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

**Date:** April 22, 2026  
**URL:** https://canonical.com  
**Overall Grade:** B (80/100)  
**Report:** https://beavercheck.com/results/4b36bbfe-0b07-46c6-84e9-035acd5f66f1

## 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. **[CRITICAL]** 7 link(s) with no accessible text — Accessibility > Link & Button Quality
4. **[CRITICAL]** No <main> landmark found — Accessibility > Landmark Structure
5. **[WARNING]** 32 third-party resources (85% of weight) — Performance > Page Weight Inventory

---

## Lighthouse Scores

| Category | Score |
|----------|-------|
| Performance | 40 |
| Accessibility | 93 |
| Best Practices | 100 |
| SEO | 92 |

---

## Security

### Security Headers (A — 90/100)

*8 of 10 headers properly configured*

- **[PASS]** Strict-Transport-Security is properly configured (consider adding preload)
- **[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
- **[INFO]** Cross-Origin-Opener-Policy is set but not 'same-origin'
- **[PASS]** Cross-Origin-Embedder-Policy is set
- **[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 — 35/100)

*3 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'.
- **[WARNING]** frame-ancestors directive is missing — frame-ancestors controls who can embed your page, preventing clickjacking. Set it to 'self' or 'none'.
- **[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 84 days)
- **[PASS]** Certificate chain has 2 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 (F — 20/100)

*0 of 1 external resources have SRI*

- **[WARNING]** External script from assets.ubuntu.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 (C — 65/100)

*1 directives, 5 missing*

- **[PASS]** interest-cohort=() — blocked for all origins
- **[INFO]** camera not restricted — Consider adding camera=() to block camera access from embedded content.
- **[INFO]** microphone not restricted — Consider adding microphone=() to block microphone access from embedded content.
- **[INFO]** geolocation not restricted — Consider adding geolocation=() to block geolocation access from embedded content.
- **[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 (D — 42/100)

*2.5 MB transferred, 53 requests*

- **[WARNING]** Page weighs 7.0 MB (2.5 MB transferred)
- **[WARNING]** JavaScript is 846 KB — consider code splitting or lazy loading — Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
- **[INFO]** Fonts are 582 KB — consider subsetting or using system fonts — Subset fonts to include only used characters, or switch to system font stacks.
- **[INFO]** 53 HTTP requests
- **[INFO]** Estimated 0.52 g CO2 per page load

### Third-Party Impact (D — 50/100)

*85% third-party, 0 ms blocking*

- **[WARNING]** Third-party code accounts for 85% of page weight (2.1 MiB of 2.5 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)

*15 images, 0 KB saveable*

- **[WARNING]** https://assets.ubuntu.com/v1/d036df5d-hardware.svg is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://assets.ubuntu.com/v1/398d9c17-pause.svg is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://assets.ubuntu.com/v1/9efb4b31-silicon.svg is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://assets.ubuntu.com/v1/2370a9a8-cloud.svg is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.

### JS Execution Cost (F — 20/100)

*7468ms total JS execution*

- **[WARNING]** https://canonical.com/: 2553ms CPU time
- **[WARNING]** https://canonical.com/static/js/dist/homepage_anim...: 2025ms CPU time
- **[WARNING]** Unattributable: 824ms CPU time
- **[WARNING]** https://www.googletagmanager.com/gtag/js?id=G-5LTL...: 569ms CPU time
- **[WARNING]** https://www.googletagmanager.com/gtag/js?id=G-1NSN...: 368ms CPU time
- **[INFO]** Third-party scripts: 2518ms (34% of total)

### Font Loading (A+ — 100/100)

*6 fonts (582 KB)*

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

### JS Bundles (D — 40/100)

*17 scripts, 331 KB unused*

- **[WARNING]** https://www.googletagmanager.com/gtm.js?id=GTM-M5B...: 70 KB unused (44%) — Consider code splitting or tree shaking to reduce unused code.
- **[WARNING]** https://www.googletagmanager.com/gtag/js?id=G-1NSN...: 67 KB unused (42%) — Consider code splitting or tree shaking to reduce unused code.
- **[WARNING]** https://www.googletagmanager.com/gtag/destination?...: 67 KB unused (46%) — Consider code splitting or tree shaking to reduce unused code.
- **[WARNING]** https://www.googletagmanager.com/gtag/js?id=G-5LTL...: 64 KB unused (37%) — Consider code splitting or tree shaking to reduce unused code.
- **[WARNING]** https://canonical.com/static/js/dist/homepage_anim...: 63 KB unused (94%) — Consider code splitting or tree shaking to reduce unused code.
- **[INFO]** Total unused JavaScript: 331 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)

