Lighthouse Mobile

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

SCORE

GRADE

FIX

REVIEW

PASS

INFO

Detailed Report

Audit breakdown by category with detailed findings.

Performance

Insights

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

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
cdn.permutive.com/e488cdb0-e7cb-4d91-9648-60d437d8e491-web.js	900.0 s	155.3 KiB
prebid.the-ozone-project.com/hw2/builds/ozwrap_pbjs.js	14400.0 s	187.4 KiB
ichef.bbci.co.uk/images/ic/raw/p0m5nxgs.jpg	86400.0 s	297.2 KiB
/scripts/64ca3dfd44dd68a629e2e51a27e7ccd960974b5961e4ca28...	3600.0 s	123.5 KiB
cdn.optimizely.com/public/4621041136/s/bbcx_prod.js	120.0 s	98.9 KiB
/scripts/727d9b43a076aa925788e8b215b1d39a710cbe7ace5268ab...	3600.0 s	116.0 KiB
cdn.tinypass.com/api/tinypass.min.js	14400.0 s	132.6 KiB
buy-eu.piano.io/widget/dist/checkout/css/checkout.bundle.1.1.css	14400.0 s	101.9 KiB
browser.covatic.io/sdk/v1/latest.js	0.0 ms	66.0 KiB
/pagead/managed/js/activeview/current/ufs_web_display.js	3600.0 s	73.1 KiB
emp.bbci.co.uk/emp/bump-4/bump-4.js	300.0 s	40.3 KiB
cdn.privacy-mgmt.com/unified/wrapperMessagingWithoutDetection.js	3600.0 s	42.5 KiB
cdn.cxense.com/cx.js	3600.0 s	38.1 KiB
cdn.cxense.com/cx.js	3600.0 s	38.1 KiB
pub.doubleverify.com/dvtag/29028254/DV1298722/pub.js	900.0 s	33.6 KiB
uk-script.dotmetrics.net/Scripts/script.js?v=362	0.0 ms	28.4 KiB
gn-web-assets.api.bbc.com/ngas/latest/dotcom-ads.js	360.0 s	29.9 KiB
gn-web-assets.api.bbc.com/ngas/latest/dotcom-bootstrap.js	360.0 s	22.3 KiB
pagead2.googlesyndication.com/pagead/js/rum.js	3600.0 s	25.1 KiB
securepubads.g.doubleclick.net/pagead/js/rum.js	3600.0 s	25.1 KiB
/_sam/H4sIAAAAAAAA_62YS4_bOAyA_1BnjGYve20zu9MCWyBo2l4XtEQ...	603823.0 s	127.0 KiB
gn-web-assets.api.bbc.com/ngas/latest/dotcom-analytics.js	360.0 s	13.0 KiB
ichef.bbci.co.uk/images/ic/800x450/p0ndc93k.jpg.webp	86400.0 s	29.8 KiB
buy-eu.piano.io/widget/dist/checkout/css/img/Loader.gif	14400.0 s	15.2 KiB
cdn.undertone.com/js/ajs.js	0.0 ms	8.4 KiB
gn-web-assets.api.bbc.com/ngas/latest/dotcom-preroll.js	360.0 s	6.7 KiB
static.chartbeat.com/js/chartbeat.js	86400.0 s	15.9 KiB
prebid.the-ozone-project.com/hw2/OZONEBBC4784/1500000107/current/ozpb.min.js	14400.0 s	8.4 KiB
/ng/common/i18n/platform-translation-map_en_US.js?version...	86400.0 s	14.0 KiB
cdn.cxense.com/cx.cce.js	3600.0 s	6.8 KiB
cdn.cxense.com/ari.js	3600.0 s	6.3 KiB
/checkout/general/loadTranslationMap?aid=7I7hmRshpe&versi...	86400.0 s	10.6 KiB
/dvtp_src.js	900.0 s	3.8 KiB
sb.scorecardresearch.com/internal-cs/default/beacon.js	86400.0 s	6.7 KiB
/hw2/OZONEBBC4784/1500000107/current/customized_plugin.js	14400.0 s	2.3 KiB
prebid.the-ozone-project.com/hw2/OZONEBBC4784/1500000107/current/adUnits.min.js	14400.0 s	871 B
buy-eu.piano.io/ng/common/pn-spinner/pn-spinner.css	14400.0 s	722 B
/hit.gif?id=13934&url=https%3A%2F%2Fwww.bbc.com%2F&dom=ww...	86400.0 s	1.2 KiB
/Repo/rep.gif?ver=3.3.0&typ=pgv&rnd=mo0nzxc6fjdxmoxl&sid=...	0.0 ms	412 B
/image.gif?id=727d9b43a076aa925788e8b215b1d39a710cbe7ace5...	0.0 ms	405 B
/pagead/js/r20260414/r20110914/client/window_focus_fy2021.js	1209600.0 s	1.6 KiB
securepubads.g.doubleclick.net/pagead/js/rum.js	3600.0 s	0 B
/dvtp_src.js	900.0 s	0 B

