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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.

34

Performance

Insights

Remove large, duplicate JavaScript modules from bundles to reduce unnecessary bytes consumed by network activity.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Polyfills and transforms enable older browsers to use new JavaScript features. However, many aren't necessary for modern browsers. Consider modifying your JavaScript build process to not transpile Baseline features, unless you know you must support older browsers. Learn why most sites can deploy ES6+ code without transpiling

Why this matters

Performance issues directly impact user engagement and conversion rates.

3rd party code can significantly impact load performance. Reduce and defer loading of 3rd party code to prioritize your page's content.

Why this matters

Performance issues directly impact user engagement and conversion rates.

A long cache lifetime can speed up repeat visits to your page. Learn more about caching.

Why this matters

Performance issues directly impact user engagement and conversion rates.

RequestCache TTLTransfer Size
cdn.permutive.com/88a66e5c-8fe8-48af-9c6c-3ec3f4983aad-web.js900.0 s250.9 KiB
ads.the-sun.com/prebid.suncom.min.js?ver=1.0.0900.0 s203.4 KiB
/scripts/3da4c90527b29038dd113ce27c238172452234d08bf08d75...3600.0 s170.9 KiB
www.the-sun.com/assets/optimizely/19638580519.js?ver=1.0.0120.0 s93.6 KiB
cmp.cdn.the-sun.com/Notice.8f529.js3600.0 s91.3 KiB
client.aps.amazon-adsystem.com/publisher.js3600.0 s82.6 KiB
ads.the-sun.com/ads.suncom.min.js?ver=1.0.0900.0 s67.2 KiB
secure.widget.cloud.opta.net/v3/v3.opta-widgets.js?ver=1.0.086400.0 s149.3 KiB
secure.widget.cloud.opta.net/v3/components/generic.all.js?v=3.261.186400.0 s86.7 KiB
cmp.cdn.the-sun.com/unified/wrapperMessagingWithoutDetection.js3600.0 s42.0 KiB
ptr.the-sun.com/now.js600.0 s34.1 KiB
tags.tiqcdn.com/utag/newsinternational/thesun.com.web.2019/prod/utag.js300.0 s24.0 KiB
/_static/??-eJylzEEKgCAQRuELZZOLkhbRXawfSmyUHBE6fbgI2karB...30.0 s21.0 KiB
secure.widget.cloud.opta.net/v3/css/v3.football.opta-widgets.css?ver=1.0.086400.0 s52.0 KiB
/_static/??-eJytj80KwjAMgF/Iru4whwfxWdI2s539o0kRfXonHnYQ1...30.0 s20.1 KiB
nid.the-sun.com/prod/sp/nid_sp.js3600.0 s23.3 KiB
secure.widget.cloud.opta.net/v3/v3.app.opta-widgets.js86400.0 s41.6 KiB
/utag/newsinternational/thesun.com.web.2019/prod/utag.84....300.0 s9.2 KiB
/utag/newsinternational/thesun.com.web.2019/prod/utag.62....300.0 s9.1 KiB
cdn.onesignal.com/sdks/web/v16/OneSignalSDK.page.es6.js?v=160603259200.0 s42.1 KiB
/utag/newsinternational/thesun.com.web.2019/prod/utag.74....300.0 s7.4 KiB
/_static/??-eJx1jsEOgkAMRH/IsnJA4sH4KaYsDWxcyoZ2Ef7eXcVww...30.0 s5.5 KiB
cmp.cdn.the-sun.com/Notice.30929.css3600.0 s6.7 KiB
sb.scorecardresearch.com/internal-cs/default/beacon-and.js86400.0 s7.8 KiB
uk-script.dotmetrics.net/Scripts/ncs-script.js?v=3620.0 ms2.9 KiB
/utag/newsinternational/thesun.com.web.2019/prod/utag.85....300.0 s3.0 KiB
/subscriptions/v3_6b7abd03b9bef15d0461b05b0cc5d8a4.json14400.0 s3.6 KiB
cdn.brandmetrics.com/tag/3507d3a478cd4f59b15eb40434141032/thesuncom.js3600.0 s3.0 KiB
config.aps.amazon-adsystem.com/configs/33603600.0 s2.7 KiB
api.onesignal.com/sync/37ae71f8-215a-467a-95b6-7c352ebcc3b7/web?callback=__jp03600.0 s2.5 KiB
cmp.cdn.the-sun.com/polyfills.01516.js3600.0 s2.3 KiB
/utag/newsinternational/thesun.com.web.2019/prod/utag.104...300.0 s1.8 KiB
/utag/newsinternational/thesun.com.web.2019/prod/utag.100...300.0 s1.7 KiB
/utag/newsinternational/thesun.com.web.2019/prod/utag.101...300.0 s1.5 KiB
/utag/newsinternational/thesun.com.web.2019/prod/utag.93....300.0 s1.3 KiB
players.brightcove.net/videojs-pip/1/videojs-pip.css?ver=2.8.6900.0 s1.3 KiB
applets.ebxcdn.com/ebx.js7200.0 s1.0 KiB
/hit.gif?id=5944&url=https%3A%2F%2Fwww.the-sun.com%2F&dom...86400.0 s1.2 KiB
secure.widget.cloud.opta.net/v3/chunks/dayjslocale_en-gb-js.js86400.0 s1.0 KiB
/utag/tiqapp/utag.v.js?a=newsinternational/thesun.com.web...300.0 s433 B
secure.widget.cloud.opta.net/v3/bin/subscriptions_6.js?v=3.261.186400.0 s923 B
cdn.onesignal.com/sdks/web/v16/OneSignalSDK.page.js259200.0 s899 B