*8 hints, 0 missing preconnects*

- **[PASS]** Page uses 8 resource hint(s)

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

*53 resources · 2.5 MB · 331 KB savings available*

- **[WARNING]** Page weight 1.5 MB over 1MB target
- **[INFO]** ~331 KB of savings available
- **[WARNING]** 32 third-party resources (85% 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 (A — 96/100)

*200 links checked, 198 healthy, 0 broken*

- **[PASS]** 198 of 200 links are healthy
- **[INFO]** Long redirect chain: https://ubuntu.com/tutorials/install-ubuntu-on-... (3 hops)
- **[INFO]** Long redirect chain: https://ubuntu.com/tutorials/install-ubuntu-on-... (3 hops)

### 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 (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)

*3 A records, 195 ms lookup*

- **[PASS]** Resolves to 3 IPv4 address(es)
- **[PASS]** Has 3 IPv6 (AAAA) record(s)
- **[PASS]** 3 nameserver(s) configured
- **[PASS]** 1 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: 195 ms

### Redirect Chain (A+ — 100/100)

*No redirects — direct access*

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

### IPv6 Readiness (A+ — 100/100)

*IPv6 reachable (179 ms)*

- **[PASS]** IPv6 is configured and reachable at 2620:2d:4000:1::26, 2620:2d:4000:1::27, 2620:2d:4000:1::28

### Crawlability (A+ — 100/100)

*robots.txt present, sitemap with 9 URLs*

- **[PASS]** robots.txt is present
- **[PASS]** sitemap.xml is present
- **[PASS]** sitemap.xml is valid XML
- **[PASS]** sitemap.xml contains 9 entries
- **[PASS]** Sitemap index with 9 child sitemaps
- **[PASS]** robots.txt references 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)

*canonical.com — via MarkMonitor Inc., 30 years, 2 months old*

- **[PASS]** Domain registered until Jul 4, 2027 (1 years, 2 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.

---

## 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)

*5 trackers detected*

- **[INFO]** 5 third-party trackers detected — Found 3 analytics, 1 advertising, 0 marketing, 1 tag manager trackers.
- **[WARNING]** 1 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 5 trackers but no cookie policy was detected. GDPR requires disclosure when using tracking cookies.
- **[WARNING]** Trackers detected but no privacy policy found — Most data protection regulations require a privacy policy when collecting user data via trackers.

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

*0 cookies · 5 trackers · 0 pre-consent*

- **[INFO]** 5 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 /legal/data-privacy.
- **[PASS]** Terms of Service detected — Found at /careers/legal.
- **[PASS]** Cookie Policy detected — Found at https://canonical.com/legal/data-privacy?cp=hide#cookies, linked from footer.
- **[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 Canonical Ltd*

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

### 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]** HIPAA indicators detected (strong confidence) — Indicators suggesting HIPAA may be relevant: Text mentions: hipaa; Text mentions: phi. Health Insurance Portability and Accountability Act — protects sensitive patient health information.

### 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 (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 (A — 90/100)

*max-age=60 (1 minute)*

- **[PASS]** Cache-Control header is set
- **[PASS]** Effective TTL: 1 minute (max-age=60)
- **[INFO]** No ETag or Last-Modified header — Conditional requests (304 Not Modified) are not possible without validators.

### Transport Security (A — 90/100)

*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.
- **[PASS]** HSTS enabled (includeSubDomains)
- **[PASS]** TLS 1.3 in use (fastest handshake, 1-RTT)

---

## Accessibility

### Landmark Structure (B — 75/100)

*5 landmarks*

- **[CRITICAL]** No <main> landmark found — Screen reader users cannot quickly navigate to the primary content. Wrap your main content in <main>.
- **[PASS]** 1 <nav> landmark(s) found
- **[PASS]** Skip navigation link present

### Heading Hierarchy (A+ — 95/100)

*73 headings*

- **[PASS]** Single H1 present
- **[WARNING]** 1 empty heading(s) — Empty headings appear in the document outline but provide no information.

