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· 0 checks — Desktop Lighthouse audit -- Performance, Accessibility, Best Practices, and SEO category breakdown.
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Detailed Report

Audit breakdown by category with detailed findings.

47

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 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:79.333 source:map[column:8954 line:18 type:source-location url:https://www.thesun.co.uk/ 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:137.953 source:map[type:text value:[unattributed]]] map[reflowTime:36.098 source:map[column:81 line:2021 type:source-location url:https://www.thesun.co.uk/ urlProvider:network]] map[reflowTime:14.741 source:map[column:48586 line:18 type:source-location url:https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604200101/pubads_impl.js?cb=31097964 urlProvider:network]] map[reflowTime:39.476 source:map[column:81604 line:18 type:source-location url:https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604200101/pubads_impl.js?cb=31097964 urlProvider:network]] map[reflowTime:3.723 source:map[column:48707 line:18 type:source-location url:https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604200101/pubads_impl.js?cb=31097964 urlProvider:network]] map[reflowTime:28.312 source:map[column:55329 line:1 type:source-location url:https://sdk.mrf.io/statics/marfeel-sdk.js?id=4815 urlProvider:network]] map[reflowTime:53.307 source:map[column:56601 line:1 type:source-location url:https://sdk.mrf.io/statics/marfeel-sdk.js?id=4815 urlProvider:network]] map[reflowTime:0.373 source:map[column:102565 line:18 type:source-location url:https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604200101/pubads_impl.js?cb=31097964 urlProvider:network]] map[reflowTime:1.414 source:map[column:241859 line:18 type:source-location url:https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604200101/pubads_impl.js?cb=31097964 urlProvider:network]] map[reflowTime:29.116 source:map[column:237252 line:18 type:source-location url:https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604200101/pubads_impl.js?cb=31097964 urlProvider:network]] map[reflowTime:0.216 source:map[column:102 line:68 type:source-location url:https://tags.tiqcdn.com/utag/newsinternational/thesun.web.2017/prod/utag.99.js?utv=ut4.51.202604130938 urlProvider:network]] map[reflowTime:0.153 source:map[column:143578 line:18 type:source-location url:https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604200101/pubads_impl.js?cb=31097964 urlProvider:network]] map[reflowTime:17.368 source:map[column:38273 line:1 type:source-location url:https://sdk.mrf.io/statics/marfeel-sdk.js?id=4815 urlProvider:network]] map[reflowTime:9.343 source:map[column:5949 line:6 type:source-location url:https://www.thesun.co.uk/_static/??-eJytj80KwjAMgF/Iru4whwfxWdI2s539o0kRfXonHnYQ1LGdAh98XxJ5y0KnyBhZssWAJC88SO3di6jqvJHjxHxS4AUQIVOjajQem5F28j/dIhgsYkiJsSzXH5jtD20aVOOH+cZiwf7vIeWTvpLQlTiFNSHGkD0wkiALBc2ULMAuxTVRiODv7DRt9/Cc3OLAlBlm/xxObd8f+u7Y7rvxCU+M9KU= urlProvider:network]] map[reflowTime:69.99 source:map[column:6123 line:6 type:source-location url:https://www.thesun.co.uk/_static/??-eJytj80KwjAMgF/Iru4whwfxWdI2s539o0kRfXonHnYQ1LGdAh98XxJ5y0KnyBhZssWAJC88SO3di6jqvJHjxHxS4AUQIVOjajQem5F28j/dIhgsYkiJsSzXH5jtD20aVOOH+cZiwf7vIeWTvpLQlTiFNSHGkD0wkiALBc2ULMAuxTVRiODv7DRt9/Cc3OLAlBlm/xxObd8f+u7Y7rvxCU+M9KU= urlProvider:network]]]

Reducing the download time of images can improve the perceived load time of the page and LCP. Learn more about optimizing image size

