# BeaverCheck Audit Report — https://cancer.org **Date:** April 21, 2026 **URL:** https://cancer.org **Overall Grade:** C (74/100) **Report:** https://beavercheck.com/results/f9122093-be82-47f7-8072-7194cf9ac954 ## 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]** Page weighs 11.1 MB (4.0 MB transferred) — Performance > Page Weight Budget 5. **[CRITICAL]** 7 image-only link(s) without alt text — Accessibility > Link & Button Quality --- ## Lighthouse Scores | Category | Score | |----------|-------| | Performance | 40 | | Accessibility | 94 | | Best Practices | 81 | | SEO | 92 | --- ## Security ### Security Headers (F — 0/100) *0 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. - **[WARNING]** X-Powered-By header reveals technology stack — This header discloses server technology (e.g. Express, PHP), helping attackers target known vulnerabilities. Remove it. - **[WARNING]** Server header reveals version information — The Server header discloses the software version, aiding attackers in targeting known vulnerabilities. Remove the version number. ### 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 73 days) - **[PASS]** Certificate chain has 4 certificates - **[PASS]** Certificate uses modern signature algorithm - **[PASS]** Certificate covers 2 domain(s) - **[PASS]** Certificate is issued by a trusted CA ### Cookie Security (A+ — 95/100) *2 cookies analyzed, 5 checks passed* - **[PASS]** Cookie 'ARRAffinity' has the Secure flag - **[PASS]** Cookie 'ARRAffinity' has the HttpOnly flag - **[WARNING]** Cookie 'ARRAffinity' has no SameSite attribute — Without an explicit SameSite attribute, browser default behavior varies. Set SameSite=Lax or Strict. - **[PASS]** Cookie 'ARRAffinitySameSite' has the Secure flag - **[PASS]** Cookie 'ARRAffinitySameSite' has the HttpOnly flag - **[PASS]** Cookie 'ARRAffinitySameSite' has SameSite=None --- ## Advanced Security ### Subresource Integrity (D — 40/100) *1 of 20 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. - **[WARNING]** External script from unpkg.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[PASS]** script from www.gstatic.com has SRI protection - **[WARNING]** External script from www.googletagmanager.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External link from fonts.googleapis.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External link from fonts.googleapis.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External link from fonts.googleapis.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from cdn.cookielaw.org lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from cdn.cookielaw.org lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External link from cdnjs.cloudflare.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External link from assets-donate.azureedge.net lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from assets-donate.azureedge.net lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from js.braintreegateway.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from js.braintreegateway.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.google.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from donate.cancer.org lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from acs.cdn-v3.conductrics.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External link from assets-chat-dqcfe8adhpcrfnbc.a03.azurefd.net lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from assets-chat-dqcfe8adhpcrfnbc.a03.azurefd.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* - **[INFO]** No security.txt found — Consider adding a security.txt at /.well-known/security.txt. - **[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 (F — 0/100) *4.0 MB transferred, 94 requests* - **[CRITICAL]** Page weighs 11.1 MB (4.0 MB transferred) - **[WARNING]** JavaScript is 1.9 MB — consider code splitting or lazy loading — Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts. - **[INFO]** Fonts are 1.2 MB — consider subsetting or using system fonts — Subset fonts to include only used characters, or switch to system font stacks. - **[INFO]** CSS is 290 KB — consider purging unused styles — Remove unused CSS rules with tools like PurgeCSS to reduce stylesheet size. - **[INFO]** 94 HTTP requests - **[INFO]** Estimated 0.83 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 (4.0 MiB of 4.0 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 (B — 75/100) *20 images, 0 KB saveable* - **[PASS]** All images are well-optimized ### JS Execution Cost (F — 20/100) *5771ms total JS execution* - **[WARNING]** https://www.cancer.org/: 1481ms CPU time - **[WARNING]** https://www.gstatic.com/recaptcha/releases/gTpTIWh...: 858ms CPU time - **[WARNING]** Unattributable: 591ms CPU time - **[WARNING]** https://www.googletagmanager.com/gtm.js?id=GTM-52Z...: 590ms CPU time - **[WARNING]** https://www.cancer.org/etc.clientlibs/clientlibs/g...: 514ms CPU time - **[WARNING]** Third-party scripts: 5771ms (100% of total) ### Font Loading (A+ — 100/100) *17 fonts (1244 KB)* - **[INFO]** 17 font(s) use font-display: swap (FOUT risk but functional) ### JS Bundles (F — 20/100) *30 scripts, 1.1 MB unused* - **[WARNING]** https://www.gstatic.com/recaptcha/releases/gTpTIWh...: 177 KB unused (49%) — Consider code splitting or tree shaking to reduce unused code. - **[WARNING]** https://www.gstatic.com/recaptcha/releases/gTpTIWh...: 177 KB unused (49%) — Consider code splitting or tree shaking to reduce unused code. - **[WARNING]** https://www.gstatic.com/recaptcha/releases/gTpTIWh...: 177 KB unused (49%) — Consider code splitting or tree shaking to reduce unused code. - **[WARNING]** https://www.gstatic.com/recaptcha/releases/gTpTIWh...: 177 KB unused (49%) — Consider code splitting or tree shaking to reduce unused code. - **[WARNING]** https://assets-donate.azureedge.net/widget/donate-...: 149 KB unused (35%) — Consider code splitting or tree shaking to reduce unused code. - **[INFO]** Total unused JavaScript: 1.1 MB ### 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) *2 hints, 0 missing preconnects* - **[PASS]** Page