# BeaverCheck Audit Report — https://massgeneral.org **Date:** April 22, 2026 **URL:** https://massgeneral.org **Overall Grade:** C (77/100) **Report:** https://beavercheck.com/results/ad495fec-0cc5-474d-b04e-2adaf62741b6 ## Top Findings 1. **[CRITICAL]** Content-Security-Policy header is missing — Security > Security Headers 2. **[CRITICAL]** HSTS header is missing — Security > Security Headers 3. **[CRITICAL]** No Content-Security-Policy header found — Security > Content Security Policy 4. **[CRITICAL]** 2 link(s) with no accessible text — Accessibility > Link & Button Quality 5. **[WARNING]** is missing width/height — may cause layout shift — Performance > Image Optimization --- ## Lighthouse Scores | Category | Score | |----------|-------| | Performance | 32 | | Accessibility | 88 | | Best Practices | 96 | | SEO | 85 | --- ## Security ### Security Headers (F — 10/100) *2 of 10 headers properly configured* - **[CRITICAL]** HSTS header is missing — Strict-Transport-Security forces browsers to use HTTPS, preventing downgrade attacks. Add the header with a max-age of at least 1 year. - **[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 not present ### 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 1.2, 7 checks passed* - **[PASS]** TLS 1.2 is used - **[INFO]** TLS 1.3 is not negotiated — TLS 1.3 offers improved performance and security. Consider enabling it. - **[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 44 days) - **[PASS]** Certificate chain has 3 certificates - **[PASS]** Certificate uses modern signature algorithm - **[PASS]** Certificate covers 4 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 9 external resources have SRI* - **[WARNING]** External script from mgb.containers.piwik.pro lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from www.youtube.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from munchkin.marketo.net lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from www.youtube.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from mgb.containers.piwik.pro lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External link from d34ap6s6npht7p.cloudfront.net lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External link from d34ap6s6npht7p.cloudfront.net lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from munchkin.marketo.net lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from d34ap6s6npht7p.cloudfront.net 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* - **[PASS]** security.txt is present — good practice - **[PASS]** No sensitive files exposed ### Email Security (A+ — 100/100) *DMARC: reject* - **[PASS]** DMARC policy is reject — strongest protection ### 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 (B — 81/100) *1.2 MB transferred, 46 requests* - **[PASS]** Page weighs 2.3 MB (1.2 MB transferred) - **[INFO]** Fonts are 360 KB — consider subsetting or using system fonts — Subset fonts to include only used characters, or switch to system font stacks. - **[PASS]** 46 HTTP requests - **[INFO]** Estimated 0.24 g CO2 per page load ### Third-Party Impact (D — 50/100) *100% third-party, 0 ms blocking* - **[WARNING]** Third-party code accounts for 100% of page weight (1.2 MiB of 1.2 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 — 80/100) *4 images, 0 KB saveable* - **[WARNING]** https://www.massgeneral.org/assets/MGH/images/logo... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS. - **[WARNING]** is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS. ### JS Execution Cost (D — 40/100) *2440ms total JS execution* - **[WARNING]** https://d34ap6s6npht7p.cloudfront.net/cdn/js/main....: 694ms CPU time - **[WARNING]** https://www.massgeneral.org/: 494ms CPU time - **[WARNING]** https://mgb.containers.piwik.pro/41b8ae76-3079-47d...: 441ms CPU time - **[WARNING]** Unattributable: 318ms CPU time - **[INFO]** https://www.massgeneral.org/assets/MGH/js/3.bundle...: 217ms CPU time - **[WARNING]** Third-party scripts: 2440ms (100% of total) ### Font Loading (A+ — 100/100) *10 fonts (360 KB)* - **[INFO]** 10 font(s) use font-display: swap (FOUT risk but functional) ### JS Bundles (B — 80/100) *22 scripts, 87 KB unused* - **[WARNING]** https://d34ap6s6npht7p.cloudfront.net/cdn/js/main....: 52 KB unused (52%) — Consider code splitting or tree shaking to reduce unused code. - **[WARNING]** https://mgb.containers.piwik.pro/41b8ae76-3079-47d...: 35 KB unused (38%) — Consider code splitting or tree shaking to reduce unused code. - **[INFO]** Total