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:node label:Element subItemsHeading:map[key:extra] valueType:node] map[granularity:0.001 key:score label:Layout shift score subItemsHeading:map[key:cause valueType:text] valueType:numeric]]
items: [map[node:map[type:text value:Total] score:0.11024899999999999] map[node:map[boundingRect:map[bottom:1066 height:425 left:16 right:396 top:641 width:380] lhId:page-1-DIV nodeLabel:UNFATHOMABLE SADNESS Child killed by Duke basketball legend's grandson in 'DW… path:1,HTML,1,BODY,5,DIV,0,MAIN,0,DIV,0,DIV,0,DIV,0,DIV,1,DIV selector:div.layout > div.layout__grid > div.layout__item > div.module snippet:<div class="module module--20-small-single"> type:node] score:0.102571] map[node:map[boundingRect:map[bottom:569 height:112 left:16 right:396 top:457 width:380] lhId:page-7-H3 nodeLabel:Trump extends Iran ceasefire after Pakistan talks collapse just hours before de… path:1,HTML,1,BODY,5,DIV,0,MAIN,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,1,DIV,0,A,2,H3 selector:div.story__hero-container > div.story__copy-container > a > h3.story__headline snippet:<h3 class="story__headline"> type:node] score:0.006973] map[node:map[boundingRect:map[bottom:866 height:82 left:167 right:358 top:784 width:191] lhId:page-4-H3 nodeLabel:Over 8k cartons of 'contaminated' fruit recalled over deadly illness fears path:1,HTML,1,BODY,5,DIV,0,MAIN,0,DIV,0,DIV,0,DIV,0,DIV,1,DIV,0,DIV,0,DIV,1,DIV,0,DIV,0,DIV,1,DIV,0,A,1,H3 selector:div.story > div.story__copy-container > a > h3.story__headline snippet:<h3 class="story__headline"> type:node] score:0.00067] map[node:map[boundingRect:map[bottom:605 height:24 left:297 right:396 top:581 width:99] lhId:page-3-A nodeLabel:Comments path:1,HTML,1,BODY,5,DIV,0,MAIN,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,1,DIV,1,DIV,2,A selector:div.story__hero-container > div.story__copy-container > div.story__data > a.story__data-meta snippet:<a href="https://www.the-sun.com/news/16255135/trump-expects-bombing-jd-vance-pakis…" class="story__data-meta story__comments"> type:node] score:3.5e-05]]