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLResource SizeEst Savings
Inside Joe Wicks’ desperate plan to stay relevant & Page 3 model wife’s key rol… div.story__hero-container > div.story__image-container > a > img.attachment-large
/wp-content/uploads/2026/04/TM-21-04-Joe-Wicks-v1_HERO-1....127.4 KiB66.6 KiB
Kate hugs tearful hero who caught gun-toting crooks as Royal Family gather to m… div.story__hero-container > div.story__image-container > a > img.attachment-large
/wp-content/uploads/2026/04/dk-21-04-kate-hugs_HERO.jpg?q...86.7 KiB45.3 KiB
Royals div.story__hero-container > div.story__copy-container > div.story__data > a.story__data-item
s0.2mdn.net/sadbundle/11332753327299715925/RCI_728x90_bkg2.jpg38.4 KiB28.8 KiB
LATEST div.story__hero-container > div.story__copy-container > a > span.story__slug
s0.2mdn.net/sadbundle/11332753327299715925/RCI_728x90_bkg3.jpg32.4 KiB24.3 KiB
Collage of a man before and after weight loss, with a smaller inset photo of hi… div.story > div.story__image-container > a > img.attachment-thesun-landscape-small
/wp-content/uploads/2026/04/RW-20-04-Weight-loss_COMP_41d...23.7 KiB21.3 KiB
PURPLE REIGN div.story__hero-container > div.story__copy-container > a > p.story__kicker
s0.2mdn.net/sadbundle/11332753327299715925/RCI_728x90_bkg1.jpg23.4 KiB17.6 KiB
div.story > div.story__hero-container > div.story__image-container > ::after div.story > div.story__hero-container > div.story__image-container > ::after
s0.2mdn.net/sadbundle/11332753327299715925/RCI_728x90_bkup.jpg26.2 KiB15.5 KiB
Sun Club div.site-header__right > div.site-header__sun-club > a.site-header__sun-club-link > span
s0.2mdn.net/sadbundle/11332753327299715925/RCI_728x90_border.png13.4 KiB10.0 KiB

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

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.

URLTransfer SizeDuration
experiments.parsely.com/vip-experiments.js?apiKey=thesun.co.uk&ver=3.22.18.9 KiB203 ms

