# BeaverCheck Audit Report — https://tuv.com
**Date:** April 22, 2026
**URL:** https://tuv.com
**Overall Grade:** D (67/100)
**Report:** https://beavercheck.com/results/f4bb713e-bd45-4c7a-a733-f6307b5b2dc7
## 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]** Page weighs 10.2 MB (7.3 MB transferred) — Performance > Page Weight Budget
5. **[CRITICAL]** 1 button(s) with no accessible text — Accessibility > Link & Button Quality
---
## Lighthouse Scores
| Category | Score |
|----------|-------|
| Performance | 34 |
| Accessibility | 70 |
| Best Practices | 96 |
| 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 58 days)
- **[PASS]** Certificate chain has 2 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 5 external resources have SRI*
- **[WARNING]** External script from consent.cookiebot.eu lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from consentcdn.cookiebot.eu lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from consent.cookiebot.eu 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.lightboxcdn.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+ — 100/100)
*DMARC: reject*
- **[PASS]** DMARC policy is reject — strongest 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 (F — 0/100)
*7.3 MB transferred, 67 requests*
- **[CRITICAL]** Page weighs 10.2 MB (7.3 MB transferred)
- **[WARNING]** Images are 6.2 MB — compress or use modern formats — Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
- **[WARNING]** JavaScript is 624 KB — consider code splitting or lazy loading — Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
- **[INFO]** Fonts are 250 KB — consider subsetting or using system fonts — Subset fonts to include only used characters, or switch to system font stacks.
- **[INFO]** 67 HTTP requests
- **[INFO]** Estimated 1.5 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 (7.3 MiB of 7.3 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 — 70/100)
*37 images, 0 KB saveable*
- **[WARNING]** is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
### JS Execution Cost (F — 20/100)
*5793ms total JS execution*
- **[WARNING]** https://www.tuv.com/system-media-files/js/scripts....: 1853ms CPU time
- **[WARNING]** https://consent.cookiebot.eu/93626a84-94d4-4a5f-8a...: 1186ms CPU time
- **[WARNING]** https://consent.cookiebot.eu/uc.js: 1164ms CPU time
- **[WARNING]** https://www.tuv.com/taiwan/tw/: 917ms CPU time
- **[WARNING]** Unattributable: 673ms CPU time
- **[WARNING]** Third-party scripts: 5793ms (100% of total)
### Font Loading (A+ — 100/100)
*7 fonts (250 KB)*
- **[INFO]** 7 font(s) use font-display: swap (FOUT risk but functional)
### JS Bundles (D — 40/100)
*9 scripts, 349 KB unused*
- **[WARNING]** https://www.tuv.com/system-media-files/js/scripts....: 349 KB unused (69%) — Consider code splitting or tree shaking to reduce unused code.
- **[INFO]** Total unused JavaScript: 349 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)
*4 hints, 0 missing preconnects*
- **[PASS]** Page uses 4 resource hint(s)
### Page Weight Inventory (D — 40/100)
*67 resources · 7.3 MB · 349 KB savings available*
- **[WARNING]** Page weight 6.3 MB over 1MB target
- **[INFO]** ~349 KB of savings available
- **[WARNING]** 66 third-party resources (100% of weight)
- **[INFO]** 6 resources over 200KB
### Render-Blocking Resources (A+ — 100/100)
*No render-blocking resources detected*
- **[PASS]** No render-blocking resources detected in
### Third-Party Resources (A+ — 100/100)
*No third-party resources detected*
---
## Content Quality
### Links (F — 36/100)
*200 links checked, 177 healthy, 21 broken*
- **[CRITICAL]** 177 of 200 links are healthy
- **[WARNING]** Broken link: https://tuv.com/system-media-files/css/additional_cn_styl... — Found in . Returns HTTP 403.
