ms	68 ms
imasdk.googleapis.com/js/sdkloader/ima3.js	353 ms	289 ms	60 ms
static.chartbeat.com/js/chartbeat.js	339 ms	119 ms	5.6 ms
btloader.com/tag?o=5714937848528896&upapi=true	335 ms	272 ms	13 ms
www.googletagmanager.com/gtm.js?id=GTM-MJWQ5L2	303 ms	254 ms	43 ms
cdn.cookielaw.org/scripttemplates/202601.2.0/otBannerSdk.js	234 ms	121 ms	68 ms
cdn.onesignal.com/sdks/web/v16/OneSignalSDK.page.es6.js?v=160603	177 ms	124 ms	19 ms
pagead2.googlesyndication.com/omsdk/releases/live/omweb-v1.js	137 ms	125 ms	6.0 ms
www.googletagmanager.com/gtag/js?id=G-XN9JB9Q0M1&cx=c&gtm=4e64e1	129 ms	60 ms	67 ms
a.pub.network/aljazeera-com/pubfig.min.js	117 ms	103 ms	10 ms
securepubads.g.doubleclick.net/tag/js/gpt.js	114 ms	98 ms	15 ms
www.aljazeera.com/static/js/react-core~7dbd8cdd.03b5246c.chunk.js	96 ms	48 ms	22 ms
cdn.amplitude.com/libs/analytics-browser-2.0.0-min.js.gz	80 ms	55 ms	7.1 ms
config.aps.amazon-adsystem.com/configs/0ab198dd-b265-462a-ae36-74e163ad6159	77 ms	51 ms	24 ms
secure.quantserve.com/quant.js	71 ms	65 ms	4.5 ms
/static/js/vendor~common-route~featured-gallery~homepage-...	69 ms	42 ms	15 ms
ep2.adtrafficquality.google/sodar/sodar2.js	69 ms	61 ms	2.8 ms
www.aljazeera.com/static/js/component~main~6e6dca10.308560bb.chunk.js	60 ms	15 ms	22 ms
www.aljazeera.com/static/js/vendor~main~7dbd8cdd.1cbe70e4.chunk.js	59 ms	28 ms	27 ms
tpc.googlesyndication.com/pagead/js/r20260414/r20110914/abg_lite_fy2021.js	56 ms	45 ms	5.8 ms
www.aljazeera.com/static/js/vendor~main~e5e84d97.b0c974cb.chunk.js	52 ms	17 ms	32 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	12.7 s
Other	4.7 s
Style & Layout	1.7 s
Script Parsing & Compilation	1.5 s
Garbage Collection	333 ms
Parse HTML & CSS	295 ms
Rendering	289 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/665003303001/0f4ef6fa-e601-46ec-9c0c-c05717537...	632.5 KiB
players.brightcove.net/665003303001/UbqgmlUbk_default/index.min.js	331.2 KiB
imasdk.googleapis.com/js/core/bridge3.757.0_en.html	270.9 KiB
/v1/static/665003303001/3aab0496-a2f9-4f6a-ae99-da08c7068...	255.2 KiB
/v1/static/665003303001/174f7646-6c1a-4cba-9e82-f3c910747...	210.4 KiB
/pagead/managed/js/gpt/m202604100101/pubads_impl.js	186.4 KiB
a.pub.network/aljazeera-com/prebid.js	167.2 KiB
www.googletagmanager.com/gtag/js?id=G-XN9JB9Q0M1&cx=c&gtm=4e64e1	167.1 KiB
www.googletagmanager.com/gtag/js?id=G-XN9JB9Q0M1	167.1 KiB
/v1/static/665003303001/012034f8-fdb2-4d9b-8ec0-fc5fd94e6...	161.5 KiB

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

●LCP breakdown

●Modern HTTP

●Render blocking requests

●Optimize viewport for mobile

●Minify CSS

●Minify JavaScript

●User Timing marks and measures 36 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 210 ms

●Server Backend Latencies 1,170 ms

●Tasks

●Diagnostics

●Metrics

●Screenshot Thumbnails

●Final Screenshot

●Script Treemap Data

●Resources Summary

●Initial server response time was short Root document took 10 ms

●Avoid large layout shifts 1 layout shift found

○INP breakdown

○LCP request discovery

100

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.

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
White House: No formal ceasefire extension requests `div#swiper-wrapper-cd3328e853e041044 > div.swiper-slide > div.vertical-videos-block__video-item > a.vertical-videos-block__video-link`
Guterres urges end to arms flow as Sudan war enters fourth year `div#swiper-wrapper-cd3328e853e041044 > div.swiper-slide > div.vertical-videos-block__video-item > a.vertical-videos-block__video-link`
Learn more about our Cookie Policy. `div#onetrust-group-container > div#onetrust-policy > div#onetrust-policy-text > a.ot-cookie-policy-link`

○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

●`[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 with `role="dialog"` or `role="alertdialog"` have accessible names.

●`[aria-hidden="true"]` elements do not contain focusable descendents

●Elements use only permitted ARIA attributes

●Background and foreground colors have a sufficient contrast ratio

●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.

●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

○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

○Form elements have associated labels

○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.

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 / Warning	Source
Topics	a.pub.network/aljazeera-com/prebid.js line 83, col 1157
SharedStorage	/pagead/managed/js/activeview/current/ufs_web_display.js line 252, col 234

●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

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`