Consider setting font-display to swap or optional to ensure text is consistently visible. swap can be further optimized to mitigate layout shifts with font metric overrides.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Est Savings
static.files.bbci.co.uk/fonts/reith/2.512/BBCReithSerif_W_Md.woff2	25 ms
static.files.bbci.co.uk/fonts/reith/2.512/BBCReithSans_W_Rg.woff2	20 ms
static.files.bbci.co.uk/fonts/reith/2.512/BBCReithSerif_W_Rg.woff2	20 ms
static.files.bbci.co.uk/fonts/reith/2.512/BBCReithSans_W_ExBd.woff2	15 ms
static.files.bbci.co.uk/fonts/reith/2.512/BBCReithSans_W_Bd.woff2	10 ms
static.files.bbci.co.uk/fonts/reith/2.512/BBCReithSans_W_Md.woff2	5.0 ms

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

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

items: [map[reflowTime:0.578 source:map[column:48190 line:18 type:source-location url:https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604100101/pubads_impl.js urlProvider:network]] map[reflowTime:23.331 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: Iranian women walk past a police officer standing guard on a street, amid a cea…

path: 1,HTML,1,BODY,1,DIV,0,DIV,10,MAIN,0,ARTICLE,1,SECTION,0,SECTION,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,IMG

selector: div.sc-d8331fdf-5 > div.sc-d8331fdf-1 > div.sc-5340b511-1 > img.sc-5340b511-0

snippet: <img sizes="(min-width: 1008px) 33vw, (min-width: 600px) 66vw, 100vw" srcset="https://ichef.bbci.co.uk/news/240/cpsprodpb/495f/live/23e2cf10-3911-11f1-9…" src="https://ichef.bbci.co.uk/news/800/cpsprodpb/495f/live/23e2cf10-3911-11f1-9…" loading="eager" alt="Iranian women walk past a police officer standing guard on a street, amid …" class="sc-5340b511-0 hLdNfA">

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

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

Lists the toplevel main thread tasks that executed during page load.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Collection of useful page vitals.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Time to Interactive is the amount of time it takes for the page to become fully interactive. Learn more about the Time to Interactive metric.

Why this matters

Performance issues directly impact user engagement and conversion rates.

TTI

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Redirects introduce additional delays before the page can be loaded. Learn how to avoid page redirects.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 7.8 s

URL	Time Spent
bbc.co.uk/	753 ms
www.bbc.co.uk/	7.0 s
www.bbc.com/	0.0 ms

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.

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.

Lists the longest tasks on the main thread, useful for identifying worst contributors to input delay. Learn how to avoid long main-thread tasks

Why this matters

Performance issues directly impact user engagement and conversion rates.

