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

**Date:** April 15, 2026  
**URL:** https://babbel.com  
**Overall Grade:** C (76/100)  
**Report:** https://beavercheck.com/results/7c743242-f06f-4be7-90c1-2cc96c2420a1

## Top Findings

1. **[CRITICAL]** Content-Security-Policy header is missing — Security > Security Headers
2. **[CRITICAL]** HSTS header is missing — Security > Security Headers
3. **[CRITICAL]** No Content-Security-Policy header found — Security > Content Security Policy
4. **[WARNING]** 56 third-party resources (100% of weight) — Performance > Page Weight Inventory
5. **[WARNING]** Cross-Origin-Embedder-Policy header is missing — Security > Security Headers

---

## Lighthouse Scores

| Category | Score |
|----------|-------|
| Performance | 0 |
| Accessibility | 96 |
| Best Practices | 100 |
| SEO | 92 |

---

## 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+ — 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 191 days)
- **[PASS]** Certificate chain has 3 certificates
- **[PASS]** Certificate uses modern signature algorithm
- **[PASS]** Certificate covers 1 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 7 external resources have SRI*

- **[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 wt.babbel.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from cdn.speedcurve.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from wt.babbel.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from cdn.cookielaw.org lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from wt.babbel.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from cdn.cookielaw.org 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 — 85/100)

*DMARC: quarantine*

- **[PASS]** DMARC policy is quarantine — good protection

### Permissions-Policy (D — 40/100)

*No header set*

- **[WARNING]** No Permissions-Policy header — Consider adding a Permissions-Policy header to restrict browser feature access from embedded content.

### CORS Configuration (B — 80/100)

*No CORS headers*

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

---

## Performance

### Page Weight Budget (D — 50/100)

*2.2 MB transferred, 57 requests*

- **[INFO]** Page weighs 3.6 MB (2.2 MB transferred)
- **[WARNING]** JavaScript is 1.1 MB — consider code splitting or lazy loading — Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
- **[INFO]** Fonts are 275 KB — consider subsetting or using system fonts — Subset fonts to include only used characters, or switch to system font stacks.
- **[INFO]** 57 HTTP requests
- **[INFO]** Estimated 0.47 g CO2 per page load

### Third-Party Impact (D — 50/100)

*100% third-party, 0 ms blocking*

- **[WARNING]** Third-party code accounts for 100% of page weight (2.2 MiB of 2.2 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 (B — 75/100)

*9 images, 0 KB saveable*

- **[PASS]** All images are well-optimized

### JS Execution Cost (D — 40/100)

*2132ms total JS execution*

- **[WARNING]** Unattributable: 487ms CPU time
- **[WARNING]** https://www.babbel.com/edge/?id=GTM-MDD3PT: 374ms CPU time
- **[WARNING]** https://www.babbel.com/ebb938fae15463c06bab6135f2c...: 351ms CPU time
- **[WARNING]** https://www.babbel.com/: 307ms CPU time
- **[INFO]** https://cdn.cookielaw.org/scripttemplates/202501.2...: 247ms CPU time
- **[WARNING]** Third-party scripts: 2132ms (100% of total)

### Font Loading (A+ — 100/100)

*4 fonts (275 KB)*

- **[INFO]** 4 font(s) use font-display: swap (FOUT risk but functional)

### JS Bundles (A+ — 100/100)

*26 scripts, 0 KB unused*


### 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)

*3 hints, 0 missing preconnects*

- **[PASS]** Page uses 3 resource hint(s)

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

*57 resources · 2.2 MB · 0 KB savings available*

- **[WARNING]** Page weight 1.2 MB over 1MB target
- **[WARNING]** 56 third-party resources (100% 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*


