Lighthouse Desktop

· 0 checks — Desktop 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:74.804 source:map[type:text value:[unattributed]]]]

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: article.Teaser_teaser__XImzE > div.Teaser_cover-wrapper__VVV7O > picture > img

path: 1,HTML,1,BODY,11,MAIN,1,DIV,0,SECTION,0,DIV,0,ARTICLE,0,DIV,0,PICTURE,3,IMG

selector: article.Teaser_teaser__XImzE > div.Teaser_cover-wrapper__VVV7O > picture > img

snippet: <img alt="" src="https://i2-prod.walesonline.co.uk/article33820479.ece/ALTERNATES/s950/0_25…">

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

value: no origins were preconnected

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
/scripts/370edbafa5296ef2074359ed0f0cb50d2775bd2cd6067dc8...	3600.0 s	151.6 KiB
cmp.inmobi.com/tcfv2/61/cmp2.js?referer=walesonline.co.uk	172800.0 s	133.5 KiB
cmp.inmobi.com/tcfv2/61/cmp2ui-en.js	172800.0 s	125.4 KiB
mantishydra.mantis-awx.com/chunks/szeqxrg8.hydra.js	0.0 ms	18.4 KiB
mantishydra.mantis-awx.com/chunks/3z5bfmyb.hydra.js	0.0 ms	15.4 KiB
cdn.onesignal.com/sdks/web/v16/OneSignalSDK.page.es6.js?v=160603	259200.0 s	42.1 KiB
feliz-web.data.tm-awx.com/smile-web.min.js	600.0 s	7.1 KiB
cmp.inmobi.com/choice/JYWDqeLS64fbt/walesonline.co.uk/choice.js?tag_version=V3	900.0 s	4.5 KiB
uk-script.dotmetrics.net/Scripts/ncs-script.js?v=362	0.0 ms	2.9 KiB
feliz-web.data.tm-awx.com/xs.min.js	600.0 s	3.0 KiB
mantishydra.mantis-awx.com/chunks/m8bqp96h.hydra.js	0.0 ms	2.0 KiB
api.onesignal.com/sync/e7afa7c3-24ae-4159-964f-7374b4fae9fe/web?callback=__jp0	3600.0 s	2.4 KiB
mantishydra.mantis-awx.com/reach/walesonline/homepage/hydra.js	0.0 ms	1.9 KiB
mantishydra.mantis-awx.com/chunks/cggkjeyy.hydra.js	0.0 ms	1.8 KiB
mantishydra.mantis-awx.com/chunks/anqayp30.hydra.js	0.0 ms	1.8 KiB
mantishydra.mantis-awx.com/chunks/6gwqfdxp.hydra.js	0.0 ms	1.7 KiB
mantishydra.mantis-awx.com/chunks/g8p351dy.hydra.js	0.0 ms	1.7 KiB
mantishydra.mantis-awx.com/chunks/gt0q325f.hydra.js	0.0 ms	1.3 KiB
mantishydra.mantis-awx.com/chunks/0a4q3jph.hydra.js	0.0 ms	1.2 KiB
mantishydra.mantis-awx.com/chunks/n54hf9mw.hydra.js	0.0 ms	949 B
mantishydra.mantis-awx.com/chunks/hbzggpz9.hydra.js	0.0 ms	900 B
mantishydra.mantis-awx.com/chunks/jzsyfby3.hydra.js	0.0 ms	806 B
mantishydra.mantis-awx.com/chunks/qb936cqm.hydra.js	0.0 ms	730 B
mantishydra.mantis-awx.com/chunks/fxpccjj8.hydra.js	0.0 ms	653 B
mantishydra.mantis-awx.com/chunks/qyvbrfa0.hydra.js	0.0 ms	645 B
/hit.gif?id=5110&url=https%3A%2F%2Fwww.walesonline.co.uk%...	86400.0 s	1.2 KiB
mantishydra.mantis-awx.com/reach/walesonline/homepage/hydra.js	0.0 ms	412 B
cdn.onesignal.com/sdks/web/v16/OneSignalSDK.page.js	259200.0 s	901 B
sb.scorecardresearch.com/internal-c2/default/cs.js	86400.0 s	377 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
Publisher Logo `div.qc-cmp2-publisher-logo-container > figure > div.logo-container > img`	/@trinitymirrordigital/chameleon-branding/publications/wa...	162.2 KiB	161.0 KiB
