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

**Date:** August 16, 2026  
**URL:** https://linuxfr.org  
**Overall Grade:** B (82/100)  
**Report:** https://beavercheck.com/results/45f7d183-ee0a-473c-b796-dbe654688472

## Top Findings

1. **[CRITICAL]** Content-Security-Policy header is missing — Security > Security Headers
2. **[CRITICAL]** No Content-Security-Policy header found — Security > Content Security Policy
3. **[CRITICAL]** 3 control(s) without accessible label — Accessibility > Form Accessibility
4. **[WARNING]** 1 render-blocking <script src> tag(s) without async/defer — Performance > JavaScript Blocking
5. **[WARNING]** 15 third-party resources (67% of weight) — Performance > Page Weight Inventory

---

## Lighthouse Scores

| Category | Score |
|----------|-------|
| Performance | 56 |
| Accessibility | 93 |
| Best Practices | 100 |
| SEO | 100 |

---

## Security

### Security Headers (D — 40/100)

*4 of 10 headers properly configured*

- **[PASS]** Strict-Transport-Security is properly configured (consider adding preload)
- **[PASS]** X-Content-Type-Options is properly configured
- **[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
- **[INFO]** Domain is not in the Chrome HSTS preload list (status: unknown) — Submit your domain to hstspreload.org to close the trust-on-first-use gap. Requires a preload-ready HSTS header (max-age=31536000+, includeSubDomains, preload).

### Content Security Policy (F — 0/100)

*No enforcing CSP policy found*

- **[CRITICAL]** No Content-Security-Policy header found — CSP is the most effective defense against XSS attacks. Add a Content-Security-Policy header to restrict resource loading.

### TLS & Certificates (A+ — 100/100)

*TLS 1.3, 7 checks passed*

- **[PASS]** TLS 1.3 is used
- **[PASS]** Strong cipher suite is used
- **[INFO]** HTTP/2 is not negotiated — HTTP/2 provides multiplexing and header compression for better performance.
- **[INFO]** OCSP stapling not enabled — Without stapling, the browser performs a separate OCSP roundtrip on first connection -- adding latency and leaking the visited host to the CA. Enable OCSP stapling on your TLS server.
- **[PASS]** Certificate is valid (expires in 61 days)
- **[PASS]** Certificate chain has 3 certificates
- **[PASS]** Certificate uses modern signature algorithm
- **[PASS]** Certificate covers 5 domain(s)
- **[PASS]** Certificate is issued by a trusted CA

### Cookie Security (A+ — 100/100)

*1 cookies analyzed, 3 checks passed*

- **[PASS]** Cookie 'linuxfr.org_session' has the Secure flag
- **[PASS]** Cookie 'linuxfr.org_session' has the HttpOnly flag
- **[PASS]** Cookie 'linuxfr.org_session' has SameSite=Lax

### Cookie Hygiene (A+ — 100/100)

*All 1 cookie(s) pass hygiene checks*

- **[PASS]** All 1 cookie(s) pass hygiene checks

### WAF / Bot Protection (B — 75/100)

*No WAF detected via response headers*

- **[INFO]** No WAF detected — Response headers don't match any known WAF or bot-management product. Sites exposed to abuse (login, signup, payment) typically benefit from a WAF such as Cloudflare, Akamai, AWS WAF, or Imperva.

### security.txt (C — 60/100)

*No security.txt file found*

- **[INFO]** No security.txt file found — security.txt (RFC 9116) provides a standardized way for security researchers to report vulnerabilities. Create one at /.well-known/security.txt with at least a Contact field.

### Cross-Origin Tab Safety (A+ — 100/100)

*No new-tab links found -- no tabnabbing surface*

- **[PASS]** No new-tab links present

### CSP Inline-Style Readiness (B — 90/100)

*1 inline style attribute(s) detected*

- **[INFO]** 1 inline style attribute(s) detected — Each `style=""` attribute forces `style-src 'unsafe-inline'` in any Content-Security-Policy, which negates most of CSP's XSS-mitigation value. 1 inline style(s) is low. Affected element types include: div. Move styles to a stylesheet; use CSS custom properties for runtime-dynamic values; or adopt a nonce/hash CSP policy. Most teams take the stylesheet path because it's also a maintainability win.

