# BeaverCheck Audit Report — https://www.cncf.io **Date:** April 7, 2026 **URL:** https://www.cncf.io **Overall Grade:** B (80/100) **Report:** https://beavercheck.com/results/ce52a069-b107-d68d-0ddb-02fdd75dd461 ## Top Findings 1. **[CRITICAL]** 1 control(s) without accessible label — Accessibility > Form Accessibility 2. **[CRITICAL]** 3 image-only link(s) without alt text — Accessibility > Link & Button Quality 3. **[CRITICAL]** No
landmark found — Accessibility > Landmark Structure 4. **[WARNING]** 110 HTTP requests — consider bundling or reducing — Performance > Page Weight Budget 5. **[WARNING]** Cross-Origin-Embedder-Policy header is missing — Security > Security Headers --- ## Lighthouse Scores | Category | Score | |----------|-------| | Performance | 79 | | Accessibility | 95 | | Best Practices | 100 | | SEO | 100 | --- ## Security ### Security Headers (C — 55/100) *5 of 10 headers properly configured* - **[PASS]** Strict-Transport-Security is properly configured - **[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. - **[PASS]** Content-Security-Policy is present - **[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 (B — 70/100) *2 of 10 CSP checks passed* - **[INFO]** Raw CSP policy - **[WARNING]** default-src directive is missing — default-src provides a fallback for other directives. Set it to restrict default resource loading. - **[INFO]** No script-src or default-src to check for 'unsafe-inline' - **[INFO]** No script-src or default-src to check for 'unsafe-eval' - **[INFO]** No script-src or default-src to check for wildcard - **[PASS]** object-src falls back to default-src - **[WARNING]** base-uri directive is missing — Without base-uri, attackers can inject a tag to hijack relative URLs. Set it to 'self' or 'none'. - **[PASS]** frame-ancestors directive is set - **[WARNING]** form-action directive is missing — form-action restricts where forms can submit data, preventing form hijacking. - **[INFO]** upgrade-insecure-requests is not set — This directive upgrades HTTP resources to HTTPS automatically, preventing mixed content. ### 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 83 days) - **[PASS]** Certificate chain has 2 certificates - **[PASS]** Certificate uses modern signature algorithm - **[PASS]** Certificate covers 2 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 2 external resources have SRI* - **[WARNING]** External script from lfx-segment.platform.linuxfoundation.org lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from browser-update.org 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 (F — 30/100) *No DMARC* - **[WARNING]** No DMARC record found — Without DMARC, email receivers have no policy for handling authentication failures. ### 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 (B — 80/100) *No CORS headers* - **[PASS]** No CORS headers present — secure default --- ## Performance ### Page Weight Budget (F — 7/100) *3.7 MB transferred, 110 requests* - **[WARNING]** Page weighs 4.5 MB (3.7 MB transferred) - **[WARNING]** 110 HTTP requests — consider bundling or reducing — Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests. - **[INFO]** Estimated 0.77 g CO2 per page load ### Third-Party Impact (A+ — 100/100) *9% third-party, 0 ms blocking* - **[INFO]** Third-party code accounts for 9% of page weight (328.5 KiB of 3.7 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 — 60/100) *82 images, 0 KB saveable* - **[WARNING]** https://www.cncf.io/wp-content/uploads/2024/11/CNC... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS. - **[WARNING]** https://www.cncf.io/wp-content/uploads/2026/02/CNC... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS. - **[WARNING]** https://www.cncf.io/wp-content/themes/cncf-twenty-... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS. - **[WARNING]** https://www.cncf.io/wp-content/uploads/2026/02/CNC... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS. - **[WARNING]** https://www.cncf.io/wp-content/uploads/2026/02/CNC... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS. ### JS Execution Cost (D — 40/100) *2949ms total JS execution* - **[WARNING]** Unattributable: 1236ms CPU time - **[WARNING]** https://www.cncf.io/: 1084ms CPU time - **[WARNING]** https://www.cncf.io/wp/wp-includes/js/jquery/jquer...: 420ms CPU time - **[INFO]** https://lfx-segment.platform.linuxfoundation.org/l...: 115ms CPU time - **[INFO]** https://js-agent.newrelic.com/nr-rum-1.312.1.min.j...: 93ms CPU time - **[INFO]** Third-party scripts: 1444ms (49% of total) ### Font Loading (A+ — 100/100) *4 fonts (68 KB)* - **[INFO]** 4 font(s) use font-display: swap (FOUT risk but functional) ### JS Bundles (A+ — 100/100) *13 scripts, 27 KB unused* - **[WARNING]** https://lfx-segment.platform.linuxfoundation.org/l...: 27 KB unused (34%) — Consider code splitting or tree shaking to reduce unused code. - **[INFO]** Total unused JavaScript: 27 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) *16 hints, 0 missing preconnects* - **[PASS]** Page uses 16 resource hint(s) ### 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 (B — 80/100) *200 links checked, 196 healthy, 4 broken* - **[CRITICAL]** 196 of 200 links are healthy - **[WARNING]** Broken link: https://js.hs-scripts.com — Found in . Returns HTTP 404. - **[WARNING]** Broken link: https://js.hs-analytics.net — Found in . Returns HTTP 400. - **[WARNING]** Broken link: https://www.googletagmanager.com — Found in . Returns HTTP 404. - **[WARNING]** Broken link: https://www.gstatic.com — 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 (A — 90/100) *Open Graph tags are well configured for social sharing.