# BeaverCheck Audit Report — https://react.dev **Date:** April 4, 2026 **URL:** https://react.dev **Overall Grade:** C (75/100) **Report:** https://beavercheck.com/results/77d73532-d7b7-4396-adbc-d60bf1de7fa3 ## 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]** 19 image-only link(s) without alt text — Accessibility > Link & Button Quality 4. **[CRITICAL]** 9 link(s) with no accessible text — Accessibility > Link & Button Quality 5. **[WARNING]** Cross-Origin-Embedder-Policy header is missing — Security > Security Headers --- ## Lighthouse Scores | Category | Score | |----------|-------| | Performance | 59 | | Accessibility | 95 | | Best Practices | 100 | | SEO | 92 | --- ## Security ### Security Headers (F — 25/100) *2 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'. - **[WARNING]** X-Frame-Options header is missing — This header prevents clickjacking by controlling who can embed your page in a frame. Set it to DENY or SAMEORIGIN. - **[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 39 days) - **[PASS]** Certificate chain has 2 certificates - **[PASS]** Certificate uses modern signature algorithm - **[PASS]** Certificate covers 1 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 1 external resources have SRI* - **[WARNING]** External script from www.googletagmanager.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 (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 (C — 60/100) *Origin: ** - **[INFO]** Access-Control-Allow-Origin: * — unrestricted — Any website can read this resource's response. Appropriate for public APIs but not for user-specific content. - **[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 (B — 83/100) *1.1 MB transferred, 66 requests* - **[PASS]** Page weighs 2.5 MB (1.1 MB transferred) - **[WARNING]** JavaScript is 541 KB — consider code splitting or lazy loading — Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts. - **[INFO]** Fonts are 314 KB — consider subsetting or using system fonts — Subset fonts to include only used characters, or switch to system font stacks. - **[INFO]** 66 HTTP requests - **[INFO]** Estimated 0.23 g CO2 per page load ### Third-Party Impact (A+ — 100/100) *13% third-party, 0 ms blocking* - **[INFO]** Third-party code accounts for 13% of page weight (145.4 KiB of 1.1 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 (B — 75/100) *34 images, 0 KB saveable* - **[PASS]** All images are well-optimized ### JS Execution Cost (D — 40/100) *2594ms total JS execution* - **[WARNING]** https://react.dev/: 728ms CPU time - **[WARNING]** https://react.dev/_next/static/chunks/framework-76...: 679ms CPU time - **[WARNING]** Unattributable: 454ms CPU time - **[WARNING]** https://www.googletagmanager.com/gtag/js?id=G-B1E8...: 280ms CPU time - **[INFO]** https://react.dev/_next/static/chunks/4ad82c5e.aa0...: 203ms CPU time - **[INFO]** Third-party scripts: 733ms (28% of total) ### Font Loading (A+ — 100/100) *9 fonts (314 KB)* - **[INFO]** 9 font(s) use font-display: swap (FOUT risk but functional) ### JS Bundles (C — 60/100) *13 scripts, 209 KB unused* - **[WARNING]** https://www.googletagmanager.com/gtag/js?id=G-B1E8...: 62 KB unused (43%) — Consider code splitting or tree shaking to reduce unused code. - **[WARNING]** https://react.dev/_next/static/chunks/4ad82c5e.aa0...: 45 KB unused (90%) — Consider code splitting or tree shaking to reduce unused code. - **[WARNING]** https://react.dev/_next/static/chunks/811.b2e5ca62...: 44 KB unused (40%) — Consider code splitting or tree shaking to reduce unused code. - **[WARNING]** https://react.dev/_next/static/chunks/928-e89de0bd...: 32 KB unused (34%) — Consider code splitting or tree shaking to reduce unused code. - **[WARNING]** https://react.dev/_next/static/chunks/668-9be9de6f...: 