# BeaverCheck Audit Report — https://www.blablacar.fr

**Date:** April 7, 2026  
**URL:** https://www.blablacar.fr  
**Overall Grade:** C (70/100)  
**Report:** https://beavercheck.com/results/f5fbebff-3d21-2fc2-ed7a-f8440d28b6d2

## Top Findings

1. **[CRITICAL]** Access-Control-Allow-Origin: * with credentials — critical misconfiguration — Security > CORS Configuration
2. **[CRITICAL]** Content-Security-Policy header is missing — Security > Security Headers
3. **[CRITICAL]** HSTS header is missing — Security > Security Headers
4. **[CRITICAL]** No Content-Security-Policy header found — Security > Content Security Policy
5. **[WARNING]** Certificate expires soon (29 days remaining) — Security > TLS & Certificates

---

## Lighthouse Scores

| Category | Score |
|----------|-------|
| Performance | 39 |
| Accessibility | 100 |
| Best Practices | 100 |
| SEO | 100 |

---

## Security

### Security Headers (F — 10/100)

*2 of 10 headers properly configured*

- **[CRITICAL]** HSTS header is missing — Strict-Transport-Security forces browsers to use HTTPS, preventing downgrade attacks. Add the header with a max-age of at least 1 year.
- **[WARNING]** X-Content-Type-Options header is missing — This header prevents MIME-type sniffing, which can lead to XSS attacks. Set it to 'nosniff'.
- **[WARNING]** X-Frame-Options header is missing — This header prevents clickjacking by controlling who can embed your page in a frame. Set it to DENY or SAMEORIGIN.
- **[WARNING]** Referrer-Policy header is missing — Controls how much referrer information is sent with requests. Set to 'strict-origin-when-cross-origin' or stricter.
- **[WARNING]** Permissions-Policy header is missing — Controls which browser features (camera, microphone, geolocation) are allowed. Set it to restrict unused features.
- **[CRITICAL]** Content-Security-Policy header is missing — CSP is the most important header for preventing XSS attacks. See the CSP section for detailed analysis.
- **[WARNING]** Cross-Origin-Opener-Policy header is missing — COOP isolates your browsing context, preventing cross-origin side-channel attacks. Set to 'same-origin'.
- **[WARNING]** Cross-Origin-Embedder-Policy header is missing — COEP prevents loading cross-origin resources without explicit permission. Required for SharedArrayBuffer and high-resolution timers.
- **[PASS]** X-Powered-By header is not present
- **[PASS]** Server header is present without version info

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

*No enforcing CSP policy found*

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

### TLS & Certificates (A — 90/100)

*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 29 days)
- **[WARNING]** Certificate expires soon (29 days remaining) — Renew the certificate before it expires to avoid browser warnings.
- **[PASS]** Certificate chain has 2 certificates
- **[PASS]** Certificate uses modern signature algorithm
- **[PASS]** Certificate covers 58 domain(s)
- **[PASS]** Certificate is issued by a trusted CA

### Cookie Security (A+ — 95/100)

*1 cookies analyzed, 2 checks passed*

- **[PASS]** Cookie 'datadome' has the Secure flag
- **[WARNING]** Cookie 'datadome' is missing the HttpOnly flag — Without HttpOnly, this cookie can be accessed by JavaScript, making it vulnerable to XSS-based theft.
- **[PASS]** Cookie 'datadome' has SameSite=Lax

---

## Advanced Security

### Subresource Integrity (F — 20/100)

*0 of 37 external resources have SRI*

- **[WARNING]** External script from scripts.clarity.ms lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from analytics.tiktok.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from www.clarity.ms lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from analytics.tiktok.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from www.googletagmanager.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from www.googletagmanager.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from tr.snapchat.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from www.googletagmanager.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from analytics.tiktok.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from bat.bing.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from connect.facebook.net lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from connect.facebook.net lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from sc-static.net lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from www.google-analytics.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from www.dwin1.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from www.googletagmanager.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from sdk.privacy-center.org lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from www.googletagmanager.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from ddome-tag.blablacar.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from try.abtasty.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External link from cdn.blablacar.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External link from cdn.blablacar.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External link from cdn.blablacar.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from sdk.privacy-center.org lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from bat.bing.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from googleads.g.doubleclick.net lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from cdn.blablacar.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from cdn.blablacar.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from cdn.blablacar.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from cdn.blablacar.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from cdn.blablacar.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from cdn.blablacar.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from cdn.blablacar.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from cdn.blablacar.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from cdn.blablacar.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from cdn.blablacar.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from cdn.blablacar.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*

- **[PASS]** security.txt is present — good practice
- **[PASS]** No sensitive files exposed

### Email Security (F — 30/100)

*No DMARC*

- **[WARNING]** No DMARC record found — Without DMARC, email receivers have no policy for handling authentication failures.