- **[INFO]** Long redirect chain: https://tuv.com/index.html (4 hops)
- **[INFO]** Long redirect chain: https://tuv.com/tw/taiwan/about_us_tw/press_4/p... (4 hops)
- **[CRITICAL]** Broken link: https://tuv.com/%E5%8A%9F%E8%83%BD%E5%AE%89%E5%85%A8%E6%8... — Found in . Returns HTTP 404.
- **[CRITICAL]** Broken link: https://tuv.com/%E8%BB%8A%E8%BC%9B%E6%AA%A2%E9%A9%97-2.html — Found in . Returns HTTP 404.
- **[CRITICAL]** Broken link: https://tuv.com/%E8%BB%8A%E8%BC%9B%E8%A9%95%E4%BC%B0%E5%9... — Found in . Returns HTTP 404.
- **[CRITICAL]** Broken link: https://tuv.com/%E8%A9%95%E4%BC%B0%E6%9C%8D%E5%8B%99.html — Found in . Returns HTTP 404.
- **[CRITICAL]** Broken link: https://tuv.com/%E6%AD%90%E7%9B%9Freach%E6%B3%95%E8%A6%8F... — Found in . Returns HTTP 404.
- **[CRITICAL]** Broken link: https://tuv.com/%E4%B8%AD%E6%9D%B1%E9%A9%97%E8%AD%89.html — Found in . Returns HTTP 404.
- **[CRITICAL]** Broken link: https://tuv.com/%E8%AE%8A%E5%A3%93%E5%99%A8.html — Found in . Returns HTTP 404.
- **[CRITICAL]** Broken link: https://tuv.com/%E9%9B%BB%E7%B7%9A%E9%9B%BB%E7%BA%9C.html — Found in . Returns HTTP 404.
- **[CRITICAL]** Broken link: https://tuv.com/%E7%84%8A%E6%8E%A5%E6%8A%80%E8%A1%93.html — Found in . Returns HTTP 404.
- **[CRITICAL]** Broken link: https://tuv.com/%E9%87%91%E5%B1%AC%E6%9D%90%E6%96%99%E6%B... — Found in . Returns HTTP 404.
- **[CRITICAL]** Broken link: https://tuv.com/%E6%AD%90%E6%B4%B2%E5%A3%93%E5%8A%9B%E5%A... — Found in . Returns HTTP 404.
- **[CRITICAL]** Broken link: https://tuv.com/%E9%98%B2%E7%88%86%E8%AA%8D%E8%AD%89.html — Found in . Returns HTTP 404.
- **[CRITICAL]** Broken link: https://tuv.com/%E4%BC%81%E6%A5%AD%E8%81%B7%E6%A5%AD%E5%9... — Found in . Returns HTTP 404.
- **[CRITICAL]** Broken link: https://tuv.com/%E4%BA%BA%E5%93%A1%E8%B3%87%E6%A0%BC%E8%A... — Found in . Returns HTTP 404.
- **[CRITICAL]** Broken link: https://tuv.com/iso-9001%E9%A9%97%E8%AD%89.html — Found in . Returns HTTP 404.
- **[CRITICAL]** Broken link: https://tuv.com/bsci-%E5%AF%A9%E6%A0%B8.html — Found in . Returns HTTP 404.
- **[CRITICAL]** Broken link: https://tuv.com/iso-14001-%E8%AE%A4%E8%AF%81.html — Found in . Returns HTTP 404.
- **[CRITICAL]** Broken link: https://tuv.com/fsc-fm-coc.html — Found in . Returns HTTP 404.
- **[CRITICAL]** Broken link: https://tuv.com/location-finder/index.jsp — Found in . Returns HTTP 404.
- **[CRITICAL]** Broken link: https://event.gc.tuv.com/index.php?r=site%2Findex&languag... — Found in . Get "https://event.gc.tuv.com/index.php?r=site%2Findex&language=zh-TW": 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 (D — 65/100)
*Open Graph tags need attention — social sharing previews may be incomplete.*
- **[CRITICAL]** og:image is not reachable — The og:image URL could not be fetched. Social platforms won't be able to display it.