26 KB unused (76%) — Consider code splitting or tree shaking to reduce unused code. - **[INFO]** Total unused JavaScript: 209 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) *38 hints, 0 missing preconnects* - **[PASS]** Page uses 38 resource hint(s) --- ## Content Quality ### Links (F — 40/100) *132 links checked, 111 healthy, 21 broken* - **[CRITICAL]** 111 of 132 links are healthy - **[WARNING]** Broken link: https://react.dev/fonts/Optimistic_Text_W_Bd.woff2 — Found in . Get "https://react.dev/fonts/Optimistic_Text_W_Bd.woff2": context deadline exceeded - **[WARNING]** Broken link: https://react.dev/fonts/Optimistic_Text_W_Rg.woff2 — Found in . Get "https://react.dev/fonts/Optimistic_Text_W_Rg.woff2": context deadline exceeded - **[WARNING]** Broken link: https://react.dev/fonts/Optimistic_Text_W_It.woff2 — Found in . Get "https://react.dev/fonts/Optimistic_Text_W_It.woff2": context deadline exceeded - **[WARNING]** Broken link: https://react.dev/rss.xml — Found in . Get "https://react.dev/rss.xml": context deadline exceeded - **[WARNING]** Broken link: https://1FCF9AYYAT-dsn.algolia.net — Found in . Returns HTTP 404. - **[WARNING]** Broken link: https://react.dev/_next/static/css/08c63e3f3aafb0fb.css — Found in . Get "https://react.dev/_next/static/css/08c63e3f3aafb0fb.css": context deadline exceeded - **[WARNING]** Broken link: https://react.dev/apple-touch-icon.png — Found in . Get "https://react.dev/apple-touch-icon.png": context deadline exceeded - **[WARNING]** Broken link: https://react.dev/favicon-32x32.png — Found in . Get "https://react.dev/favicon-32x32.png": context deadline exceeded - **[WARNING]** Broken link: https://react.dev/favicon-16x16.png — Found in . Get "https://react.dev/favicon-16x16.png": context deadline exceeded - **[CRITICAL]** Broken link: https://www.youtube.com/watch?v=KVZ-P-ZI6W4 — Found in . Get "https://www.youtube.com/watch?v=KVZ-P-ZI6W4": context deadline exceeded - **[CRITICAL]** Broken link: https://www.youtube.com/watch?v=V-QO-KO90iQ — Found in . Get "https://www.youtube.com/watch?v=V-QO-KO90iQ": context deadline exceeded - **[CRITICAL]** Broken link: https://www.youtube.com/watch?v=TQQPAU21ZUw — Found in . Get "https://www.youtube.com/watch?v=TQQPAU21ZUw": context deadline exceeded - **[CRITICAL]** Broken link: https://nextjs.org — Found in . Get "https://nextjs.org": context deadline exceeded - **[CRITICAL]** Broken link: https://www.youtube.com/watch?v=FZ0cG47msEk&list=PLNG_1j3... — Found in . Get "https://www.youtube.com/watch?v=FZ0cG47msEk&list=PLNG_1j3cPCaZZ7etkzWA7JfdmKWT0pMsa&index=1": context deadline exceeded - **[CRITICAL]** Broken link: https://www.youtube.com/watch?v=ytudH8je5ko&list=PLNG_1j3... — Found in . Get "https://www.youtube.com/watch?v=ytudH8je5ko&list=PLNG_1j3cPCaZZ7etkzWA7JfdmKWT0pMsa&index=2": context deadline exceeded - **[CRITICAL]** Broken link: https://www.youtube.com/watch?v=pj5N-Khihgc&list=PLNG_1j3... — Found in . Get "https://www.youtube.com/watch?v=pj5N-Khihgc&list=PLNG_1j3cPCaZZ7etkzWA7JfdmKWT0pMsa&index=3": context deadline exceeded - **[CRITICAL]** Broken link: https://www.youtube.com/watch?v=qn7gRClrC9U&list=PLNG_1j3... — Found in . Get "https://www.youtube.com/watch?v=qn7gRClrC9U&list=PLNG_1j3cPCaZZ7etkzWA7JfdmKWT0pMsa&index=4": context deadline exceeded - **[WARNING]** Broken link: https://react.dev/images/home/community/react_india_sunil... — Found in . Get "https://react.dev/images/home/community/react_india_sunil.webp": context deadline exceeded - **[CRITICAL]** Broken link: https://react.dev/community/team — Found in . Get "https://react.dev/community/team": context deadline exceeded - **[CRITICAL]** Broken link: https://react.dev/community/docs-contributors — Found in . Get "https://react.dev/community/docs-contributors": context deadline exceeded - **[CRITICAL]** Broken link: https://react.dev/community/acknowledgements — Found in . Get "https://react.dev/community/acknowledgements": context deadline exceeded ### 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 — 95/100) *Open Graph tags are well configured for social sharing.