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

**Date:** April 16, 2026  
**URL:** https://britannica.com  
**Overall Grade:** C (71/100)  
**Report:** https://beavercheck.com/results/e1432918-d135-4895-bf8a-aa530f2b589e

## 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 13.2 MB (4.3 MB transferred) — Performance > Page Weight Budget
5. **[CRITICAL]** 1 image(s) missing alt attribute — Accessibility > Alt Text Quality

---

## Lighthouse Scores

| Category | Score |
|----------|-------|
| Performance | 29 |
| Accessibility | 82 |
| Best Practices | 73 |
| SEO | 92 |

---

## Security

### Security Headers (F — 5/100)

*1 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
- **[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 1.2, 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 146 days)
- **[PASS]** Certificate chain has 3 certificates
- **[PASS]** Certificate uses modern signature algorithm
- **[PASS]** Certificate covers 2 domain(s)
- **[PASS]** Certificate is issued by a trusted CA

### Cookie Security (A+ — 100/100)

*No cookies set — no cookie security risks*

- **[PASS]** No cookies set — no cookie security risks

---

## Advanced Security

### Subresource Integrity (D — 40/100)

*1 of 44 external resources have SRI*

- **[WARNING]** External script from cdn.confiant-integrations.net lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from cdn.confiant-integrations.net lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from cdn.confiant-integrations.net lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from cdn.hadronid.net lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from sb.scorecardresearch.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 launchpad.privacymanager.io lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from static.kueezrtb.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from JRyhoywLYXNLYMAhs.ay.delivery lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from JRyhoywLYXNLYMAhs.ay.delivery lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from c.amazon-adsystem.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from JRyhoywLYXNLYMAhs.ay.delivery lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from securepubads.g.doubleclick.net lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from JRyhoywLYXNLYMAhs.ay.delivery lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from JRyhoywLYXNLYMAhs.ay.delivery 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 cdn.britannica.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External link from cdn.britannica.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External link from cdn.britannica.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External link from cdn.britannica.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 securepubads.g.doubleclick.net lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from static.kueezrtb.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from JRyhoywLYXNLYMAhs.ay.delivery lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from cdn.confiant-integrations.net lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from b-code.liadm.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from jryhoywlyxnlymahs.ay.delivery lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from jryhoywlyxnlymahs.ay.delivery lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from jryhoywlyxnlymahs.ay.delivery lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External link from cdn.britannica.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External link from cdn.britannica.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from config.aps.amazon-adsystem.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from secure.cdn.fastclick.net lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from tags.crwdcntrl.net lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from secure.cdn.fastclick.net lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from secure.cdn.fastclick.net lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from secure.cdn.fastclick.net lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from ats-wrapper.privacymanager.io lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from launchpad-wrapper.privacymanager.io lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from JRyhoywLYXNLYMAhs.ay.delivery lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from cdn.britannica.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[PASS]** script from static.cloudflareinsights.com has SRI protection
- **[WARNING]** External script from www.britannica.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)

*4.3 MB transferred, 458 requests*

- **[CRITICAL]** Page weighs 13.2 MB (4.3 MB transferred)
- **[WARNING]** JavaScript is 2.9 MB — consider code splitting or lazy loading — Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
- **[WARNING]** 458 HTTP requests — consider bundling or reducing — Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.
- **[INFO]** Estimated 0.91 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 (4.3 MiB of 4.3 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)