### 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 (F — 10/100)

*Origin: **

- **[CRITICAL]** Access-Control-Allow-Origin: * with credentials — critical misconfiguration — Browsers block this, but it signals a server-side misconfiguration that may be exploitable.
- **[INFO]** Origin reflection not testable with a single request — Some servers reflect the request Origin header. This requires manual testing with a crafted Origin header.

---

## Performance

### Page Weight Budget (D — 45/100)

*2.4 MB transferred, 78 requests*

- **[INFO]** Page weighs 9.2 MB (2.4 MB transferred)
- **[WARNING]** JavaScript is 1.6 MB — consider code splitting or lazy loading — Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
- **[INFO]** 78 HTTP requests
- **[INFO]** Estimated 0.50 g CO2 per page load

### Third-Party Impact (D — 50/100)

*99% third-party, 0 ms blocking*

- **[WARNING]** Third-party code accounts for 99% of page weight (2.3 MiB of 2.4 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 — 65/100)

*11 images, 0 KB saveable*

- **[WARNING]** https://cdn.blablacar.com/k/a/images/train-ddad238... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://cdn.blablacar.com/didomi/blablacar-logo-2.... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.

### JS Execution Cost (F — 20/100)

*5579ms total JS execution*

- **[WARNING]** https://cdn.blablacar.com/k/a/6215.6f0cd314c52834b...: 1587ms CPU time
- **[WARNING]** https://cdn.blablacar.com/k/a/index.59085c37e31fdd...: 865ms CPU time
- **[WARNING]** https://www.blablacar.fr/: 759ms CPU time
- **[WARNING]** Unattributable: 660ms CPU time
- **[WARNING]** https://ddome-tag.blablacar.com/tags.js: 290ms CPU time
- **[WARNING]** Third-party scripts: 4820ms (86% of total)

### Font Loading (A+ — 100/100)

*3 fonts (175 KB)*

- **[INFO]** 3 font(s) use font-display: swap (FOUT risk but functional)

### JS Bundles (F — 20/100)

*31 scripts, 656 KB unused*

- **[WARNING]** https://cdn.blablacar.com/k/a/6215.6f0cd314c52834b...: 246 KB unused (60%) — Consider code splitting or tree shaking to reduce unused code.
- **[WARNING]** https://cdn.blablacar.com/k/a/index.59085c37e31fdd...: 218 KB unused (50%) — Consider code splitting or tree shaking to reduce unused code.
- **[WARNING]** https://www.googletagmanager.com/gtm.js?id=GTM-TVP...: 79 KB unused (45%) — Consider code splitting or tree shaking to reduce unused code.
- **[WARNING]** https://cdn.blablacar.com/k/a/6187.cab3118d515f4ea...: 48 KB unused (73%) — Consider code splitting or tree shaking to reduce unused code.
- **[WARNING]** https://sdk.privacy-center.org/sdk/c8e2e67c354c0d6...: 44 KB unused (50%) — Consider code splitting or tree shaking to reduce unused code.
- **[INFO]** Total unused JavaScript: 656 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)

*9 hints, 0 missing preconnects*

- **[PASS]** Page uses 9 resource hint(s)

