# BeaverCheck Audit Report — https://tagesschau.de

**Date:** April 15, 2026  
**URL:** https://tagesschau.de  
**Overall Grade:** C (76/100)  
**Report:** https://beavercheck.com/results/3e170bc5-783f-4b78-9fb2-4e428a51b9d6

## 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. **[CRITICAL]** 27 button(s) with no accessible text — Accessibility > Link & Button Quality
5. **[WARNING]**  is missing width/height — may cause layout shift — Performance > Image Optimization

---

## Lighthouse Scores

| Category | Score |
|----------|-------|
| Performance | 57 |
| Accessibility | 83 |
| Best Practices | 77 |
| 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 not present

### 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 45 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 4 external resources have SRI*

- **[WARNING]** External script from www.gstatic.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from www.gstatic.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from player.h-cdn.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from www.gstatic.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 (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 (C — 60/100)

*1.9 MB transferred, 68 requests*

- **[INFO]** Page weighs 6.7 MB (1.9 MB transferred)
- **[WARNING]** JavaScript is 974 KB — consider code splitting or lazy loading — Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
- **[INFO]** Fonts are 477 KB — consider subsetting or using system fonts — Subset fonts to include only used characters, or switch to system font stacks.
- **[INFO]** 68 HTTP requests
- **[INFO]** Estimated 0.39 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 (1.9 MiB of 1.9 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)

*17 images, 0 KB saveable*

- **[WARNING]** https://images.tagesschau.de/image/9a300bab-f924-4... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://images.tagesschau.de/image/b24e1af8-b729-4... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]**  is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://images.tagesschau.de/image/500bafa6-a89b-4... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://images.tagesschau.de/image/ad903341-f090-4... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://images.tagesschau.de/image/35510126-b002-4... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.

### JS Execution Cost (F — 20/100)

*5155ms total JS execution*

- **[WARNING]** https://www.tagesschau.de/resources/assets/modern-...: 1988ms CPU time
- **[WARNING]** https://www.tagesschau.de/: 1024ms CPU time
- **[WARNING]** https://player.h-cdn.com/loader.js?customer=ard_de...: 802ms CPU time
- **[WARNING]** Unattributable: 779ms CPU time
- **[WARNING]** https://www.tagesschau.de/resources/assets/9860-04...: 363ms CPU time
- **[WARNING]** Third-party scripts: 5155ms (100% of total)

### Font Loading (A+ — 100/100)

*6 fonts (477 KB)*

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

### JS Bundles (D — 40/100)

*32 scripts, 434 KB unused*

- **[WARNING]** https://player.h-cdn.com/loader.js?customer=ard_de...: 169 KB unused (70%) — Consider code splitting or tree shaking to reduce unused code.
- **[WARNING]** https://www.tagesschau.de/resources/assets/9860-04...: 156 KB unused (61%) — Consider code splitting or tree shaking to reduce unused code.
- **[WARNING]** https://www.tagesschau.de/resources/assets/modern-...: 86 KB unused (49%) — Consider code splitting or tree shaking to reduce unused code.
- **[WARNING]** https://www.tagesschau.de/resources/assets/8354-f0...: 22 KB unused (80%) — Consider code splitting or tree shaking to reduce unused code.
- **[INFO]** Total unused JavaScript: 434 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)

*26 hints, 0 missing preconnects*

- **[PASS]** Page uses 26 resource hint(s)

### Page Weight Inventory (F — 35/100)

*68 resources · 1.9 MB · 434 KB savings available*

- **[WARNING]** Page weight 900 KB over 1MB target
- **[INFO]** ~434 KB of savings available
- **[WARNING]** 67 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 (B — 85/100)

*200 links checked, 197 healthy, 3 broken*

- **[WARNING]** 197 of 200 links are healthy
- **[WARNING]** Broken link: https://player.h-cdn.com — Found in <link href>. Returns HTTP 404.
- **[WARNING]** Broken link: https://perr.h-cdn.com — Found in <link href>. Returns HTTP 404.
- **[WARNING]** Broken link: https://zagent30.h-cdn.com — Found in <link href>. Get "https://zagent30.h-cdn.com": context deadline exceeded

### Mixed Content (A+ — 100/100)

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

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

### Open Graph (A — 90/100)

*Open Graph tags are well configured for social sharing.*

- **[CRITICAL]** og:image is not reachable — The og:image URL could not be fetched. Social platforms won't be able to display it.
- **[INFO]** og:title is long (65 characters) — Titles over 60 characters may be truncated in social sharing previews.

