# BeaverCheck Audit Report — https://jestjs.io **Date:** April 4, 2026 **URL:** https://jestjs.io **Overall Grade:** C (76/100) **Report:** https://beavercheck.com/results/b0f5b92d-007d-4cad-8736-1da3f2216d9a ## 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]** 4 image(s) missing alt attribute — Accessibility > Alt Text Quality 4. **[CRITICAL]** No
landmark found — Accessibility > Landmark Structure 5. **[CRITICAL]** No H1 heading found — Accessibility > Heading Hierarchy --- ## Lighthouse Scores | Category | Score | |----------|-------| | Performance | 61 | | Accessibility | 91 | | Best Practices | 96 | | SEO | 83 | --- ## 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 58 days) - **[PASS]** Certificate chain has 3 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 3 external resources have SRI* - **[WARNING]** External script from www.google-analytics.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from www.googletagmanager.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[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 (B — 80/100) *No CORS headers* - **[PASS]** No CORS headers present — secure default --- ## Performance ### Page Weight Budget (C — 67/100) *1.6 MB transferred, 50 requests* - **[INFO]** Page weighs 2.7 MB (1.6 MB transferred) - **[WARNING]** Images are 1.0 MB — compress or use modern formats — Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size. - **[PASS]** 50 HTTP requests - **[INFO]** Estimated 0.34 g CO2 per page load ### Third-Party Impact (A+ — 100/100) *19% third-party, 0 ms blocking* - **[INFO]** Third-party code accounts for 19% of page weight (325.1 KiB of 1.6 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) *22 images, 0 KB saveable* - **[WARNING]** https://jestjs.io/img/logos/nyt.png is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS. - **[WARNING]** https://jestjs.io/img/logos/airbnb.png is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS. - **[WARNING]** https://jestjs.io/img/logos/facebook.png is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS. - **[WARNING]** https://jestjs.io/img/openjs_foundation-logo-horiz... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS. - **[WARNING]** https://jestjs.io/img/logos/twitter.png is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS. - **[WARNING]** https://jestjs.io/img/logos/spotify.png is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS. - **[WARNING]** https://jestjs.io/img/logos/instagram.png is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS. ### JS Execution Cost (F — 20/100) *5007ms total JS execution* - **[WARNING]** https://jestjs.io/: 2604ms CPU time - **[WARNING]** https://jestjs.io/assets/js/main.17432a57.js: 1242ms CPU time - **[WARNING]** Unattributable: 524ms CPU time - **[WARNING]** https://www.googletagmanager.com/gtag/js?id=UA-443...: 277ms CPU time - **[INFO]** https://www.googletagmanager.com/gtag/js?id=G-9V0L...: 214ms CPU time - **[INFO]** Third-party scripts: 1087ms (22% of total) ### Font Loading (A+ — 100/100) *No web fonts (system fonts)* - **[PASS]** No web fonts loaded — system fonts are fastest ### JS Bundles (C — 60/100) *21 scripts, 158 KB unused* - **[WARNING]** https://www.googletagmanager.com/gtag/js?id=G-9V0L...: 63 KB unused (43%) — Consider code splitting or tree shaking to reduce unused code. - **[WARNING]** https://www.googletagmanager.com/gtag/js?id=UA-443...: 63 KB unused (51%) — Consider code splitting or tree shaking to reduce unused code. - **[WARNING]** https://jestjs.io/assets/js/main.17432a57.js: 33 KB unused (23%) — Consider code splitting or tree shaking to reduce unused code. - **[INFO]** Total unused JavaScript: 158 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) *3 hints, 0 missing preconnects* - **[PASS]** Page uses 3 resource hint(s) --- ## Content Quality ### Links (A — 90/100) *104 links checked, 102 healthy, 2 broken* - **[WARNING]** 102 of 104 links are healthy - **[WARNING]** Broken link: https://www.googletagmanager.com — Found in . Returns HTTP 404. - **[CRITICAL]** Broken link: https://jest-archive-august-2023.netlify.app/docs/29.6/ge... — 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 (C — 75/100) *Open Graph tags are partially configured — some improvements recommended.* - **[WARNING]** Missing og:description — The og:description tag controls the description in social sharing previews. - **[INFO]** og:title is short (4 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 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 — 90/100) *2 A records, 5114 ms lookup* - **[PASS]** Resolves to 2 IPv4 address(es) - **[PASS]** Has 2 IPv6 (AAAA) record(s) - **[PASS]** 2 nameserver(s) configured - **[PASS]** 5 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 - **[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 (A+ — 100/100) *IPv6 reachable (1 ms)* - **[PASS]** IPv6 is configured and reachable at 2606:4700::6812:1590, 2606:4700::6812:1490 ### Crawlability (B — 75/100) *no robots.txt, no sitemap* - **[INFO]** No robots.txt found — robots.txt is optional but recommended. It tells search engine crawlers which pages to index. - **[INFO]** No sitemap.xml found — A sitemap helps search engines discover and index your pages more efficiently. ### 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) *jestjs.io — via 1API GmbH, 7 years, 10 months old* - **[WARNING]** Domain expires in 82 days — Consider enabling auto-renewal to prevent accidental expiration. - **[PASS]** Registrar: 1API GmbH --- ## Compliance ### WCAG Compliance (A+ — 100/100) *No testable criteria* ### Cookie Consent & Privacy (B — 80/100) *No consent signals 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 - **[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 (B — 75/100) *3 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. - **[PASS]** Cookie Policy detected — Found at https://www.linuxfoundation.org/cookies, linked from footer. - **[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 — 85/100) *Cloudflare (DYNAMIC)* - **[PASS]** Site is served via Cloudflare CDN (edge: SIN) - **[INFO]** CDN cache status: DYNAMIC ### HTTP Caching (B — 70/100) *public,max-age=0,must-revalidate* - **[PASS]** Cache-Control header is set - **[INFO]** No ETag or Last-Modified header — Conditional requests (304 Not Modified) are not possible without validators. --- ## Accessibility ### Landmark Structure (B — 75/100) *4 landmarks* - **[CRITICAL]** No
landmark found — Screen reader users cannot quickly navigate to the primary content. Wrap your main content in
. - **[PASS]** 1