Dog dies after suspected snake bite near Welsh beach `div.GroupGrid_group__W6wCG > article.Teaser_teaser__XImzE > div.Teaser_cover-wrapper__VVV7O > img`	/article33818646.ece/ALTERNATES/s810/0_AFRDPW210226Baxter...	107.1 KiB	101.9 KiB
Dead bird of prey found tied to tree in Powys `div.GroupGrid_group__W6wCG > article.Teaser_teaser__XImzE > div.Teaser_cover-wrapper__VVV7O > img`	/article33818887.ece/ALTERNATES/s810/0_EGR_220426_Buzzard...	84.6 KiB	79.4 KiB
WRU reveals truth about finances, the missing £6m and ambitious Zip World plans `div.GroupGrid_group__W6wCG > article.Teaser_teaser__XImzE > div.Teaser_cover-wrapper__VVV7O > img`	/article33811808.ece/ALTERNATES/s810/0_JS396692073jpgcrow...	76.8 KiB	71.6 KiB
Area of Wales where house prices are rocketing three times higher than the rest… `div.GroupGrid_group__W6wCG > article.Teaser_teaser__XImzE > div.Teaser_cover-wrapper__VVV7O > img`	/article33816293.ece/ALTERNATES/s810/0_rbp_mai061223cardi...	69.6 KiB	64.5 KiB
Emerging Welsh talent compared to British Lion as career enters crucial stage `div.GroupGrid_group__W6wCG > article.Teaser_teaser__XImzE > div.Teaser_cover-wrapper__VVV7O > img`	i2-prod.walesonline.co.uk/article33813300.ece/ALTERNATES/s810/0_JS393245503.jpg	46.6 KiB	43.2 KiB
Welsh Varsity 2026 live updates as thousands of students descend on Cardiff `div.GroupGrid_group__W6wCG > article.Teaser_teaser__XImzE > div.Teaser_cover-wrapper__VVV7O > img`	i2-prod.walesonline.co.uk/article33819632.ece/ALTERNATES/s810/0_.jpg	42.2 KiB	39.1 KiB
'I couldn't walk straight and lost my sense of smell', then Tony was told devas… `div.GroupGrid_group__W6wCG > article.Teaser_teaser__XImzE > div.Teaser_cover-wrapper__VVV7O > img`	/article33817579.ece/ALTERNATES/s810/1_LMR_220426_TonyKir...	35.6 KiB	33.0 KiB
Pub that closed weeks ago could be turned into flats `div.GroupGrid_group__W6wCG > article.Teaser_teaser__XImzE > div.Teaser_cover-wrapper__VVV7O > img`	/article33819409.ece/ALTERNATES/s810/1_The-Clive-Arms-Hot...	35.5 KiB	32.9 KiB
Welsh rugby match abandoned after ref incident and Scarlets to be 'different te… `div.GroupGrid_group__W6wCG > article.Teaser_teaser__XImzE > div.Teaser_cover-wrapper__VVV7O > img`	i2-prod.walesonline.co.uk/article33812952.ece/ALTERNATES/s810/0_JS403406245.jpg	34.7 KiB	32.2 KiB
Y11's deal to buy Cardiff officially off as west Wales clubs to sign agreement `div.GroupGrid_group__W6wCG > article.Teaser_teaser__XImzE > div.Teaser_cover-wrapper__VVV7O > img`	i2-prod.walesonline.co.uk/article33283109.ece/ALTERNATES/s810/0_JS391908631.jpg	45.4 KiB	30.5 KiB
Man arrested after town centre foot chase `div.GroupGrid_group__W6wCG > article.Teaser_teaser__XImzE > div.Teaser_cover-wrapper__VVV7O > img`	i2-prod.walesonline.co.uk/article9135800.ece/ALTERNATES/s810/0_JS62288482.jpg	32.7 KiB	30.3 KiB
Welsh club announce big overseas signing and seismic day arrives for WRU `div.GroupGrid_group__W6wCG > article.Teaser_teaser__XImzE > div.Teaser_cover-wrapper__VVV7O > img`	/article33650801.ece/ALTERNATES/s810/0_GettyImages-223909...	32.0 KiB	29.7 KiB