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.thesun.co.uk/prebid.sun.min.js?ver=1.0.0900.0 s203.4 KiB
/scripts/ee8bf0fbcf04ca7e8abc933407f3310bf64c71d2a58f6654...3600.0 s176.6 KiB
www.thesun.co.uk/assets/optimizely/5492586870210560.js?ver=1.0.0120.0 s101.0 KiB
connect.facebook.net/en_US/fbevents.js1200.0 s96.6 KiB
client.aps.amazon-adsystem.com/publisher.js3600.0 s82.5 KiB
ads.thesun.co.uk/ads.sun.min.js?ver=1.0.0900.0 s69.0 KiB
secure.widget.cloud.opta.net/v3/v3.opta-widgets.js?ver=1.0.086400.0 s149.3 KiB
/pagead/managed/js/activeview/current/ufs_web_display.js3600.0 s73.1 KiB
sdk.mrf.io/statics/marfeel-sdk.js?id=48151800.0 s59.7 KiB
ak.sail-horizon.com/spm/spm.v1.min.js600.0 s48.1 KiB
/signals/config/282877925815424?v=2.9.303&r=stable&domain...1200.0 s47.0 KiB
secure.widget.cloud.opta.net/v3/components/generic.all.js?v=3.261.186400.0 s86.7 KiB
cmp.cdn.thesun.co.uk/unified/wrapperMessagingWithoutDetection.js3600.0 s42.0 KiB
ptr.thesun.co.uk/now.js600.0 s34.1 KiB
uk-script.dotmetrics.net/Scripts/script.js?v=3620.0 ms28.4 KiB
cdn.id5-sync.com/api/1.0/esp.js3600.0 s34.7 KiB
cdn.id5-sync.com/api/1.0/id5-api.js3600.0 s34.3 KiB
tags.tiqcdn.com/utag/newsinternational/thesun.web.2017/prod/utag.js300.0 s26.4 KiB
s0.2mdn.net/879366/html_inpage_rendering_lib_200_287.js86400.0 s59.8 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
sdk.mrf.io/statics/47bd3e88b6bda15c34ce.js3600.0 s24.4 KiB
secure.cdn.fastclick.net/js/pubcid/latest/pubcid.min.js900.0 s21.7 KiB
www.redditstatic.com/ads/pixel.js60.0 s19.0 KiB
nid.thesun.co.uk/prod/sp/nid_sp.js3600.0 s23.3 KiB
secure.widget.cloud.opta.net/v3/v3.app.opta-widgets.js86400.0 s41.6 KiB
s0.2mdn.net/879366/Enabler_01_262.js86400.0 s41.2 KiB
/signals/config/2133888756862170?v=2.9.303&r=stable&domai...1200.0 s16.5 KiB
/scripts/bundle/65568.js?sid=01463a73-e7dc-4158-b5f3-5015...3600.0 s17.4 KiB
/utag/newsinternational/thesun.web.2017/prod/utag.156.js?...300.0 s13.1 KiB
ep2.adtrafficquality.google/sodar/VFc2VJAc.js3000.0 s14.4 KiB
/utag/newsinternational/thesun.web.2017/prod/utag.157.js?...300.0 s12.4 KiB
/utag/newsinternational/thesun.web.2017/prod/utag.115.js?...300.0 s10.2 KiB
/utag/newsinternational/thesun.web.2017/prod/utag.78.js?u...300.0 s10.0 KiB
experiments.parsely.com/vip-experiments.js?apiKey=thesun.co.uk&ver=3.22.130.0 s8.9 KiB
cdn.onesignal.com/sdks/web/v16/OneSignalSDK.page.es6.js?v=160603259200.0 s42.0 KiB
pixel.byspotify.com/ping.min.js3600.0 s10.3 KiB
/utag/newsinternational/thesun.web.2017/prod/utag.99.js?u...300.0 s8.3 KiB
connectid.analytics.yahoo.com/connectId-gpt.js3600.0 s9.0 KiB
/utag/newsinternational/thesun.web.2017/prod/utag.160.js?...300.0 s6.9 KiB
/utag/newsinternational/thesun.web.2017/prod/utag.136.js?...300.0 s6.5 KiB
static.criteo.net/js/ld/publishertag.ids.js86400.0 s14.8 KiB
/_static/??-eJx1jsEOgkAMRH/IsnJA4sH4KaYsDWxcyoZ2Ef7eXcVww...30.0 s5.5 KiB
tags.crwdcntrl.net/lt/c/16576/sync.min.js86400.0 s13.1 KiB
tags.crwdcntrl.net/lt/c/16589/sync.min.js86400.0 s13.1 KiB
/utag/newsinternational/thesun.web.2017/prod/utag.143.js?...300.0 s4.9 KiB
/utag/newsinternational/thesun.web.2017/prod/utag.112.js?...300.0 s4.7 KiB
/SIE/?Q_ZID=ZN_8HYvt569ax2JKmh&Q_VERSION=0&Q_LOC=https%3A...3600.0 s4.6 KiB