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:104.404 source:map[type:text value:[unattributed]]] map[reflowTime:1.111 source:map[column:22 line:1825 type:source-location url:https://www.the-sun.com/ urlProvider:network]] map[reflowTime:17.042 source:map[column:326 line:53 type:source-location url:https://tags.tiqcdn.com/utag/newsinternational/thesun.com.web.2019/prod/utag.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

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
Collage of a blurred image of many people walking past traffic cones and a man … div.story > div.story__image-container > a > img.attachment-thesun-landscape-small
/wp-content/uploads/sites/6/2026/04/ES_MULLIN_COMP.jpg?re...13.0 KiB4.5 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

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: 5.0 s
URLTime Spent
the-sun.com/907 ms
www.the-sun.com/4.1 s
www.the-sun.com/0.0 ms

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
UNFATHOMABLE SADNESS Child killed by Duke basketball legend's grandson in 'DW… div.layout > div.layout__grid > div.layout__item > div.module
0.103
Trump extends Iran ceasefire after Pakistan talks collapse just hours before de… div.story__hero-container > div.story__copy-container > a > h3.story__headline
0.007
Over 8k cartons of 'contaminated' fruit recalled over deadly illness fears div.story > div.story__copy-container > a > h3.story__headline
0.001
Comments div.story__hero-container > div.story__copy-container > div.story__data > a.story__data-meta
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

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: 450 ms 51.7 KiB
URLTransfer SizeEst Savings
secure.widget.cloud.opta.net/v3/css/v3.football.opta-widgets.css?ver=1.0.051.7 KiB51.7 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.

URLTotal CPU TimeScript EvaluationScript Parse
www.the-sun.com/2.0 s503 ms38 ms
Unattributable868 ms165 ms0.0 ms
cmp.cdn.the-sun.com/Notice.8f529.js700 ms511 ms27 ms
applets.ebxcdn.com/ebx.js400 ms395 ms0.4 ms
www.googletagmanager.com/gtag/js?id=G-CZTT0R8Y5S&cx=c&gtm=4e64h1393 ms314 ms45 ms
www.googletagmanager.com/gtag/js?id=G-K2ECMCJBFQ328 ms292 ms34 ms
p.toadmash.net/1776809988/07cd4c1a-4e46-4a07-bfba-59c7dc7a3c3d.js285 ms257 ms12 ms
cmp.cdn.the-sun.com/unified/wrapperMessagingWithoutDetection.js267 ms145 ms14 ms
www.googletagmanager.com/gtag/js?id=G-SQ24F7Q7YW&cx=c&gtm=4e64h1265 ms185 ms33 ms
blob:https://www.the-sun.com/510c09e2-c09b-476c-9453-08993f3e7441205 ms190 ms9.6 ms
js-agent.newrelic.com/nr-spa-1.309.0.min.js204 ms158 ms17 ms
ads.the-sun.com/prebid.suncom.min.js?ver=1.0.0171 ms118 ms52 ms
secure.widget.cloud.opta.net/v3/components/generic.all.js?v=3.261.1140 ms80 ms28 ms
/scripts/3da4c90527b29038dd113ce27c238172452234d08bf08d75...137 ms74 ms55 ms
tags.tiqcdn.com/utag/newsinternational/thesun.com.web.2019/prod/utag.js137 ms61 ms6.9 ms
ads.the-sun.com/ads.suncom.min.js?ver=1.0.0131 ms113 ms16 ms
secure.widget.cloud.opta.net/v3/v3.opta-widgets.js?ver=1.0.0123 ms79 ms42 ms
cmp.cdn.the-sun.com/unified/4.40.1/usnat.f12613136193900e32e2.bundle.js114 ms81 ms32 ms
cdn.onesignal.com/sdks/web/v16/OneSignalSDK.page.es6.js?v=160603106 ms76 ms11 ms
www.the-sun.com/assets/optimizely/19638580519.js?ver=1.0.094 ms71 ms23 ms
cdn.parsely.com/keys/the-sun.com/p.js94 ms82 ms5.7 ms
/_static/??-eJytj80KwjAMgF/Iru4whwfxWdI2s539o0kRfXonHnYQ1...91 ms39 ms6.2 ms
/d/mcl.js?tk=8qvoxSGlKQ2SepT9sBpISVeGCxgvg4tPlPbWaVVvsBPA...77 ms65 ms2.5 ms
www.googletagmanager.com/gtag/js?id=DC-1405240577 ms48 ms28 ms
secure.widget.cloud.opta.net/v3/v3.app.opta-widgets.js60 ms46 ms12 ms
www.the-sun.com/wp-includes/js/dist/vendor/react.min.js?ver=18.3.1.159 ms38 ms1.5 ms
www.googletagmanager.com/gtag/js?id=G-SQ24F7Q7YW58 ms26 ms32 ms
cmp.cdn.the-sun.com/unified/4.40.1/gdpr-tcf.27718c8cb9d29947d2c1.bundle.js58 ms39 ms18 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.

