# BeaverCheck Audit Report — https://letsencrypt.org

**Date:** April 4, 2026  
**URL:** https://letsencrypt.org  
**Overall Grade:** B (84/100)  
**Report:** https://beavercheck.com/results/73a9fe40-87c3-4cde-b045-09a5374aa5d3

## Top Findings

1. **[CRITICAL]** 'unsafe-eval' found in script source — Security > Content Security Policy
2. **[CRITICAL]** 'unsafe-inline' found in script source — Security > Content Security Policy
3. **[WARNING]** Cross-Origin-Embedder-Policy header is missing — Security > Security Headers
4. **[WARNING]** Cross-Origin-Opener-Policy header is missing — Security > Security Headers
5. **[WARNING]** HSTS is missing includeSubDomains — Security > Security Headers

---

## Lighthouse Scores

| Category | Score |
|----------|-------|
| Performance | 73 |
| Accessibility | 96 |
| Best Practices | 92 |
| SEO | 100 |

---

## Security

### Security Headers (B — 80/100)

*7 of 10 headers properly configured*

- **[WARNING]** HSTS is missing includeSubDomains — Without includeSubDomains, subdomains can still be accessed over HTTP.
- **[PASS]** X-Content-Type-Options is properly configured
- **[PASS]** X-Frame-Options is properly configured
- **[PASS]** Referrer-Policy is properly configured
- **[PASS]** Permissions-Policy is set
- **[PASS]** Content-Security-Policy is present
- **[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 (D — 45/100)

*4 of 10 CSP checks passed*

- **[INFO]** Raw CSP policy
- **[PASS]** default-src directive is set
- **[CRITICAL]** 'unsafe-inline' found in script source — 'unsafe-inline' allows inline <script> tags, defeating CSP against XSS. Remove it and use nonces or hashes instead.
- **[CRITICAL]** 'unsafe-eval' found in script source — 'unsafe-eval' allows eval() and similar functions, enabling code injection. Remove it.
- **[PASS]** No wildcard in script source
- **[PASS]** object-src falls back to default-src
- **[WARNING]** base-uri directive is missing — Without base-uri, attackers can inject a <base> tag to hijack relative URLs. Set it to 'self' or 'none'.
- **[PASS]** frame-ancestors directive is set
- **[WARNING]** form-action directive is missing — form-action restricts where forms can submit data, preventing form hijacking.
- **[INFO]** upgrade-insecure-requests is not set — This directive upgrades HTTP resources to HTTPS automatically, preventing mixed content.

### 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 62 days)
- **[PASS]** Certificate chain has 2 certificates
- **[PASS]** Certificate uses modern signature algorithm
- **[PASS]** Certificate covers 10 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 (A+ — 100/100)

*No external resources*

- **[PASS]** No external resources to protect

### 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 (A+ — 100/100)

*13 directives, 2 missing*

- **[PASS]** geolocation=() — blocked for all origins
- **[PASS]** midi=() — blocked for all origins
- **[PASS]** notifications=() — blocked for all origins
- **[PASS]** push=() — blocked for all origins
- **[PASS]** sync-xhr=() — blocked for all origins
- **[PASS]** microphone=() — blocked for all origins
- **[PASS]** camera=() — blocked for all origins
- **[PASS]** magnetometer=() — blocked for all origins
- **[PASS]** gyroscope=() — blocked for all origins
- **[INFO]** speaker=(self)
- **[PASS]** vibrate=() — blocked for all origins
- **[INFO]** fullscreen=(self)
- **[PASS]** interest-cohort=() — blocked for all origins
- **[INFO]** payment not restricted — Consider adding payment=() to block payment access from embedded content.
- **[INFO]** usb not restricted — Consider adding usb=() to block usb access from embedded content.

### CORS Configuration (B — 80/100)

*No CORS headers*

- **[PASS]** No CORS headers present — secure default

---

## Performance

### Page Weight Budget (A — 93/100)

*771 KB transferred, 24 requests*

- **[PASS]** Page weighs 2.0 MB (771 KB transferred)
- **[PASS]** 24 HTTP requests
- **[INFO]** Estimated 0.16 g CO2 per page load

### Third-Party Impact (A — 85/100)

*38% third-party, 0 ms blocking*

- **[INFO]** Third-party code accounts for 38% of page weight (290.0 KiB of 770.9 KiB)
- **[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)

*7 images, 0 KB saveable*

- **[WARNING]** https://letsencrypt.org/images/Divvi-Up-Large-Full... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://letsencrypt.org/images/ISRG-Logo-Blue.svg is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://letsencrypt.org/images/letsencrypt-logo-ho... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://letsencrypt.org/images/Prossimo%20Horizont... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.