### Render-Blocking Resources (A+ — 100/100)

*No render-blocking resources detected*

- **[PASS]** No render-blocking resources detected in <head>

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

*No third-party resources detected*


---

## Content Quality

### Links (F — 38/100)

*178 links checked, 113 healthy, 64 broken*

- **[CRITICAL]** 113 of 178 links are healthy
- **[WARNING]** Broken link: https://www.blablacar.fr/ — Found in <link href>. Returns HTTP 403.
- **[WARNING]** Broken link: https://www.blablacar.fr — Found in <link href>. Returns HTTP 403.
- **[WARNING]** Broken link: https://www.blablacar.com.pe — Found in <link href>. Get "https://www.blablacar.com.pe": resolve www.blablacar.com.pe: lookup www.blablacar.com.pe: no such host
- **[WARNING]** Broken link: https://www.blablacar.co.th — Found in <link href>. Get "https://www.blablacar.co.th": resolve www.blablacar.co.th: lookup www.blablacar.co.th: no such host
- **[WARNING]** Broken link: https://cdn.blablacar.com/k/a/ — Found in <link href>. Returns HTTP 404.
- **[CRITICAL]** Broken link: https://www.blablacar.fr/carpool — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://www.blablacar.fr/bus — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://www.blablacar.fr/train — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://www.blablacar.fr/search-car-sharing — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://www.blablacar.fr/offer-seats — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://www.blablacar.fr/login — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://www.blablacar.fr/register — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://www.blablacar.fr/bus/routes/paris-2/reims-2 — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://www.blablacar.fr/bus/routes/metz-2/reims-2 — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://www.blablacar.fr/bus/routes/nancy-2/reims-2 — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://www.blablacar.fr/bus/routes/chessy-6/reims-2 — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://www.blablacar.fr/bus/routes/paris-aeroport-roissy... — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://www.blablacar.fr/bus/routes/reims-2/paris-2 — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://www.blablacar.fr/bus/routes/lyon-3/paris-2 — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://www.blablacar.fr/bus/routes/metz-2/paris-2 — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://www.blablacar.fr/bus/routes/bruxelles-1/paris-2 — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://www.blablacar.fr/bus/routes/geneve-1/paris-2 — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://www.blablacar.fr/bus/routes/paris-2/lyon-3 — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://www.blablacar.fr/bus/routes/annecy-2/lyon-3 — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://www.blablacar.fr/bus/routes/clermont-ferrand-3/ly... — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://www.blablacar.fr/bus/routes/geneve-1/lyon-3 — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://www.blablacar.fr/bus/routes/saint-etienne-3/lyon-3 — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://www.blablacar.fr/bus/routes/toulouse-2/bordeaux-2 — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://www.blablacar.fr/bus/routes/lyon-3/bordeaux-2 — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://www.blablacar.fr/bus/routes/nantes-3/bordeaux-2 — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://www.blablacar.fr/bus/routes/rennes-2/bordeaux-2 — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://www.blablacar.fr/bus/routes/clermont-ferrand-3/bo... — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://www.blablacar.fr/offer-seats/departure — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://www.blablacar.fr/carpool/travel-tips/arles — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://www.blablacar.fr/ride-sharing/paris/rennes — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://www.blablacar.fr/ride-sharing/lille/paris — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://www.blablacar.fr/ride-sharing/annecy/lyon — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://www.blablacar.fr/ride-sharing/angers/rennes — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://www.blablacar.fr/ride-sharing/lille/reims — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://www.blablacar.fr/ride-sharing/toulouse/paris — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://www.blablacar.fr/ride-sharing/all-products — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://www.blablacar.fr/ride-sharing/all-cities — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://www.blablacar.fr/bus/countries — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://www.blablacar.fr/carpool/routes/rennes/orvault — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://www.blablacar.fr/carpool/routes/angers/rennes — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://www.blablacar.fr/carpool/routes/nantes/rennes — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://www.blablacar.fr/carpool/routes/rennes/paris — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://www.blablacar.fr/carpool/routes/annecy/lyon — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://www.blablacar.fr/carpool/routes/grenoble/lyon — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://www.blablacar.fr/carpool/routes/lille/paris — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://www.blablacar.fr/carpool/routes — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://www.blablacar.fr/carpool/travel-tips/ — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://www.blablacar.fr/bus/routes/paris-2/amsterdam-4 — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://www.blablacar.fr/bus/routes/paris-2/bruxelles-1 — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://www.blablacar.fr/bus/routes/paris-2/barcelone-1 — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://www.blablacar.fr/bus/routes/paris-2/grenoble-2 — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://www.blablacar.fr/bus/routes/toulon-4/montpellier-2 — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://www.blablacar.fr/bus/routes/chamonix-2/lyon-3 — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://www.blablacar.fr/bus/routes/lyon-3/grenoble-2 — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://www.blablacar.fr/bus/routes — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://www.blablacar.fr/bus/destinations — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://www.blablacar.fr/bus/companies/blablacar-bus — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://www.blablacar.fr/carpool/community/bons-plans — Found in <a href>. Returns HTTP 403.
- **[INFO]** Long redirect chain: https://youtube.com/c/BlaBlaCarFR (3 hops)
- **[WARNING]** Broken link: https://www.blablacar.fr/browser-support — Found in <script src>. Returns HTTP 403.