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: 600 ms 897.8 KiB

URL	Transfer Size	Est Savings
static.files.bbci.co.uk/core/bundle-vendor-optimizely.59247a9d8bfc766bfe78.js	338.5 KiB	151.4 KiB
prebid.the-ozone-project.com/hw2/builds/ozwrap_pbjs.js	187.3 KiB	139.6 KiB
/pagead/managed/js/gpt/m202604100101/pubads_impl.js	186.4 KiB	87.4 KiB
static.files.bbci.co.uk/core/bundle-default-vendors.daaeb91fc3775b616777.js	141.0 KiB	75.9 KiB
/core/bundle-component-portrait-video-promo.8efa41d616423...	138.4 KiB	67.3 KiB
static.files.bbci.co.uk/core/bundle-pwa.b14a1b5daaff602fe366.js	89.6 KiB	64.3 KiB
static.files.bbci.co.uk/core/bundle-global-navigation.9a721964c87f91c8f799.js	55.2 KiB	49.4 KiB
static.files.bbci.co.uk/core/bundle-component-tabs.66be1bc2c79ea84602bc.js	114.1 KiB	38.4 KiB
cdn.doubleverify.com/dv-measurements9748.js	94.2 KiB	36.2 KiB
cdn.doubleverify.com/dv-measurements9748.js	94.2 KiB	35.2 KiB
browser.covatic.io/sdk/v1/latest.js	65.6 KiB	30.9 KiB
/pagead/managed/js/activeview/current/ufs_web_display.js	73.1 KiB	30.3 KiB
static.files.bbci.co.uk/core/bundle-website.b7de30aa3118ca2c1acd.js	38.3 KiB	28.0 KiB
cdn.permutive.com/e488cdb0-e7cb-4d91-9648-60d437d8e491-web.js	154.8 KiB	21.7 KiB
cdn.cxense.com/cx.js	37.5 KiB	21.3 KiB
uk-script.dotmetrics.net/Scripts/script.js?v=362	28.1 KiB	20.5 KiB

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 reason	Failure type
The page has an unload handler in the main frame.	Actionable
The page has an unload handler in a sub frame.	Actionable

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
.gUePlo { width: 100%; object-fit: contain; position: absolute; } …	15.0 KiB	2.1 KiB

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 4.0 KiB

URL	Transfer Size	Est Savings
cdn.undertone.com/js/ajs.js	8.0 KiB	4.0 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
/bbcdotcom/web/20260407-092955-f3cfe0ee04-web-3.0.0-2/_ne...	326.7 KiB
ichef.bbci.co.uk/images/ic/raw/p0m5nxgs.jpg	297.2 KiB
prebid.the-ozone-project.com/hw2/builds/ozwrap_pbjs.js	187.4 KiB
/pagead/managed/js/gpt/m202604100101/pubads_impl.js	186.4 KiB
/mobile/api/v1.0/profile/get_definitions?client_id=646f65...	169.7 KiB
cdn.permutive.com/e488cdb0-e7cb-4d91-9648-60d437d8e491-web.js	155.3 KiB
cdn.tinypass.com/api/tinypass.min.js	132.6 KiB
/_sam/H4sIAAAAAAAA_62YS4_bOAyA_1BnjGYve20zu9MCWyBo2l4XtEQ...	127.0 KiB
/scripts/64ca3dfd44dd68a629e2e51a27e7ccd960974b5961e4ca28...	123.5 KiB
static.files.bbci.co.uk/core/bundle-default-vendors.daaeb91fc3775b616777.js	119.7 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.


Trump and the Tech Titans `a.sc-8a623a54-0 > div.sc-acc23e20-0 > div.sc-acc23e20-1 > img.sc-5340b511-0`

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

●Improve image delivery

●LCP breakdown

●Modern HTTP

●Render blocking requests

●Optimize viewport for mobile

●Reduce unused CSS

●User Timing marks and measures 63 user timings

●Network Requests

●Network Round Trip Times 50 ms

●Server Backend Latencies 180 ms

●Metrics

●Screenshot Thumbnails

●Final Screenshot

●Script Treemap Data

●Resources Summary

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

●Avoid large layout shifts 2 layout shifts found

○INP breakdown

○Avoid non-composited animations

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.