### Structured Data (A+ — 100/100)

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

- **[PASS]** Custom type "collectionPage" — unable to validate specific properties
- **[PASS]** 2 JSON-LD blocks found

---

## Infrastructure

### DNS Records (A+ — 95/100)

*1 A records, 35 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.
- **[PASS]** Has 1 IPv6 (AAAA) record(s)
- **[PASS]** 4 nameserver(s) configured
- **[PASS]** 1 mail exchanger(s) configured
- **[INFO]** CAA records not checked — CAA record lookup requires a specialized DNS resolver. This check will be available in a future update.
- **[PASS]** SPF record present in TXT
- **[PASS]** DNS resolution time: 35 ms

### Redirect Chain (A — 90/100)

*1 redirect(s), 122 ms total*

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

### IPv6 Readiness (A+ — 100/100)

*IPv6 reachable (17 ms)*

- **[PASS]** IPv6 is configured and reachable at 2600:1901:0:1b60::

### Crawlability (B — 80/100)

*robots.txt present, no sitemap*

- **[PASS]** robots.txt is present
- **[INFO]** No sitemap.xml found — A sitemap helps search engines discover and index your pages more efficiently.
- **[INFO]** robots.txt does not reference a sitemap — Add a 'Sitemap:' directive to robots.txt so search engines can discover your sitemap.

### URL Variants (C — 65/100)

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

- **[CRITICAL]** Both www and non-www versions serve content
- **[WARNING]** HTTP→HTTPS redirect uses 302 instead of 301

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

*tagesschau.de*

- **[WARNING]** Registrar lock is NOT enabled — The domain can be transferred without an unlock step. Enable registrar lock (clientTransferProhibited) in your registrar's control panel to protect against unauthorized or accidental transfers.

---

## Compliance

### WCAG Compliance (A+ — 100/100)

*No testable criteria*


### Cookie Consent & Privacy (A+ — 95/100)

*privacy policy found*

- **[PASS]** Privacy policy link found
- **[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 (A+ — 95/100)

*2 trackers detected*

- **[INFO]** 2 third-party trackers detected — Found 2 analytics, 0 advertising, 0 marketing, 0 tag manager trackers.

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

*0 cookies · 2 trackers · 0 pre-consent*

- **[INFO]** 2 third-party tracker(s) detected on page

---

## Legal

### Legal Page Ecosystem (F — 30/100)

*1 of 7 expected legal pages detected*

- **[PASS]** Privacy Policy detected — Found at /datenschutz.
- **[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 (strong confidence) — Indicators suggesting GDPR may be relevant: European TLD detected: .de; Privacy policy page found. EU General Data Protection Regulation — governs collection and processing of personal data of EU residents.

### Third-Party Data Sharing

*0 third-party service(s) detected*

- **[INFO]** Data inventory for transparency purposes — This inventory identifies third-party services that receive data from your site visitors. Under regulations like GDPR (Article 30), maintaining records of data processing activities is commonly considered a best practice. This automated scan provides a starting point — it may not capture all data flows.
- **[INFO]** No recognized third-party data-sharing services detected — This page does not appear to load external tracking, analytics, or advertising scripts.

### Compliance Badges (C — 55/100)

*0 compliance badge(s) detected*

- **[INFO]** No compliance badges detected — No recognized compliance certification badges or seals were found. This is common — many sites do not display compliance badges.

---

## Availability

### CDN & Delivery (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 — 70/100)

*private*

- **[PASS]** Cache-Control header is set
- **[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 (B — 75/100)

*9 landmarks*

- **[PASS]** <main> landmark present
- **[PASS]** 6 <nav> landmark(s) found
- **[WARNING]** 2 of 6 <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.