### Trusted Types (XSS Sink Hardening) (A+ — 100/100)

*No CSP header -- Trusted Types check is N/A*

- **[PASS]** No CSP header found -- Trusted Types check is N/A

### Bot Challenge Detection (A+ — 100/100)

*Scan reached real page content (no bot-protection interstitial)*

- **[PASS]** No bot-protection interstitial detected -- the rest of the report reflects the real page

### Soft-404 Detection (A+ — 100/100)

*No soft-404 patterns detected in page title or headings*

- **[PASS]** No soft-404 patterns detected in page title or headings

### Empty Page Detection (A+ — 100/100)

*Page has substantive body text and no placeholder / template-leak signals*

- **[PASS]** Page has substantive body text and no placeholder / template-leak signals

### Geo-Restriction Detection (A+ — 100/100)

*No geo-restriction signals detected -- scan reached the page from an allowed region*

- **[PASS]** No geo-restriction detected

### Maintenance Mode Detection (A+ — 100/100)

*No maintenance-mode signals detected -- scan reached a normal page*

- **[PASS]** No maintenance-mode signals detected

### Subresource Integrity Adoption (A+ — 100/100)

*Page has no third-party scripts or stylesheets -- SRI not applicable*

- **[PASS]** No third-party scripts or stylesheets to protect with SRI

### CORS Depth (A+ — 100/100)

*No CORS response headers -- the resource is same-origin-only by browser default*

- **[PASS]** No CORS response headers -- the resource is same-origin-only by browser default

### Permissions-Policy Granularity (C — 60/100)

*No Permissions-Policy header set -- powerful features (camera / microphone / geolocation / payment / USB) default to allow-on-same-origin*

- **[WARNING]** Permissions-Policy header not set -- features default to allow-on-same-origin — Without a `Permissions-Policy` (or legacy `Feature-Policy`) header, every powerful browser feature defaults to its spec default policy (typically `self`). A third-party iframe injected via XSS or a misconfigured embed can still request access to the user's camera, microphone, geolocation, payment APIs, USB devices, etc. Explicitly deny features the page doesn't need:

```
Permissions-Policy: camera=(), microphone=(), geolocation=(), payment=(), usb=(), accelerometer=(), gyroscope=()
```

Features the page legitimately uses can stay enabled with `feature=(self)`.

### Referrer-Policy Strictness (B — 75/100)

*Referrer-Policy header not set -- browser default applies (modern: strict-origin-when-cross-origin; legacy browsers: no-referrer-when-downgrade)*

- **[INFO]** Referrer-Policy header not set -- browser default applies — Without an explicit `Referrer-Policy` header, the browser falls back to its default policy. Modern browsers (Chrome 85+, Firefox 87+, Safari 15+) default to `strict-origin-when-cross-origin`, which is privacy-safe. Legacy browsers default to the leaky `no-referrer-when-downgrade`, which sends the full URL (including path + query) on cross-origin HTTPS-to-HTTPS requests. Set an explicit header to ensure consistent behavior:

```
Referrer-Policy: strict-origin-when-cross-origin
```

This matches the modern browser default and is privacy-safe without breaking referrer-based same-origin analytics.

### Source Map Exposure (A+ — 100/100)

*No source maps accessible (probed 1 candidate URL(s))*

- **[PASS]** No source maps accessible across 1 probed candidate(s)

### HTML Version Disclosure (A+ — 100/100)

*No software-version disclosures in HTML*

- **[PASS]** No software-version disclosures in HTML

### Open Redirect Surface (A+ — 100/100)

*No redirect-shaped query parameters in DOM links*

- **[PASS]** No redirect-shaped query parameters in DOM links

### Auth Security (A+ — 95/100)

*3 auth-security finding(s) on the login page*

- **[PASS]** Login page detected — The page contains a `type=password` input and at least one identifier field (username / email). Auth-security findings below evaluate the page's hardening posture.
- **[PASS]** Login form contains a CSRF token
- **[INFO]** No password-reset link found on the login page — Login pages should link to a password-reset flow (typically /forgot, /reset, or a 'Forgot password?' link). Absence usually means the reset flow lives elsewhere on the site (separately reachable), but if it's truly missing, users locked out of accounts have no self-service recovery path.