---

## Content Quality

### Links (D — 60/100)

*111 links checked, 103 healthy, 8 broken*

- **[CRITICAL]** 103 of 111 links are healthy
- **[WARNING]** Broken link: https://cdn.cookielaw.org — Found in <link href>. Returns HTTP 400.
- **[WARNING]** Broken link: https://babbel.com/_next/image?url=https%3A%2F%2Fimages.c... — Found in <img src>. Returns HTTP 400.
- **[WARNING]** Broken link: https://babbel.com/_next/image?url=https%3A%2F%2Fimages.c... — Found in <img src>. Returns HTTP 400.
- **[WARNING]** Broken link: https://babbel.com/_next/image?url=https%3A%2F%2Fimages.c... — Found in <img src>. Returns HTTP 400.
- **[WARNING]** Broken link: https://babbel.com/_next/image?url=https%3A%2F%2Fimages.c... — Found in <img src>. Returns HTTP 400.
- **[WARNING]** Broken link: https://babbel.com/_next/image?url=https%3A%2F%2Fimages.c... — Found in <img src>. Returns HTTP 400.
- **[WARNING]** Broken link: https://babbel.com/_next/image?url=https%3A%2F%2Fimages.c... — Found in <img src>. Returns HTTP 400.
- **[WARNING]** Broken link: https://babbel.com/_next/image?url=https%3A%2F%2Fimages.c... — Found in <img src>. Returns HTTP 400.

### 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.

### Structured Data (A+ — 100/100)

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

- **[PASS]** Custom type "ItemList" — unable to validate specific properties

---

## Infrastructure

### DNS Records (A+ — 100/100)

*4 A records, 110 ms lookup*

- **[PASS]** Resolves to 4 IPv4 address(es)
- **[INFO]** No IPv6 (AAAA) records
- **[PASS]** 4 nameserver(s) configured
- **[PASS]** 6 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: 110 ms

### Redirect Chain (A — 90/100)

*1 redirect(s), 280 ms total*

- **[PASS]** Single redirect
- **[INFO]** WWW normalization redirect

### IPv6 Readiness (C — 60/100)

*No IPv6 support*

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

### Crawlability (A+ — 100/100)

*robots.txt present, sitemap with 246 URLs*

- **[PASS]** robots.txt is present
- **[PASS]** sitemap.xml is present
- **[PASS]** sitemap.xml is valid XML
- **[PASS]** sitemap.xml contains 246 entries
- **[PASS]** robots.txt references sitemap

### URL Variants (B — 75/100)

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

- **[CRITICAL]** Both www and non-www versions serve content
- **[PASS]** HTTP correctly 301-redirects to HTTPS

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

*babbel.com — via Amazon Registrar, Inc., 26 years, 5 months old, hosted on AWS*

- **[PASS]** Domain registered until Mar 27, 2027 (11 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: Amazon Registrar, Inc.
- **[WARNING]** Registrar lock is NOT enabled — The domain can be transferred without an unlock step. Enable registrar lock (clientTransferProhibited) in your registrar's control panel to protect against unauthorized or accidental transfers.
- **[PASS]** Hosting: AWS

---

## Compliance

### WCAG Compliance (A+ — 100/100)

*No testable criteria*


### Cookie Consent & Privacy (B — 80/100)

*No consent signals detected*

- **[WARNING]** No privacy policy link detected — A privacy policy page is recommended for transparency and may be legally required.
- **[INFO]** No terms of service link detected
- **[INFO]** No cookie consent banner detected
- **[INFO]** This is an automated check, not legal advice — BeaverCheck detects technical indicators of consent management. This does not constitute a legal compliance assessment. Consult a privacy professional for GDPR/CCPA compliance.

### Language & i18n (A — 90/100)

*Lang attribute present*

- **[PASS]** <html lang> attribute is present
- **[PASS]** <html lang> value is valid
- **[INFO]** No Content-Language HTTP header
- **[INFO]** Language signals are inconsistent — The <html lang> attribute and Content-Language header should agree.

### Readability & Typography (A+ — 100/100)

*Font sizes and tap targets checked*


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

*Viewport properly configured*

- **[PASS]** Viewport meta tag is present
- **[PASS]** width=device-width is set
- **[PASS]** User zooming is allowed

### Third-Party Trackers (C — 55/100)

*4 trackers detected*

- **[INFO]** 4 third-party trackers detected — Found 3 analytics, 0 advertising, 0 marketing, 1 tag manager trackers.
- **[WARNING]** Trackers detected but no cookie policy found — This page loads 4 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 · 4 trackers · 0 pre-consent*

