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Audit Complete

Results for https://bbc.co.uk

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GB · GBP (£) · Estimated Applicable regulations: UK GDPR · PECR · Equality Act 2010 Dev cost: £75/hr How jurisdiction is detected
United Stated United Stated · New York Completed: Apr 15, 2026 23:13 UTC
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Mobile 375 × 812

Screenshot of the audited page (Mobile 375×812)

Desktop 1440 × 900

Screenshot of the audited page (Desktop 1440×900)
C79

Site Health

Score: 79 / 100

Based on 8 categories, 0 sections

Decent speed, but optimizing further could improve engagement.

Several missing protections leave your users and data exposed.

Mostly accessible, but some users still face barriers.

Well-optimized for search — your content is discoverable.

Solid infrastructure — fast server responses across the board.

Mostly compliant — a few items need attention.

Rich content metadata — your pages look great everywhere.

Heavier than average — reducing page weight saves energy and bandwidth.

How is this calculated?

The overall score is a weighted average of individual category scores. Categories with more impact on user experience and security carry more weight.

Performance 25%Security 25%Accessibility 15%SEO 10%Infrastructure 10%Compliance 8%Content 5%Sustainability 2%

Weights reflect general web best practices. Individual needs may differ.

How the composite score is calculated

How you compare

Apple sites average 73
+6 above average
Better than 86% of Apple sites See full Apple benchmark →
Google Search Console sites average 73
+6 above average
Better than 87% of Google Search Console sites See full Google Search Console benchmark →

Top Priorities (5)

1

Content-Security-Policy header is missing

Security gaps expose your site and users to attacks, eroding trust.

Security › Security Headers
2

No Content-Security-Policy header found

Security gaps expose your site and users to attacks, eroding trust.

Security › Content Security Policy
3

Page weighs 16.8 MB (5.7 MB transferred)

Performance issues directly impact user engagement and conversion rates.

Performance › Page Weight Budget
4

is missing width/height — may cause layout shift

Performance issues directly impact user engagement and conversion rates.

Performance › Image Optimization
5

306 third-party resources (100% of weight)

Performance issues directly impact user engagement and conversion rates.

Performance › Page Weight Inventory
View fix priority matrix

Fix Priority Matrix

5 findings

Quick Wins

2

High impact, low effort — start here.

Strategic

3

High impact, requires investment.

Easy Improvements

0

Small gains, minimal effort.

Nothing in this quadrant — good news.

Deprioritize

0

Low impact, high effort — do last.

Nothing in this quadrant — good news.

← Low effort High effort →
BeaverCheck badge
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[![BeaverCheck](https://beavercheck.com/badge?url=https%3A%2F%2Fbbc.co.uk)](https://beavercheck.com/results/7f6dbdf8-2932-4c35-b5b3-0163b8912883)
<a href="https://beavercheck.com/results/7f6dbdf8-2932-4c35-b5b3-0163b8912883"><img src="https://beavercheck.com/badge?url=https%3A%2F%2Fbbc.co.uk" alt="BeaverCheck Score"></a>
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What fixing these means

Your site performs reasonably well, but a few targeted fixes could meaningfully improve results. Your LCP of 16.8s exceeds Google's 2.5s 'Good' threshold and the 3 performance issues below directly contribute to it. Addressing the critical issues below would have the most immediate impact on your user trust.

2 security gaps detected — browsers may warn visitors about your site.
Your LCP is 16.8s — fixing the 3 performance criticals could bring it under Google's 2.5s 'Good' threshold.
B
Could reach Estimate based on resolving critical issues

Return on Investment

£525 investment → £1.13/month returns + GBP 18,050,000 risk avoided

Payback period: > 2 years First-year ROI: -97%

Investment

£525

7h · 5 findings

Monthly returns

£1.13 /mo

~£14 / year

  • Bandwidth savings £1.13

Regulatory risk avoided

GBP 18,050,000

if kept compliant

  • UK GDPR GBP 17,500,000
  • PECR GBP 500,000
  • Equality Act 2010 GBP 50,000

£75 — in quick wins — start here for the fastest payback

Figures combine localized regulatory fine ceilings, search/conversion value priced against local CPC, and bandwidth waste estimates. Results depend on implementation quality and audience composition. Not legal or financial advice.