*138 images, 0 KB saveable*

- **[WARNING]** https://cdn.britannica.com/money/assets/britannica... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://cdn.britannica.com/marketing/Premium-allde... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://cdn.britannica.com/kstm/GAME/missingLetter... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://cdn.britannica.com/kstm/GAME/pilfer.png?w=... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://cdn.britannica.com/30/153530-050-9A8F7D46/... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://cdn.britannica.com/39/264539-159-31C4BE40/... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://cdn.britannica.com/kstm/GAME/tightrope_pro... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://cdn.britannica.com/07/278607-049-30717896/... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://cdn.britannica.com/39/155939-050-A709B5D7/... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://cdn.britannica.com/marketing/Loop-promo-4-... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://cdn.britannica.com/kstm/GAME/revealed-485-... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://cdn.britannica.com/49/94449-050-ECB0E7C2/A... 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.
- **[WARNING]** https://cdn.britannica.com/kstm/GAME/Reunion4-3Big... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://cdn.britannica.com/09/265709-050-11F07D26/... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://cdn.britannica.com/68/274968-159-3B823731/... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://cdn.britannica.com/kstm/GAME/quordle.jpeg?... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://cdn.britannica.com/kstm/GAME/blossom1x.jpe... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://cdn.britannica.com/kstm/GAME/octordle-4x3.... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.

### JS Execution Cost (F — 20/100)

*14457ms total JS execution*

- **[WARNING]** https://www.britannica.com/: 2411ms CPU time
- **[WARNING]** Unattributable: 1827ms CPU time
- **[WARNING]** https://jryhoywlyxnlymahs.ay.delivery/manager-scri...: 1785ms CPU time
- **[WARNING]** https://cdn.confiant-integrations.net/video/202603...: 794ms CPU time
- **[WARNING]** https://www.googletagmanager.com/gtm.js?id=GTM-5W6...: 787ms CPU time
- **[WARNING]** Third-party scripts: 14457ms (100% of total)

### Font Loading (A+ — 100/100)

*1 fonts (126 KB)*

- **[INFO]** 1 font(s) use font-display: swap (FOUT risk but functional)

### JS Bundles (F — 20/100)

*82 scripts, 868 KB unused*

- **[WARNING]** https://jryhoywlyxnlymahs.ay.delivery/manager-scri...: 99 KB unused (55%) — Consider code splitting or tree shaking to reduce unused code.
- **[WARNING]** https://securepubads.g.doubleclick.net/pagead/mana...: 92 KB unused (49%) — Consider code splitting or tree shaking to reduce unused code.
- **[WARNING]** https://jryhoywlyxnlymahs.ay.delivery/floorPrice/v...: 80 KB unused (100%) — Consider code splitting or tree shaking to reduce unused code.
- **[WARNING]** https://www.googletagmanager.com/gtag/js?id=G-TE6Y...: 68 KB unused (39%) — Consider code splitting or tree shaking to reduce unused code.
- **[WARNING]** https://cdn.confiant-integrations.net/gptprebidnat...: 67 KB unused (48%) — Consider code splitting or tree shaking to reduce unused code.
- **[INFO]** Total unused JavaScript: 868 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)

*6 hints, 0 missing preconnects*

- **[PASS]** Page uses 6 resource hint(s)

### Page Weight Inventory (F — 25/100)

*458 resources · 4.3 MB · 868 KB savings available*

- **[WARNING]** Page weight 3.3 MB over 1MB target
- **[INFO]** ~868 KB of savings available
- **[WARNING]** 457 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 (B — 85/100)

*200 links checked, 197 healthy, 3 broken*

- **[WARNING]** 197 of 200 links are healthy
- **[WARNING]** Broken link: https://cdn.britannica.com/mendel-resources/3-180 — Found in <link href>. Returns HTTP 404.
- **[WARNING]** Broken link: https://fonts.googleapis.com/ — Found in <link href>. Returns HTTP 404.
- **[CRITICAL]** Broken link: https://britannica.com/chatbot — Found in <a href>. 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 (A — 90/100)

*Open Graph tags are well configured for social sharing.*

- **[CRITICAL]** og:image is not reachable — The og:image URL could not be fetched. Social platforms won't be able to display it.

### Structured Data (A — 90/100)

*1 JSON-LD block(s) found — structured data is well configured.*

- **[WARNING]** Missing required property "name" for WebSite — The "name" property is required for the WebSite schema type.
- **[INFO]** Missing recommended property "description" for WebSite — Adding "description" can improve how search engines display your content.

