# BeaverCheck Audit Report — https://tfl.gov.uk **Date:** April 21, 2026 **URL:** https://tfl.gov.uk **Overall Grade:** C (76/100) **Report:** https://beavercheck.com/results/c05d660b-8f78-485c-bc6b-2318d0237699 ## Top Findings 1. **[CRITICAL]** Content-Security-Policy header is missing — Security > Security Headers 2. **[CRITICAL]** No Content-Security-Policy header found — Security > Content Security Policy 3. **[CRITICAL]** 3 link(s) with no accessible text — Accessibility > Link & Button Quality 4. **[CRITICAL]** 9 control(s) without accessible label — Accessibility > Form Accessibility 5. **[WARNING]** Cross-Origin-Embedder-Policy header is missing — Security > Security Headers --- ## Lighthouse Scores | Category | Score | |----------|-------| | Performance | 39 | | Accessibility | 97 | | Best Practices | 96 | | SEO | 77 | --- ## Security ### Security Headers (F — 35/100) *3 of 10 headers properly configured* - **[WARNING]** HSTS is missing includeSubDomains — Without includeSubDomains, subdomains can still be accessed over HTTP. - **[WARNING]** X-Content-Type-Options header is missing — This header prevents MIME-type sniffing, which can lead to XSS attacks. Set it to 'nosniff'. - **[PASS]** X-Frame-Options is properly configured - **[WARNING]** Referrer-Policy header is missing — Controls how much referrer information is sent with requests. Set to 'strict-origin-when-cross-origin' or stricter. - **[WARNING]** Permissions-Policy header is missing — Controls which browser features (camera, microphone, geolocation) are allowed. Set it to restrict unused features. - **[CRITICAL]** Content-Security-Policy header is missing — CSP is the most important header for preventing XSS attacks. See the CSP section for detailed analysis. - **[WARNING]** Cross-Origin-Opener-Policy header is missing — COOP isolates your browsing context, preventing cross-origin side-channel attacks. Set to 'same-origin'. - **[WARNING]** Cross-Origin-Embedder-Policy header is missing — COEP prevents loading cross-origin resources without explicit permission. Required for SharedArrayBuffer and high-resolution timers. - **[PASS]** X-Powered-By header is not present - **[PASS]** Server header is present without version info ### Content Security Policy (F — 0/100) *No enforcing CSP policy found* - **[CRITICAL]** No Content-Security-Policy header found — CSP is the most effective defense against XSS attacks. Add a Content-Security-Policy header to restrict resource loading. ### TLS & Certificates (A+ — 100/100) *TLS 1.3, 7 checks passed* - **[PASS]** TLS 1.3 is used - **[PASS]** Strong cipher suite is used - **[INFO]** HTTP/2 is not negotiated — HTTP/2 provides multiplexing and header compression for better performance. - **[PASS]** Certificate is valid (expires in 75 days) - **[PASS]** Certificate chain has 3 certificates - **[PASS]** Certificate uses modern signature algorithm - **[PASS]** Certificate covers 7 domain(s) - **[PASS]** Certificate is issued by a trusted CA ### Cookie Security (A+ — 100/100) *No cookies set — no cookie security risks* - **[PASS]** No cookies set — no cookie security risks --- ## Advanced Security ### Subresource Integrity (F — 20/100) *0 of 12 external resources have SRI* - **[WARNING]** External script from push-api-ganges.tfl.gov.uk lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from consent.cookiebot.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from consent.cookiebot.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from consent.cookiebot.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from assets.adobedtm.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from translate.google.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from assets.adobedtm.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from assets.adobedtm.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from assets.adobedtm.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External link from www.gstatic.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from translate.googleapis.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from assets.adobedtm.