- **[INFO]** 4 third-party tracker(s) detected on page

---

## Legal

### Legal Page Ecosystem (F — 30/100)

*1 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.
- **[PASS]** Terms of Service detected — Found at https://www.babbel.com/legal/accessibility, linked from footer.
- **[INFO]** Cookie Policy not detected — No link matching common Cookie Policy URL patterns or link text was found. Most websites are expected to have a Cookie Policy, especially those collecting user data.
- **[INFO]** Accessibility Statement not detected — No link matching common Accessibility Statement URL patterns or link text was found. Most websites are expected to have a Accessibility Statement, especially those collecting user data.
- **[INFO]** DMCA / Copyright Notice not detected — No link matching common DMCA / Copyright Notice URL patterns or link text was found. Most websites are expected to have a DMCA / Copyright Notice, especially those collecting user data.
- **[INFO]** Refund / Returns Policy not detected — No link matching common Refund / Returns Policy URL patterns or link text was found. Most websites are expected to have a Refund / Returns Policy, especially those collecting user data.
- **[INFO]** Acceptable Use Policy not detected — No link matching common Acceptable Use Policy URL patterns or link text was found. Most websites are expected to have a Acceptable Use Policy, especially those collecting user data.

### Copyright Notice (A+ — 100/100)

*© 2026 Babbel GmbH · Imprint · Terms & Conditions · Priv…*

- **[PASS]** Copyright notice is up to date — Copyright notice is up to date: © 2026 Babbel GmbH · Imprint · Terms & Conditions · Priva
- **[PASS]** Copyright holder: Babbel GmbH · Imprint · Terms & Conditions · Priva

### Regulatory Indicators

*3 regulatory indicator(s) detected*

- **[INFO]** This is a technical scan, not a legal assessment — BeaverCheck detects technical indicators that may suggest regulatory relevance. This is not a compliance audit and should not be relied upon for legal decisions. Consult qualified legal counsel for compliance assessments.
- **[INFO]** GDPR indicators detected (strong confidence) — Indicators suggesting GDPR may be relevant: Consent management platform detected: cookielaw.org; Privacy policy page found. EU General Data Protection Regulation — governs collection and processing of personal data of EU residents.
- **[INFO]** CCPA indicators detected (strong confidence) — Indicators suggesting CCPA may be relevant: Text mentions: do not sell; Link URL pattern: https://www.babbel.com/legal/do-not-sell-my-info; Link text: Do Not Sell or Share My Personal Information opens in a new window. California Consumer Privacy Act — gives California residents rights over their personal data.
- **[INFO]** ADA indicators detected (moderate confidence) — Indicators suggesting ADA may be relevant: Accessibility statement page found. Americans with Disabilities Act / Section 508 — requires digital accessibility for people with disabilities.

### Third-Party Data Sharing

*1 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]** 1 third-party services across 1 categories — 1 third-party services detected across 1 categories: Tag Management (1). Each of these services receives some user data from your site visitors.
- **[INFO]** Google Tag Manager (Tag Management) — Detected via script URL. Typically collects: Orchestrates other tracking scripts, Page views. Privacy policy: https://policies.google.com/privacy. Data Processing Agreement available.

### Compliance Badges (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)

*AWS CloudFront (FunctionGeneratedResponse from cloudfront)*

- **[PASS]** Site is served via AWS CloudFront CDN (edge: CDG54-P2)
- **[INFO]** CDN cache status: FunctionGeneratedResponse from cloudfront

### HTTP Caching (F — 30/100)

*No cache headers*

- **[WARNING]** No Cache-Control header found — Browsers will use heuristic caching, which can be unpredictable. Set explicit cache headers.

### Transport Security (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 — 90/100)

*20 landmarks*

- **[PASS]** <main> landmark present
- **[PASS]** 3 <nav> landmark(s) found
- **[WARNING]** 1 of 3 <nav> elements are unlabeled — Multiple navigations need aria-label to distinguish them for screen readers.
- **[PASS]** Skip navigation link present

### Heading Hierarchy (A+ — 100/100)

*23 headings*

- **[PASS]** Single H1 present

### Alt Text Quality (A+ — 100/100)

*All 10 images OK*

- **[PASS]** 6 decorative image(s) correctly marked
- **[PASS]** 4 image(s) with good alt text

### Form Accessibility (A+ — 100/100)

*No form controls*

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

### Link & Button Quality (B — 73/100)

*3 issue(s) across 79 links and 12 buttons*

- **[WARNING]** 3 link(s) with generic text — Generic link text like 'click here' doesn't describe the destination.
- **[WARNING]** 8 link(s) open in new tab without warning — Add '(opens in new tab)' to link text or aria-label.
- **[PASS]** 68 link(s) with descriptive text

---

## UX

### 404 Error Page (B — 75/100)

*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 (B — 80/100)

*4 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 (D — 40/100)

*Not found*

- **[INFO]** No web manifest found — No manifest at standard paths (/manifest.json, /site.webmanifest). A manifest is optional but enables PWA features like home screen installation and standalone display.