### JS Execution Cost (D — 40/100)

*2070ms total JS execution*

- **[WARNING]** https://letsencrypt.org/js/plotly-min.js: 1167ms CPU time
- **[WARNING]** https://letsencrypt.org/: 500ms CPU time
- **[INFO]** https://letsencrypt.org/js/number-animation.137c25...: 205ms CPU time
- **[INFO]** Unattributable: 198ms CPU time
- **[INFO]** Third-party scripts: 198ms (10% of total)

### Font Loading (A+ — 100/100)

*No web fonts (system fonts)*

- **[PASS]** No web fonts loaded — system fonts are fastest

### JS Bundles (C — 60/100)

*9 scripts, 204 KB unused*

- **[WARNING]** https://letsencrypt.org/js/plotly-min.js: 204 KB unused (59%) — Consider code splitting or tree shaking to reduce unused code.
- **[INFO]** Total unused JavaScript: 204 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

---

## 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 (B — 80/100)

*Open Graph tags are partially configured — some improvements recommended.*

- **[CRITICAL]** og:image is not reachable — The og:image URL could not be fetched. Social platforms won't be able to display it.
- **[INFO]** og:title is short (13 characters) — Ideal length is 25–60 characters for social sharing previews.
- **[INFO]** og:description is long (211 characters) — Descriptions over 200 characters may be truncated in social sharing previews.
- **[INFO]** Missing og:site_name — The og:site_name tag displays the website name in social previews.
- **[INFO]** Missing twitter:card — Without twitter:card, Twitter falls back to Open Graph tags. Adding it gives you more control.

### Structured Data (C — 40/100)

*No structured data (JSON-LD) found.*

- **[INFO]** No structured data (JSON-LD) found — Adding structured data helps search engines understand your content and can enable rich results.

---

## Infrastructure

### DNS Records (A+ — 100/100)

*2 A records, 76 ms lookup*

- **[PASS]** Resolves to 2 IPv4 address(es)
- **[PASS]** Has 2 IPv6 (AAAA) record(s)
- **[PASS]** 2 nameserver(s) configured
- **[PASS]** 5 mail exchanger(s) configured
- **[INFO]** CAA records not checked — CAA record lookup requires a specialized DNS resolver. This check will be available in a future update.
- **[PASS]** SPF record present in TXT
- **[PASS]** DNS resolution time: 76 ms

### Redirect Chain (A+ — 100/100)

*No redirects — direct access*

- **[PASS]** No redirects — direct access

### IPv6 Readiness (A+ — 100/100)

*IPv6 reachable (7 ms)*

- **[PASS]** IPv6 is configured and reachable at 2600:1f18:16e:df01::258, 2600:1f18:16e:df01::259

### Crawlability (A+ — 95/100)

*robots.txt present, sitemap with 28 URLs*

- **[PASS]** robots.txt is present
- **[PASS]** sitemap.xml is present
- **[PASS]** sitemap.xml is valid XML
- **[PASS]** sitemap.xml contains 28 entries
- **[PASS]** Sitemap index with 28 child sitemaps
- **[INFO]** robots.txt does not reference a sitemap — Add a 'Sitemap:' directive to robots.txt so search engines can discover your sitemap.

### URL Variants (A+ — 100/100)

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

- **[PASS]** www/non-www redirect configured correctly (preferred: non-www)
- **[PASS]** HTTP correctly 301-redirects to HTTPS

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

*letsencrypt.org — via Cloudflare, Inc., 11 years, 10 months old*

- **[PASS]** Domain registered until Jul 7, 2027 (1 years, 3 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: Cloudflare, Inc.

---

## 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

---

## Legal

### Legal Page Ecosystem (C — 60/100)

*2 of 7 expected legal pages detected*

- **[PASS]** Privacy Policy detected — Found at /privacy/, linked from footer.
- **[PASS]** Terms of Service detected — Found at https://www.abetterinternet.org/terms-of-service, 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 Internet Security Research Group GitHub LinkedIn T*

- **[PASS]** Copyright notice is up to date — Copyright notice is up to date: © 2026 Internet Security Research Group GitHub LinkedIn T
- **[PASS]** Copyright holder: Internet Security Research Group GitHub LinkedIn T

### Regulatory Indicators

*1 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: .eu; Privacy policy page found. EU General Data Protection Regulation — governs collection and processing of personal data of EU residents.