### Subdomain Inventory Exposure (A+ — 100/100)

*No risky subdomain names in certificate SANs*

- **[PASS]** No risky subdomain names in certificate SANs

---

## 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*

- **[INFO]** No security.txt found — Consider adding a security.txt at /.well-known/security.txt.
- **[PASS]** No sensitive files exposed

### Email Security (F — 29/100)

*DMARC: none, SPF: ~all*

- **[WARNING]** DMARC policy is none — monitoring only — This only monitors, it doesn't block spoofed emails. Change to p=quarantine or p=reject after monitoring DMARC reports.
- **[INFO]** DMARC configured without rua= aggregate reporting — Without rua=, you have no visibility into spoof attempts or auth failures from your own legitimate senders. Add rua=mailto:dmarc@<your-domain> (or a managed inbox at a reporting service).
- **[INFO]** SPF ends in ~all (soft fail) — Soft fail tells receivers to accept-but-mark unauthorized mail. Migrate to -all once you've confirmed all legitimate senders are listed (DMARC aggregate reports help verify).
- **[INFO]** No DKIM detected via common selectors — DKIM signs outbound mail to prove origin. We probed common selectors (default, google, selector1, etc.) without finding a record. If you use a non-standard selector, this is a false negative.
- **[INFO]** MTA-STS not configured — MTA-STS forces inbound mail to use TLS, preventing downgrade attacks. Requires both a TXT record at _mta-sts.<domain> and a policy file at https://mta-sts.<domain>/.well-known/mta-sts.txt.
- **[INFO]** TLS-RPT not configured — TLS-RPT (RFC 8460) lets MTAs report TLS-handshake failures, so you can detect and fix MTA-STS misconfigurations. Add a TXT record at _smtp._tls.<domain>.
- **[INFO]** BIMI not configured — BIMI (Brand Indicators for Message Identification) lets supporting clients (Gmail, Apple Mail, Yahoo) display your verified logo next to your messages. Optional but raises trust signals. Requires DMARC at p=quarantine or p=reject to be honored.

### API Surface (A+ — 100/100)

*No API specs or GraphQL introspection found (probed 11 candidate path(s))*

- **[PASS]** No API specs or GraphQL introspection found (probed 11 path(s))

### 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 (C — 62/100)

*1.8 MB transferred, 35 requests*

- **[INFO]** Page weighs 1.9 MB (1.8 MB transferred)
- **[WARNING]** Images are 1.3 MB — compress or use modern formats — Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
- **[INFO]** Fonts are 282 KB — consider subsetting or using system fonts — Subset fonts to include only used characters, or switch to system font stacks.
- **[PASS]** 35 HTTP requests
- **[INFO]** Estimated 0.38 g CO2 per page load

### Third-Party Impact (D — 50/100)

*67% third-party, 0 ms blocking*

- **[WARNING]** Third-party code accounts for 67% of page weight (1.2 MiB of 1.8 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)

*27 images, 0 KB saveable*

- **[WARNING]** https://img.linuxfr.org/img/68747470733a2f2f777777... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://img.linuxfr.org/img/68747470733a2f2f656d6d... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://img.linuxfr.org/img/68747470733a2f2f706963... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://img.linuxfr.org/img/68747470733a2f2f777777... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://img.linuxfr.org/img/68747470733a2f2f676d69... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://linuxfr.org/images/sections/70.png is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://img.linuxfr.org/img/68747470733a2f2f786d70... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://linuxfr.org/images/sections/9.png is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://img.linuxfr.org/img/68747470733a2f2f706963... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://linuxfr.org/images/sections/22.png is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://linuxfr.org/images/sections/83.png is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://linuxfr.org/images/sections/19.png is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://img.linuxfr.org/img/68747470733a2f2f777777... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://img.linuxfr.org/img/68747470733a2f2f777777... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://linuxfr.org/images/sections/66.png is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://linuxfr.org/images/sections/1.png is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://linuxfr.org/images/sections/62.png is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://img.linuxfr.org/img/68747470733a2f2f706c61... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://linuxfr.org/images/sections/16.png is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://linuxfr.org/images/sections/92.png is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://img.linuxfr.org/img/68747470733a2f2f692e69... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://linuxfr.org/images/sections/85.png is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://img.linuxfr.org/img/68747470733a2f2f676d69... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.

### JS Execution Cost (B — 80/100)

*625ms total JS execution*

- **[WARNING]** https://linuxfr.org/: 325ms CPU time
- **[INFO]** Unattributable: 218ms CPU time
- **[INFO]** https://linuxfr.org/assets/application-479dcb6f903...: 82ms CPU time

### Font Loading (A+ — 100/100)

*2 fonts (282 KB)*

- **[INFO]** 2 font(s) use font-display: swap (FOUT risk but functional)

### JS Bundles (B — 80/100)

*1 scripts, 98 KB unused*

- **[WARNING]** https://linuxfr.org/assets/application-479dcb6f903...: 98 KB unused (69%) — Consider code splitting or tree shaking to reduce unused code.
- **[INFO]** Total unused JavaScript: 98 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

### HTTP/3 (QUIC) (B — 75/100)

*HTTP/3 not advertised*

- **[INFO]** HTTP/3 (QUIC) is not advertised — HTTP/3 isn't advertised via Alt-Svc and the worker didn't negotiate h3. HTTP/3 reduces handshake latency (1-RTT instead of 2-3 RTTs) and is more resilient on lossy connections. Most modern CDNs (Cloudflare, Fastly, AWS CloudFront, Google Cloud CDN) support HTTP/3 with a single config switch -- consider enabling for mobile-heavy workloads.