Names and labels

When a button doesn't have an accessible name, screen readers announce it as "button", making it unusable for users who rely on screen readers. Learn how to make buttons more accessible.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.sc-643c51a4-1 > div.sc-643c51a4-6 > div.sc-5248fb9c-9 > button.sc-5248fb9c-0 `div.sc-643c51a4-1 > div.sc-643c51a4-6 > div.sc-5248fb9c-9 > button.sc-5248fb9c-0`

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.

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
From friendship to friction: Inside the growing tensions between Trump and Star… `div.sc-8a86ca4a-3 > div.sc-feaf8701-1 > div.sc-feaf8701-0 > h2.sc-feaf8701-3`
BBC’s Sarah Smith examines how the Iran war has led to discrepancies between th… `a.sc-8a623a54-0 > div.sc-8a86ca4a-0 > div.sc-8a86ca4a-3 > p.sc-8a86ca4a-4`
Politics `div.sc-8a86ca4a-0 > div.sc-8a86ca4a-3 > div.sc-1907e52a-0 > span.sc-1907e52a-2`
Winner of €1m Picasso 'thought it was a scam', organiser tells BBC `div.sc-8a86ca4a-3 > div.sc-feaf8701-1 > div.sc-feaf8701-0 > h2.sc-feaf8701-3`
One of the charity draw organisers tells BBC Radio 4's Front Row about calling … `a.sc-8a623a54-0 > div.sc-8a86ca4a-0 > div.sc-8a86ca4a-3 > p.sc-8a86ca4a-4`
Europe `div.sc-8a86ca4a-0 > div.sc-8a86ca4a-3 > div.sc-1907e52a-0 > span.sc-1907e52a-2`
Go on patrol with the Canadian Rangers across the frozen Arctic `div.sc-8a86ca4a-3 > div.sc-feaf8701-1 > div.sc-feaf8701-0 > h2.sc-feaf8701-3`
The BBC rode along with the Rangers on the last leg of a historic trek as they … `a.sc-8a623a54-0 > div.sc-8a86ca4a-0 > div.sc-8a86ca4a-3 > p.sc-8a86ca4a-4`
US & Canada `div.sc-8a86ca4a-0 > div.sc-8a86ca4a-3 > div.sc-1907e52a-0 > span.sc-1907e52a-2`
Dashcam captures meteor soaring through sky `div.sc-8a86ca4a-3 > div.sc-feaf8701-1 > div.sc-feaf8701-0 > h2.sc-feaf8701-3`
A meteor that experts say was travelling over the North Sea is spotted in North… `a.sc-8a623a54-0 > div.sc-8a86ca4a-0 > div.sc-8a86ca4a-3 > p.sc-8a86ca4a-4`
Northamptonshire `div.sc-8a86ca4a-0 > div.sc-8a86ca4a-3 > div.sc-1907e52a-0 > span.sc-1907e52a-2`
Reporter told to pose as gay for asylum claim `div.sc-8a86ca4a-3 > div.sc-feaf8701-1 > div.sc-feaf8701-0 > h2.sc-feaf8701-3`
A BBC reporter goes undercover and speaks to an adviser encouraging migrants to… `a.sc-8a623a54-0 > div.sc-8a86ca4a-0 > div.sc-8a86ca4a-3 > p.sc-8a86ca4a-4`
Politics `div.sc-8a86ca4a-0 > div.sc-8a86ca4a-3 > div.sc-1907e52a-0 > span.sc-1907e52a-2`