/dxjsmodule/12.1a2b7192fd54e87d3971.chunk.js?Q_CLIENTVERS...604800.0 s35.9 KiB
a.amxrtb.com/js/cframe.js#gdpr=0&gdpr_consent=&cc=SG14400.0 s5.1 KiB
sdk.mrf.io/statics/compass-multimedia-sdk.js?version=22603600.0 s4.3 KiB
invstatic101.creativecdn.com/encrypted-signals/encrypted-tag-g.js0.0 ms2.9 KiB
cdn.brandmetrics.com/tag/3507d3a478cd4f59b15eb40434141032/thesun.js3600.0 s3.6 KiB
/utag/newsinternational/thesun.web.2017/prod/utag.68.js?u...300.0 s2.9 KiB
sb.scorecardresearch.com/internal-cs/default/beacon.js86400.0 s6.7 KiB
/subscriptions/v3_6b7abd03b9bef15d0461b05b0cc5d8a4.json14400.0 s3.7 KiB
config.aps.amazon-adsystem.com/configs/33603600.0 s2.7 KiB
api.onesignal.com/sync/33b5f1fd-593a-463b-85d4-72b0af659279/web?callback=__jp03600.0 s2.5 KiB
dmp.im-apps.net/secure-signal/provider.js3600.0 s2.5 KiB
/utag/newsinternational/thesun.web.2017/prod/utag.109.js?...300.0 s2.0 KiB
/dxjsmodule/37.7ea1ffe71ad8c0799cc1.chunk.js?Q_CLIENTVERS...604800.0 s18.6 KiB
/utag/newsinternational/thesun.web.2017/prod/utag.33.js?u...300.0 s1.8 KiB
/utag/newsinternational/thesun.web.2017/prod/utag.132.js?...300.0 s1.7 KiB
rules.quantcount.com/rules-p-d8LZwWjQpIX_w.js3600.0 s1.9 KiB
cdn.mgaru.dev/static/myGaruStandalone.js14400.0 s2.1 KiB
/utag/newsinternational/thesun.web.2017/prod/utag.10.js?u...300.0 s1.5 KiB
/utag/newsinternational/thesun.web.2017/prod/utag.133.js?...300.0 s1.4 KiB
/utag/newsinternational/thesun.web.2017/prod/utag.151.js?...300.0 s1.4 KiB
/utag/newsinternational/thesun.web.2017/prod/utag.163.js?...300.0 s1.4 KiB
ads.pubmatic.com/AdServer/js/google-esp.js116443.0 s3.4 KiB
/utag/newsinternational/thesun.web.2017/prod/utag.121.js?...300.0 s1.3 KiB
/utag/newsinternational/thesun.web.2017/prod/utag.100.js?...300.0 s1.3 KiB
players.brightcove.net/videojs-pip/1/videojs-pip.css?ver=2.8.6900.0 s1.3 KiB
/c/1626/0/8/1.gif?gdpr=0&gdpr_consent=&gpp=DBAA&gpp_sid=-...0.0 ms1.0 KiB
/pagead/js/r20260420/r20110914/client/qs_click_protection...1209600.0 s8.9 KiB
pagead2.googlesyndication.com/pagead/js/r20260420/r20110914/abg_lite_fy2021.js1209600.0 s8.4 KiB
applets.ebxcdn.com/ebx.js7200.0 s1.0 KiB
ads.thesun.co.uk/dfp900.0 s834 B
/rp.gif?ts=1776798972118&id=a2_inyn9koa82u3&event=PageVis...0.0 ms666 B
d1z2jf7jlzjs58.cloudfront.net/p.js86400.0 s1.5 KiB
/hit.gif?id=5325&url=https%3A%2F%2Fwww.thesun.co.uk%2F&do...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.web.201...300.0 s432 B
/usersync/prebid?cb=https%3A%2F%2Fprebid-server.rubiconpr...0.0 ms405 B
secure.widget.cloud.opta.net/v3/bin/subscriptions_6.js?v=3.261.186400.0 s941 B
/pagead/js/r20260420/r20110914/elements/html/omrhp_fy2021.js1209600.0 s3.3 KiB
cdn.onesignal.com/sdks/web/v16/OneSignalSDK.page.js259200.0 s901 B
/pagead/js/r20260420/r20110914/client/window_focus_fy2021.js1209600.0 s1.3 KiB
/hadron.js?url=https%3A%2F%2Fwww.thesun.co.uk%2F&ref=http...432000.0 s185 B
/tr/?id=282877925815424&ev=PageView&dl=https%3A%2F%2Fwww....0.0 ms19 B
/tr/?id=2133888756862170&ev=PageView&dl=https%3A%2F%2Fwww...0.0 ms16 B
/tr/?id=282877925815424&ev=PermutiveSegmentEntry&dl=https...0.0 ms16 B
/tr/?id=2133888756862170&ev=PermutiveSegmentEntry&dl=http...0.0 ms16 B
/tr/?id=282877925815424&ev=PermutiveSegmentEntry_37362&dl...0.0 ms16 B
/tr/?id=2133888756862170&ev=PermutiveSegmentEntry_37362&d...0.0 ms16 B