Full methodology & sources

Estimated Remediation Cost

£525

7.0 developer hours at £75/hr

Based on United Kingdom rates (£75/hr)

Quick wins
£75 2 fixes in ~60 minutes

Start here for the best return on investment

Cost by category

Cost by effort level

Adjust assumptions
£ /hr

Rates reflect fully-loaded developer cost including overhead

How developer rates are sourced

What Inaction Is Costing You

£1,504,168 / month at risk

~£18,050,014 / year if left unfixed

Compliance Risk

£18,050,000

UK GDPRPECREquality Act 2010
  • No privacy policy link detected
    UK GDPR: GBP 10,000 – GBP 17,500,000
  • Trackers detected but no cookie policy found
    UK GDPR: GBP 10,000 – GBP 17,500,000
  • Trackers detected but no cookie policy found
    PECR: GBP 1,000 – GBP 500,000

+2 more

Bandwidth Waste

£1.13 /mo

17933.5 MB/mo × 0.063 GBP/GB

  • Optimize transfer: save ~1.8 MB per page load
    Saves £1.13/mo

Compliance figures represent the statutory maximum fine for the most severe triggered category, capped per regulation — not the sum of per-finding penalties. Based on published regulatory fine ranges. This is not legal advice.

Compliance methodology · SEO assumptions · Bandwidth model

Your performance is already good — improvements may show diminishing returns

Unique monthly visitors from your analytics

Purchases, signups, or key actions

Optional — for revenue estimation

additional conversions/month

more engaged visitors from reduced bounce

potential monthly revenue
Current bounce (est.)
After fixes (est.)
Estimated bounce reduction

Fix 3 critical issues to capture this value

How this is calculated

Based on Google/Deloitte research ("Milliseconds Make Millions") showing a ~7% bounce rate increase per additional second of LCP above the 2.5s "Good" threshold.

Your site's LCP: → estimated after fixes.

These are estimates based on industry research — actual results vary

Bounce-rate model & assumptions

Your data stays in your browser — nothing is sent to our servers

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Lighthouse Scores

Industry-standard audits powered by Google Lighthouse.

26
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
90
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
77
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
100
SEO Measures basic SEO optimizations: meta tags, crawlability, link text, and mobile friendliness.

Core Web Vitals

Key metrics that affect user experience.

First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.

7.91 s

Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.

16.79 s

Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.

9.94 s

Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.

0.017

Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.

11.10 s

Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.

40.98 s

Detailed Report

Audit breakdown by category with detailed findings.

26

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

Shipping ES5 transpiled code to modern browsers wastes bytes — every user with an evergreen browser pays for compatibility you don't need.

Learn more

Most users today run browsers that natively support ES6+, async/await, optional chaining, and the rest of modern JavaScript. Transpiling to ES5 'just in case' adds 20-40% to your bundle for no benefit. Configure your build to target a modern browserslist, or ship a differential bundle pair (modern + legacy) with the module/nomodule pattern.