Moment gunman tackled by school principal `div.sc-8a86ca4a-3 > div.sc-feaf8701-1 > div.sc-feaf8701-0 > h2.sc-feaf8701-3`
CCTV footage shows a high school principal charging towards a former student wh… `a.sc-8a623a54-0 > div.sc-8a86ca4a-0 > div.sc-8a86ca4a-3 > p.sc-8a86ca4a-4`
US & Canada `div.sc-8a86ca4a-0 > div.sc-8a86ca4a-3 > div.sc-1907e52a-0 > span.sc-1907e52a-2`
'I can feel the difference' - Americans react to soaring gas prices `div.sc-8a86ca4a-3 > div.sc-feaf8701-1 > div.sc-feaf8701-0 > h2.sc-feaf8701-3`
President Donald Trump said over the weekend that oil and gas prices "could be … `a.sc-8a623a54-0 > div.sc-8a86ca4a-0 > div.sc-8a86ca4a-3 > p.sc-8a86ca4a-4`
US & Canada `div.sc-8a86ca4a-0 > div.sc-8a86ca4a-3 > div.sc-1907e52a-0 > span.sc-1907e52a-2`
New footage shows moment Orion capsule hatch is opened at sea `div.sc-8a86ca4a-3 > div.sc-feaf8701-1 > div.sc-feaf8701-0 > h2.sc-feaf8701-3`
Newly released video shows the moment the hatch of Artemis II's Orion capsule i… `a.sc-8a623a54-0 > div.sc-8a86ca4a-0 > div.sc-8a86ca4a-3 > p.sc-8a86ca4a-4`
Science & Environment `div.sc-8a86ca4a-0 > div.sc-8a86ca4a-3 > div.sc-1907e52a-0 > span.sc-1907e52a-2`
US Politics Unspun `div.sc-8a86ca4a-3 > div.sc-feaf8701-1 > div.sc-feaf8701-0 > h2.sc-feaf8701-3`
No noise. No agenda. Just expert analysis of the issues that matter most from A… `a.sc-8a623a54-0 > div.sc-8a86ca4a-0 > div.sc-8a86ca4a-3 > p.sc-8a86ca4a-4`
Download the BBC app `div.sc-8a86ca4a-3 > div.sc-feaf8701-1 > div.sc-feaf8701-0 > h2.sc-feaf8701-3`
Click here to download the BBC app for Apple and Android devices. `a.sc-8a623a54-0 > div.sc-8a86ca4a-0 > div.sc-8a86ca4a-3 > p.sc-8a86ca4a-4`
Sign up to World of Business `div.sc-8a86ca4a-3 > div.sc-feaf8701-1 > div.sc-feaf8701-0 > h2.sc-feaf8701-3`
Gain the leading edge with global insights for the boardroom and beyond, in you… `a.sc-8a623a54-0 > div.sc-8a86ca4a-0 > div.sc-8a86ca4a-3 > p.sc-8a86ca4a-4`
Register for a BBC account `div.sc-8a86ca4a-3 > div.sc-feaf8701-1 > div.sc-feaf8701-0 > h2.sc-feaf8701-3`
Don't have time to read everything right now? Your BBC account lets you save ar… `a.sc-8a623a54-0 > div.sc-8a86ca4a-0 > div.sc-8a86ca4a-3 > p.sc-8a86ca4a-4`
Sign up for the Essential List `div.sc-8a86ca4a-3 > div.sc-feaf8701-1 > div.sc-feaf8701-0 > h2.sc-feaf8701-3`
The week's best stories, handpicked by BBC editors, in your inbox every Tuesday… `a.sc-8a623a54-0 > div.sc-8a86ca4a-0 > div.sc-8a86ca4a-3 > p.sc-8a86ca4a-4`