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: 2.0 s
URLTime Spent
thesun.co.uk/776 ms
www.thesun.co.uk/1.2 s
www.thesun.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

The maximum potential First Input Delay that your users could experience is the duration of the longest task. Learn more about the Maximum Potential First Input Delay metric.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Diagnostics

Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to reduce Javascript execution time.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLTotal CPU TimeScript EvaluationScript Parse
www.thesun.co.uk/1.3 s337 ms15 ms
Unattributable1.2 s620 ms0.0 ms
/pagead/managed/js/gpt/m202604200101/pubads_impl.js?cb=31...1.1 s866 ms20 ms
cdn.permutive.com/88a66e5c-8fe8-48af-9c6c-3ec3f4983aad-web.js467 ms347 ms36 ms
client.aps.amazon-adsystem.com/publisher.js388 ms359 ms11 ms
sdk.mrf.io/statics/marfeel-sdk.js?id=4815294 ms187 ms0.6 ms
ads.thesun.co.uk/prebid.sun.min.js?ver=1.0.0291 ms223 ms22 ms
ads.thesun.co.uk/ads.sun.min.js?ver=1.0.0260 ms219 ms7.4 ms
/_static/??-eJytj80KwjAMgF/Iru4whwfxWdI2s539o0kRfXonHnYQ1...133 ms23 ms2.6 ms
www.googletagmanager.com/gtag/js?id=G-SQ24F7Q7YW&cx=c&gtm=4e64h1113 ms92 ms21 ms
metrics.rapidedge.io/gamera.js?ltv=1&audience=1&tpcs=1&partner=newsuk111 ms90 ms3.6 ms
p.toadmash.net/1776796208/a4d176ff-affb-4474-bcc5-6d29ef69db52.js102 ms95 ms5.3 ms
blob:https://www.thesun.co.uk/f8f809bb-199e-42c0-a6f0-6b68f73a9da491 ms86 ms3.2 ms
analytics.tiktok.com/i18n/pixel/static/main.MWE0ZWQ3ZWQwMQ.js88 ms71 ms15 ms
js-agent.newrelic.com/nr-spa-1.309.0.min.js74 ms60 ms3.3 ms
connect.facebook.net/en_US/fbevents.js73 ms38 ms35 ms
/signals/config/282877925815424?v=2.9.303&r=stable&domain...63 ms55 ms6.4 ms
www.googletagmanager.com/gtag/js?id=DC-9944708&cx=c&gtm=4e64h160 ms47 ms12 ms
cmp.cdn.thesun.co.uk/unified/wrapperMessagingWithoutDetection.js58 ms51 ms4.4 ms
www.googletagmanager.com/gtag/destination?id=G-XXXXXXXXXX&cx=c&gtm=4e64h157 ms44 ms12 ms
/scripts/ee8bf0fbcf04ca7e8abc933407f3310bf64c71d2a58f6654...55 ms30 ms20 ms
/dxjsmodule/37.7ea1ffe71ad8c0799cc1.chunk.js?Q_CLIENTVERS...52 ms36 ms3.1 ms
cdn.onesignal.com/sdks/web/v16/OneSignalSDK.page.es6.js?v=16060351 ms34 ms4.6 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 Evaluation4.8 s
Style & Layout1.1 s
Other886 ms
Script Parsing & Compilation493 ms
Parse HTML & CSS125 ms
Garbage Collection79 ms
Rendering66 ms

Many navigations are performed by going back to a previous page, or forwards again. The back/forward cache (bfcache) can speed up these return navigations. Learn more about the bfcache

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failure reasonFailure type
An iframe on the page started a navigation that did not complete.Not actionable