unused JavaScript: 87 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) *13 hints, 0 missing preconnects* - **[PASS]** Page uses 13 resource hint(s) ### Page Weight Inventory (B — 75/100) *46 resources · 1.2 MB · 87 KB savings available* - **[WARNING]** Page weight 156 KB over 1MB target - **[INFO]** ~87 KB of savings available - **[WARNING]** 45 third-party resources (100% of weight) - **[INFO]** 1 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 (B — 83/100) *168 links checked, 164 healthy, 3 broken* - **[WARNING]** 164 of 168 links are healthy - **[INFO]** Long redirect chain: https://cloud-api.highcharts.com (5 hops) - **[CRITICAL]** Broken link: https://researchers.mgh.harvard.edu/ — Found in . Get "https://researchers.mgh.harvard.edu/": tls: failed to verify certificate: x509: certificate signed by unknown authority - **[CRITICAL]** Broken link: http://apollo.massgeneral.org/ — Found in . Get "http://apollo.massgeneral.org/": context deadline exceeded - **[CRITICAL]** Broken link: https://www.instagram.com/massgeneral/ — Found in . Returns HTTP 429. ### 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.* - **[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, 76 ms lookup* - **[PASS]** Resolves to 2 IPv4 address(es) - **[INFO]** No IPv6 (AAAA) records - **[PASS]** 4 nameserver(s) configured - **[PASS]** 1 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: 76 ms ### Redirect Chain (B — 70/100) *1 redirect(s), 1141 ms total* - **[PASS]** Single redirect - **[INFO]** WWW normalization redirect - **[INFO]** Uses 302 (temporary) redirect — If permanent, use 301 instead. - **[WARNING]** Redirect overhead: 1141 ms total ### 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 24 URLs* - **[PASS]** robots.txt is present - **[PASS]** sitemap.xml is present - **[PASS]** sitemap.xml is valid XML - **[PASS]** sitemap.xml contains 24 entries - **[PASS]** Sitemap index with 24 child sitemaps - **[PASS]** robots.txt references sitemap ### URL Variants (C — 65/100) *www/non-www, trailing slash, HTTP→HTTPS* - **[CRITICAL]** Both www and non-www versions serve content - **[WARNING]** HTTP→HTTPS redirect uses 302 instead of 301 ### Domain Intelligence (A+ — 100/100) *massgeneral.org — via eNom, LLC, 27 years, 7 months old, hosted on PHS - Mass General Brigham Incorporated, US* - **[PASS]** Domain registered until Feb 11, 2034 (7 years, 11 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: eNom, LLC - **[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: PHS - Mass General Brigham Incorporated, US --- ## 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 ### Third-Party Trackers (C — 55/100) *4 trackers detected* - **[INFO]** 4 third-party trackers detected — Found 3 analytics, 0 advertising, 1 marketing, 0 tag manager trackers. - **[WARNING]** Trackers detected but no cookie policy found — This page loads 4 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. ### Cookie & Tracker Inventory (A+ — 100/100) *0 cookies · 4 trackers · 0 pre-consent* - **[INFO]** 4 third-party tracker(s) detected on page --- ## Legal ### Legal Page Ecosystem (C — 65/100) *3 of 7 expected legal pages detected* - **[PASS]** Privacy Policy detected — Found at /notices/privacy/websiteprivacy. - **[PASS]** Terms of Service detected — Found at /conditions-and-treatments/browse. - **[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 /visit/accessibility. - **[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) *Copyright © 2007-2026* - **[PASS]** Copyright notice is up to date — Copyright notice is up to date: Copyright © 2007-2026 ### 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]** 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. ### 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 (D — 50/100) *No CDN detected* - **[WARNING]** No CDN detected — A CDN can significantly improve load times for users around the world by caching content at edge nodes closer to them. ### HTTP Caching (B — 70/100) *no-cache* - **[PASS]** Cache-Control header is set - **[INFO]** No ETag or Last-Modified header — Conditional requests (304 Not Modified) are not possible without validators. ### Transport Security (B — 75/100) *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. - **[WARNING]** Missing Strict-Transport-Security header — HSTS tells browsers to only use HTTPS, preventing SSL stripping attacks. --- ## Accessibility ### Landmark Structure (A+ — 100/100) *10 landmarks* - **[PASS]**
landmark present - **[PASS]** 6