# BeaverCheck Audit Report — https://channel4.com

**Date:** April 21, 2026  
**URL:** https://channel4.com  
**Overall Grade:** C (70/100)  
**Report:** https://beavercheck.com/results/26d2b90c-796a-4fad-a1e4-c337834c329c

## 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 12.0 MB (7.0 MB transferred) — Performance > Page Weight Budget
5. **[CRITICAL]** 13 link(s) with no accessible text — Accessibility > Link & Button Quality

---

## Lighthouse Scores

| Category | Score |
|----------|-------|
| Performance | 30 |
| Accessibility | 96 |
| Best Practices | 77 |
| SEO | 100 |

---

## 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 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 1.2, 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 156 days)
- **[PASS]** Certificate chain has 4 certificates
- **[PASS]** Certificate uses modern signature algorithm
- **[PASS]** Certificate covers 36 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 22 external resources have SRI*

- **[WARNING]** External script from et.channel4.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from cdn-pci.optimizely.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from static.channel4.com 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 snippet.maze.co lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from static.c4assets.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from static.c4assets.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External link from fonts.channel4.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External link from all4nav.channel4.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from snippet.maze.co lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External link from www.channel4.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from static.c4assets.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from mssl.fwmrm.net lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from static.c4assets.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from static.c4assets.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External link from www.channel4.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External link from www.channel4.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External link from www.channel4.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from static.c4assets.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from all4nav.channel4.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from static.c4assets.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from www.channel4.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 (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)

*7.0 MB transferred, 167 requests*

- **[CRITICAL]** Page weighs 12.0 MB (7.0 MB transferred)
- **[WARNING]** Images are 5.5 MB — compress or use modern formats — Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
- **[WARNING]** JavaScript is 1.1 MB — consider code splitting or lazy loading — Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
- **[WARNING]** 167 HTTP requests — consider bundling or reducing — Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.
- **[INFO]** Estimated 1.5 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 (7.0 MiB of 7.0 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 (C — 60/100)

*97 images, 0 KB saveable*

- **[WARNING]** https://all4nav.channel4.com/globalnav/static/2.1.... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://ic.c4assets.com/bips/159381/44CD9E43-00D4-... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://all4nav.channel4.com/globalnav/static/2.1.... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://all4nav.channel4.com/globalnav/static/2.1.... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://ic.c4assets.com/bips/159381/23964E91-3A84-... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.

### JS Execution Cost (F — 20/100)

*8897ms total JS execution*

- **[WARNING]** https://www.channel4.com/homepage/static/2.1.47/js...: 3462ms CPU time
- **[WARNING]** https://cdn.optimizely.com/js/8171642667.js: 1231ms CPU time
- **[WARNING]** https://www.channel4.com/hEtR9X5wZ/joG_KTcx/ru42TW...: 1042ms CPU time
- **[WARNING]** Unattributable: 997ms CPU time
- **[WARNING]** https://all4nav.channel4.com/v1/js/loader.js?fullN...: 728ms CPU time
- **[WARNING]** Third-party scripts: 8897ms (100% of total)

### Font Loading (A+ — 100/100)

*6 fonts (137 KB)*

- **[INFO]** 6 font(s) use font-display: swap (FOUT risk but functional)

### JS Bundles (F — 30/100)

*26 scripts, 382 KB unused*

- **[WARNING]** https://www.channel4.com/homepage/static/2.1.47/js...: 156 KB unused (51%) — Consider code splitting or tree shaking to reduce unused code.
- **[WARNING]** https://all4nav.channel4.com/v1/js/loader.js?fullN...: 70 KB unused (40%) — Consider code splitting or tree shaking to reduce unused code.
- **[WARNING]** https://cdn.optimizely.com/js/8171642667.js: 53 KB unused (40%) — Consider code splitting or tree shaking to reduce unused code.
- **[WARNING]** https://cdn.optimizely.com/js/8171642667.js: unminified — 20 KB could be saved
- **[WARNING]** https://www.channel4.com/hEtR9X5wZ/joG_KTcx/ru42TW...: 37 KB unused (21%) — Consider code splitting or tree shaking to reduce unused code.
- **[WARNING]** https://s.go-mpulse.net/boomerang/XF74S-NBRPP-BVVG...: 36 KB unused (65%) — Consider code splitting or tree shaking to reduce unused code.
- **[INFO]** Total unused JavaScript: 382 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)