### 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 (B — 80/100)

*Netlify*

- **[PASS]** Site is served via Netlify CDN

### HTTP Caching (B — 75/100)

*public,max-age=0,must-revalidate*

- **[PASS]** Cache-Control header is set
- **[PASS]** ETag present — enables conditional (304) responses

---

## Accessibility

### Landmark Structure (A — 85/100)

*5 landmarks*

- **[PASS]** <main> landmark present
- **[PASS]** 1 <nav> landmark(s) 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)

*19 headings*

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

### Alt Text Quality (A+ — 100/100)

*All 93 images OK*

- **[PASS]** 5 decorative image(s) correctly marked
- **[PASS]** 88 image(s) with good alt text

### Form Accessibility (A+ — 100/100)

*No form controls*

- **[PASS]** No form controls on this page

### Link & Button Quality (A — 88/100)

*157 links, 8 buttons — all OK*

- **[WARNING]** 7 link(s) open in new tab without warning — Add '(opens in new tab)' to link text or aria-label.
- **[PASS]** 150 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*

- **[PASS]** favicon.ico present at site root
- **[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 — 20/100)

*No navigation patterns*

- **[PASS]** 1 navigation landmark(s) detected
- **[PASS]** Hamburger menu detected (responsive design)
- **[INFO]** No breadcrumbs, search, or skip link detected — These navigation aids help users orient themselves and find content efficiently, especially on large sites.

---

## SEO

### Canonical URL (B — 80/100)

*Minor issues*

- **[WARNING]** No canonical tag found — Search engines will determine the canonical URL themselves, which may cause duplicate content issues.

### Meta Tags (A — 85/100)

*Title: 13 chars*

- **[PASS]** Page title is set
- **[WARNING]** Title is only 13 characters — consider expanding
- **[INFO]** Title and H1 have very different wording — Alignment helps users confirm they've reached the right page.

### Content Depth (B — 80/100)

*631 words, Very Difficult*

- **[PASS]** Page has 631 words of content
- **[INFO]** Reading level: Very Difficult (grade 17)

### Internal Links (A+ — 100/100)

*55 internal, 102 external*

- **[PASS]** 55 internal links (35%)
- **[PASS]** 100% of links use descriptive anchor text
- **[INFO]** 55 internal / 102 external links

### Image SEO (A+ — 100/100)

*93 images, 93 descriptive filenames*

- **[PASS]** All images have descriptive filenames

### Hreflang

*0 hreflang tags*


---

## Sustainability

### CO2 Per Page Load (A+ — 100/100)

*0.18g CO2 per view*

- **[PASS]** 0.18g CO2 per page view — This page transfers 0.8 MB, producing an estimated 0.18g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.00g, network 0.04g, end-user device 0.14g.
- **[INFO]** At 10,000 monthly views: 21.4 kg CO2/year — With 10,000 page views per month, this page would generate approximately 21.4 kg of CO2 annually — equivalent to charging 2672 smartphones.
- **[PASS]** Green hosting reduces data center emissions

### Green Hosting (A — 85/100)

*Green (cdn)*

- **[PASS]** Netlify CDN uses renewable energy — Since most traffic is served through the CDN, the majority of data transfer energy is renewable.
- **[INFO]** Netlify: Hosted on AWS/Google Cloud with renewable energy matching
- **[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)

*98% cached*

- **[PASS]** 98% reduction on repeat visits — Returning visitors download only 15 KB (vs 770 KB first visit). 22 of 24 resources are served from browser cache, saving 0.17g CO2 per repeat visit.
- **[INFO]** Repeat visit: 0.00g CO2 (first visit: 0.18g)

### Carbon Budget (A+ — 100/100)

*10th percentile*

- **[PASS]** 0.18g CO2 — below the sustainability target of 0.50g — Cleaner than an estimated 90% of websites analyzed. This page meets the Web Sustainability Guidelines target.
- **[INFO]** Estimated 10th percentile — Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.

### Transfer Efficiency (C — 60/100)

*73% efficient*

- **[WARNING]** Transfer efficiency: 73% — An estimated 204 KB (27%) could be eliminated: 0 KB via better compression, 0 KB via modern image formats, 204 KB of unused JavaScript. This wasted data produces 0.05g of unnecessary CO2 per page view.

---

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*Generated by [BeaverCheck](https://beavercheck.com) — https://beavercheck.com/results/73a9fe40-87c3-4cde-b045-09a5374aa5d3*