Motorcyclist seriously injured in Barry crash which left road closed for hours `div.GroupGrid_group__W6wCG > article.Teaser_teaser__XImzE > div.Teaser_cover-wrapper__VVV7O > img`	/article33816792.ece/ALTERNATES/s810/1_EGR_220426_BarryRo...	23.2 KiB	21.5 KiB
Scarlets boss calls out 'unacceptable' Wales star in stark public message `div.GroupGrid_group__W6wCG > article.Teaser_teaser__XImzE > div.Teaser_cover-wrapper__VVV7O > img`	/article33811677.ece/ALTERNATES/s810/0_180426-Scarlets-v-...	21.8 KiB	20.2 KiB
PE teacher resigned during investigation into school rugby trip `div.GroupGrid_group__W6wCG > article.Teaser_teaser__XImzE > div.Teaser_cover-wrapper__VVV7O > img`	/article33816282.ece/ALTERNATES/s810/0_BFR_220426_LowriWi...	20.2 KiB	18.7 KiB
Tiny Welsh restaurant saved from closure by Michelin chef compared to 'Cristian… `div.GroupGrid_group__W6wCG > article.Teaser_teaser__XImzE > div.Teaser_cover-wrapper__VVV7O > img`	i2-prod.walesonline.co.uk/article32995821.ece/ALTERNATES/s810/1_gwen.jpg	19.0 KiB	17.6 KiB
Swansea council leader claims Ospreys are safe until the 2030s despite WRU anno… `div.GroupGrid_group__W6wCG > article.Teaser_teaser__XImzE > div.Teaser_cover-wrapper__VVV7O > img`	i2-prod.walesonline.co.uk/article33268962.ece/ALTERNATES/s810/1_JS377644533.jpg	25.6 KiB	17.2 KiB
Price slashed on 'lightweight' Shark cordless vacuum that makes cleaning so easy `div.GroupGrid_group__W6wCG > article.Teaser_teaser__XImzE > div.Teaser_cover-wrapper__VVV7O > img`	i2-prod.walesonline.co.uk/article33817440.ece/ALTERNATES/s810/220427_Shark.jpg	16.7 KiB	15.5 KiB
Abi Tierney vows to carry on and says position is not untenable as she explains… `div.GroupGrid_group__W6wCG > article.Teaser_teaser__XImzE > div.Teaser_cover-wrapper__VVV7O > img`	/article33562346.ece/ALTERNATES/s810/0_CDF_200825_KA_WRU_...	16.3 KiB	15.1 KiB
Major railway disruption after fire breaks out `div.GroupGrid_group__W6wCG > article.Teaser_teaser__XImzE > div.Teaser_cover-wrapper__VVV7O > img`	/article26071215.ece/ALTERNATES/s810/3_Railway-delays.jpg	22.2 KiB	15.0 KiB
Great ways to balance screen time with your family `div.shopwindow > article.Teaser_teaser__XImzE > div.Teaser_cover-wrapper__VVV7O > img`	i2-prod.mirror.co.uk/article36879646.ece/ALTERNATES/s508/2_0D5A6952.jpg	18.1 KiB	14.8 KiB
Judge tells men they're 'causing misery to communities' `div.GroupGrid_group__W6wCG > article.Teaser_teaser__XImzE > div.Teaser_cover-wrapper__VVV7O > img`	i2-prod.walesonline.co.uk/article33816269.ece/ALTERNATES/s810/1_escenic-26.jpg	15.1 KiB	14.0 KiB
Wales international's brutal season ended by surgery and Welsh captain ruled out `div.GroupGrid_group__W6wCG > article.Teaser_teaser__XImzE > div.Teaser_cover-wrapper__VVV7O > img`	/article33820183.ece/ALTERNATES/s810/0_GettyImages-226450...	14.0 KiB	13.0 KiB
Man poured petrol through letterbox and set fire to the wrong house `div.GroupGrid_group__W6wCG > article.Teaser_teaser__XImzE > div.Teaser_cover-wrapper__VVV7O > img`	/article33817161.ece/ALTERNATES/s810/1_PDR_ECH_220426Came...	13.2 KiB	12.2 KiB