*No optimization needed*

- **[PASS]** No resource hint issues

### Page Weight Inventory (D — 40/100)

*167 resources · 7.0 MB · 382 KB savings available*

- **[WARNING]** Page weight 6.0 MB over 1MB target
- **[INFO]** ~382 KB of savings available
- **[WARNING]** 166 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 <head>

### Third-Party Resources (A+ — 100/100)

*No third-party resources detected*


---

## Content Quality

### Links (F — 40/100)

*85 links checked, 73 healthy, 12 broken*

- **[CRITICAL]** 73 of 85 links are healthy
- **[WARNING]** Broken link: https://channel4.com/favicon.ico — Found in <link href>. Returns HTTP 403.
- **[WARNING]** Broken link: https://channel4.com/favicon.svg — Found in <link href>. Returns HTTP 403.
- **[WARNING]** Broken link: https://channel4.com/apple-touch-icon.png — Found in <link href>. Returns HTTP 403.
- **[WARNING]** Broken link: https://channel4.com/favicon-32x32.png — Found in <link href>. Returns HTTP 403.
- **[WARNING]** Broken link: https://channel4.com/favicon-16x16.png — Found in <link href>. Returns HTTP 403.
- **[WARNING]** Broken link: https://channel4.com/site.webmanifest — Found in <link href>. Returns HTTP 403.
- **[WARNING]** Broken link: https://channel4.com/safari-pinned-tab.svg — Found in <link href>. Returns HTTP 403.
- **[WARNING]** Broken link: https://channel4.com/homepage/static/2.1.47/css/style.css — Found in <link href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: http://channel4.com/cookies — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: http://channel4.com/privacy — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://channel4.com/ — Found in <a href>. Returns HTTP 403.
- **[WARNING]** Broken link: https://channel4.com/homepage/static/2.1.47/js/homepage.js — Found in <script src>. Returns HTTP 403.

### Mixed Content (A+ — 100/100)

*No mixed content detected — all resources use HTTPS.*

- **[PASS]** No mixed content detected — all resources use HTTPS

### Open Graph (F — 0/100)

*No Open Graph tags found — social sharing previews will be generic.*

- **[WARNING]** No Open Graph meta tags found — Without og:title, og:description, and og:image, social media platforms will generate a generic preview when your page is shared.

### 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, 8 ms lookup*

- **[PASS]** Resolves to 2 IPv4 address(es)
- **[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: 8 ms

### Redirect Chain (A — 90/100)

*1 redirect(s), 453 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 1001 URLs*

- **[PASS]** robots.txt is present
- **[PASS]** sitemap.xml is present
- **[PASS]** sitemap.xml is valid XML
- **[PASS]** sitemap.xml contains 1001 entries
- **[PASS]** robots.txt references sitemap

### URL Variants (A+ — 100/100)

*www/non-www, trailing slash, HTTP→HTTPS*

- **[PASS]** HTTP correctly 301-redirects to HTTPS

### Domain Intelligence (A+ — 100/100)

*channel4.com — via CSC Corporate Domains, Inc., 30 years, 10 months old, hosted on AWS*

- **[PASS]** Domain registered until Nov 16, 2026 (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: CSC Corporate Domains, 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: AWS

---

## Compliance

### WCAG Compliance (A+ — 100/100)

*No testable criteria*


### Cookie Consent & Privacy (A+ — 95/100)

*privacy policy found*

- **[PASS]** Privacy policy link found
- **[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]** <html lang> attribute is present
- **[PASS]** <html lang> value is valid
- **[INFO]** No Content-Language HTTP header
- **[INFO]** Language signals are inconsistent — The <html lang> 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 (A+ — 95/100)

*6 trackers detected*

- **[INFO]** 6 third-party trackers detected — Found 5 analytics, 0 advertising, 0 marketing, 1 tag manager trackers.