Source: Google web.dev / Lighthouse

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/e488cdb0-e7cb-4d91-9648-60d437d8e491-web.js900.0 s155.3 KiB
prebid.the-ozone-project.com/hw2/builds/ozwrap_pbjs.js14400.0 s187.4 KiB
ichef.bbci.co.uk/images/ic/raw/p0m5nxgs.jpg86400.0 s297.2 KiB
/scripts/64ca3dfd44dd68a629e2e51a27e7ccd960974b5961e4ca28...3600.0 s123.5 KiB
cdn.optimizely.com/public/4621041136/s/bbcx_prod.js120.0 s98.9 KiB
/scripts/727d9b43a076aa925788e8b215b1d39a710cbe7ace5268ab...3600.0 s116.0 KiB
cdn.tinypass.com/api/tinypass.min.js14400.0 s132.6 KiB
buy-eu.piano.io/widget/dist/checkout/css/checkout.bundle.1.1.css14400.0 s101.9 KiB
browser.covatic.io/sdk/v1/latest.js0.0 ms66.0 KiB
/pagead/managed/js/activeview/current/ufs_web_display.js3600.0 s73.1 KiB
emp.bbci.co.uk/emp/bump-4/bump-4.js300.0 s40.3 KiB
cdn.privacy-mgmt.com/unified/wrapperMessagingWithoutDetection.js3600.0 s42.5 KiB
cdn.cxense.com/cx.js3600.0 s38.1 KiB
cdn.cxense.com/cx.js3600.0 s38.1 KiB
pub.doubleverify.com/dvtag/29028254/DV1298722/pub.js900.0 s33.6 KiB
uk-script.dotmetrics.net/Scripts/script.js?v=3620.0 ms28.4 KiB
gn-web-assets.api.bbc.com/ngas/latest/dotcom-ads.js360.0 s29.9 KiB
gn-web-assets.api.bbc.com/ngas/latest/dotcom-bootstrap.js360.0 s22.3 KiB
pagead2.googlesyndication.com/pagead/js/rum.js3600.0 s25.1 KiB
securepubads.g.doubleclick.net/pagead/js/rum.js3600.0 s25.1 KiB
/_sam/H4sIAAAAAAAA_62YS4_bOAyA_1BnjGYve20zu9MCWyBo2l4XtEQ...603823.0 s127.0 KiB
gn-web-assets.api.bbc.com/ngas/latest/dotcom-analytics.js360.0 s13.0 KiB
ichef.bbci.co.uk/images/ic/800x450/p0ndc93k.jpg.webp86400.0 s29.8 KiB
buy-eu.piano.io/widget/dist/checkout/css/img/Loader.gif14400.0 s15.2 KiB
cdn.undertone.com/js/ajs.js0.0 ms8.4 KiB
gn-web-assets.api.bbc.com/ngas/latest/dotcom-preroll.js360.0 s6.7 KiB
static.chartbeat.com/js/chartbeat.js86400.0 s15.9 KiB
prebid.the-ozone-project.com/hw2/OZONEBBC4784/1500000107/current/ozpb.min.js14400.0 s8.4 KiB
/ng/common/i18n/platform-translation-map_en_US.js?version...86400.0 s14.0 KiB
cdn.cxense.com/cx.cce.js3600.0 s6.8 KiB
cdn.cxense.com/ari.js3600.0 s6.3 KiB
/checkout/general/loadTranslationMap?aid=7I7hmRshpe&versi...86400.0 s10.6 KiB
/dvtp_src.js900.0 s3.8 KiB
sb.scorecardresearch.com/internal-cs/default/beacon.js86400.0 s6.7 KiB
/hw2/OZONEBBC4784/1500000107/current/customized_plugin.js14400.0 s2.3 KiB
prebid.the-ozone-project.com/hw2/OZONEBBC4784/1500000107/current/adUnits.min.js14400.0 s871 B
buy-eu.piano.io/ng/common/pn-spinner/pn-spinner.css14400.0 s722 B
/hit.gif?id=13934&url=https%3A%2F%2Fwww.bbc.com%2F&dom=ww...86400.0 s1.2 KiB
/Repo/rep.gif?ver=3.3.0&typ=pgv&rnd=mo0nzxc6fjdxmoxl&sid=...0.0 ms412 B
/image.gif?id=727d9b43a076aa925788e8b215b1d39a710cbe7ace5...0.0 ms405 B
/pagead/js/r20260414/r20110914/client/window_focus_fy2021.js1209600.0 s1.6 KiB
securepubads.g.doubleclick.net/pagead/js/rum.js3600.0 s0 B
/dvtp_src.js900.0 s0 B

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
URLTime 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

Multi-megabyte JavaScript bundles delay every interactive feature on the page.

Learn more

This is the Lighthouse audit fired when too much JS is shipped relative to what executes. The fix isn't a config flag — it requires bundle analysis (webpack-bundle-analyzer, rollup-plugin-visualizer), splitting routes into chunks, lazy-loading off-screen components, and removing unused dependencies. Fundamentally different from minification: minifying reduces byte count, this reduces what's downloaded at all.

Source: Google web.dev / Lighthouse

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
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

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
URLTransfer SizeEst Savings
cdn.undertone.com/js/ajs.js8.0 KiB4.0 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
90

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.
77

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 / WarningSource
Topics
SharedStorage

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
Failed to load resource: the server responded with a status of 404 ()
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`

Lighthouse Scores

Industry-standard audits powered by Google Lighthouse. — Desktop

40
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
95
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
77
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
100
SEO Measures basic SEO optimizations: meta tags, crawlability, link text, and mobile friendliness.

Core Web Vitals

Key metrics that affect user experience. — Desktop

First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.

1.11 s

Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.

3.62 s

Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.

1.72 s

Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.

0.020

Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.

3.94 s

Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.

9.88 s

Detailed Report

Audit breakdown by category with detailed findings.

40

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

Shipping ES5 transpiled code to modern browsers wastes bytes — every user with an evergreen browser pays for compatibility you don't need.