### Compression Algorithm (B — 80/100)

*Main response uses gzip; brotli would be ~20% smaller*

- **[INFO]** Main HTML response uses gzip (brotli would be ~20% smaller) — All current browsers support brotli. Most CDNs (Cloudflare, Fastly, AWS CloudFront, Vercel, Netlify) can switch from gzip to brotli with a single config flag. Origin servers (nginx, Apache) need a brotli module compiled in -- nginx-brotli or Apache mod_brotli.

### LCP Image Preload (A+ — 100/100)

*LCP preload audit not available*

- **[PASS]** LCP image preload audit not available for this scan

### Main HTML Cache-Control (A+ — 100/100)

*Main HTML max-age=0 (≤ 5min) is appropriate*

- **[PASS]** Main HTML max-age=0 (≤ 5min) is appropriate

### Server-Timing Observability (B — 85/100)

*No Server-Timing header found*

- **[INFO]** No Server-Timing header found — Server-Timing exposes backend timing breakdowns to browser DevTools (e.g., `db: 45ms; render: 120ms; cache: 2ms`). Useful for diagnosing slow pages without backend log access. Most modern frameworks (Next.js, Cloudflare Workers, Fastly) emit it automatically; absence on a managed platform usually means telemetry headers are stripped at the edge.

### Server Response Intelligence (A — 92/100)

*2 server-response signal(s) detected*

- **[WARNING]** Compressed response missing `Vary` header — The page is served with `Content-Encoding: gzip` but has no `Vary` header. Without `Vary: Accept-Encoding`, intermediary caches (corporate proxies, ISP caches) may serve the compressed variant to clients that didn't send the matching `Accept-Encoding` -- the client sees garbled bytes. Add `Vary: Accept-Encoding` whenever the response is conditionally compressed.
- **[PASS]** `ETag` present -- conditional GET supported

### Page Weight Inventory (D — 45/100)

*35 resources · 1.8 MB · 98 KB savings available*

- **[WARNING]** Page weight 1.8 MB exceeds 1 MB target by 833 KB
- **[INFO]** ~98 KB of savings available
- **[WARNING]** 15 third-party resources (67% of weight)
- **[INFO]** 2 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*


### JavaScript Blocking (A — 94/100)

*1 JS blocking issue(s) detected*

- **[WARNING]** 1 render-blocking <script src> tag(s) without async/defer — Each `<script src=...>` without `async`, `defer`, or `type="module"` blocks HTML parsing while the browser fetches and executes it. The block lasts the entire round-trip + execution time -- on slow networks this translates directly into LCP delay. Add `defer` (executes after parse, in source order) for scripts that interact with the DOM, or `async` (executes whenever ready) for analytics / independent scripts. Module scripts (`type="module"`) are deferred by default.

### CSS Performance Depth (A+ — 100/100)

*No CSS performance depth issues detected*

- **[PASS]** No CSS performance depth issues detected

---

## Content Quality

### Links (A — 95/100)

*200 links checked, 199 healthy, 1 broken*

- **[WARNING]** 199 of 200 links are healthy
- **[CRITICAL]** Broken link: https://www.sciencesetavenir.fr/ — Found in <a href>. Returns HTTP 405.

### 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.

### Open Graph / Twitter Card Depth (A+ — 100/100)

*No OG image or Twitter card set -- depth check is N/A (presence covered by Open Graph section)*

- **[PASS]** No OG image / Twitter card to evaluate

### 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.

### Rich Results Eligibility (C — 75/100)

*No JSON-LD found -- no rich-result eligibility*

- **[INFO]** No JSON-LD structured data on the page — No `<script type="application/ld+json">` blocks found. Without structured data, search engines fall back to inferring page meaning from raw HTML -- which works but doesn't unlock SERP features (rich snippets, knowledge panel, FAQ accordion, breadcrumb trail). Adding even basic JSON-LD (Organization for the site identity, BreadcrumbList for navigation context) is a low-effort SEO win.