CategoryTime Spent
Script Evaluation4.5 s
Style & Layout1.3 s
Other1.1 s
Script Parsing & Compilation674 ms
Parse HTML & CSS329 ms
Rendering127 ms
Garbage Collection94 ms

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 0.0 ms 24.6 KiB
URLTransfer SizeEst Savings
secure.widget.cloud.opta.net/v3/v3.opta-widgets.js?ver=1.0.0149.0 KiB24.6 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: 0.0 ms 944.6 KiB
URLTransfer SizeEst Savings
ads.the-sun.com/prebid.suncom.min.js?ver=1.0.0203.0 KiB171.1 KiB
www.googletagmanager.com/gtag/js?id=G-SQ24F7Q7YW146.8 KiB103.8 KiB
secure.widget.cloud.opta.net/v3/v3.opta-widgets.js?ver=1.0.0148.9 KiB101.5 KiB
www.googletagmanager.com/gtag/js?id=G-CZTT0R8Y5S&cx=c&gtm=4e64h1176.2 KiB69.3 KiB
www.the-sun.com/assets/optimizely/19638580519.js?ver=1.0.093.0 KiB66.5 KiB
www.googletagmanager.com/gtag/js?id=G-SQ24F7Q7YW&cx=c&gtm=4e64h1147.0 KiB62.4 KiB
cmp.cdn.the-sun.com/Notice.8f529.js90.9 KiB61.5 KiB
www.googletagmanager.com/gtag/js?id=DC-14052405129.4 KiB61.5 KiB
www.googletagmanager.com/gtag/js?id=G-K2ECMCJBFQ144.6 KiB57.4 KiB
secure.widget.cloud.opta.net/v3/components/generic.all.js?v=3.261.186.4 KiB42.4 KiB
secure.widget.cloud.opta.net/v3/v3.app.opta-widgets.js41.3 KiB34.9 KiB
blob:https://www.the-sun.com/510c09e2-c09b-476c-9453-08993f3e744188.1 KiB32.6 KiB
ads.the-sun.com/ads.suncom.min.js?ver=1.0.066.7 KiB31.5 KiB
cdn.onesignal.com/sdks/web/v16/OneSignalSDK.page.es6.js?v=16060341.6 KiB27.5 KiB
www.the-sun.com/wp-includes/js/dist/vendor/react-dom.min.js?ver=18.3.1.141.3 KiB20.6 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.