Learn more

Most users today run browsers that natively support ES6+, async/await, optional chaining, and the rest of modern JavaScript. Transpiling to ES5 'just in case' adds 20-40% to your bundle for no benefit. Configure your build to target a modern browserslist, or ship a differential bundle pair (modern + legacy) with the module/nomodule pattern.

Source: Google web.dev / Lighthouse

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:7.977 source:map[column:126306 line:1 type:source-location url:https://cdn.tinypass.com/api/tinypass.min.js 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:1.162 source:map[column:33416 line:0 type:source-location url:https://cdn.tinypass.com/api/tinypass.min.js urlProvider:network]] map[reflowTime:6.166 source:map[column:326247 line:0 type:source-location url:https://cdn.tinypass.com/api/tinypass.min.js urlProvider:network]] map[reflowTime:16.265 source:map[type:text value:[unattributed]]] map[reflowTime:0.294 source:map[column:88249 line:1 type:source-location url:https://pub.doubleverify.com/dvtag/29028254/DV1298722/pub.js urlProvider:network]] map[reflowTime:0.213 source:map[column:57 line:24 type:source-location url:https://static.chartbeat.com/js/chartbeat.js urlProvider:network]] map[reflowTime:0.744 source:map[column:236656 line:18 type:source-location url:https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604100101/pubads_impl.js urlProvider:network]] map[reflowTime:0.443 source:map[column:48559 line:18 type:source-location url:https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604100101/pubads_impl.js urlProvider:network]] map[reflowTime:0.145 source:map[column:123 line:23 type:source-location url:https://static.chartbeat.com/js/chartbeat.js urlProvider:network]] map[reflowTime:6.205 source:map[column:33383 line:0 type:source-location url:https://cdn.tinypass.com/api/tinypass.min.js urlProvider:network]] map[reflowTime:8.696 source:map[column:296418 line:0 type:source-location url:https://cdn.tinypass.com/api/tinypass.min.js 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
Trump's rift with Pope is playing out in public - it's costing him valuable sup… div > a.sc-8a623a54-0 > div.sc-548b08f-1 > div.sc-548b08f-2
/ace/standard/960/cpsprodpb/d547/live/f5a971b0-34df-11f1-...102.9 KiB94.7 KiB
span#7198658129138543481580 > div#google_image_div > a#aw0 > img.img_ad span#7198658129138543481580 > div#google_image_div > a#aw0 > img.img_ad
tpc.googlesyndication.com/simgad/5622582283101038163128.9 KiB89.4 KiB
Iranian women walk past a police officer standing guard on a street, amid a cea… div.sc-225578b-0 > div.sc-d8331fdf-4 > div.sc-d8331fdf-2 > div.sc-d8331fdf-5
/ace/standard/960/cpsprodpb/c435/live/63c69cf0-38db-11f1-...88.6 KiB83.4 KiB
Cargo ships in the Gulf, near the Strait of Hormuz, as seen from northern Ras a… div.sc-329e5f2b-1 > div.sc-329e5f2b-3 > div.sc-329e5f2b-4 > div.sc-5340b511-1
/ace/standard/960/cpsprodpb/f80c/live/f5a34f20-2ea8-11f1-...81.2 KiB73.3 KiB
Business Daily, Business Daily, Iran’s economy: Counting the cost of war a.sc-8a623a54-0 > div.sc-d2483551-0 > div.sc-5340b511-1 > img.sc-5340b511-0
ichef.bbci.co.uk/images/ic/800x450/p0nd4cy4.jpg.webp76.8 KiB67.5 KiB
Photograph of a black macaques taking a selfie (Credit: David Slater/ Caters Ne… div.sc-8a86ca4a-1 > div.sc-8a86ca4a-2 > div.sc-5340b511-1 > img.sc-5340b511-0
ichef.bbci.co.uk/images/ic/800x450/p0ndd5q7.jpg.webp99.1 KiB64.4 KiB
The Documentary Podcast, Surviving my daughter's killing a.sc-8a623a54-0 > div.sc-d2483551-0 > div.sc-5340b511-1 > img.sc-5340b511-0
ichef.bbci.co.uk/images/ic/800x450/p0n1s8rb.jpg.webp68.2 KiB58.8 KiB
/ace/standard/960/cpsprodpb/205f/live/7e2f7c10-37dc-11f1-...50.8 KiB47.7 KiB
Cargo ships in the Gulf, near the Strait of Hormuz, as seen from northern Ras a… div > a.sc-8a623a54-0 > div.sc-329e5f2b-1 > div.sc-329e5f2b-3
/ace/standard/960/cpsprodpb/11ee/live/791b0060-379a-11f1-...49.6 KiB44.8 KiB
Analysis: Under fragile ceasefire, Iranians wonder if US deal can be done The … body > div#__next > div.app > main#bbc-main
/ace/standard/960/cpsprodpb/cfee/live/5a9a2560-3904-11f1-...60.1 KiB44.5 KiB
ichef.bbci.co.uk/images/ic/624xn/p09qmrlz.jpg.webp52.6 KiB44.4 KiB
Cargo ships in the Gulf, near the Strait of Hormuz, as seen from northern Ras a… a.sc-8a623a54-0 > div.sc-329e5f2b-1 > div.sc-329e5f2b-3 > div.sc-329e5f2b-4
/ace/standard/960/cpsprodpb/bcbb/live/83ece930-0db1-11f1-...46.5 KiB42.0 KiB
Analysis: Under fragile ceasefire, Iranians wonder if US deal can be done The … div.sc-82b3c53b-0 > div.sc-225578b-0 > div.sc-d8331fdf-4 > div.sc-d8331fdf-2
/ace/standard/960/cpsprodpb/3a2d/live/08e71260-38ea-11f1-...43.4 KiB40.7 KiB
head > link head > link
/ace/standard/960/cpsprodpb/495f/live/23e2cf10-3911-11f1-...40.5 KiB38.0 KiB
body > iframe body > iframe
/ace/standard/960/cpsprodpb/5066/live/b42183c0-3815-11f1-...40.4 KiB37.9 KiB
