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Changes

https://bbc.co.uk
Compared to previous audit · 27 weeks ago View previous audit

Madrid, Spain → New York, United Stated

These audits ran from different locations. Timing metrics (TTFB, DNS, TLS) may reflect network path differences rather than site changes.

44
New issues
25
Resolved
27
score changes
CategoryPreviousCurrentChange
CompositeC (79)B (83) +4.000
PerformanceC (74)B (80) +6.000
SecurityD (69)B (82) +13.000
AccessibilityB (80)C (79) -1.000
SEOA (90)A (93) +3.000
InfrastructureA (94)A (91) -3.000
ComplianceB (84)C (79) -5.000
ContentA+ (98)B (86) -12.000
SustainabilityD (69)C (78) +9.000
MetricPreviousCurrentChange
Performance 2600600 -2000
Accessibility 90009500 +500
Best Practices 770010000 +2300
SEO 1000010000—
PWA 00—
Desktop Performance 40003500 -500
Desktop Accessibility 95009600 +100
Desktop Best Practices 770010000 +2300
Desktop SEO 1000010000—
FCP 7.91 s4.17 s -3.74 s
LCP 16.79 s18.20 s +1.41 s
TBT 9.94 s4.02 s -5.91 s
CLS 0.0170.819 +0.802
Desktop FCP 1.11 s1.94 s +832 ms
Desktop LCP 3.62 s3.59 s—
Desktop TBT 1.72 s369 ms -1.35 s
Desktop CLS 0.0200.364 +0.344
TTFB †12 ms35 ms +23 ms
DNS †5 ms28 ms +22 ms
TLS †4 ms5 ms +1 ms
Connect †1 ms1 ms -0 ms
Total †13 ms35 ms +23 ms

† Timing metrics may vary by worker location and do not necessarily indicate site changes.

Projected vs. Actual

Previous
C 79
Projected
A 96
Actual
B 83
Fell short of projection
25 issues resolved since last audit
57 issues remaining
Resolving remaining issues could reach A+