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
/nav-web-static/main-7d527e9aab619128ce0f0a829af162c8310e...	1.7 KiB
/nav-web-static/main-7d527e9aab619128ce0f0a829af162c8310e...	2.3 KiB

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

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: 302 ms

URL	Time Spent
walesonline.co.uk/	302 ms
www.walesonline.co.uk/	0.0 ms

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

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: 40 ms 705.1 KiB

URL	Transfer Size	Est Savings
/pagead/managed/js/gpt/m202604160201/pubads_impl.js	187.7 KiB	140.2 KiB
s2-prod.walesonline.co.uk/@trinitymirrordigital/auth-ui/auth-ui.min.js?v=v260318	132.0 KiB	78.8 KiB
www.googletagmanager.com/gtm.js?id=GTM-WL2JKZG	167.5 KiB	70.6 KiB
cmp.inmobi.com/tcfv2/61/cmp2.js?referer=walesonline.co.uk	133.0 KiB	68.6 KiB
cdn.amplitude.com/libs/analytics-browser-gtm-wrapper-2.36.8.min.js.br	79.3 KiB	66.3 KiB
cmp.inmobi.com/tcfv2/61/cmp2ui-en.js	124.9 KiB	60.1 KiB
/nav-web-static/main-7d527e9aab619128ce0f0a829af162c8310e...	79.8 KiB	36.3 KiB
cdn.onesignal.com/sdks/web/v16/OneSignalSDK.page.es6.js?v=160603	41.6 KiB	32.3 KiB
cdn.eu.amplitude.com/libs/analytics-browser-2.25.0-min.js.gz	49.4 KiB	31.8 KiB
cdn.amplitude.com/libs/analytics-browser-gtm-2.36.8-min.js.gz	54.4 KiB	28.2 KiB
/bad-ads-reporting-tool/js/AdVerification/verify-2.0.2.mi...	39.6 KiB	26.5 KiB
/nav-web-static/main-7d527e9aab619128ce0f0a829af162c8310e...	36.1 KiB	24.5 KiB
/nav-web-static/main-7d527e9aab619128ce0f0a829af162c8310e...	57.4 KiB	20.8 KiB
/nav-web-static/main-7d527e9aab619128ce0f0a829af162c8310e...	45.1 KiB	20.2 KiB

Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to minimize main-thread work

Why this matters

Performance issues directly impact user engagement and conversion rates.

Category	Time Spent
Script Evaluation	888 ms
Other	686 ms
Style & Layout	283 ms
Script Parsing & Compilation	159 ms
Rendering	112 ms
Parse HTML & CSS	40 ms
Garbage Collection	34 ms

Minifying CSS files can reduce network payload sizes. Learn how to minify CSS.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 0.0 ms 2.1 KiB

URL	Transfer Size	Est Savings
.App{ display:flex; justify-content:center; box-sizing:border-box; margin:0; … } …	2.5 KiB	2.1 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 13.0 KiB

URL	Transfer Size	Est Savings
/nav-web-static/main-7d527e9aab619128ce0f0a829af162c8310e...	14.0 KiB	13.0 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
/pagead/managed/js/gpt/m202604160201/pubads_impl.js	187.7 KiB
www.googletagmanager.com/gtm.js?id=GTM-WL2JKZG	167.8 KiB
/@trinitymirrordigital/chameleon-branding/publications/wa...	162.8 KiB
/scripts/370edbafa5296ef2074359ed0f0cb50d2775bd2cd6067dc8...	151.6 KiB
cmp.inmobi.com/tcfv2/61/cmp2.js?referer=walesonline.co.uk	133.5 KiB
s2-prod.walesonline.co.uk/@trinitymirrordigital/auth-ui/auth-ui.min.js?v=v260318	132.8 KiB
cmp.inmobi.com/tcfv2/61/cmp2ui-en.js	125.4 KiB
/article33818646.ece/ALTERNATES/s810/0_AFRDPW210226Baxter...	108.0 KiB
/article17668729.ece/ALTERNATES/s810/0_LM_CJA_220517-Gwil...	105.3 KiB
/nav-web-static/main-7d527e9aab619128ce0f0a829af162c8310e...	88.4 KiB

Set an explicit width and height on image elements to reduce layout shifts and improve CLS. Learn how to set image dimensions

Why this matters

Performance issues directly impact user engagement and conversion rates.