---

## Infrastructure

### DNS Records (A+ — 100/100)

*2 A records, 114 ms lookup*

- **[PASS]** Resolves to 2 IPv4 address(es)
- **[INFO]** No IPv6 (AAAA) records
- **[PASS]** 4 nameserver(s) configured
- **[INFO]** No MX records — email not configured via DNS
- **[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: 114 ms

### Redirect Chain (B — 70/100)

*1 redirect(s), 1220 ms total*

- **[PASS]** Single redirect
- **[INFO]** WWW normalization redirect
- **[WARNING]** Redirect overhead: 1220 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 110 URLs*

- **[PASS]** robots.txt is present
- **[PASS]** sitemap.xml is present
- **[PASS]** sitemap.xml is valid XML
- **[PASS]** sitemap.xml contains 110 entries
- **[PASS]** Sitemap index with 110 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 — 90/100)

*britannica.com — via CSC Corporate Domains, Inc., 31 years, 3 months old, hosted on AWS*

- **[WARNING]** Domain expires in 57 days — Consider enabling auto-renewal to prevent accidental expiration.
- **[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 (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]** <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 (D — 40/100)

*17 trackers detected*

- **[INFO]** 17 third-party trackers detected — Found 5 analytics, 11 advertising, 0 marketing, 1 tag manager trackers.
- **[WARNING]** 11 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 17 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 · 17 trackers · 0 pre-consent*

- **[INFO]** 17 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://corporate.britannica.com/privacy-policy, linked from footer.
- **[PASS]** Terms of Service detected — Found at https://corporate.britannica.com/termsofuse.html, 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)

*©2026 Encyclopædia Britannica*

- **[PASS]** Copyright notice is up to date — Copyright notice is up to date: ©2026 Encyclopædia Britannica
- **[PASS]** Copyright holder: Encyclopædia Britannica

### 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: European TLD detected: .es; 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

*2 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]** 2 third-party services across 2 categories — 2 third-party services detected across 2 categories: Analytics (1), Tag Management (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.

### 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 (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 (B — 75/100)

*3 landmarks*

- **[PASS]** <main> landmark present
- **[WARNING]** No <nav> landmark found
- **[WARNING]** Skip navigation link is missing (WCAG 2.4.1) — Add a skip link as the first focusable element so keyboard users can bypass repeated navigation.

### Heading Hierarchy (A — 90/100)

*18 headings*

- **[WARNING]** Multiple H1 headings (2 found) — A page should have only one H1. Multiple H1s dilute the document outline.

### Alt Text Quality (C — 65/100)

*1 of 61 images have issues*

- **[CRITICAL]** 1 image(s) missing alt attribute — Images without alt text are invisible to screen readers.
- **[CRITICAL]** 1 image-in-link without alt text — An image inside a link with no alt creates an empty link.
- **[INFO]** 15 image(s) with alt text over 125 characters
- **[PASS]** 1 decorative image(s) correctly marked
- **[PASS]** 44 image(s) with good alt text

### Form Accessibility (A+ — 100/100)

*All 3 controls labeled*

- **[PASS]** 3 control(s) properly labeled

### Link & Button Quality (C — 58/100)

*4 issue(s) across 214 links and 20 buttons*

- **[CRITICAL]** 1 link(s) with no accessible text — Links without text are announced as raw URLs by screen readers.
- **[WARNING]** 31 link(s) open in new tab without warning — Add '(opens in new tab)' to link text or aria-label.
- **[CRITICAL]** 3 button(s) with no accessible text — Icon-only buttons need an aria-label so screen readers can announce them.
- **[PASS]** 182 link(s) with descriptive text

---

## UX

### 404 Error Page (B — 80/100)

*HTTP 404, custom page*

- **[PASS]** Correct 404 status code returned
- **[PASS]** Custom styled 404 page
- **[PASS]** Navigation links present on 404 page
- **[PASS]** Homepage link present on 404 page

### Favicon & Branding (F — 15/100)

*1 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
- **[INFO]** No apple-touch-icon detected — iOS devices use this when users add your site to their home screen. Add <link rel='apple-touch-icon' sizes='180x180' href='/apple-touch-icon.png'>.

