# BeaverCheck Audit Report — https://mimecast.com **Date:** April 21, 2026 **URL:** https://mimecast.com **Overall Grade:** C (72/100) **Report:** https://beavercheck.com/results/fdb822a9-e3a0-4ae7-bf0f-9f6192e9a5e0 ## 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 13.1 MB (8.6 MB transferred) — Performance > Page Weight Budget 5. **[CRITICAL]** 3 image(s) missing alt attribute — Accessibility > Alt Text Quality --- ## Lighthouse Scores | Category | Score | |----------|-------| | Performance | 19 | | Accessibility | 92 | | Best Practices | 77 | | SEO | 92 | --- ## 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 1.3, 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 220 days) - **[PASS]** Certificate chain has 2 certificates - **[PASS]** Certificate uses modern signature algorithm - **[PASS]** Certificate covers 35 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 33 external resources have SRI* - **[WARNING]** External script from scripts.clarity.ms lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from www.clarity.ms lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from bttrack.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from j.6sc.co 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 lonrtp1-cdn.marketo.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from pixel.byspotify.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from scout-cdn.salesloft.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from www.redditstatic.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from cdn.mouseflow.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from snap.licdn.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from bat.bing.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. - **[WARNING]** External script from unpkg.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 unpkg.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 munchkin.marketo.net lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from cdn.optimizely.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from cdn.jsdelivr.net lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from cdn.cr-relay.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from cdn.jsdelivr.net lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from googleads.g.doubleclick.net lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from bat.bing.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from bat.bing.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External link from rtp-static.marketo.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 j.6sc.co lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from tracker.pixeltracker.co lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from cdn.bttrack.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from ug-webapp-public-production.s3.amazonaws.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from cdn.bttrack.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* - **[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 (F — 0/100) *8.6 MB transferred, 222 requests* - **[CRITICAL]** Page weighs 13.1 MB (8.6 MB transferred) - **[WARNING]** Images are 5.2 MB — compress or use modern formats — Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size. - **[WARNING]** JavaScript is 2.0 MB — consider code splitting or lazy loading — Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts. - **[INFO]** CSS is 405 KB — consider purging unused styles — Remove unused CSS rules with tools like PurgeCSS to reduce stylesheet size. - **[INFO]** Fonts are 250 KB — consider subsetting or using system fonts — Subset fonts to include only used characters, or switch to system font stacks. - **[WARNING]** 222 HTTP requests — consider bundling or reducing — Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests. - **[INFO]** Estimated 1.8 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 (8.6 MiB of 8.6 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) *100 images, 0 KB saveable* - **[WARNING]** https://assets.mimecast.com/api/public/content/96d... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS. - **[WARNING]** https://assets.mimecast.com/api/public/content/f51... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS. - **[WARNING]** https://assets.mimecast.com/api/public/content/40f... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS. - **[WARNING]** https://assets.mimecast.com/api/public/content/504... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS. - **[WARNING]** https://assets.mimecast.com/api/public/content/faa... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS. - **[WARNING]** https://assets.mimecast.com/api/public/content/502... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS. - **[WARNING]** https://assets.mimecast.com/api/public/content/3fa... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS. - **[WARNING]** https://assets.mimecast.com/api/public/content/747... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS. - **[WARNING]** https://assets.mimecast.com/api/public/content/477... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS. - **[WARNING]** https://assets.mimecast.com/api/public/content/e89... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS. - **[WARNING]** https://assets.mimecast.com/api/public/content/462... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS. - **[WARNING]** https://assets.mimecast.com/api/public/content/da2... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS. ### JS Execution Cost (F — 20/100) *10941ms total JS execution* - **[WARNING]** Unattributable: 2324ms CPU time - **[WARNING]** https://www.mimecast.com/: 2099ms CPU time - **[WARNING]** https://fpjscdn.net/v3/9bsIAwFA2Yvt74r1OAYZ: 1519ms CPU time - **[WARNING]** https://www.googletagmanager.com/gtm.js?id=GTM-M27...: 1222ms CPU time - **[WARNING]** https://unpkg.com/@lottiefiles/dotlottie-wc@0.9.12...: 569ms CPU time - **[WARNING]** Third-party scripts: 10941ms (100% of total) ### Font Loading (A+ — 100/100) *6 fonts (250 KB)* - **[INFO]** 6 font(s) use font-display: swap (FOUT risk but functional) ### JS Bundles (F — 10/100) *51 scripts, 1.1 MB unused* - **[WARNING]** https://www.mimecast.com/dist/site.ff160e92f68ef96...: 650 KB unused (90%) — Consider code splitting or tree shaking to reduce unused code. - **[WARNING]** https://rtp-static.marketo.com/rtp/libs/jqueryui/1...: 106 KB unused (85%) — Consider code splitting or tree shaking to reduce unused code. - **[WARNING]** https://rtp-static.marketo.com/rtp/libs/jqueryui/1...: unminified — 45 KB could be saved - **[WARNING]** https://cdn.cookielaw.org/scripttemplates/202405.1...: 68 KB unused (62%) — Consider code splitting or tree shaking to reduce unused code. - **[WARNING]** https://cdn.optimizely.com/js/30177210136.js: 64 KB unused (44%) — Consider code splitting or tree shaking to reduce unused code. - **[WARNING]** https://www.googletagmanager.com/gtag/js?id=G-2RRJ...: 64 KB unused (37%) — 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) *No optimization needed* - **[PASS]** No resource hint issues ### Page Weight Inventory (F — 20/100) *222 resources · 8.6 MB · 1.1 MB savings available* - **[WARNING]** Page weight 7.6 MB over 1MB target - **[INFO]** ~1.1 MB of savings available - **[WARNING]** 221 third-party resources (100% of weight) - **[INFO]** 12 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 (A+ — 100/100) *200 links checked, 200 healthy, 0 broken* - **[PASS]** 200 of 200 links are healthy ### 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:image — The og:image tag provides a preview image 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 (F — 55/100) *4 JSON-LD block(s) found — issues found that may affect search visibility.* - **[WARNING]** Missing or invalid @context in block #1 — The @context should be "https://schema.org" for search engines to recognize the data. - **[WARNING]** Missing or invalid @context in block #2 — The @context should be "https://schema.org" for search engines to recognize the data. - **[WARNING]** Missing or invalid @context in block #4 — The @context should be "https://schema.org" for search engines to recognize the data. - **[INFO]** Missing recommended property "description" for WebSite — Adding "description" can improve how search engines display your content. - **[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. - **[PASS]** 4 JSON-LD blocks found --- ## Infrastructure ### DNS Records (A — 85/100) *1 A records, 1107 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 - **[WARNING]** DNS resolution is slow (1107 ms) — Slow DNS adds latency to every page load. Consider a faster DNS provider. ### Redirect Chain (B — 70/100) *1 redirect(s), 1382 ms total* - **[PASS]** Single redirect - **[INFO]** WWW normalization redirect - **[WARNING]** Redirect overhead: 1382 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 5 URLs* - **[PASS]** robots.txt is present - **[PASS]** sitemap.xml is present - **[PASS]** sitemap.xml is valid XML - **[PASS]** sitemap.xml contains 5 entries - **[PASS]** Sitemap index with 5 child sitemaps - **[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) *mimecast.com — via MarkMonitor Inc., 23 years, 6 months old, hosted on SECTIONIO-AS-AP SQUIXA PTY LIMITED, AU* - **[PASS]** Domain registered until Dec 13, 2032 (6 years, 8 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: MarkMonitor Inc. - **[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: SECTIONIO-AS-AP SQUIXA PTY LIMITED, AU --- ## 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 (F — 30/100) *13 trackers detected* - **[INFO]** 13 third-party trackers detected — Found 7 analytics, 2 advertising, 3 marketing, 1 tag manager trackers. - **[WARNING]** 2 advertising/retargeting trackers detected — Advertising trackers collect user data for ad targeting. Under GDPR, these typically require explicit consent. - **[WARNING]** Trackers detected but no cookie policy found — This page loads 13 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. - **[WARNING]** Session replay tool detected: Microsoft Clarity — Session replay tools record user interactions. These require clear disclosure and often explicit consent under GDPR. ### Cookie & Tracker Inventory (A+ — 100/100) *0 cookies · 13 trackers · 0 pre-consent* - **[INFO]** 13 third-party tracker(s) detected on page --- ## Legal ### Legal Page Ecosystem (C — 60/100) *2 of 7 expected legal pages detected* - **[PASS]** Privacy Policy detected — Found at https://www.mimecast.com/privacy-preferences/, linked from footer. - **[PASS]** Terms of Service detected — Found at https://www.mimecast.com/legal/privacy-statement/, 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 (A+ — 100/100) *© 2003 - 2026 Mimecast Services Limited Back to Top This we…* - **[PASS]** Copyright notice is up to date — Copyright notice is up to date: © 2003 - 2026 Mimecast Services Limited Back to Top This website - **[PASS]** Copyright holder: Mimecast Services Limited Back to Top This website ### 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 (strong confidence) — Indicators suggesting GDPR may be relevant: Consent management platform detected: cookielaw.org; Text mentions: data protection; 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 *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), Advertising (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]** LinkedIn Insight (Advertising) — Detected via script URL. Typically collects: Page views, Conversions, Ad targeting, Professional demographics. Privacy policy: https://www.linkedin.com/legal/privacy-policy. Data Processing Agreement available. ### Compliance Badges (B — 70/100) *1 compliance badge(s) detected* - **[PASS]** TRUSTe / TrustArc badge detected — Found via body text: 'truste'. Note: the presence of a badge does not verify the certification is current or valid. --- ## Availability ### CDN & Delivery (B — 80/100) *Varnish* - **[PASS]** Site is served via Varnish CDN ### HTTP Caching (A — 90/100) *max-age=10368000 (17 weeks)* - **[PASS]** Cache-Control header is set - **[PASS]** Effective TTL: 17 weeks (max-age=10368000) - **[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. - **[PASS]** TLS 1.3 in use (fastest handshake, 1-RTT) --- ## Accessibility ### Landmark Structure (A+ — 100/100) *6 landmarks* - **[PASS]**
landmark present - **[PASS]** 1