### Mixed Content (A+ — 100/100)

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

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

### Open Graph (D — 60/100)

*Open Graph tags need attention — social sharing previews may be incomplete.*

- **[WARNING]** Missing og:title — The og:title tag controls the title shown in social sharing previews.
- **[WARNING]** Missing og:description — The og:description tag controls the description in social sharing previews.
- **[INFO]** Missing og:url — The og:url tag specifies the canonical URL for the shared content.
- **[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 — 85/100)

*1 A records, 54 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
- **[INFO]** No NS records found
- **[INFO]** No MX records — email not configured via DNS
- **[INFO]** CAA records not checked — CAA record lookup requires a specialized DNS resolver. This check will be available in a future update.
- **[INFO]** No SPF record found in TXT records — SPF helps prevent email spoofing. Add a TXT record starting with 'v=spf1'.
- **[PASS]** DNS resolution time: 54 ms

### Redirect Chain (A+ — 100/100)

*0 redirect(s), 86 ms total*


### IPv6 Readiness (C — 60/100)

*No IPv6 support*

- **[INFO]** No IPv6 (AAAA) records found — IPv6 support is increasingly important for global accessibility. About 40% of internet users have IPv6 connectivity.

### Crawlability (B — 75/100)

*no robots.txt, no sitemap*

- **[INFO]** No robots.txt found — robots.txt is optional but recommended. It tells search engine crawlers which pages to index.
- **[INFO]** No sitemap.xml found — A sitemap helps search engines discover and index your pages more efficiently.

### URL Variants (A — 90/100)

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

- **[PASS]** www/non-www redirect configured correctly (preferred: www)
- **[WARNING]** HTTP→HTTPS redirect uses 302 instead of 301

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

*blablacar.fr — via NAMESHIELD, 15 years, 9 months old, hosted on Google Cloud*

- **[PASS]** Domain registered until Dec 24, 2026 (8 months remaining)
- **[PASS]** DNSSEC is enabled
- **[PASS]** Registrar: NAMESHIELD
- **[PASS]** Hosting: Google Cloud

---

## 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
- **[PASS]** 1 cookie(s) set on initial load (functional)
- **[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 (F — 30/100)

*8 trackers detected*

- **[INFO]** 8 third-party trackers detected — Found 5 analytics, 2 advertising, 0 marketing, 1 tag manager trackers.
- **[WARNING]** 2 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 8 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.
- **[WARNING]** Session replay tool detected: Microsoft Clarity — Session replay tools record user interactions. These require clear disclosure and often explicit consent under GDPR.

---

## 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

*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 (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.

### Third-Party Data Sharing

*4 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]** 4 third-party services across 3 categories — 4 third-party services detected across 3 categories: Analytics (1), Tag Management (1), Advertising (2). Each of these services receives some user data from your site visitors.
- **[INFO]** Google Analytics (Analytics) — Detected via script URL. Typically collects: Page views, User behavior, Demographics, Device info, IP address. Privacy policy: https://policies.google.com/privacy. Data Processing Agreement available.
- **[INFO]** Google Tag Manager (Tag Management) — Detected via script URL. Typically collects: Orchestrates other tracking scripts, Page views. Privacy policy: https://policies.google.com/privacy. Data Processing Agreement available.
- **[INFO]** Facebook Pixel (Advertising) — Detected via script URL. Typically collects: Page views, Conversions, User behavior, Ad targeting. Privacy policy: https://www.facebook.com/privacy/policy. Data Processing Agreement available.
- **[INFO]** TikTok Pixel (Advertising) — Detected via script URL. Typically collects: Page views, Conversions, Ad targeting. Privacy policy: https://www.tiktok.com/legal/privacy-policy. Data Processing Agreement available.

### 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)

*Google Cloud CDN*

- **[PASS]** Site is served via Google Cloud CDN CDN

### HTTP Caching (D — 40/100)

*no-store (uncacheable)*

- **[INFO]** Cache-Control: no-store prevents all caching — Intentional for dynamic content, but increases server load for every page view.
- **[INFO]** No ETag or Last-Modified header — Conditional requests (304 Not Modified) are not possible without validators.