These are opportunities to improve the legibility of your content.

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
Vote to stop Iran war fails in US Senate again as Democrats vow to keep trying `div > a.sc-8a623a54-0 > div.sc-47f19540-0 > h4.sc-47f19540-1`

These are opportunities to improve keyboard navigation in your application.

Visible text labels that do not match the accessible name can result in a confusing experience for screen reader users. Learn more about accessible names.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
The Global Story Trump v Pope `div.sc-225578b-0 > div.sc-d2483551-4 > div > a.sc-8a623a54-0`
Global News Podcast Three years of war in Sudan `div.sc-225578b-0 > div.sc-d2483551-4 > div > a.sc-8a623a54-0`
Americast Has Trump given up on the midterms? `div.sc-225578b-0 > div.sc-d2483551-4 > div > a.sc-8a623a54-0`
Witness History The assassination of Thomas Sankara `div.sc-225578b-0 > div.sc-d2483551-4 > div > a.sc-8a623a54-0`
The Documentary Podcast Surviving my daughter's killing `div.sc-225578b-0 > div.sc-d2483551-4 > div > a.sc-8a623a54-0`
The Interview John Healey, UK Defence Secretary: Russia’s covert operations `div.sc-225578b-0 > div.sc-d2483551-4 > div > a.sc-8a623a54-0`
Business Daily Reinventing Kodak `div.sc-225578b-0 > div.sc-d2483551-4 > div > a.sc-8a623a54-0`
Witness History Roddy Doyle: Paddy Clarke Ha Ha Ha `div.sc-225578b-0 > div.sc-d2483551-4 > div > a.sc-8a623a54-0`
Business Daily Iran’s economy: Counting the cost of war `div.sc-225578b-0 > div.sc-d2483551-4 > div > a.sc-8a623a54-0`
The Documentary Podcast Pakistan: Hospitals putting children at risk of HIV `div.sc-225578b-0 > div.sc-d2483551-4 > div > a.sc-8a623a54-0`
2025 1 episode TV-G View series `div.sc-3211a4f7-0 > div.sc-225578b-0 > div > a.sc-8a623a54-0`
Rugby Union Weekly Women's Six Nations: Record crowds & programme gaffs `div.sc-225578b-0 > div.sc-d2483551-4 > div > a.sc-8a623a54-0`
Football Daily 72+ EFL Pod: Fuchs fighting & Leicester’s ‘last chance’ `div.sc-225578b-0 > div.sc-d2483551-4 > div > a.sc-8a623a54-0`
More than the Score Vaibhav Sooryavanshi: The teenager hitting the IPL for six `div.sc-225578b-0 > div.sc-d2483551-4 > div > a.sc-8a623a54-0`
Test Match Special 'I should have died' - James Taylor 10 years on `div.sc-225578b-0 > div.sc-d2483551-4 > div > a.sc-8a623a54-0`
FPL Podcast from BBC Sport Snooker Loopy `div.sc-225578b-0 > div.sc-d2483551-4 > div > a.sc-8a623a54-0`
BBC Women's Football Weekly England beat world champions Spain on Walsh's miles… `div.sc-225578b-0 > div.sc-d2483551-4 > div > a.sc-8a623a54-0`
Football Daily UCL Debrief: Liverpool knocked out & Atleti down Barcelona `div.sc-225578b-0 > div.sc-d2483551-4 > div > a.sc-8a623a54-0`
More than the Score Sophie Fawns: 'We need to talk about ovarian cancer' `div.sc-225578b-0 > div.sc-d2483551-4 > div > a.sc-8a623a54-0`

○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

●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

●`[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

●Touch targets have sufficient size and spacing.

●Skip links are focusable.

●Document has a main landmark.

●Deprecated ARIA roles were not used

○`[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.

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

○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

General

Deprecated APIs will eventually be removed from the browser. Learn more about deprecated APIs.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Deprecation / Warning	Source
Topics	prebid.the-ozone-project.com/hw2/builds/ozwrap_pbjs.js line 94, col 1186
SharedStorage	/pagead/managed/js/activeview/current/ufs_web_display.js line 252, col 234

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
/artifacts/models/646f651b59194d51cf2576ac/ml-classificat...	`Failed to load resource: the server responded with a status of 404 ()`
www.bbc.com/	`Refused to execute script from 'https://secure-us.imrworldwide.com/cgi-bin/m?ci=us-804789h&cg=0&cc=1&si=https://www.bbc.com/&rp=https://www.bbc.co.uk/&ts=compact&rnd=1776294694056&ja=1' because its MIME type ('image/gif') is not executable.`

●Uses HTTPS

●Avoids third-party cookies

●Allows users to paste into input fields

●Avoids requesting the geolocation permission on page load

●Avoids requesting the notification permission on page load

●Displays images with correct aspect ratio

●Serves images with appropriate resolution

●Page has the HTML doctype

●Properly defines charset

●No 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`