### Dark Mode Support (D — 40/100)

*No dark mode signals*

- **[INFO]** No dark mode signals detected — Consider adding CSS with @media (prefers-color-scheme: dark) and <meta name='color-scheme' content='light dark'>.
- **[INFO]** Detection limited to meta tags and inline styles — External CSS files may contain prefers-color-scheme rules not visible to this scan.

### Print Stylesheet (D — 40/100)

*No print styles*

- **[INFO]** No print-specific styles detected — When users print this page, they get the screen layout including navigation and non-essential elements. Add @media print rules to hide navigation and optimize layout for paper.

### Navigation UX (F — 35/100)

*1 navigation pattern(s)*

- **[PASS]** Skip navigation link detected
- **[PASS]** 3 navigation landmark(s) detected
- **[PASS]** Hamburger menu detected (responsive design)

---

## SEO

### Canonical URL (A+ — 95/100)

*Properly configured*

- **[PASS]** Canonical tag present
- **[PASS]** Canonical is self-referencing
- **[PASS]** Canonical matches final URL after redirects
- **[PASS]** Canonical target returns 200
- **[INFO]** Canonical points to a different domain

### Meta Tags (A+ — 100/100)

*Title optimized*

- **[PASS]** Page title is set
- **[PASS]** Title length (51 chars) is optimal
- **[PASS]** Title and H1 are well-aligned

### Content Depth (C — 65/100)

*866 words, Fairly Difficult*

- **[PASS]** Page has 866 words of content
- **[INFO]** Text-to-HTML ratio is 4% — Very low ratio suggests heavy framework overhead or boilerplate.
- **[INFO]** Reading level: Fairly Difficult (grade 10)

### Internal Links (A+ — 100/100)

*2 internal, 77 external*

- **[PASS]** 2 internal links (3%)
- **[PASS]** 96% of links use descriptive anchor text
- **[INFO]** 2 internal / 77 external links

### Image SEO (B — 80/100)

*10 images, 3 descriptive filenames*

- **[WARNING]** 70% 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*


---

## Sustainability

### CO2 Per Page Load (B — 70/100)

*0.63g CO2 per view*

- **[INFO]** 0.63g CO2 per page view — This page transfers 2.2 MB, producing an estimated 0.63g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.12g, network 0.11g, end-user device 0.40g.
- **[INFO]** At 10,000 monthly views: 75.6 kg CO2/year — With 10,000 page views per month, this page would generate approximately 75.6 kg of CO2 annually — equivalent to charging 9446 smartphones.

### Green Hosting (D — 40/100)

*Not green*

- **[INFO]** No confirmed renewable energy commitment detected — Consider providers like Cloudflare, Google Cloud, or Vercel that match 100% of their energy use with renewables.
- **[INFO]** AWS: Renewable energy varies by region; committed to 100% by 2025
- **[INFO]** AWS CloudFront: Renewable varies by edge location
- **[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 29 KB (vs 2277 KB first visit). 56 of 57 resources are served from browser cache, saving 0.62g CO2 per repeat visit.
- **[INFO]** Repeat visit: 0.01g CO2 (first visit: 0.63g)

### Carbon Budget (B — 70/100)

*50th percentile*

- **[WARNING]** 0.63g CO2 — above the median website (0.60g) — Heavier than an estimated 50% of websites. Reducing page weight, optimizing images, and removing unused JavaScript would lower the carbon footprint. See the Performance tab.
- **[INFO]** Estimated 50th percentile — Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.

### Transfer Efficiency (A+ — 100/100)

*100% efficient*

- **[PASS]** Transfer efficiency: 100% — Only 0 KB of potential savings identified. Your page is well-optimized for size.

---

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*Generated by [BeaverCheck](https://beavercheck.com) — https://beavercheck.com/results/7c743242-f06f-4be7-90c1-2cc96c2420a1*