* - **[CRITICAL]** og:image is not reachable — The og:image URL could not be fetched. Social platforms won't be able to display it. ### Structured Data (B — 80/100) *1 JSON-LD block(s) found — some improvements recommended.* - **[WARNING]** Missing required property "name" for WebSite — The "name" property is required for the WebSite schema type. - **[WARNING]** Missing required property "url" for WebSite — The "url" property is required for the WebSite schema type. - **[INFO]** Missing recommended property "description" for WebSite — Adding "description" can improve how search engines display your content. - **[INFO]** Missing recommended property "potentialAction" for WebSite — Adding "potentialAction" can improve how search engines display your content. --- ## Infrastructure ### DNS Records (A — 85/100) *1 A records, 40 ms lookup* - **[PASS]** Resolves to 1 IPv4 address(es) - **[INFO]** Single A record — no DNS redundancy — Multiple A records provide failover if one server goes down. - **[PASS]** Has 2 IPv6 (AAAA) record(s) - **[INFO]** No NS records found - **[INFO]** No MX records — email not configured via DNS - **[INFO]** CAA records not checked — CAA record lookup requires a specialized DNS resolver. This check will be available in a future update. - **[INFO]** No SPF record found in TXT records — SPF helps prevent email spoofing. Add a TXT record starting with 'v=spf1'. - **[PASS]** DNS resolution time: 40 ms ### Redirect Chain (A+ — 100/100) *No redirects — direct access* - **[PASS]** No redirects — direct access ### IPv6 Readiness (A+ — 100/100) *IPv6 reachable (0 ms)* - **[PASS]** IPv6 is configured and reachable at 2620:12a:8001::3, 2620:12a:8000::3 ### Crawlability (A+ — 100/100) *robots.txt present, sitemap with 3101 URLs* - **[PASS]** robots.txt is present - **[PASS]** sitemap.xml is present - **[PASS]** sitemap.xml is valid XML - **[PASS]** sitemap.xml contains 3101 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: www) - **[PASS]** HTTP correctly 301-redirects to HTTPS ### Domain Intelligence (A+ — 100/100) *cncf.io — via 1API GmbH, 10 years, 10 months old* - **[PASS]** Domain registered until Jul 16, 2026 (3 months remaining) - **[PASS]** Registrar: 1API GmbH --- ## Compliance ### WCAG Compliance (A+ — 100/100) *No testable criteria* ### Cookie Consent & Privacy (B — 80/100) *Osano detected* - **[WARNING]** No privacy policy link detected — A privacy policy page is recommended for transparency and may be legally required. - **[INFO]** No terms of service link detected - **[PASS]** Consent banner detected (Osano) - **[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 (C — 55/100) *3 trackers detected* - **[INFO]** 3 third-party trackers detected — Found 1 analytics, 0 advertising, 1 marketing, 1 tag manager trackers. - **[WARNING]** Trackers detected but no cookie policy found — This page loads 3 trackers but no cookie policy was detected. GDPR requires disclosure when using tracking cookies. - **[WARNING]** Trackers detected but no privacy policy found — Most data protection regulations require a privacy policy when collecting user data via trackers. --- ## Legal ### Legal Page Ecosystem (B — 70/100) *3 of 7 expected legal pages detected* - **[PASS]** Privacy Policy detected — Found at https://www.linuxfoundation.org/privacy/. - **[PASS]** Terms of Service detected — Found at https://www.linuxfoundation.org/legal/trademark-usage, linked from footer. - **[INFO]** Cookie Policy not detected — No link matching common Cookie Policy URL patterns or link text was found. Most websites are expected to have a Cookie Policy, especially those collecting user data. - **[PASS]** Accessibility Statement detected — Found at https://www.cncf.io/accessibility-statement/. - **[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 (A+ — 100/100) *© 2026 The Linux Foundation®* - **[PASS]** Copyright notice is up to date — Copyright notice is up to date: © 2026 The Linux Foundation® - **[PASS]** Copyright holder: The Linux Foundation® ### Regulatory Indicators *3 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 (moderate confidence) — Indicators suggesting GDPR may be relevant: Privacy policy page found. EU General Data Protection Regulation — governs collection and processing of personal data of EU residents. - **[INFO]** ADA indicators detected (moderate confidence) — Indicators suggesting ADA may be relevant: Accessibility statement page found. Americans with Disabilities Act / Section 508 — requires digital accessibility for people with disabilities. - **[INFO]** HIPAA indicators detected (weak confidence) — Indicators suggesting HIPAA may be relevant: Text mentions: phi. Health Insurance Portability and Accountability Act — protects sensitive patient health information. ### 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 (C — 55/100) *0 compliance badge(s) detected* - **[INFO]** No compliance badges detected — No recognized compliance certification badges or seals were found. This is common — many sites do not display compliance badges. --- ## Availability ### CDN & Delivery (A+ — 100/100) *Fastly (HIT, MISS, MISS, MISS)* - **[PASS]** Site is served via Fastly CDN - **[PASS]** CDN cache status: HIT, MISS, MISS, MISS ### 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: 12 hours (s-maxage=43200) - **[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 (includeSubDomains, preload) - **[PASS]** HSTS preload enabled - **[PASS]** TLS 1.3 in use (fastest handshake, 1-RTT) --- ## Accessibility ### Landmark Structure (C — 65/100) *4 landmarks* - **[CRITICAL]** No
landmark found — Screen reader users cannot quickly navigate to the primary content. Wrap your main content in
. - **[PASS]** 2