### Heading Hierarchy (A+ — 100/100)

*104 headings*

- **[PASS]** Single H1 present

### Alt Text Quality (A — 90/100)

*All 85 images OK*

- **[INFO]** 5 image(s) with alt text over 125 characters
- **[PASS]** 80 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 — 80/100)

*27 issue(s) across 290 links and 138 buttons*

- **[CRITICAL]** 27 button(s) with no accessible text — Icon-only buttons need an aria-label so screen readers can announce them.
- **[PASS]** 290 link(s) with descriptive text

---

## UX

### 404 Error Page (B — 80/100)

*HTTP 404, custom page*

- **[PASS]** Correct 404 status code returned
- **[PASS]** Custom styled 404 page
- **[PASS]** Navigation links present on 404 page
- **[PASS]** Homepage link present on 404 page

### Favicon & Branding (B — 80/100)

*14 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 (B — 70/100)

*Dark mode detected*

- **[PASS]** prefers-color-scheme CSS detected in inline styles
- **[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]** 6 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 (A — 85/100)

*Minor issues*

- **[PASS]** Canonical tag present
- **[WARNING]** Canonical does not match final URL (https://www.tagesschau.de:443/)
- **[PASS]** Canonical target returns 200
- **[INFO]** Canonical points to a different domain

### Meta Tags (A — 85/100)

*Title: 12 chars*

- **[PASS]** Page title is set
- **[WARNING]** Title is only 12 characters — consider expanding
- **[INFO]** Title and H1 have very different wording — Alignment helps users confirm they've reached the right page.

### Content Depth (A — 85/100)

*3120 words, Very Difficult*

- **[PASS]** Page has 3120 words — good depth for search engines
- **[INFO]** Text-to-HTML ratio is 1% — Very low ratio suggests heavy framework overhead or boilerplate.
- **[INFO]** Reading level: Very Difficult (grade 15)

### Internal Links (A+ — 95/100)

*243 internal, 47 external*

- **[PASS]** 243 internal links (84%)
- **[PASS]** 100% of links use descriptive anchor text
- **[INFO]** Page has 290 links — consider reducing
- **[INFO]** 243 internal / 47 external links

### Image SEO (A+ — 100/100)

*85 images, 85 descriptive filenames*

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

### Hreflang

*0 hreflang tags*


---

## Sustainability

### CO2 Per Page Load (A — 85/100)

*0.44g CO2 per view*

- **[PASS]** 0.44g CO2 per page view — This page transfers 1.9 MB, producing an estimated 0.44g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.01g, network 0.09g, end-user device 0.34g.
- **[INFO]** At 10,000 monthly views: 53.4 kg CO2/year — With 10,000 page views per month, this page would generate approximately 53.4 kg of CO2 annually — equivalent to charging 6672 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]** 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)

*93% cached*

- **[PASS]** 93% reduction on repeat visits — Returning visitors download only 128 KB (vs 1924 KB first visit). 66 of 68 resources are served from browser cache, saving 0.42g CO2 per repeat visit.
- **[INFO]** Repeat visit: 0.03g CO2 (first visit: 0.44g)

### Carbon Budget (B — 70/100)

*34th percentile*

- **[PASS]** 0.44g CO2 — below the sustainability target of 0.50g — Cleaner than an estimated 66% of websites analyzed. This page meets the Web Sustainability Guidelines target.
- **[INFO]** Estimated 34th percentile — Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.

### Transfer Efficiency (B — 80/100)

*77% efficient*

- **[INFO]** Transfer efficiency: 77% — An estimated 434 KB (23%) could be eliminated: 0 KB via better compression, 0 KB via modern image formats, 434 KB of unused JavaScript. This wasted data produces 0.10g of unnecessary CO2 per page view.

---

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*Generated by [BeaverCheck](https://beavercheck.com) — https://beavercheck.com/results/3e170bc5-783f-4b78-9fb2-4e428a51b9d6*