Is the US blockade of Iran working? BBC Verify has been looking into whether t… div.sc-225578b-0 > div > a.sc-8a623a54-0 > div.sc-329e5f2b-1
/ace/standard/960/cpsprodpb/f6d9/live/9a1e1650-37d9-11f1-...62.8 KiB36.9 KiB
Witness History, Witness History, The assassination of Thomas Sankara a.sc-8a623a54-0 > div.sc-d2483551-0 > div.sc-5340b511-1 > img.sc-5340b511-0
ichef.bbci.co.uk/images/ic/800x450/p0nb27h8.jpg.webp46.3 KiB36.9 KiB
Analysis: Under fragile ceasefire, Iranians wonder if US deal can be done div.sc-d8331fdf-6 > div > a.sc-8a623a54-0 > div.sc-feaf8701-1
/ace/standard/960/cpsprodpb/54df/live/20eda860-38b8-11f1-...36.0 KiB33.8 KiB
The Documentary Podcast, Pakistan: Hospitals putting children at risk of HIV a.sc-8a623a54-0 > div.sc-d2483551-0 > div.sc-5340b511-1 > img.sc-5340b511-0
ichef.bbci.co.uk/images/ic/800x450/p0nc7sb0.jpg.webp42.8 KiB33.4 KiB
div.sc-329e5f2b-1 > div.sc-329e5f2b-3 > div.sc-329e5f2b-4 > div.sc-3430e63c-0 div.sc-329e5f2b-1 > div.sc-329e5f2b-3 > div.sc-329e5f2b-4 > div.sc-3430e63c-0
/ace/standard/960/cpsprodpb/3e01/live/c67a01f0-bc8d-11ef-...36.9 KiB33.3 KiB
Analysis: Under fragile ceasefire, Iranians wonder if US deal can be done The … div.sc-cd6075cf-0 > div.sc-82b3c53b-0 > div.sc-225578b-0 > div.sc-d8331fdf-4
/ace/standard/960/cpsprodpb/a128/live/ee5bcf20-38e0-11f1-...27.1 KiB25.4 KiB
Trump's rift with Pope is playing out in public - it's costing him valuable sup… div.sc-225578b-0 > div > a.sc-8a623a54-0 > div.sc-548b08f-1
/ace/standard/960/cpsprodpb/36c5/live/6e6dbf30-34e4-11f1-...28.2 KiB25.4 KiB
Business Daily, Business Daily, Reinventing Kodak a.sc-8a623a54-0 > div.sc-d2483551-0 > div.sc-5340b511-1 > img.sc-5340b511-0
ichef.bbci.co.uk/images/ic/800x450/p0nd8blx.jpg.webp34.8 KiB25.4 KiB
Iranian women walk past a police officer standing guard on a street, amid a cea… div.sc-d8331fdf-2 > div.sc-d8331fdf-5 > div.sc-d8331fdf-1 > div.sc-5340b511-1
/ace/standard/960/cpsprodpb/61cb/live/e212bcd0-38de-11f1-...27.0 KiB25.4 KiB
Americast, Americast, Has Trump given up on the midterms? a.sc-8a623a54-0 > div.sc-d2483551-0 > div.sc-5340b511-1 > img.sc-5340b511-0
ichef.bbci.co.uk/images/ic/800x450/p0j72y80.jpg.webp29.5 KiB21.1 KiB
/ace/standard/624/cpsprodpb/69e0/live/33a283d0-390e-11f1-...24.2 KiB20.7 KiB
Witness History, Witness History, Roddy Doyle: Paddy Clarke Ha Ha Ha a.sc-8a623a54-0 > div.sc-d2483551-0 > div.sc-5340b511-1 > img.sc-5340b511-0
ichef.bbci.co.uk/images/ic/800x450/p0n7w1vm.jpg.webp28.7 KiB20.5 KiB
body > iframe#gptm-dotcom-slot-interstitial body > iframe#gptm-dotcom-slot-interstitial
/ace/standard/624/cpsprodpb/1386/live/a6d7ac90-38be-11f1-...26.3 KiB20.2 KiB
Subscribe Sign In header#bbc-header > div.sc-643c51a4-1 > div.sc-643c51a4-6 > div.sc-5248fb9c-8
/ace/standard/624/cpsprodpb/6abd/live/1a234b70-38db-11f1-...23.5 KiB20.1 KiB
Trump's rift with Pope is playing out in public - it's costing him valuable sup… section.sc-9cd5bb24-0 > div.sc-cd6075cf-0 > div.sc-82b3c53b-0 > div.sc-cd6075cf-0
/ace/standard/624/cpsprodpb/0d5b/live/aaed77c0-3912-11f1-...22.1 KiB18.9 KiB
Global News Podcast, Three years of war in Sudan a.sc-8a623a54-0 > div.sc-d2483551-0 > div.sc-5340b511-1 > img.sc-5340b511-0
ichef.bbci.co.uk/images/ic/800x450/p0lqdxrf.jpg.webp26.3 KiB18.8 KiB
body > iframe#google_ads_top_frame body > iframe#google_ads_top_frame
/ace/standard/624/cpsprodpb/21fa/live/c6b6d430-3645-11f1-...23.7 KiB18.2 KiB
/ace/standard/624/cpsprodpb/479e/live/e202db10-34bc-11f1-...21.2 KiB18.2 KiB
The Global Story, The Global Story, Trump v Pope a.sc-8a623a54-0 > div.sc-d2483551-0 > div.sc-5340b511-1 > img.sc-5340b511-0
ichef.bbci.co.uk/images/ic/800x450/p0ndgqd6.jpg.webp25.3 KiB18.1 KiB
Watch Live Subscribe Sign In div#__next > div.app > header#bbc-header > div.sc-643c51a4-1
/ace/standard/624/cpsprodpb/3fc1/live/44170b70-38d0-11f1-...19.0 KiB16.2 KiB
Advertisement div.dotcom-ad-inner > div#dotcom-slot-interstitial > div#google_ads_iframe_/4817/bbccom/home/home/index/interstitial_0__container__ > iframe#google_ads_iframe_/4817/bbccom/home/home/index/interstitial_0
/ace/standard/624/cpsprodpb/681c/live/8a8aa950-373a-11f1-...20.6 KiB15.9 KiB
/ace/standard/624/cpsprodpb/b80a/live/cc534330-38b9-11f1-...18.5 KiB15.9 KiB
/ace/standard/624/cpsprodpb/01fb/live/ad956180-38aa-11f1-...17.8 KiB15.2 KiB
/ace/standard/624/cpsprodpb/36cf/live/c77df520-3900-11f1-...16.5 KiB14.1 KiB
div.sc-329e5f2b-3 > div.sc-329e5f2b-4 > div.sc-3430e63c-0 > div.sc-3430e63c-1 div.sc-329e5f2b-3 > div.sc-329e5f2b-4 > div.sc-3430e63c-0 > div.sc-3430e63c-1
/ace/standard/960/cpsprodpb/949c/live/b5ed0e80-3500-11f1-...22.5 KiB13.2 KiB
/ace/standard/960/cpsprodpb/4341/live/39968530-f885-11f0-...13.9 KiB12.5 KiB
/ace/standard/624/cpsprodpb/5ede/live/afdd78f0-38fb-11f1-...14.6 KiB12.5 KiB
Sign In div > a.sc-8a623a54-0 > button.sc-d2a91acf-2 > span.sc-d2a91acf-1
/ace/standard/624/cpsprodpb/8f60/live/b48b39d0-390c-11f1-...14.6 KiB12.5 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