### Image Optimization (F — 50/100)

*4 issues found across 27 images*

- **[WARNING]** 5 images significantly larger than display size — Resizing to display dimensions could save approximately 0 KB.
- **[WARNING]** 27 images missing explicit width/height — Images without dimensions cause layout shifts (CLS). Set explicit width and height attributes.
- **[INFO]** 26 below-fold images missing loading="lazy" — Lazy loading defers below-fold images, reducing initial page weight.
- **[WARNING]** All 25 images use legacy formats (JPEG/PNG/GIF) — WebP offers 25-35% smaller files than JPEG. Use <picture> with <source type="image/webp"> for modern format support.

### Autoplay Media (A+ — 100/100)

*No autoplay media on the page*

- **[PASS]** No autoplay media on the page

---

## Infrastructure

### DNS Records (A+ — 95/100)

*1 A records, 107 ms lookup*

- **[PASS]** Resolves to 1 IPv4 address(es)
- **[INFO]** Single A record — no DNS redundancy — Multiple A records provide failover if one server goes down.
- **[INFO]** No IPv6 (AAAA) records
- **[PASS]** 3 nameserver(s) configured
- **[PASS]** 1 mail exchanger(s) configured
- **[PASS]** SPF record present in TXT
- **[PASS]** DNS resolution time: 107 ms

### Subdomain Takeover (A+ — 100/100)

*No subdomain takeover risk detected*

- **[PASS]** No CNAME record present

### DNSSEC (B — 80/100)

*Unsigned (DNSSEC not deployed)*

- **[INFO]** DNSSEC is not deployed — The zone is not DNSSEC-signed. Users on validating resolvers (Cloudflare 1.1.1.1, Quad9 9.9.9.9, growing default in mobile resolvers) get no protection against DNS spoofing for this domain. Most registrars now offer DNSSEC at a single click; consider enabling it for sites where authenticity matters (banking, healthcare, government).

### CAA Records (B — 80/100)

*No CAA records (any CA may issue certificates)*

- **[INFO]** No CAA records published — Without CAA records, any publicly-trusted CA can issue certificates for this domain. Adding a CAA record (`yourdomain. IN CAA 0 issue "letsencrypt.org"`) restricts issuance to CAs you authorize. Required by CAB Forum baseline since 2017; the default of 'any CA' is widely supported but is the broader attack surface for issuance fraud.

### Reverse DNS (B — 75/100)

*0/1 IPs match cert SAN*

- **[INFO]** PTR for 213.36.253.103 does not match any cert SAN: zobe.linuxfr.org — Common when behind a CDN or shared hosting (PTR points at the provider's hostname). Mismatch can also affect mail deliverability if this IP sends email -- many MTAs reject mail when forward+reverse DNS disagree.

### Multi-Resolver DNS Speed (A+ — 100/100)

*Mean 12ms across 3 resolvers (spread 19ms)*

- **[PASS]** Quad9: 1ms
- **[PASS]** Cloudflare: 17ms
- **[PASS]** Google: 20ms

### Redirect Chain (A+ — 100/100)

*No redirects — direct access*

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

### 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 (B — 70/100)

*robots.txt present, sitemap with 0 URLs*

- **[PASS]** robots.txt is present
- **[PASS]** sitemap.xml is present
- **[WARNING]** sitemap.xml contains invalid XML — Search engines may not be able to parse the sitemap. Fix XML validation errors.
- **[WARNING]** sitemap.xml is empty — no URLs found — An empty sitemap provides no value. Add <url> entries for your pages.
- **[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)

*linuxfr.org — via CSL Computer Service Langenbach GmbH d/b/a joker.com, 28 years, 6 months old, hosted on PROXAD - Free SAS, FR*

- **[PASS]** Domain registered until Jun 27, 2027 (10 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: CSL Computer Service Langenbach GmbH d/b/a joker.com
- **[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: PROXAD - Free SAS, FR

---

## Compliance

### WCAG Compliance (A+ — 100/100)

*No testable criteria*


### Cookie Consent & Privacy (C — 65/100)

*No consent signals detected*

- **[WARNING]** No privacy policy link detected — A privacy policy page is recommended for transparency and may be legally required.
- **[PASS]** Terms of service link found
- **[INFO]** No cookie consent banner detected
- **[CRITICAL]** 1 non-essential cookie(s) set without consent banner — Unrecognized (treated as non-essential): linuxfr.org_session
- **[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.