URLTransfer Size
cdn.permutive.com/88a66e5c-8fe8-48af-9c6c-3ec3f4983aad-web.js250.9 KiB
ads.the-sun.com/prebid.suncom.min.js?ver=1.0.0203.4 KiB
www.googletagmanager.com/gtag/js?id=G-CZTT0R8Y5S&cx=c&gtm=4e64h1176.2 KiB
/scripts/3da4c90527b29038dd113ce27c238172452234d08bf08d75...170.9 KiB
secure.widget.cloud.opta.net/v3/v3.opta-widgets.js?ver=1.0.0149.3 KiB
www.googletagmanager.com/gtag/js?id=G-SQ24F7Q7YW&cx=c&gtm=4e64h1147.0 KiB
www.googletagmanager.com/gtag/js?id=G-SQ24F7Q7YW146.9 KiB
www.googletagmanager.com/gtag/js?id=G-K2ECMCJBFQ144.9 KiB
www.googletagmanager.com/gtag/js?id=DC-14052405129.5 KiB
www.the-sun.com/117.4 KiB

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

●Document request latency
●Optimize DOM size
●Font display
●LCP breakdown
●LCP request discovery
●Modern HTTP
●Render blocking requests
●Optimize viewport for mobile
●Minify CSS
●User Timing marks and measures 20 user timings
●Avoid long main-thread tasks 20 long tasks found
●Image elements have explicit `width` and `height`
●Page didn't prevent back/forward cache restoration
●Network Requests
●Network Round Trip Times 50 ms
●Server Backend Latencies 160 ms
●Tasks
●Diagnostics
●Metrics
●Screenshot Thumbnails
●Final Screenshot
●Script Treemap Data
●Resources Summary
●Initial server response time was short Root document took 240 ms
○INP breakdown
○Avoid non-composited animations
97

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.

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
div.story__copy-container > div.story__data > a.story__data-meta > span div.story__copy-container > div.story__data > a.story__data-meta > span
div.story > div.story__copy-container > a > p.story__kicker div.story > div.story__copy-container > a > p.story__kicker
div.layout__inner > div.story > div.story__data > a.story__data-item div.layout__inner > div.story > div.story__data > a.story__data-item
Advertisement div.layout__item > div.module > div.advert-wrapper > span.advert-wrapper__text
div.story__copy-container > div.story__data > a.story__data-meta > span div.story__copy-container > div.story__data > a.story__data-meta > span
Advertisement div.layout__item > div.module > div.advert-wrapper > span.advert-wrapper__text
div.story__hero-container > div.story__copy-container > a > span.story__slug div.story__hero-container > div.story__copy-container > a > span.story__slug
Advertisement div.layout__item > div.module > div.advert-wrapper > span.advert-wrapper__text
div.layout__inner > div.story > div.story__image-container > span.story__slug div.layout__inner > div.story > div.story__image-container > span.story__slug
div.story > div.story__copy-container > a > p.story__kicker div.story > div.story__copy-container > a > p.story__kicker
div.layout__inner > div.story > div.story__data > a.story__data-item div.layout__inner > div.story > div.story__data > a.story__data-item
div.story > div.story__copy-container > a > p.story__kicker div.story > div.story__copy-container > a > p.story__kicker
div.layout__inner > div.story > div.story__data > a.story__data-item div.layout__inner > div.story > div.story__data > a.story__data-item
div.story > div.story__copy-container > a > p.story__kicker div.story > div.story__copy-container > a > p.story__kicker
div.layout__inner > div.story > div.story__data > a.story__data-item div.layout__inner > div.story > div.story__data > a.story__data-item
Advertisement div.layout__item > div.module > div.advert-wrapper > span.advert-wrapper__text
div.layout__inner > div.story > div.story__data > a.story__data-item div.layout__inner > div.story > div.story__data > a.story__data-item
div.story > div.story__copy-container > a > p.story__kicker div.story > div.story__copy-container > a > p.story__kicker
div.layout__inner > div.story > div.story__data > a.story__data-item div.layout__inner > div.story > div.story__data > a.story__data-item
Advertisement div.layout__item > div.module > div.advert-wrapper > span.advert-wrapper__text
div.story > div.story__copy-container > a > p.story__kicker div.story > div.story__copy-container > a > p.story__kicker
div.layout__inner > div.story > div.story__data > a.story__data-item div.layout__inner > div.story > div.story__data > a.story__data-item
Advertisement div.layout__item > div.module > div.advert-wrapper > span.advert-wrapper__text

These are opportunities to improve the legibility of your content.