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
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cdn.tinypass.com/api/tinypass.min.js14400.0 s132.3 KiB
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browser.covatic.io/sdk/v1/latest.js0.0 ms66.0 KiB
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ichef.bbci.co.uk/images/ic/800x450/p0ndd5q7.jpg.webp86400.0 s99.5 KiB
emp.bbci.co.uk/emp/bump-4/bump-4.js300.0 s40.3 KiB
cdn.privacy-mgmt.com/unified/wrapperMessagingWithoutDetection.js3600.0 s42.5 KiB
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cdn.cxense.com/cx.js3600.0 s38.1 KiB
cdn.cxense.com/cx.js3600.0 s38.1 KiB
pub.doubleverify.com/dvtag/29028254/DV1298722/pub.js900.0 s33.6 KiB
uk-script.dotmetrics.net/Scripts/script.js?v=3620.0 ms28.5 KiB
gn-web-assets.api.bbc.com/ngas/latest/dotcom-ads.js360.0 s29.9 KiB
ichef.bbci.co.uk/images/ic/800x450/p0n1s8rb.jpg.webp86400.0 s68.6 KiB
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ichef.bbci.co.uk/images/ic/624xn/p09qmrlz.jpg.webp86400.0 s52.9 KiB
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ichef.bbci.co.uk/images/ic/800x450/p0nc7sb0.jpg.webp86400.0 s43.1 KiB
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ichef.bbci.co.uk/images/ic/800x450/p0nd8blx.jpg.webp86400.0 s35.1 KiB
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Your first network request is the most important. Reduce its latency by avoiding redirects, ensuring a fast server response, and enabling text compression.