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 1.4 MiB
URLTransfer SizeEst Savings
www.googletagmanager.com/gtag/js?id=G-T4GNPC7D0J&cx=c&gtm=4e64h1175.5 KiB112.6 KiB
www.googletagmanager.com/gtag/js?id=G-SQ24F7Q7YW146.9 KiB103.0 KiB
secure.widget.cloud.opta.net/v3/v3.opta-widgets.js?ver=1.0.0148.9 KiB101.5 KiB
connect.facebook.net/en_US/fbevents.js96.5 KiB90.6 KiB
ads.thesun.co.uk/prebid.sun.min.js?ver=1.0.0203.0 KiB87.4 KiB
/pagead/managed/js/gpt/m202604200101/pubads_impl.js?cb=31...187.7 KiB86.8 KiB
www.thesun.co.uk/assets/optimizely/5492586870210560.js?ver=1.0.0100.4 KiB74.2 KiB
www.googletagmanager.com/gtag/destination?id=G-XXXXXXXXXX&cx=c&gtm=4e64h1136.7 KiB71.0 KiB
www.googletagmanager.com/gtag/js?id=G-T4GNPC7D0J175.6 KiB67.4 KiB
www.googletagmanager.com/gtag/js?id=G-SQ24F7Q7YW&cx=c&gtm=4e64h1147.0 KiB61.4 KiB
www.googletagmanager.com/gtag/js?id=DC-9944708&cx=c&gtm=4e64h1129.4 KiB59.9 KiB
www.googletagmanager.com/gtag/js?id=G-K2ECMCJBFQ144.5 KiB57.9 KiB
analytics.tiktok.com/i18n/pixel/static/main.MWE0ZWQ3ZWQwMQ.js109.0 KiB56.1 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.thesun.co.uk/f8f809bb-199e-42c0-a6f0-6b68f73a9da488.1 KiB32.7 KiB
ak.sail-horizon.com/spm/spm.v1.min.js47.7 KiB32.5 KiB
client.aps.amazon-adsystem.com/publisher.js82.1 KiB32.2 KiB
cdn.id5-sync.com/api/1.0/esp.js34.4 KiB30.6 KiB
connect.facebook.net/en_US/fbevents.js96.5 KiB29.9 KiB
cdn.onesignal.com/sdks/web/v16/OneSignalSDK.page.es6.js?v=16060341.5 KiB27.5 KiB
/dxjsmodule/12.1a2b7192fd54e87d3971.chunk.js?Q_CLIENTVERS...35.7 KiB24.5 KiB
sdk.mrf.io/statics/marfeel-sdk.js?id=481559.4 KiB24.4 KiB
cdn.permutive.com/88a66e5c-8fe8-48af-9c6c-3ec3f4983aad-web.js250.3 KiB24.3 KiB
sdk.mrf.io/statics/47bd3e88b6bda15c34ce.js23.9 KiB22.0 KiB
cmp.cdn.thesun.co.uk/unified/4.40.1/usnat.f12613136193900e32e2.bundle.js42.0 KiB21.2 KiB
www.thesun.co.uk/wp-includes/js/dist/vendor/react-dom.min.js?ver=18.3.1.141.4 KiB20.6 KiB
uk-script.dotmetrics.net/Scripts/script.js?v=36228.1 KiB20.4 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.thesun.co.uk/prebid.sun.min.js?ver=1.0.0203.4 KiB
/pagead/managed/js/gpt/m202604200101/pubads_impl.js?cb=31...187.7 KiB
/scripts/ee8bf0fbcf04ca7e8abc933407f3310bf64c71d2a58f6654...176.6 KiB
www.googletagmanager.com/gtag/js?id=G-T4GNPC7D0J175.6 KiB
www.googletagmanager.com/gtag/js?id=G-T4GNPC7D0J&cx=c&gtm=4e64h1175.5 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-SQ24F7Q7YW147.0 KiB
www.googletagmanager.com/gtag/js?id=G-K2ECMCJBFQ144.8 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
●Font display
●LCP breakdown
●LCP request discovery
●Modern HTTP
●Optimize viewport for mobile
●Minify CSS
●Reduce unused CSS
●User Timing marks and measures 24 user timings
●Avoid long main-thread tasks 20 long tasks found
●Image elements have explicit `width` and `height`
●Network Requests
●Network Round Trip Times 260 ms
●Server Backend Latencies 1,220 ms
●Tasks
●Diagnostics
●Metrics
●Screenshot Thumbnails
●Final Screenshot
●Script Treemap Data
●Resources Summary
●Initial server response time was short Root document took 300 ms
●Avoid large layout shifts 4 layout shifts found
○INP breakdown
○Avoid non-composited animations
93