Estimate — actual results may vary

CRITICAL 196 of 200 links are healthy content
CRITICAL 1 button(s) with no accessible text accessibility
CRITICAL 67 image(s) missing alt attribute accessibility
CRITICAL No H1 heading found accessibility
CRITICAL 67 image-in-link without alt text accessibility
WARNING https://static.files.bbci.co.uk/core/bundle-portra...: 45 KB unused (89%) performance
WARNING External script from gn-web-assets.api.bbc.com lacks integrity attribute security
WARNING 3 of 4 <nav> elements are unlabeled accessibility
WARNING Missing og:image content
WARNING 2 above-fold image(s) marked loading="lazy" (LCP anti-pattern) content
WARNING https://static.files.bbci.co.uk/core/bundle-compon...: 45 KB unused (33%) performance
WARNING 15 render-blocking <script src> tag(s) without async/defer performance
WARNING Broken link: https://securepubads.g.doubleclick.net content
WARNING Broken link: https://bbc.gscontxt.net content
WARNING https://static.files.bbci.co.uk/core/bundle-compon...: 48 KB unused (84%) performance
WARNING External script from cdn.privacy-mgmt.com lacks integrity attribute security
WARNING External script from mybbc-analytics.files.bbci.co.uk lacks integrity attribute security
WARNING 1 link(s) open in new tab without warning accessibility
WARNING External script from uk-script.dotmetrics.net lacks integrity attribute security
WARNING Page weighs 9.8 MB (3.6 MB transferred) performance
WARNING HSTS is enabled but missing includeSubDomains security
WARNING https://mybbc-analytics.files.bbci.co.uk/echo-clie...: 57 KB unused (49%) performance
WARNING Page weight 3.6 MB exceeds 1 MB target by 2.6 MB performance
WARNING 137 images missing explicit width/height content
WARNING 227 HTTP requests — consider bundling or reducing performance
WARNING 4 `@font-face` rule(s) without `font-display` -- causes FOIT performance
WARNING 67 images missing alt text content
WARNING SRI adoption: 0/80 third-party resources protected (0%) security
WARNING External script from cdn.tinypass.com lacks integrity attribute security
WARNING External script from emp.bbci.co.uk lacks integrity attribute security
WARNING https://static.files.bbci.co.uk/core/bundle-simple...: 90 KB unused (65%) performance
WARNING 0.85g CO2 — above the median website (0.60g) sustainability
WARNING Broken link: https://api.permutive.app content
WARNING External script from static.bbci.co.uk lacks integrity attribute security
WARNING Canonical does not match final URL (https://www.bbc.co.uk/) seo
WARNING External script from static.chartbeat.com lacks integrity attribute security
WARNING <iframe> missing title attribute (src="") accessibility
WARNING Third-party code accounts for 100% of page weight (3.6 MiB of 3.6 MiB) performance
WARNING Broken link: https://pagead2.googlesyndication.com content
WARNING JavaScript is 2.0 MB — consider code splitting or lazy loading performance
WARNING 226 third-party resources (100% of weight) performance
WARNING No name or short_name accessibility
WARNING 1 advertising/retargeting trackers detected compliance
WARNING External script from cdn.optimizely.com lacks integrity attribute security
CRITICAL Page weighs 16.8 MB (5.7 MB transferred) performance
CRITICAL og:image is not reachable content
WARNING Heading level skipped: H1 → H3 (missing H2) accessibility
WARNING No meta description tag found seo
WARNING JavaScript is 3.2 MB — consider code splitting or lazy loading performance
WARNING Title is only 10 characters — consider expanding seo
WARNING 1.61g CO2 — above the median website (0.60g) sustainability
WARNING https://prebid.the-ozone-project.com/hw2/builds/oz...: 140 KB unused (75%) performance
WARNING https://static.files.bbci.co.uk/core/bundle-compon...: 67 KB unused (49%) performance
WARNING Third-party code accounts for 100% of page weight (5.7 MiB of 5.7 MiB) performance
WARNING is missing width/height — may cause layout shift performance
WARNING 306 third-party resources (100% of weight) performance
WARNING HSTS is missing includeSubDomains security
WARNING Page weight 5.7 MB exceeds 1 MB target by 4.7 MB performance
WARNING Images are 1.1 MB — compress or use modern formats performance
WARNING https://static.files.bbci.co.uk/core/bundle-defaul...: 76 KB unused (54%) performance
WARNING External script from sb.scorecardresearch.com lacks integrity attribute security
WARNING 3 heading(s) are over 120 characters -- likely a misformatted paragraph accessibility
WARNING 307 HTTP requests — consider bundling or reducing performance
WARNING https://static.files.bbci.co.uk/core/bundle-vendor...: 151 KB unused (45%) performance
WARNING 1.61g CO2 per page view sustainability
WARNING External script from nav.files.bbci.co.uk lacks integrity attribute security
WARNING Skip link target(s) don't exist on page: #main-heading accessibility
WARNING https://securepubads.g.doubleclick.net/pagead/mana...: 87 KB unused (47%) performance
WARNING 96% of images have non-descriptive filenames seo
CRITICAL Both www and non-www versions serve content infrastructure
CRITICAL Content-Security-Policy header is missing security
WARNING Registrar lock is NOT enabled infrastructure
WARNING X-Frame-Options header is missing security
WARNING No Permissions-Policy header security
WARNING GDPR Article 13 disclosure coverage: 0 / 8 categories compliance
WARNING Cross-Origin-Embedder-Policy header is missing security
WARNING Referrer-Policy header is missing security
WARNING X-Content-Type-Options header is missing security
WARNING External script from static.files.bbci.co.uk lacks integrity attribute security
WARNING Main HTML cached for 10080 minutes -- risks stale auth / SPA state performance
WARNING Cross-Origin-Opener-Policy header is missing security
WARNING Permissions-Policy header is missing security

HTTP headers unchanged

10 headers unchanged

+ Next.js JavaScript frameworks v16.2.6
+ React JavaScript frameworks
+ RxJS JavaScript frameworks
+ Webpack Miscellaneous
+ core-js JavaScript libraries v3.10.2
+ mParticle Customer data platform
+ Google Tag Manager Tag managers
+ Turbopack Development
+ styled-components JavaScript frameworks v6.1.19
+ Bootstrap UI frameworks
+ Chartbeat Analytics
+ Cxense Personalisation
+ Piano Personalisation
+ Cart Functionality Ecommerce
+ Fourthwall Ecommerce vweb-3.25.0-1
+ Integral Ad Science Advertising
+ Optimizely A/B Testing
− Loadable-Components JavaScript libraries
− Emotion JavaScript frameworks
− Priority Hints Performance
− comScore Analytics
RequireJS v → v2.0.5