### 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 — 40/100)

*No dark mode signals*

- **[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 — 0/100)

*No navigation patterns*

- **[INFO]** No breadcrumbs, search, or skip link detected — These navigation aids help users orient themselves and find content efficiently, especially on large sites.

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## SEO

### Canonical URL (A — 85/100)

*Minor issues*

- **[PASS]** Canonical tag present
- **[WARNING]** Canonical does not match final URL (https://www.britannica.com:443/)
- **[PASS]** Canonical target returns 200
- **[INFO]** Canonical points to a different domain

### Meta Tags (A+ — 100/100)

*Title optimized*

- **[PASS]** Page title is set
- **[PASS]** Title length (36 chars) is optimal
- **[PASS]** Title and H1 are well-aligned

### Content Depth (A — 85/100)

*1337 words, Difficult*

- **[PASS]** Page has 1337 words — good depth for search engines
- **[INFO]** Text-to-HTML ratio is 1% — Very low ratio suggests heavy framework overhead or boilerplate.
- **[INFO]** Reading level: Difficult (grade 11)

### Internal Links (A+ — 95/100)

*78 internal, 136 external*

- **[PASS]** 78 internal links (36%)
- **[PASS]** 100% of links use descriptive anchor text
- **[INFO]** Page has 214 links — consider reducing
- **[INFO]** 78 internal / 136 external links

### Image SEO (A+ — 95/100)

*61 images, 61 descriptive filenames*

- **[PASS]** All images have descriptive filenames
- **[INFO]** 1 image(s) missing alt text — see Accessibility tab

### Hreflang

*0 hreflang tags*


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## Sustainability

### CO2 Per Page Load (D — 50/100)

*1.23g CO2 per view*

- **[WARNING]** 1.23g CO2 per page view — This page transfers 4.3 MB, producing an estimated 1.23g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.23g, network 0.21g, end-user device 0.79g.
- **[INFO]** At 10,000 monthly views: 147.3 kg CO2/year — With 10,000 page views per month, this page would generate approximately 147.3 kg of CO2 annually — equivalent to charging 18408 smartphones.

### Green Hosting (D — 40/100)

*Not green*

- **[INFO]** No confirmed renewable energy commitment detected — Consider providers like Cloudflare, Google Cloud, or Vercel that match 100% of their energy use with renewables.
- **[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)

*97% cached*

- **[PASS]** 97% reduction on repeat visits — Returning visitors download only 145 KB (vs 4437 KB first visit). 401 of 458 resources are served from browser cache, saving 1.19g CO2 per repeat visit.
- **[INFO]** Repeat visit: 0.04g CO2 (first visit: 1.23g)

### Carbon Budget (D — 50/100)

*67th percentile*

- **[WARNING]** 1.23g CO2 — above the median website (0.60g) — Heavier than an estimated 33% of websites. Reducing page weight, optimizing images, and removing unused JavaScript would lower the carbon footprint. See the Performance tab.
- **[INFO]** Estimated 67th percentile — Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.

### Transfer Efficiency (B — 80/100)

*80% efficient*

- **[INFO]** Transfer efficiency: 80% — An estimated 867 KB (20%) could be eliminated: 0 KB via better compression, 0 KB via modern image formats, 867 KB of unused JavaScript. This wasted data produces 0.24g of unnecessary CO2 per page view.

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*Generated by [BeaverCheck](https://beavercheck.com) — https://beavercheck.com/results/e1432918-d135-4895-bf8a-aa530f2b589e*