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
MORE SECTIONS Motors Tech Royals Wellness Dear Deidre Betting Shopping Topics … body.home > div.horizontal-nav > nav.subnav-dropdown

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

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 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.
●Elements with visible text labels have matching accessible names.
○`[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
○`<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.
○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.thesun.co.uk/prebid.sun.min.js?ver=1.0.0 line 10, col 409357
AttributionReporting
connect.facebook.net/en_US/fbevents.js line 279, col 769

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.thesun.co.uk/
Attestation check for Protected Audience on https://fastlane.rubiconproject.com failed.
www.thesun.co.uk/
Attestation check for Protected Audience on https://fastlane.rubiconproject.com failed.
www.thesun.co.uk/
Attestation check for Protected Audience on https://fastlane.rubiconproject.com failed.
www.thesun.co.uk/
Attestation check for Protected Audience on https://fastlane.rubiconproject.com failed.
www.thesun.co.uk/
Attestation check for Protected Audience on https://fastlane.rubiconproject.com failed.
www.thesun.co.uk/
Attestation check for Protected Audience on https://fastlane.rubiconproject.com failed.
www.thesun.co.uk/
Attestation check for Protected Audience on https://fastlane.rubiconproject.com failed.
www.thesun.co.uk/
Attestation check for Protected Audience on https://fastlane.rubiconproject.com failed.
www.thesun.co.uk/
Attestation check for Protected Audience on https://fastlane.rubiconproject.com failed.
www.thesun.co.uk/
Attestation check for Protected Audience on https://grid-bidder.criteo.com failed.
www.thesun.co.uk/
Attestation check for Protected Audience on https://grid-bidder.criteo.com failed.
www.thesun.co.uk/
Attestation check for Protected Audience on https://hbopenbid.pubmatic.com failed.
www.thesun.co.uk/
Attestation check for Protected Audience on https://hbopenbid.pubmatic.com failed.
www.thesun.co.uk/
Attestation check for Protected Audience on https://htlb.casalemedia.com failed.
www.thesun.co.uk/
Attestation check for Protected Audience on https://htlb.casalemedia.com failed.
www.thesun.co.uk/ 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
/ssp-sync?gdpr=0&us_privacy=&redirect=https%3A%2F%2Fprebi...
Failed to load resource: net::ERR_NAME_NOT_RESOLVED
/ups/58813/fed?gpp=DBAA&gpp_sid=-1&gdpr=false&v=1&url=htt...
Failed to load resource: the server responded with a status of 400 ()
www.thesun.co.uk/ line 2061, col 0
ReferenceError: wp is not defined at https://www.thesun.co.uk/:2062:1
www.thesun.co.uk/ line 2075, col 1
ReferenceError: wp is not defined at https://www.thesun.co.uk/:2076:2 at https://www.thesun.co.uk/:2078:4
dmp.im-apps.net/secure-signal/provider.js
Uncaught SyntaxError: Identifier 'p' has already been declared

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.thesun.co.uk/prebid.sun.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.thesun.co.uk/prod/sp/nid_sp.jsnid.thesun.co.uk/prod/sp/sp.js.map
uk-script.dotmetrics.net/Scripts/script.js?v=362uk-script.dotmetrics.net/Scripts/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
ak.sail-horizon.com/spm/spm.v1.min.jsak.sail-horizon.com/spm/spm.v1.min.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
92

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.

Crawling and Indexing

Search engines may use `href` attributes on links to crawl websites. Ensure that the `href` attribute of anchor elements links to an appropriate destination, so more pages of the site can be discovered. Learn how to make links crawlable

Why this matters

Performance issues directly impact user engagement and conversion rates.

Uncrawlable Link
Do not sell or share my personal information div.site-footer__grid > div.site-footer__copyright > p > a.optanon-toggle-display

To appear in search results, crawlers need access to your app.

○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
●robots.txt is valid
●Image elements have `[alt]` attributes
●Document has a valid `hreflang`
●Document has a valid `rel=canonical`

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