### Consent UX Depth (A+ — 100/100)

*No consent-UX depth issues detected*

- **[PASS]** No consent-UX depth issues detected

### Tracker Inventory (A+ — 100/100)

*No known trackers detected on this page*

- **[PASS]** No known trackers detected on this page

### 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.

### Hreflang Configuration (A+ — 100/100)

*No hreflang tags on this page*

- **[PASS]** No hreflang tags found (single-language site)

### Internationalization Extras (A+ — 100/100)

*No additional i18n signals detected*

- **[PASS]** No additional i18n signals detected

### 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

### Accessibility Statement (B — 70/100)

*No accessibility statement detected*

- **[WARNING]** No accessibility statement detected — Sites are increasingly expected to publish an accessibility statement. Required by EU Web Accessibility Directive 2016/2102 for public-sector bodies; recommended best practice elsewhere. Common URLs: /accessibility, /accessibility-statement, /a11y.
- **[PASS]** Mentions Americans with Disabilities Act (ADA)

### GDPR Article 13 Disclosures (F — 25/100)

*0 / 8 Art. 13 categories matched in homepage body*

- **[WARNING]** GDPR Article 13 disclosure coverage: 0 / 8 categories — Scanned the homepage body text AND the linked /privacy page for GDPR Article 13 disclosures. Matched 0 of 8 categories: . Missing: Data Protection Officer contact (where applicable), Data retention period, Data subject rights (access, erasure, rectification, etc.), Identity / contact details of the data controller, International data transfers, Legal basis for processing, Recipients of personal data, Right to lodge a complaint with a supervisory authority. Note: only the FIRST same-origin privacy-policy link is followed; deeper sub-pages (e.g. /legal/data-subject-rights) are not fetched.

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

*No third-party trackers detected*

- **[PASS]** No third-party trackers detected

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

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

- **[INFO]** 1 cookie(s) could not be classified

### Tracking Pixel Inventory (A+ — 100/100)

*No tracking pixels detected*

- **[PASS]** No tracking pixels detected

### Browser Fingerprinting (A+ — 100/100)

*No browser-fingerprinting libraries detected*

- **[PASS]** No browser-fingerprinting libraries detected

### Cross-Site Cookies (SameSite=None) (A+ — 100/100)

*No SameSite=None cookies -- no cross-site travel surface*

- **[PASS]** No cookies opted in to cross-site travel (SameSite=None)

### Beacon Tracking (sendBeacon) (A+ — 100/100)

*No navigator.sendBeacon usage detected in inline scripts*

- **[PASS]** No navigator.sendBeacon usage detected in inline scripts

---

## Legal

### Legal Page Ecosystem (F — 0/100)

*0 of 7 expected legal pages detected*

- **[WARNING]** Privacy Policy not detected — No link matching common Privacy Policy URL patterns or link text was found. Most websites are expected to have a Privacy Policy, especially those collecting user data.
- **[WARNING]** Terms of Service not detected — No link matching common Terms of Service URL patterns or link text was found. Most websites are expected to have a Terms of Service, especially those collecting user data.
- **[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 (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: European TLD detected: .fr. 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

*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 (B — 75/100)

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

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

### Operational Status Page (B — 80/100)

*No status page link detected*

- **[INFO]** No operational status page link detected — Status pages communicate planned maintenance and incidents to users -- a hallmark of operationally-mature services. Most SaaS teams publish one via Atlassian Statuspage, Instatus, BetterUptime, or a self-hosted Cachet. Smaller sites legitimately don't need one; flagged as Info, not a failure.

### 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)

### Health Check Endpoint (B — 80/100)

*No conventional health endpoint found*

- **[INFO]** No conventional health endpoint found — Health endpoints (/health, /healthz, /status, /ping, /api/health) let uptime monitors, load balancers, and orchestration systems (Kubernetes, ECS, Fly.io) verify the service is alive. Marketing sites and small services often skip them legitimately; flagged as Info, not a failure. Probe results: /api/health: 404, /health: 404, /healthz: 404, /ping: 404, /status: 404.

### CDN Cache Observability (A+ — 100/100)

*1 cache header(s) present*

- **[PASS]** CDN cache state observable via 1 header(s)

---

## Accessibility

### Landmark Structure (B — 75/100)

*47 landmarks*

- **[PASS]** <main> landmark present
- **[PASS]** 8 <nav> landmark(s) found
- **[WARNING]** 6 of 8 <nav> elements are unlabeled — Multiple navigations need aria-label to distinguish them for screen readers.
- **[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.
- **[PASS]** Search landmark present

### Heading Hierarchy (A — 90/100)

*28 headings*

- **[WARNING]** Multiple H1 headings (25 found) — A page should have only one H1. Multiple H1s dilute the document outline.