### Cookie & Tracker Inventory (A+ — 100/100)

*0 cookies · 6 trackers · 0 pre-consent*

- **[INFO]** 6 third-party tracker(s) detected on page

---

## Legal

### Legal Page Ecosystem (B — 75/100)

*3 of 7 expected legal pages detected*

- **[PASS]** Privacy Policy detected — Found at http://channel4.com/privacy.
- **[PASS]** Terms of Service detected — Found at https://www.channel4.com/4viewers/ts-and-cs?intcmp=platform:footer:terms::|::||, linked from footer.
- **[PASS]** Cookie Policy detected — Found at http://channel4.com/cookies.
- **[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]** 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 (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.

---

## Accessibility

### Landmark Structure (A — 90/100)

*6 landmarks*

- **[PASS]** <main> landmark present
- **[PASS]** 3 <nav> landmark(s) found
- **[WARNING]** 3 of 3 <nav> elements are unlabeled — Multiple navigations need aria-label to distinguish them for screen readers.
- **[PASS]** Skip navigation link present

### Heading Hierarchy (A — 85/100)

*6 headings, 1 skip(s)*

- **[PASS]** Single H1 present
- **[WARNING]** Heading level skipped: H1 → H3 (missing H2) — Skipping heading levels breaks the document outline. Screen readers may interpret missing levels as structural errors.
- **[INFO]** 4 hidden heading(s) (aria-hidden)

### Alt Text Quality (A+ — 100/100)

*All 12 images OK*

- **[PASS]** 10 decorative image(s) correctly marked
- **[PASS]** 2 image(s) with good alt text

### Form Accessibility (A+ — 100/100)

*All 1 controls labeled*

- **[PASS]** 1 control(s) properly labeled

### Link & Button Quality (D — 44/100)

*13 issue(s) across 63 links and 3 buttons*

- **[CRITICAL]** 13 link(s) with no accessible text — Links without text are announced as raw URLs by screen readers.
- **[CRITICAL]** 6 image-only link(s) without alt text — Image-only links need alt text on the image (or aria-label on the link) so screen readers can announce them.
- **[WARNING]** 2 link(s) open in new tab without warning — Add '(opens in new tab)' to link text or aria-label.
- **[PASS]** 42 link(s) with descriptive text

---

## UX

### 404 Error Page (F — 5/100)

*HTTP 403, bare page*

- **[WARNING]** Unexpected status code: HTTP 403 — Expected HTTP 404 but received 403. This may confuse search engine crawlers.
- **[WARNING]** Bare server default 404 page — The 404 page has no custom styling. Users hitting a broken link see a generic error with no way to navigate back. Add a custom 404 page with your site navigation and a search bar.

### Favicon & Branding (C — 65/100)

*5 icon(s) detected*

- **[WARNING]** No favicon.ico at site root — Some older browsers, bookmark tools, and RSS readers look for /favicon.ico. Add one as a fallback.
- **[PASS]** HTML icon links detected
- **[PASS]** Apple touch icon present
- **[PASS]** SVG favicon detected — scales perfectly to any size
- **[PASS]** Multiple icon sizes detected

### Web Manifest (D — 40/100)

*Not found*

- **[INFO]** No web manifest found — No manifest at standard paths (/manifest.json, /site.webmanifest). A manifest is optional but enables PWA features like home screen installation and standalone display.

### Dark Mode Support (D — 45/100)

*Theme color only*

- **[INFO]** Theme-color present but no dark variant — A theme-color is set but no dark-specific variant was found. The browser toolbar may not adapt for dark mode users.
- **[INFO]** No dark mode signals detected — Consider adding CSS with @media (prefers-color-scheme: dark) and <meta name='color-scheme' content='light dark'>.
- **[INFO]** Detection limited to meta tags and inline styles — External CSS files may contain prefers-color-scheme rules not visible to this scan.