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. ### JS Library Vulnerabilities (A+ — 100/100) *No known vulnerabilities* - **[PASS]** No known JavaScript library vulnerabilities detected ### Information Leakage (A+ — 100/100) *No exposures* - **[INFO]** No security.txt found — Consider adding a security.txt at /.well-known/security.txt. - **[PASS]** No sensitive files exposed ### Email Security (D — 50/100) *DMARC: none* - **[WARNING]** DMARC policy is none — monitoring only — This only monitors, it doesn't block spoofed emails. Change to p=quarantine or p=reject. ### Permissions-Policy (D — 40/100) *No header set* - **[WARNING]** No Permissions-Policy header — Consider adding a Permissions-Policy header to restrict browser feature access from embedded content. ### CORS Configuration (A — 90/100) *Origin: https://tfl.gov.uk* - **[PASS]** CORS restricted to specific origin(s) - **[INFO]** Origin reflection not testable with a single request — Some servers reflect the request Origin header. This requires manual testing with a crafted Origin header. --- ## Performance ### Page Weight Budget (C — 56/100) *2.0 MB transferred, 49 requests* - **[INFO]** Page weighs 6.1 MB (2.0 MB transferred) - **[WARNING]** JavaScript is 1.0 MB — consider code splitting or lazy loading — Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts. - **[INFO]** CSS is 299 KB — consider purging unused styles — Remove unused CSS rules with tools like PurgeCSS to reduce stylesheet size. - **[PASS]** 49 HTTP requests - **[INFO]** Estimated 0.42 g CO2 per page load ### Third-Party Impact (A — 85/100) *31% third-party, 0 ms blocking* - **[INFO]** Third-party code accounts for 31% of page weight (633.5 KiB of 2.0 MiB) - **[PASS]** Third-party blocking time is low (0 ms) ### Text Compression (A+ — 100/100) *All text resources are compressed* - **[PASS]** All text resources are compressed ### Image Optimization (C — 65/100) *11 images, 0 KB saveable* - **[WARNING]** https://tfl.gov.uk/cdn/static/cms/images/promos/tf... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS. - **[WARNING]** https://tfl.gov.uk/static/cms/images/MoL.png is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS. ### JS Execution Cost (F — 20/100) *6337ms total JS execution* - **[WARNING]** https://consent.cookiebot.com/uc.js: 4442ms CPU time - **[WARNING]** https://tfl.gov.uk/cdn/static/scripts/core/min/glo...: 738ms CPU time - **[WARNING]** https://tfl.gov.uk/: 482ms CPU time - **[INFO]** Unattributable: 205ms CPU time - **[INFO]** https://consent.cookiebot.com/e601acc6-2e6f-4bed-a...: 146ms CPU time - **[WARNING]** Third-party scripts: 4929ms (78% of total) ### Font Loading (A+ — 100/100) *4 fonts (97 KB)* - **[INFO]** 4 font(s) use font-display: swap (FOUT risk but functional) ### JS Bundles (F — 30/100) *19 scripts, 461 KB unused* - **[WARNING]** https://tfl.gov.uk/cdn/static/scripts/core/min/glo...: 244 KB unused (78%) — Consider code splitting or tree shaking to reduce unused code. - **[WARNING]** https://tfl.gov.uk/cdn/static/scripts/core/min/glo...: unminified — 111 KB could be saved - **[WARNING]** https://translate.googleapis.com/_/translate_http/...: 109 KB unused (92%) — Consider code splitting or tree shaking to reduce unused code. - **[WARNING]** https://consent.cookiebot.com/Framework/IAB/consen...: 64 KB unused (73%) — Consider code splitting or tree shaking to reduce unused code. - **[WARNING]** https://consent.cookiebot.com/uc.js: 22 KB unused (63%) — Consider code splitting or tree shaking to reduce unused code. - **[WARNING]** https://consent.cookiebot.com/e601acc6-2e6f-4bed-a...: 21 KB unused (7%) — Consider code splitting or tree shaking to reduce unused code. - **[INFO]** Total unused JavaScript: 461 KB ### Resource Caching (A+ — 100/100) *All resources properly cached* - **[PASS]** No caching issues found ### Critical Rendering Path (A+ — 100/100) *No render-blocking resources* - **[PASS]** No render-blocking resources detected ### Resource Hints (A+ — 100/100) *No optimization needed* - **[PASS]** No resource hint issues ### Page Weight Inventory (D — 45/100) *49 resources · 2.0 MB · 461 KB savings available* - **[WARNING]** Page weight 1.0 MB over 1MB target - **[INFO]** ~461 KB of savings available - **[INFO]** 14 third-party resources (31% of weight) - **[INFO]** 3 resources over 200KB ### Render-Blocking Resources (A+ — 100/100) *No render-blocking resources detected* - **[PASS]** No render-blocking resources detected in ### Third-Party Resources (A+ — 100/100) *No third-party resources detected* --- ## Content Quality ### Links (C — 73/100) *200 links checked, 194 healthy, 5 broken* - **[CRITICAL]** 194 of 200 links are healthy - **[INFO]** Long redirect chain: https://adssettings.google.com/anonymous?sig=AC... (3 hops) - **[CRITICAL]** Broken link: https://www.accurat.ai/legal/privacy-centre — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://www.accurat.ai/legal/legitimate-interest — Found in . Returns HTTP 429. - **[CRITICAL]** Broken link: https://admaxmedia.io/privacy-policy/ — Found in . Get "https://admaxmedia.io/privacy-policy/": tls: failed to verify certificate: x509: certificate signed by unknown authority - **[CRITICAL]** Broken link: https://adnuntius.com/resources/privacy-policy/ — Found in . Returns HTTP 404. - **[CRITICAL]** Broken link: https://www.adzymic.ai/privacy — Found in . Returns HTTP 404. ### Mixed Content (A+ — 100/100) *No mixed content detected — all resources use HTTPS.