- **[WARNING]** Missing og:title — The og:title tag controls the title shown in social sharing previews.
- **[INFO]** og:description is short (13 characters) — Ideal length is 55–200 characters for social sharing previews.
- **[INFO]** Missing og:url — The og:url tag specifies the canonical URL for the shared content.
- **[INFO]** Missing og:site_name — The og:site_name tag displays the website name in social previews.
### 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, 322 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]** 2 nameserver(s) configured
- **[PASS]** 2 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
- **[WARNING]** DNS resolution is slow (322 ms) — Slow DNS adds latency to every page load. Consider a faster DNS provider.
### Redirect Chain (F — 30/100)
*3 redirect(s), 1243 ms total*
- **[WARNING]** 3 redirects before reaching final URL — Each redirect adds latency. Try to minimize the chain to 1 hop.
- **[INFO]** WWW normalization redirect
- **[INFO]** Uses 302 (temporary) redirect — If permanent, use 301 instead.
- **[WARNING]** Redirect overhead: 1243 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 (A+ — 100/100)
*robots.txt present, sitemap with 125 URLs*
- **[PASS]** robots.txt is present
- **[PASS]** sitemap.xml is present
- **[PASS]** sitemap.xml is valid XML
- **[PASS]** sitemap.xml contains 125 entries
- **[PASS]** robots.txt references sitemap
### URL Variants (A — 90/100)
*www/non-www, trailing slash, HTTP→HTTPS*
- **[PASS]** www/non-www redirect configured correctly (preferred: non-www)
- **[WARNING]** HTTP→HTTPS redirect uses 302 instead of 301
### Domain Intelligence (B — 70/100)
*tuv.com — via InterNetX GmbH, 32 years, 4 months old, hosted on TUEV_RHEINLAND_AS AM GRAUEN STEIN, DE*
- **[CRITICAL]** Domain expires in 28 days — This domain expires on May 21, 2026. Domains that expire accidentally cause complete website downtime. Enable auto-renewal or renew manually now.
- **[PASS]** DNSSEC is enabled
- **[PASS]** Registrar: InterNetX GmbH
- **[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: TUEV_RHEINLAND_AS AM GRAUEN STEIN, DE
---
## Compliance
### WCAG Compliance (A+ — 100/100)
*No testable criteria*
### Cookie Consent & Privacy (B — 80/100)
*CookieBot 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
- **[PASS]** Consent banner detected (CookieBot)
- **[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]** attribute is present
- **[PASS]** value is valid
- **[INFO]** No Content-Language HTTP header
- **[INFO]** Language signals are inconsistent — The attribute and Content-Language header should agree.
### Readability & Typography (A+ — 100/100)
*Font sizes and tap targets checked*
### Viewport Configuration (C — 60/100)
*Viewport prevents zooming*
- **[PASS]** Viewport meta tag is present
- **[PASS]** width=device-width is set
- **[CRITICAL]** Viewport prevents user zooming — user-scalable=no or maximum-scale < 2 prevents users from zooming. This is a WCAG 1.4.4 (Level AA) failure and an accessibility barrier for users with low vision.
### Third-Party Trackers (D — 40/100)
*7 trackers detected*
- **[INFO]** 7 third-party trackers detected — Found 4 analytics, 1 advertising, 1 marketing, 1 tag manager trackers.
- **[WARNING]** 1 advertising/retargeting trackers detected — Advertising trackers collect user data for ad targeting. Under GDPR, these typically require explicit consent.
- **[WARNING]** Trackers detected but no cookie policy found — This page loads 7 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 · 7 trackers · 0 pre-consent*
- **[INFO]** 7 third-party tracker(s) detected on page
---
## 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: .eu. 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
*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: Analytics (1). 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.
### 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 (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 (D — 50/100)
*2 landmarks*
- **[CRITICAL]** No landmark found — Screen reader users cannot quickly navigate to the primary content. Wrap your main content in .
- **[WARNING]** No