### Print Stylesheet (D — 40/100)

*No print styles*

- **[INFO]** No print-specific styles detected — When users print this page, they get the screen layout including navigation and non-essential elements. Add @media print rules to hide navigation and optimize layout for paper.

### Navigation UX (F — 30/100)

*1 navigation pattern(s)*

- **[PASS]** Skip navigation link detected
- **[PASS]** 3 navigation landmark(s) detected

---

## SEO

### Canonical URL (B — 75/100)

*Minor issues*

- **[PASS]** Canonical tag present
- **[PASS]** Canonical is self-referencing
- **[PASS]** Canonical matches final URL after redirects
- **[CRITICAL]** Canonical target returns 403 — Search engines cannot follow this canonical, effectively orphaning this page.
- **[INFO]** Canonical points to a different domain

### Meta Tags (A+ — 100/100)

*Title optimized*

- **[PASS]** Page title is set
- **[PASS]** Title length (34 chars) is optimal
- **[PASS]** Title and H1 are well-aligned

### Content Depth (F — 25/100)

*222 words, Difficult*

- **[WARNING]** Page has 222 words — thin content — Most well-ranking pages have 300+ words of substantive content.
- **[INFO]** Text-to-HTML ratio is 2% — Very low ratio suggests heavy framework overhead or boilerplate.
- **[INFO]** Reading level: Difficult (grade 17)
- **[WARNING]** Thin content — only 222 words

### Internal Links (A+ — 100/100)

*15 internal, 48 external*

- **[PASS]** 15 internal links (24%)
- **[PASS]** 79% of links use descriptive anchor text
- **[INFO]** 15 internal / 48 external links

### Image SEO (A+ — 100/100)

*12 images, 6 descriptive filenames*

- **[INFO]** 6 image(s) have hash/generic filenames

### Hreflang

*0 hreflang tags*


---

## Sustainability

### CO2 Per Page Load (F — 30/100)

*1.98g CO2 per view*

- **[WARNING]** 1.98g CO2 per page view — This page transfers 7.0 MB, producing an estimated 1.98g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.37g, network 0.34g, end-user device 1.27g.
- **[INFO]** At 10,000 monthly views: 237.8 kg CO2/year — With 10,000 page views per month, this page would generate approximately 237.8 kg of CO2 annually — equivalent to charging 29722 smartphones.

### Green Hosting (D — 50/100)

*Unknown*

- **[INFO]** Hosting provider could not be identified — Without knowing the provider, we cannot determine their energy sourcing. Check with your hosting provider about their renewable energy commitments.
- **[INFO]** Green hosting status based on known provider commitments — Green hosting detection uses a curated database of provider renewable energy commitments. This is not a real-time verification. For authoritative checks, visit thegreenwebfoundation.org.

### Repeat Visit Weight (A+ — 100/100)

*100% cached*

- **[PASS]** 100% reduction on repeat visits — Returning visitors download only 7 KB (vs 7164 KB first visit). 166 of 167 resources are served from browser cache, saving 1.98g CO2 per repeat visit.
- **[INFO]** Repeat visit: 0.00g CO2 (first visit: 1.98g)

### Carbon Budget (F — 30/100)

*89th percentile*

- **[WARNING]** 1.98g CO2 — above the median website (0.60g) — Heavier than an estimated 11% of websites. Reducing page weight, optimizing images, and removing unused JavaScript would lower the carbon footprint. See the Performance tab.
- **[INFO]** Estimated 89th percentile — Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.

### Transfer Efficiency (A+ — 100/100)

*95% efficient*

- **[PASS]** Transfer efficiency: 95% — Only 381 KB of potential savings identified. Your page is well-optimized for size.

---

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*Generated by [BeaverCheck](https://beavercheck.com) — https://beavercheck.com/results/26d2b90c-796a-4fad-a1e4-c337834c329c*