* - **[INFO]** og:title is short (5 characters) — Ideal length is 25–60 characters for social sharing previews. - **[INFO]** og:description is long (260 characters) — Descriptions over 200 characters may be truncated in social sharing previews. - **[INFO]** Missing og:site_name — The og:site_name tag displays the website name in social previews. ### 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 — 85/100) *2 A records, 5114 ms lookup* - **[PASS]** Resolves to 2 IPv4 address(es) - **[INFO]** No IPv6 (AAAA) records - **[PASS]** 2 nameserver(s) configured - **[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'. - **[WARNING]** DNS resolution is slow (5114 ms) — Slow DNS adds latency to every page load. Consider a faster DNS provider. ### 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 (B — 80/100) *robots.txt present, no sitemap* - **[PASS]** robots.txt is present - **[INFO]** No sitemap.xml found — A sitemap helps search engines discover and index your pages more efficiently. - **[INFO]** robots.txt does not reference a sitemap — Add a 'Sitemap:' directive to robots.txt so search engines can discover your sitemap. ### URL Variants (A — 90/100) *www/non-www, trailing slash, HTTP→HTTPS* - **[WARNING]** HTTP→HTTPS redirect uses 302 instead of 301 ### Domain Intelligence (A+ — 100/100) *react.dev — via RegistrarSEC, LLC, 7 years, 2 months old, hosted on AWS* - **[PASS]** Domain registered until Feb 19, 2027 (10 months remaining) - **[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: RegistrarSEC, LLC - **[PASS]** Hosting: AWS --- ## Compliance ### WCAG Compliance (A+ — 100/100) *No testable criteria* ### Cookie Consent & Privacy (A+ — 100/100) *privacy policy found* - **[PASS]** Privacy policy link found - **[PASS]** Terms of service link found - **[INFO]** No cookie consent banner detected - **[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 --- ## Legal ### Legal Page Ecosystem (C — 60/100) *2 of 7 expected legal pages detected* - **[PASS]** Privacy Policy detected — Found at https://opensource.facebook.com/legal/privacy, linked from footer. - **[PASS]** Terms of Service detected — Found at https://opensource.facebook.com/legal/privacy, 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. - **[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 *2 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]** 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 *1 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]** 1 third-party services across 1 categories — 1 third-party services detected across 1 categories: Analytics (1). Each of these services receives some user data from your site visitors. - **[INFO]** Google Analytics (Analytics) — Detected via script URL. Typically collects: Page views, User behavior, Demographics, Device info, IP address. Privacy policy: https://policies.google.com/privacy. Data Processing Agreement available. ### 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) *Vercel (HIT)* - **[PASS]** Site is served via Vercel CDN - **[PASS]** CDN cache status: HIT ### HTTP Caching (B — 75/100) *public, max-age=0, must-revalidate* - **[PASS]** Cache-Control header is set - **[PASS]** ETag present — enables conditional (304) responses --- ## Accessibility ### Landmark Structure (B — 80/100) *3 landmarks* - **[PASS]**
landmark present - **[PASS]** 1