### Heading Text Quality (A+ — 100/100)

*All 28 heading(s) have substantive, well-formed text*

- **[PASS]** Heading text quality is clean -- no placeholder, length, or styling issues

### Alt Text Quality (A+ — 100/100)

*All 27 images OK*

- **[PASS]** 27 image(s) with good alt text

### Form Accessibility (C — 55/100)

*3 of 14 controls have issues*

- **[CRITICAL]** 3 control(s) without accessible label — Form controls need a <label>, aria-label, or aria-labelledby for screen readers.
- **[PASS]** 11 control(s) properly labeled

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

*429 links, 3 buttons — all OK*

- **[PASS]** 429 link(s) with descriptive text

### Form Input Types (A+ — 100/100)

*14 form control(s) checked, no type mismatches*

- **[PASS]** No input-type mismatches detected

### Form Input Quality (B — 82/100)

*2 input-semantic issue(s) across 14 form control(s)*

- **[INFO]** 1 password field(s) missing or with invalid `autocomplete` — Password managers fill / save passwords only when `autocomplete` is exactly `current-password` (login) or `new-password` (registration / change). Empty, `off`, `password`, or other values silently disable the manager UX. Sample: <input type="password" name="account[password]">.
- **[INFO]** 1 login form field(s) missing `autocomplete=username` (or `email`) — On a page with a password input, the matching username / email field needs `autocomplete="username"` or `autocomplete="email"` -- otherwise the password manager can't identify which field carries the login identifier and silently skips autofill on the whole form. Sample: <input type="text" name="account[login]">.

### Mobile Keyboard & Autofill (A+ — 100/100)

*No autofill-eligible form controls*

- **[PASS]** No autofill-eligible form controls (no name/email/tel/address fields)

### Document Language (A+ — 100/100)

*Lang attribute set to "fr"*

- **[PASS]** <html lang="fr"> is set and valid

### Tabindex Anti-Patterns (A+ — 100/100)

*No explicit tabindex attributes found*

- **[PASS]** No explicit tabindex attributes found

### Iframe Accessibility (A+ — 100/100)

*No iframes on this page*

- **[PASS]** No iframes on this page

### Tap Target Adequacy (D — 60/100)

*20 tap target(s) too small or too close together*

- **[WARNING]** 20 tap target(s) too small or too close to neighbors — WCAG 2.5.5 (Level AAA) requires interactive targets to be at least 44x44 CSS pixels; WCAG 2.5.8 (Level AA, added in 2.2) requires 24x24 minimum. Failing targets cause mis-taps for users with motor impairments, large fingers, or shaky hands -- and are a major bounce-rate driver on mobile commerce flows. Lighthouse measures rendered rects + adjacent-element spacing; the failing list is in the Lighthouse 'tap-targets' audit detail panel.

### Mobile-Readable Font Sizes (B — 90/100)

*95% of visible text renders at >= 12 CSS px (16 below threshold)*

- **[INFO]** 16 text node(s) render below 12 CSS pixels on mobile — Mobile browsers default the root font-size to 16 px; text below ~ 12 px (75% of root) is hard to read without zooming. WCAG 1.4.4 (Resize Text) requires the page to support 200% zoom without loss of functionality -- which most layouts handle, but small base text still costs readability and conversion. Audit which selectors set sizes below 12 px (often footers, fine print, table cells) and bump them to 14-16 px or use rem units that scale with user preferences. Examples: <div> 10.6px ("juil."); <div> 10.6px ("2026"); <div> 10.6px ("août"); <div> 10.6px ("2026"); <div> 10.6px ("août").

---

## UX

### 404 Error Page (A — 90/100)

*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
- **[PASS]** Search form present on 404 page

### Favicon & Branding (F — 30/100)

*2 icon(s) detected*

- **[PASS]** favicon.ico present at site root
- **[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.

### PWA Depth (A+ — 100/100)

*No PWA depth issues detected*

- **[PASS]** No PWA depth issues detected

### 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 — 35/100)

*1 navigation pattern(s)*

- **[PASS]** Search functionality detected
- **[PASS]** 8 navigation landmark(s) detected

### Mobile UX Depth (A+ — 97/100)

*1 mobile-depth signal(s) detected*

- **[INFO]** No `<meta name="theme-color">` -- browser chrome falls back to default — Without `theme-color`, Android Chrome's status bar and iOS Safari's toolbar fall back to a generic gray. Adding a single hex color in `<meta name="theme-color" content="#0066cc">` tints them to your brand color across all mobile browsers.