* - **[PASS]** No mixed content detected — all resources use HTTPS ### Open Graph (B — 80/100) *Open Graph tags are partially configured — some improvements recommended.* - **[CRITICAL]** og:image is not reachable — The og:image URL could not be fetched. Social platforms won't be able to display it. - **[INFO]** og:title is short (21 characters) — Ideal length is 25–60 characters for social sharing previews. - **[INFO]** Missing og:type — The og:type tag helps social platforms categorize the content. - **[INFO]** Missing twitter:card — Without twitter:card, Twitter falls back to Open Graph tags. Adding it gives you more control. ### Structured Data (C — 40/100) *No structured data (JSON-LD) found.* - **[INFO]** No structured data (JSON-LD) found — Adding structured data helps search engines understand your content and can enable rich results. --- ## Infrastructure ### DNS Records (A+ — 100/100) *2 A records, 32 ms lookup* - **[PASS]** Resolves to 2 IPv4 address(es) - **[INFO]** No IPv6 (AAAA) records - **[PASS]** 2 nameserver(s) configured - **[PASS]** 6 mail exchanger(s) configured - **[INFO]** CAA records not checked — CAA record lookup requires a specialized DNS resolver. This check will be available in a future update. - **[PASS]** SPF record present in TXT - **[PASS]** DNS resolution time: 32 ms ### Redirect Chain (A+ — 100/100) *No redirects — direct access* - **[PASS]** No redirects — direct access ### IPv6 Readiness (C — 60/100) *No IPv6 support* - **[INFO]** No IPv6 (AAAA) records found — IPv6 support is increasingly important for global accessibility. About 40% of internet users have IPv6 connectivity. ### Crawlability (A+ — 100/100) *robots.txt present, sitemap with 1229 URLs* - **[PASS]** robots.txt is present - **[PASS]** sitemap.xml is present - **[PASS]** sitemap.xml is valid XML - **[PASS]** sitemap.xml contains 1229 entries - **[PASS]** robots.txt references sitemap ### URL Variants (A+ — 100/100) *www/non-www, trailing slash, HTTP→HTTPS* - **[PASS]** www/non-www redirect configured correctly (preferred: non-www) - **[PASS]** HTTP correctly 301-redirects to HTTPS ### Domain Intelligence (A — 90/100) *tfl.gov.uk — via Markmonitor International Limited, 26 years, 2 months old, hosted on Cloudflare* - **[WARNING]** Domain expires in 54 days — Consider enabling auto-renewal to prevent accidental expiration. - **[INFO]** DNSSEC is not enabled — DNSSEC protects against DNS spoofing attacks. While not required, enabling DNSSEC adds an additional layer of security. Contact your DNS provider to enable it. - **[PASS]** Registrar: Markmonitor International Limited - **[WARNING]** Registrar lock is NOT enabled — The domain can be transferred without an unlock step. Enable registrar lock (clientTransferProhibited) in your registrar's control panel to protect against unauthorized or accidental transfers. - **[PASS]** Hosting: Cloudflare --- ## Compliance ### WCAG Compliance (A+ — 100/100) *No testable criteria* ### Cookie Consent & Privacy (A+ — 100/100) *CookieBot detected, privacy policy found* - **[PASS]** Privacy policy link found - **[PASS]** Terms of service link found - **[PASS]** Consent banner detected (CookieBot) - **[INFO]** This is an automated check, not legal advice — BeaverCheck detects technical indicators of consent management. This does not constitute a legal compliance assessment. Consult a privacy professional for GDPR/CCPA compliance. ### Language & i18n (A — 90/100) *Lang attribute present* - **[PASS]** attribute is present - **[PASS]** value is valid - **[INFO]** No Content-Language HTTP header - **[INFO]** Language signals are inconsistent — The attribute and Content-Language header should agree. ### Readability & Typography (A+ — 100/100) *Font sizes and tap targets checked* ### Viewport Configuration (A+ — 100/100) *Viewport properly configured* - **[PASS]** Viewport meta tag is present - **[PASS]** width=device-width is set - **[PASS]** User zooming is allowed ### Third-Party Trackers (A+ — 95/100) *7 trackers detected* - **[INFO]** 7 third-party trackers detected — Found 5 analytics, 0 advertising, 0 marketing, 2 tag manager trackers. ### Cookie & Tracker Inventory (A+ — 100/100) *0 cookies · 7 trackers · 0 pre-consent* - **[INFO]** 7 third-party tracker(s) detected on page --- ## Legal ### Legal Page Ecosystem (B — 70/100) *3 of 7 expected legal pages detected* - **[PASS]** Privacy Policy detected — Found at https://152media.com/privacy-policy/. - **[PASS]** Terms of Service detected — Found at https://www.accurat.ai/legal/privacy-centre. - **[PASS]** Cookie Policy detected — Found at https://support.bluebillywig.com/cookies/legitimate-interest-disclosure-statement/. - **[INFO]** Accessibility Statement not detected — No link matching common Accessibility Statement URL patterns or link text was found. Most websites are expected to have a Accessibility Statement, especially those collecting user data. - **[INFO]** DMCA / Copyright Notice not detected — No link matching common DMCA / Copyright Notice URL patterns or link text was found. Most websites are expected to have a DMCA / Copyright Notice, especially those collecting user data. - **[INFO]** Refund / Returns Policy not detected — No link matching common Refund / Returns Policy URL patterns or link text was found. Most websites are expected to have a Refund / Returns Policy, especially those collecting user data. - **[INFO]** Acceptable Use Policy not detected — No link matching common Acceptable Use Policy URL patterns or link text was found. Most websites are expected to have a Acceptable Use Policy, especially those collecting user data. ### Copyright Notice (C — 55/100) *No copyright notice detected* - **[INFO]** No copyright notice detected — No copyright notice detected in the page content. While not legally required in most jurisdictions (copyright exists automatically), a notice is standard practice and signals site ownership. ### Regulatory Indicators *1 regulatory indicator(s) detected* - **[INFO]** This is a technical scan, not a legal assessment — BeaverCheck detects technical indicators that may suggest regulatory relevance. This is not a compliance audit and should not be relied upon for legal decisions. Consult qualified legal counsel for compliance assessments. - **[INFO]** GDPR indicators detected (strong confidence) — Indicators suggesting GDPR may be relevant: Consent management platform detected: cookiebot.com; European TLD detected: .fr; Text mentions: gdpr; Privacy policy page found. EU General Data Protection Regulation — governs collection and processing of personal data of EU residents. ### Third-Party Data Sharing *0 third-party service(s) detected* - **[INFO]** Data inventory for transparency purposes — This inventory identifies third-party services that receive data from your site visitors. Under regulations like GDPR (Article 30), maintaining records of data processing activities is commonly considered a best practice. This automated scan provides a starting point — it may not capture all data flows. - **[INFO]** No recognized third-party data-sharing services detected — This page does not appear to load external tracking, analytics, or advertising scripts. ### Compliance Badges (B — 70/100) *1 compliance badge(s) detected* - **[PASS]** TRUSTe / TrustArc badge detected — Found via link URL: 'https://www.trustarc.com/privacy-policy/'. Note: the presence of a badge does not verify the certification is current or valid. --- ## Availability ### CDN & Delivery (A — 85/100) *Cloudflare (DYNAMIC)* - **[PASS]** Site is served via Cloudflare CDN (edge: CDG) - **[INFO]** CDN cache status: DYNAMIC ### HTTP Caching (A+ — 95/100) *max-age=60 (1 minute)* - **[PASS]** Cache-Control header is set - **[PASS]** Effective TTL: 1 minute (max-age=60) - **[PASS]** CDN TTL: 1 minute (s-maxage=60) - **[INFO]** No ETag or Last-Modified header — Conditional requests (304 Not Modified) are not possible without validators. ### Transport Security (A — 90/100) *HTTP/3, HSTS, and TLS version analysis* - **[INFO]** HTTP/3 (QUIC) not advertised — HTTP/3 eliminates head-of-line blocking. If your CDN supports it, consider enabling it. - **[PASS]** HSTS enabled (base policy) - **[INFO]** HSTS missing includeSubDomains — Without includeSubDomains, HSTS only protects the exact domain. - **[PASS]** TLS 1.3 in use (fastest handshake, 1-RTT) --- ## Accessibility ### Landmark Structure (A — 85/100) *18 landmarks* - **[PASS]**
landmark present - **[PASS]** 9