### Alt Text Quality (A+ — 100/100)

*All 67 images OK*

- **[PASS]** 40 decorative image(s) correctly marked
- **[PASS]** 27 image(s) with good alt text

### Form Accessibility (A+ — 100/100)

*All 48 controls labeled*

- **[PASS]** 48 control(s) properly labeled

### Link & Button Quality (C — 67/100)

*7 issue(s) across 535 links and 14 buttons*

- **[CRITICAL]** 7 link(s) with no accessible text — Links without text are announced as raw URLs by screen readers.
- **[WARNING]** 1 link(s) open in new tab without warning — Add '(opens in new tab)' to link text or aria-label.
- **[PASS]** 527 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 (C — 65/100)

*6 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]** Multiple icon sizes detected

### Web Manifest (B — 80/100)

*Valid manifest*

- **[PASS]** Name present: Canonical
- **[PASS]** 192x192 icon present
- **[PASS]** 512x512 icon present
- **[PASS]** Display mode: standalone

### 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]** 1 navigation landmark(s) detected

---

## SEO

### Canonical URL (A+ — 100/100)

*Properly configured*

- **[PASS]** Canonical tag present
- **[PASS]** Canonical is self-referencing
- **[PASS]** Canonical matches final URL after redirects
- **[PASS]** Canonical target returns 200

### Meta Tags (A+ — 100/100)

*Title optimized*

- **[PASS]** Page title is set
- **[PASS]** Title length (47 chars) is optimal
- **[PASS]** Title and H1 are well-aligned

### Content Depth (A+ — 100/100)

*4583 words, Very Difficult*

- **[PASS]** Page has 4583 words — good depth for search engines
- **[INFO]** Reading level: Very Difficult (grade 24)

### Internal Links (A+ — 95/100)

*290 internal, 245 external*

- **[PASS]** 290 internal links (54%)
- **[PASS]** 99% of links use descriptive anchor text
- **[INFO]** Page has 535 links — consider reducing
- **[INFO]** 290 internal / 245 external links

### Image SEO (A+ — 100/100)

*67 images, 67 descriptive filenames*

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

### Hreflang

*0 hreflang tags*


---

## Sustainability

### CO2 Per Page Load (B — 70/100)

*0.71g CO2 per view*

- **[INFO]** 0.71g CO2 per page view — This page transfers 2.5 MB, producing an estimated 0.71g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.13g, network 0.12g, end-user device 0.45g.
- **[INFO]** At 10,000 monthly views: 85.0 kg CO2/year — With 10,000 page views per month, this page would generate approximately 85.0 kg of CO2 annually — equivalent to charging 10625 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)

*98% cached*

- **[PASS]** 98% reduction on repeat visits — Returning visitors download only 40 KB (vs 2561 KB first visit). 52 of 53 resources are served from browser cache, saving 0.70g CO2 per repeat visit.
- **[INFO]** Repeat visit: 0.01g CO2 (first visit: 0.71g)

### Carbon Budget (D — 50/100)

*53th percentile*

- **[WARNING]** 0.71g CO2 — above the median website (0.60g) — Heavier than an estimated 47% of websites. Reducing page weight, optimizing images, and removing unused JavaScript would lower the carbon footprint. See the Performance tab.
- **[INFO]** Estimated 53th percentile — Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.

### Transfer Efficiency (B — 80/100)

*87% efficient*

- **[INFO]** Transfer efficiency: 87% — An estimated 330 KB (13%) could be eliminated: 0 KB via better compression, 0 KB via modern image formats, 330 KB of unused JavaScript. This wasted data produces 0.09g of unnecessary CO2 per page view.

---

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*Generated by [BeaverCheck](https://beavercheck.com) — https://beavercheck.com/results/4b36bbfe-0b07-46c6-84e9-035acd5f66f1*