---

## 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: 21 chars*

- **[PASS]** Page title is set
- **[WARNING]** Title is only 21 characters — consider expanding
- **[INFO]** Meta description is 216 characters — truncated on mobile (~160 char limit)
- **[PASS]** Title and H1 are well-aligned

### Title Style Depth (A+ — 100/100)

*Title style is clean -- consistent separator, no stale year, no keyword stuffing*

- **[PASS]** Title style is clean

### Content Depth (A+ — 100/100)

*2954 words, Fairly Difficult*

- **[PASS]** Page has 2954 words — good depth for search engines
- **[INFO]** Reading level: Fairly Difficult (grade 10)

### Internal Links (A+ — 95/100)

*355 internal, 74 external*

- **[PASS]** 355 internal links (83%)
- **[PASS]** 100% of links use descriptive anchor text
- **[INFO]** Page has 429 links — consider reducing
- **[INFO]** 355 internal / 74 external links

### Image SEO (B — 80/100)

*27 images, 12 descriptive filenames*

- **[WARNING]** 56% of images have non-descriptive filenames — Search engines use filenames as a signal. Rename to descriptive names like 'team-photo.jpg'.

### Hreflang

*0 hreflang tags*


### Hreflang URL Quality (A+ — 100/100)

*No hreflang tags on the page*

- **[PASS]** No hreflang tags on the page

### Hreflang Completeness (A+ — 100/100)

*No hreflang tags on this page -- check is N/A (single-language site or unannotated)*

- **[PASS]** No hreflang tags found -- completeness check is N/A

### Sitemap Freshness (C — 70/100)

*Sitemap exists but no <lastmod> entries*

- **[INFO]** Sitemap has no <lastmod> entries — Without lastmod, Google can't tell which URLs have changed since the last crawl -- it falls back to crawling everything periodically. Adding lastmod (date or ISO 8601 timestamp) on each <url> entry signals freshness so the crawler prioritizes recently-modified pages.

### Sitemap × Robots Consistency (A+ — 100/100)

*No sitemap-vs-robots conflicts detected*

- **[PASS]** Sitemap URLs are not blocked by robots.txt

### Sitemap Hygiene (B — 75/100)

*1 hygiene issue(s) on a 0-URL sitemap*

- **[WARNING]** Sitemap is empty -- 0 URLs listed — The sitemap file is reachable and parses as valid XML, but contains no `<url>` entries. Common causes: a templated sitemap that didn't iterate the URL set during build, a static placeholder shipped to production, or a CMS that lost its URL index. Search engines fetch and discard empty sitemaps.

### Markup Quality (A+ — 95/100)

*1 markup-quality issue(s) detected*

- **[INFO]** 3 redundant ARIA role attribute(s) on native semantic element(s) — The W3C "ARIA in HTML" spec calls this its first rule: don't use ARIA when a native HTML element already conveys the semantics. `<button role="button">`, `<a href role="link">`, `<nav role="navigation">`, `<main role="main">` -- the role attribute either does nothing or shadows the native semantic, occasionally breaking assistive-tech behaviors. Remove the redundant role.

---

## Sustainability

### CO2 Per Page Load (B — 70/100)

*0.51g CO2 per view*

- **[INFO]** 0.51g CO2 per page view — This page transfers 1.8 MB, producing an estimated 0.51g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.10g, network 0.09g, end-user device 0.33g.
- **[INFO]** At 10,000 monthly views: 61.6 kg CO2/year — With 10,000 page views per month, this page would generate approximately 61.6 kg of CO2 annually — equivalent to charging 7702 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)

*99% cached*

- **[PASS]** 99% reduction on repeat visits — Returning visitors download only 20 KB (vs 1856 KB first visit). 34 of 35 resources are served from browser cache, saving 0.51g CO2 per repeat visit.
- **[INFO]** Repeat visit: 0.01g CO2 (first visit: 0.51g)

### Carbon Budget (B — 70/100)

*41th percentile*

- **[INFO]** 0.51g CO2 — below the median website (0.60g) — Better than an estimated 59% of websites, but above the sustainability target of 0.50g. Reducing page weight would help reach the target.
- **[INFO]** Estimated 41th 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 98 KB of potential savings identified. Your page is well-optimized for size.

### Web Font Weight Variants (B — 90/100)

*No detectable Google Fonts weights*

- **[INFO]** No detectable Google Fonts weights — The analyzer detects font weights via Google Fonts URL parameters (~70% of font-using sites). Self-hosted fonts and non-Google CDN fonts aren't visible to URL-based detection. If you self-host fonts, manually audit how many @font-face weights you ship -- 2-3 weights per family is typically enough; 5+ is usually unused payload.

---

---

*Generated by [BeaverCheck](https://beavercheck.com) — https://beavercheck.com/results/45f7d183-ee0a-473c-b796-dbe654688472*