### Transport Security (A — 85/100)

*HTTP/3, HSTS, and TLS version analysis*

- **[PASS]** HTTP/3 (QUIC) supported — The server advertises HTTP/3 via Alt-Svc for faster connections on mobile networks.
- **[WARNING]** Missing Strict-Transport-Security header — HSTS tells browsers to only use HTTPS, preventing SSL stripping attacks.
- **[PASS]** TLS 1.3 in use (fastest handshake, 1-RTT)

---

## Accessibility

### Landmark Structure (A — 85/100)

*5 landmarks*

- **[PASS]** <main> landmark present
- **[PASS]** 2 <nav> landmark(s) found
- **[PASS]** All <nav> elements are properly labeled
- **[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+ — 100/100)

*14 headings*

- **[PASS]** Single H1 present

### Alt Text Quality (A+ — 100/100)

*All 14 images OK*

- **[PASS]** 5 decorative image(s) correctly marked
- **[PASS]** 9 image(s) with good alt text

### Form Accessibility (A+ — 100/100)

*All 4 controls labeled*

- **[PASS]** 4 control(s) properly labeled

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

*127 links, 17 buttons — all OK*

- **[WARNING]** 20 link(s) open in new tab without warning — Add '(opens in new tab)' to link text or aria-label.
- **[PASS]** 107 link(s) with descriptive text

---

## UX

### 404 Error Page (F — 25/100)

*HTTP 403, custom page*

- **[WARNING]** Unexpected status code: HTTP 403 — Expected HTTP 404 but received 403. This may confuse search engine crawlers.
- **[PASS]** Custom styled 404 page

### Favicon & Branding (A — 90/100)

*7 icon(s) detected*

- **[PASS]** favicon.ico present at site root
- **[PASS]** HTML icon links detected
- **[PASS]** Apple touch icon present
- **[PASS]** SVG favicon detected — scales perfectly to any size
- **[PASS]** Multiple icon sizes detected

### Web Manifest (A — 85/100)

*PWA-ready*

- **[PASS]** Meets PWA install criteria
- **[PASS]** Name present: BlaBlaCar
- **[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 — 15/100)

*No navigation patterns*

- **[PASS]** 2 navigation landmark(s) detected
- **[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*

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

### Meta Tags (A+ — 100/100)

*Title: 66 chars*

- **[PASS]** Page title is set
- **[INFO]** Title is 66 characters — may be truncated in search results
- **[PASS]** Title and H1 are well-aligned

### Content Depth (C — 65/100)

*864 words, Difficult*

- **[PASS]** Page has 864 words of content
- **[INFO]** Text-to-HTML ratio is 3% — Very low ratio suggests heavy framework overhead or boilerplate.
- **[INFO]** Reading level: Difficult (grade 14)

### Internal Links (A+ — 100/100)

*101 internal, 26 external*

- **[PASS]** 101 internal links (80%)
- **[PASS]** 100% of links use descriptive anchor text
- **[INFO]** 101 internal / 26 external links

### Image SEO (A+ — 100/100)

*14 images, 13 descriptive filenames*

- **[INFO]** 1 image(s) have hash/generic filenames

### Hreflang

*0 hreflang tags*


---

## Sustainability

### CO2 Per Page Load (B — 70/100)

*0.56g CO2 per view*

- **[INFO]** 0.56g CO2 per page view — This page transfers 2.4 MB, producing an estimated 0.56g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.01g, network 0.12g, end-user device 0.43g.
- **[INFO]** At 10,000 monthly views: 67.3 kg CO2/year — With 10,000 page views per month, this page would generate approximately 67.3 kg of CO2 annually — equivalent to charging 8408 smartphones.
- **[PASS]** Green hosting reduces data center emissions

### Green Hosting (B — 80/100)

*Green (hosting)*

- **[PASS]** Google Cloud uses renewable energy
- **[INFO]** Google Cloud: Verified by the Green Web Foundation
- **[INFO]** Google Cloud CDN: Inherits Google Cloud regional renewable mix
- **[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 2425 KB first visit). 77 of 78 resources are served from browser cache, saving 0.56g CO2 per repeat visit.
- **[INFO]** Repeat visit: 0.00g CO2 (first visit: 0.56g)

### Carbon Budget (B — 70/100)

*46th percentile*

- **[INFO]** 0.56g CO2 — below the median website (0.60g) — Better than an estimated 54% of websites, but above the sustainability target of 0.50g. Reducing page weight would help reach the target.
- **[INFO]** Estimated 46th 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 655 KB (27%) could be eliminated: 0 KB via better compression, 0 KB via modern image formats, 655 KB of unused JavaScript. This wasted data produces 0.15g of unnecessary CO2 per page view.

---

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*Generated by [BeaverCheck](https://beavercheck.com) — https://beavercheck.com/results/f5fbebff-3d21-2fc2-ed7a-f8440d28b6d2*