	URL
Publisher Logo `div.qc-cmp2-publisher-logo-container > figure > div.logo-container > img`	/@trinitymirrordigital/chameleon-branding/publications/wa...
walesonline `header.Header_header__nYiY_ > span.PremiumButton_premium-button__RMjkb > a.PremiumButton_premium-button__RMjkb > img`	/assets/walesonline/images/premium-subscribe-walesonline.svg
walesonline `div.Heading_heading-primary__pzAWR > div.Heading_premium-article___6NGm > div.PremiumArticleBadge_primary__HhkAN > img.PremiumArticleBadge_premium-badge-image__ceBDv`	www.walesonline.co.uk/assets/walesonline/images/premium-byline-walesonline.svg
walesonline `div.Heading_heading-primary__pzAWR > div.Heading_premium-article___6NGm > div.PremiumArticleBadge_primary__HhkAN > img.PremiumArticleBadge_premium-badge-image__ceBDv`	www.walesonline.co.uk/assets/walesonline/images/premium-byline-walesonline.svg
walesonline `div.Heading_heading-primary__pzAWR > div.Heading_premium-article___6NGm > div.PremiumArticleBadge_primary__HhkAN > img.PremiumArticleBadge_premium-badge-image__ceBDv`	www.walesonline.co.uk/assets/walesonline/images/premium-byline-walesonline.svg
walesonline `div.Heading_heading-primary__pzAWR > div.Heading_premium-article___6NGm > div.PremiumArticleBadge_primary__HhkAN > img.PremiumArticleBadge_premium-badge-image__ceBDv`	www.walesonline.co.uk/assets/walesonline/images/premium-byline-walesonline.svg
walesonline `div.Heading_heading-primary__pzAWR > div.Heading_premium-article___6NGm > div.PremiumArticleBadge_primary__HhkAN > img.PremiumArticleBadge_premium-badge-image__ceBDv`	www.walesonline.co.uk/assets/walesonline/images/premium-byline-walesonline.svg
walesonline `div.Heading_heading-primary__pzAWR > div.Heading_premium-article___6NGm > div.PremiumArticleBadge_primary__HhkAN > img.PremiumArticleBadge_premium-badge-image__ceBDv`	www.walesonline.co.uk/assets/walesonline/images/premium-byline-walesonline.svg
walesonline `article.Teaser_teaser__XImzE > div.OpinionTeaser_content-wrapper__TVVPL > div.PremiumArticleBadge_opinion__e3QeJ > img.PremiumArticleBadge_premium-badge-image__ceBDv`	www.walesonline.co.uk/assets/walesonline/images/premium-byline-walesonline.svg
walesonline `div.Heading_heading-primary__pzAWR > div.Heading_premium-article___6NGm > div.PremiumArticleBadge_primary__HhkAN > img.PremiumArticleBadge_premium-badge-image__ceBDv`	www.walesonline.co.uk/assets/walesonline/images/premium-byline-walesonline.svg
walesonline `div.Heading_heading-primary__pzAWR > div.Heading_premium-article___6NGm > div.PremiumArticleBadge_primary__HhkAN > img.PremiumArticleBadge_premium-badge-image__ceBDv`	www.walesonline.co.uk/assets/walesonline/images/premium-byline-walesonline.svg
walesonline `div.Heading_heading-primary__pzAWR > div.Heading_premium-article___6NGm > div.PremiumArticleBadge_primary__HhkAN > img.PremiumArticleBadge_premium-badge-image__ceBDv`	www.walesonline.co.uk/assets/walesonline/images/premium-byline-walesonline.svg
walesonline `div.Heading_heading-primary__pzAWR > div.Heading_premium-article___6NGm > div.PremiumArticleBadge_primary__HhkAN > img.PremiumArticleBadge_premium-badge-image__ceBDv`	www.walesonline.co.uk/assets/walesonline/images/premium-byline-walesonline.svg