7 technologies unchanged

Looking ahead

+15 pts
B (83) Could reach A+ (98)
Accessibility +21Performance +20Security +18Content +14Infrastructure +9Compliance +8SEO +4Sustainability +4

Estimate — actual results may vary (57 issues to fix)

Website improvement report — Bbc.co

April 15, 2026 → October 23, 2026

C B 79 → 83 +4 pts

25

Resolved

44

New issues

13

Still remaining

Financial summary

Investment delivered

£5,800 in development time

Investment remaining

£7,394 to complete the remaining items

Ongoing risk

£1/month in ongoing exposure

Figures are estimates based on local developer hourly rate, industry CPC, and regulatory fine ranges.

Performance by category

MetricBeforeAfterChange
Overall score79 (C)83 (B)+4
Performance74 (C)80 (B)+6
Security69 (D)82 (B)+13
Accessibility80 (B)79 (C)-1
SEO90 (A)93 (A)+3
Infrastructure94 (A)91 (A)-3
Compliance84 (B)79 (C)-5
Content98 (A+)86 (B)-12
Sustainability69 (D)78 (C)+9

Resolved (25)

  • Heading level skipped: H1 → H3 (missing H2) (Accessibility)

    → Improved usability for assistive technology users

  • No meta description tag found (SEO)

    → Better search engine visibility

  • JavaScript is 3.2 MB — consider code splitting or lazy loading (Performance)

    → Page loads faster for users

  • Title is only 10 characters — consider expanding (SEO)

    → Better search engine visibility

  • 1.61g CO2 — above the median website (0.60g) (Sustainability)

    → Lower carbon footprint per page view

  • https://prebid.the-ozone-project.com/hw2/builds/oz...: 140 KB unused (75%) (Performance)

    → Page loads faster for users

  • https://static.files.bbci.co.uk/core/bundle-compon...: 67 KB unused (49%) (Performance)

    → Page loads faster for users

  • Third-party code accounts for 100% of page weight (5.7 MiB of 5.7 MiB) (Performance)

    → Page loads faster for users

  • is missing width/height — may cause layout shift (Performance)

    → Page loads faster for users

  • 306 third-party resources (100% of weight) (Performance)

    → Page loads faster for users

  • HSTS is missing includeSubDomains (Security)

    → Reduced attack surface for visitors

  • Page weight 5.7 MB exceeds 1 MB target by 4.7 MB (Performance)

    → Page loads faster for users

  • Page weighs 16.8 MB (5.7 MB transferred) (Performance)

    → Page loads faster for users

  • Images are 1.1 MB — compress or use modern formats (Performance)

    → Page loads faster for users

  • https://static.files.bbci.co.uk/core/bundle-defaul...: 76 KB unused (54%) (Performance)

    → Page loads faster for users

…and 10 more resolved issue(s)

Recommended next steps (57)

  • Sprint 1

    196 of 200 links are healthy (Content)

  • Sprint 1

    1 button(s) with no accessible text (Accessibility)

  • Sprint 2

    67 image(s) missing alt attribute (Accessibility)

  • Sprint 1

    No H1 heading found (Accessibility)

  • Sprint 1

    67 image-in-link without alt text (Accessibility)

  • Sprint 1

    Both www and non-www versions serve content (Infrastructure)

  • Sprint 2

    Content-Security-Policy header is missing (Security)

  • Sprint 3

    https://static.files.bbci.co.uk/core/bundle-portra...: 45 KB unused (89%) (Performance)

  • Sprint 1

    External script from gn-web-assets.api.bbc.com lacks integrity attribute (Security)

  • Sprint 1

    3 of 4 <nav> elements are unlabeled (Accessibility)

  • Sprint 1

    Missing og:image (Content)

  • Sprint 1

    2 above-fold image(s) marked loading="lazy" (LCP anti-pattern) (Content)

  • Sprint 3

    https://static.files.bbci.co.uk/core/bundle-compon...: 45 KB unused (33%) (Performance)

  • Sprint 2

    15 render-blocking <script src> tag(s) without async/defer (Performance)

  • Sprint 1

    Broken link: https://securepubads.g.doubleclick.net (Content)

…and 42 more recommended item(s)

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