○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
●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
●Identical links have the same purpose.
○`[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>`.
○All heading elements contain content.
○Uses ARIA roles only on compatible elements
○Image elements do not have `[alt]` attributes that are redundant text.
○Elements with visible text labels have matching accessible names.
○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.
73

Best Practices

Trust and Safety

Users are mistrustful of or confused by sites that request to send notifications without context. Consider tying the request to user gestures instead. Learn more about responsibly getting permission for notifications.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Source
cdn.onesignal.com/sdks/web/v16/OneSignalSDK.page.es6.js?v=160603

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
Topics
ads.the-sun.com/prebid.suncom.min.js?ver=1.0.0 line 10, col 409357

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.

SourceDescription
www.the-sun.com/ line 17, col 9141
Error: Permission blocked at https://cdn.onesignal.com/sdks/web/v16/OneSignalSDK.page.es6.js?v=160603:1:4413 at https://cdn.onesignal.com/sdks/web/v16/OneSignalSDK.page.es6.js?v=160603:1:139350
www.the-sun.com/ line 1865, col 0
ReferenceError: wp is not defined at https://www.the-sun.com/:1866:1
www.the-sun.com/ line 1879, col 1
ReferenceError: wp is not defined at https://www.the-sun.com/:1880:2 at https://www.the-sun.com/:1882:4

Source maps translate minified code to the original source code. This helps developers debug in production. In addition, Lighthouse is able to provide further insights. Consider deploying source maps to take advantage of these benefits. Learn more about source maps.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLMap URL
ads.the-sun.com/prebid.suncom.min.js?ver=1.0.0
secure.widget.cloud.opta.net/v3/v3.opta-widgets.js?ver=1.0.0secure.widget.cloud.opta.net/v3/sourcemap/v3.opta-widgets.js.map
secure.widget.cloud.opta.net/v3/v3.app.opta-widgets.jssecure.widget.cloud.opta.net/v3/sourcemap/v3.app.opta-widgets.js.map
secure.widget.cloud.opta.net/v3/components/generic.all.js?v=3.261.1secure.widget.cloud.opta.net/v3/sourcemap/components/generic.all.js.map
secure.widget.cloud.opta.net/v3/chunks/dayjslocale_en-gb-js.jssecure.widget.cloud.opta.net/v3/sourcemap/chunks/dayjslocale_en-gb-js.js.map
secure.widget.cloud.opta.net/v3/bin/subscriptions_6.js?v=3.261.1secure.widget.cloud.opta.net/v3/sourcemap/bin/subscriptions_6.js.map
nid.the-sun.com/prod/sp/nid_sp.jsnid.the-sun.com/prod/sp/sp.js.map
uk-script.dotmetrics.net/Scripts/ncs-script.js?v=362uk-script.dotmetrics.net/Scripts/ncs-script.js.map
cdn.onesignal.com/sdks/web/v16/OneSignalSDK.page.jscdn.onesignal.com/sdks/web/v16/OneSignalSDK.page.js.map
cdn.onesignal.com/sdks/web/v16/OneSignalSDK.page.es6.js?v=160603cdn.onesignal.com/sdks/web/v16/OneSignalSDK.page.es6.js.map
●Uses HTTPS
●Avoids third-party cookies
●Allows users to paste into input fields
●Avoids requesting the geolocation permission on page load
●Displays images with correct aspect ratio
●Serves images with appropriate resolution
●Page has the HTML doctype
●Properly defines charset
●No issues in the `Issues` panel in Chrome Devtools
●Ensure CSP is effective against XSS attacks
●Ensure proper origin isolation with COOP
●Mitigate DOM-based XSS with Trusted Types
●Detected JavaScript libraries
○Redirects HTTP traffic to HTTPS
○Use a strong HSTS policy
○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`

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