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

●Max Potential First Input Delay 70 ms

●Layout shift culprits

●Optimize DOM size

●Font display

●LCP breakdown

●Modern HTTP

●Optimize viewport for mobile

●Minify JavaScript

●JavaScript execution time 0.7 s

●Avoid long main-thread tasks 4 long tasks found

●Page didn't prevent back/forward cache restoration

●Network Requests

●Network Round Trip Times 40 ms

●Server Backend Latencies 120 ms

●Tasks

●Diagnostics

●Metrics

●Screenshot Thumbnails

●Final Screenshot

●Script Treemap Data

●Resources Summary

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

○INP breakdown

○User Timing marks and measures

○Avoid non-composited animations

○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.

Navigation

Properly ordered headings that do not skip levels convey the semantic structure of the page, making it easier to navigate and understand when using assistive technologies. Learn more about heading order.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Man accused of grooming child has been working for Welsh travel company `div > div.Heading_heading-primary__pzAWR > a.Heading_teaser-link-primary__oUN1B > h3.Heading_headline__lT6QN`

These are opportunities to improve keyboard navigation in your application.

Names and labels

Link text (and alternate text for images, when used as links) that is discernible, unique, and focusable improves the navigation experience for screen reader users. Learn how to make links accessible.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.shopwindow > article.Teaser_teaser__XImzE > footer.Footer_additional-content__QJCbk > a `div.shopwindow > article.Teaser_teaser__XImzE > footer.Footer_additional-content__QJCbk > a`
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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.

○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

●`<html>` element has a `[lang]` attribute

●`<html>` element has a valid value for its `[lang]` attribute

●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

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

●Touch targets have sufficient size and spacing.

●Document has a main landmark.

●Deprecated ARIA roles were not used

●Elements with visible text labels have matching accessible names.

○`[accesskey]` values are unique

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

○ARIA input fields have accessible names

○ARIA `meter` elements have accessible names

○ARIA `progressbar` elements have accessible names

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

○`[role]`s are contained by their required parent element

○Elements with the `role=text` attribute do not have focusable descendents.

○ARIA toggle fields have accessible names

○ARIA `tooltip` elements have accessible names

○ARIA `treeitem` elements have accessible names

○The page contains a heading, skip link, or landmark region

○`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.

○Definition list items are wrapped in `<dl>` elements

○ARIA IDs are unique

○No form fields have multiple labels

○`<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

○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>`.

○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

User Experience

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

	URL	Aspect Ratio (Displayed)	Aspect Ratio (Actual)
article.Teaser_teaser__XImzE > div.Teaser_cover-wrapper__VVV7O > picture > img `article.Teaser_teaser__XImzE > div.Teaser_cover-wrapper__VVV7O > picture > img`	/article33820479.ece/ALTERNATES/s950/0_250326-joel-colier...	950 x 430 (2.21)	950 x 422 (2.25)
article.Teaser_teaser__XImzE > div.Teaser_cover-wrapper__VVV7O > picture > img `article.Teaser_teaser__XImzE > div.Teaser_cover-wrapper__VVV7O > picture > img`	/article33768665.ece/ALTERNATES/s950/1_GettyImages-117297...	950 x 430 (2.21)	950 x 422 (2.25)
article.Teaser_teaser__XImzE > div.Teaser_cover-wrapper__VVV7O > picture > img `article.Teaser_teaser__XImzE > div.Teaser_cover-wrapper__VVV7O > picture > img`	/article33820736.ece/ALTERNATES/s950/0_CDF_220426_CF_Card...	950 x 429 (2.21)	950 x 421 (2.26)

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
Specifying overflow: visible on img, video and canvas tags may cause them to produce visual content outside of the element bounds. See https://github.com/WICG/shared-element-transitions/blob/main/debugging_overflow_on_images.md.	cmp.inmobi.com/tcfv2/61/cmp2ui-en.js line 1, col 449154

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
/nav-web-static/main-7d527e9aab619128ce0f0a829af162c8310e...	`Failed to load resource: the server responded with a status of 403 ()`

●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

●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

●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`