uses 2 resource hint(s) ### Page Weight Inventory (F — 20/100) *94 resources · 4.0 MB · 1.1 MB savings available* - **[WARNING]** Page weight 3.0 MB over 1MB target - **[INFO]** ~1.1 MB of savings available - **[WARNING]** 93 third-party resources (100% of weight) - **[INFO]** 5 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 — 80/100) *200 links checked, 196 healthy, 4 broken* - **[CRITICAL]** 196 of 200 links are healthy - **[WARNING]** Broken link: https://fonts.googleapis.com — Found in . Returns HTTP 404. - **[WARNING]** Broken link: https://fonts.gstatic.com — Found in . Returns HTTP 404. - **[CRITICAL]** Broken link: https://www.acsholidaycollection.org/index.jsp — Found in . Get "https://www.acsholidaycollection.org/index.jsp": context deadline exceeded - **[CRITICAL]** Broken link: https://canceratlas.cancer.org — Found in . Get "https://canceratlas.cancer.org": 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 (D — 60/100) *Open Graph tags need attention — social sharing previews may be incomplete.* - **[WARNING]** Missing og:description — The og:description tag controls the description in social sharing previews. - **[WARNING]** Missing og:image — The og:image tag provides a preview image for social sharing. - **[INFO]** og:title is short (24 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 (B — 85/100) *1 JSON-LD block(s) found — some improvements recommended.* - **[WARNING]** Missing or invalid @context in block #1 — The @context should be "https://schema.org" for search engines to recognize the data. - **[PASS]** Custom type "NGO" — unable to validate specific properties --- ## Infrastructure ### DNS Records (A+ — 95/100) *1 A records, 78 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. - **[INFO]** No IPv6 (AAAA) records - **[PASS]** 4 nameserver(s) configured - **[PASS]** 2 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: 78 ms ### Redirect Chain (A — 90/100) *1 redirect(s), 490 ms total* - **[PASS]** Single redirect - **[INFO]** WWW normalization redirect ### 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 3496 URLs* - **[PASS]** robots.txt is present - **[PASS]** sitemap.xml is present - **[PASS]** sitemap.xml is valid XML - **[PASS]** sitemap.xml contains 3496 entries - **[PASS]** robots.txt references sitemap ### URL Variants (B — 75/100) *www/non-www, trailing slash, HTTP→HTTPS* - **[CRITICAL]** Both www and non-www versions serve content - **[PASS]** HTTP correctly 301-redirects to HTTPS ### Domain Intelligence (A+ — 100/100) *cancer.org — via Network Solutions, LLC, 32 years old, hosted on Microsoft Azure* - **[PASS]** Domain registered until Oct 5, 2029 (3 years, 6 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: Network Solutions, 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: Microsoft Azure --- ## 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 - **[PASS]** 2 cookie(s) set on initial load (functional) - **[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) *5 trackers detected* - **[INFO]** 5 third-party trackers detected — Found 4 analytics, 0 advertising, 0 marketing, 1 tag manager trackers. - **[WARNING]** Trackers detected but no cookie policy found — This page loads 5 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) *2 cookies · 5 trackers · 0 pre-consent* - **[INFO]** 5 third-party tracker(s) detected on page --- ## Legal ### Legal Page Ecosystem (D — 45/100) *2 of 7 expected legal pages detected* - **[PASS]** Privacy Policy detected — Found at /about-us/policies/privacy-statement.html, linked from footer. - **[WARNING]** Terms of Service not detected — No link matching common Terms of Service URL patterns or link text was found. Most websites are expected to have a Terms of Service, especially those collecting user data. - **[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 /about-us/policies/accessibility-policy.html, linked from footer. - **[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 American Cancer Society* - **[PASS]** Copyright notice is up to date — Copyright notice is up to date: © 2026 American Cancer Society - **[PASS]** Copyright holder: American Cancer Society ### Regulatory Indicators *4 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: cookielaw.org; 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]** PCI-DSS indicators detected (strong confidence) — Indicators suggesting PCI-DSS may be relevant: Payment processor detected: braintreegateway.com; Payment processor detected: braintreegateway.com. Payment Card Industry Data Security Standard — applies to organizations handling credit card data. - **[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 *3 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]** 3 third-party services across 3 categories — 3 third-party services detected across 3 categories: Analytics (1), Tag Management (1), Security (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. - **[INFO]** Google Tag Manager (Tag Management) — Detected via script URL. Typically collects: Orchestrates other tracking scripts, Page views. Privacy policy: https://policies.google.com/privacy. Data Processing Agreement available. - **[INFO]** reCAPTCHA (Security) — Detected via script URL. Typically collects: Browser behavior, Device info, IP address. Privacy policy: https://policies.google.com/privacy. Data Processing Agreement available. ### Compliance Badges (B — 70/100) *1 compliance badge(s) detected* - **[PASS]** Better Business Bureau badge detected — Found via image alt text: 'bbb rating button'. Note: the presence of a badge does not verify the certification is current or valid. --- ## 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 (F — 30/100) *No cache headers* - **[WARNING]** No Cache-Control header found — Browsers will use heuristic caching, which can be unpredictable. Set explicit cache headers. ### 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. - **[PASS]** TLS 1.3 in use (fastest handshake, 1-RTT) --- ## Accessibility ### Landmark Structure (A — 90/100) *19 landmarks* - **[PASS]**
landmark present - **[PASS]** 4