Why this matters

Performance issues directly impact user engagement and conversion rates.

HTTP/2 and HTTP/3 offer many benefits over HTTP/1.1, such as multiplexing. Learn more about using modern HTTP.

Why this matters

Performance issues directly impact user engagement and conversion rates.

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.

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: 203 ms
URLTime Spent
bbc.co.uk/203 ms
www.bbc.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.

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.

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: 130 ms 27.7 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

Multi-megabyte JavaScript bundles delay every interactive feature on the page.

Learn more

This is the Lighthouse audit fired when too much JS is shipped relative to what executes. The fix isn't a config flag — it requires bundle analysis (webpack-bundle-analyzer, rollup-plugin-visualizer), splitting routes into chunks, lazy-loading off-screen components, and removing unused dependencies. Fundamentally different from minification: minifying reduces byte count, this reduces what's downloaded at all.

Source: Google web.dev / Lighthouse

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
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

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
Trump and the Tech Titans div.sc-acc23e20-2 > div.sc-acc23e20-3 > div.sc-acc23e20-4 > img.sc-5340b511-0

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

Layout shift culprits
Optimize DOM size
LCP breakdown
LCP request discovery
Render blocking requests
Optimize viewport for mobile
Reduce unused CSS
User Timing marks and measures 67 user timings
Network Requests
Network Round Trip Times 50 ms
Server Backend Latencies 170 ms
Metrics
Screenshot Thumbnails
Final Screenshot
Script Treemap Data
Resources Summary
Initial server response time was short Root document took 20 ms
Avoid large layout shifts 4 layout shifts found
INP breakdown
Avoid non-composited animations
95

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
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 What do the heads of massive tech companies stand to gain … div.sc-3211a4f7-0 > div.sc-225578b-0 > div > a.sc-8a623a54-0
Football Daily UCL Debrief: Arsenal squeeze into the semis as Bayern blast past… div.sc-225578b-0 > div.sc-d2483551-4 > 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
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
`[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.
77

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 / WarningSource
Topics
SharedStorage

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
Failed to load resource: the server responded with a status of 404 ()
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=1776294738482&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`

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