# BeaverCheck Audit Report — https://rdcu.be

**Date:** April 22, 2026  
**URL:** https://rdcu.be  
**Overall Grade:** C (71/100)  
**Report:** https://beavercheck.com/results/5f41bc22-d2ac-4aa0-8af1-6f9810506c6d

## 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 8.9 MB (6.2 MB transferred) — Performance > Page Weight Budget
5. **[CRITICAL]** 14 image(s) missing alt attribute — Accessibility > Alt Text Quality

---

## Lighthouse Scores

| Category | Score |
|----------|-------|
| Performance | 37 |
| Accessibility | 82 |
| Best Practices | 77 |
| SEO | 62 |

---

## Security

### Security Headers (F — 30/100)

*4 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.
- **[PASS]** X-Content-Type-Options is properly configured
- **[PASS]** X-Frame-Options is properly configured
- **[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 311 days)
- **[PASS]** Certificate chain has 3 certificates
- **[PASS]** Certificate uses modern signature algorithm
- **[PASS]** Certificate covers 2 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 10 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 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 link from fonts.googleapis.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 cdn.cookielaw.org lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from assets.adobedtm.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from unpkg.co lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from unpkg.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*

- **[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 (B — 80/100)

*No CORS headers*

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

---

## Performance

### Page Weight Budget (F — 0/100)

*6.2 MB transferred, 116 requests*

- **[CRITICAL]** Page weighs 8.9 MB (6.2 MB transferred)
- **[WARNING]** Images are 4.7 MB — compress or use modern formats — Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
- **[WARNING]** JavaScript is 832 KB — consider code splitting or lazy loading — Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
- **[INFO]** Fonts are 485 KB — consider subsetting or using system fonts — Subset fonts to include only used characters, or switch to system font stacks.
- **[INFO]** CSS is 210 KB — consider purging unused styles — Remove unused CSS rules with tools like PurgeCSS to reduce stylesheet size.
- **[WARNING]** 116 HTTP requests — consider bundling or reducing — Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.
- **[INFO]** Estimated 1.3 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 (6.2 MiB of 6.2 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)

*26 images, 0 KB saveable*

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

### JS Execution Cost (F — 20/100)

*7719ms total JS execution*

- **[WARNING]** https://www.readcube.com/: 1782ms CPU time
- **[WARNING]** Unattributable: 1037ms CPU time
- **[WARNING]** https://www.googletagmanager.com/gtm.js?id=GTM-MCT...: 763ms CPU time
- **[WARNING]** https://unpkg.com/gsap@3/dist/ScrollTrigger.min.js: 661ms CPU time
- **[WARNING]** https://unpkg.co/gsap@3/dist/gsap.min.js: 636ms CPU time
- **[WARNING]** Third-party scripts: 7719ms (100% of total)

### Font Loading (A+ — 100/100)

*9 fonts (485 KB)*

- **[INFO]** 9 font(s) use font-display: swap (FOUT risk but functional)

### JS Bundles (C — 60/100)

*36 scripts, 196 KB unused*

- **[WARNING]** https://www.googletagmanager.com/gtag/js?id=G-FMT5...: 69 KB unused (40%) — Consider code splitting or tree shaking to reduce unused code.
- **[WARNING]** https://www.googletagmanager.com/gtag/js?id=AW-100...: 64 KB unused (44%) — Consider code splitting or tree shaking to reduce unused code.
- **[WARNING]** https://www.googletagmanager.com/gtm.js?id=GTM-MCT...: 63 KB unused (41%) — Consider code splitting or tree shaking to reduce unused code.
- **[INFO]** Total unused JavaScript: 196 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)

*5 hints, 0 missing preconnects*

- **[PASS]** Page uses 5 resource hint(s)

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

*116 resources · 6.2 MB · 196 KB savings available*

- **[WARNING]** Page weight 5.2 MB over 1MB target
- **[INFO]** ~196 KB of savings available
- **[WARNING]** 115 third-party resources (100% of weight)
- **[INFO]** 8 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 (F — 40/100)

*145 links checked, 27 healthy, 118 broken*

- **[CRITICAL]** 27 of 145 links are healthy
- **[WARNING]** Broken link: https://fonts.googleapis.com — Found in <link href>. Returns HTTP 404.
- **[WARNING]** Broken link: https://fonts.gstatic.com — Found in <link href>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/en/feed/ — Found in <link href>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/en/comments/feed/ — Found in <link href>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/en/events/?ical=1 — Found in <link href>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/en/wp-json/oembed/1.0/embed?url=https%3A%... — Found in <link href>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/en/wp-json/oembed/1.0/embed?url=https%3A%... — Found in <link href>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/wp-content/plugins/bb-plugin/fonts/fontaw... — Found in <link href>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/wp-content/plugins/bb-plugin/fonts/fontaw... — Found in <link href>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/wp-content/plugins/bb-plugin/fonts/fontaw... — Found in <link href>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/wp-includes/css/dashicons.min.css?ver=6.9.4 — Found in <link href>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/wp-content/plugins/the-events-calendar/co... — Found in <link href>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/wp-content/plugins/the-events-calendar/co... — Found in <link href>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/wp-content/plugins/the-events-calendar/co... — Found in <link href>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/wp-content/plugins/the-events-calendar/co... — Found in <link href>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/wp-content/plugins/event-tickets/build/cs... — Found in <link href>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/wp-content/plugins/event-tickets/build/cs... — Found in <link href>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/wp-includes/css/dist/block-library/style.... — Found in <link href>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/wp-content/plugins/bbpowerpack/assets/css... — Found in <link href>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/wp-content/plugins/bbpowerpack/assets/css... — Found in <link href>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/wp-content/uploads/bb-plugin/cache/12-lay... — Found in <link href>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/wp-content/plugins/translatepress-multili... — Found in <link href>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/wp-content/plugins/bb-plugin/fonts/fontaw... — Found in <link href>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/wp-content/plugins/bb-plugin/css/jquery.m... — Found in <link href>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/wp-content/uploads/bb-plugin/cache/df30b3... — Found in <link href>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/wp-content/uploads/maxmegamenu/style.css?... — Found in <link href>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/wp-content/plugins/megamenu-pro/icons/gen... — Found in <link href>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/wp-content/plugins/megamenu-pro/icons/fon... — Found in <link href>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/wp-content/plugins/event-tickets/build/cs... — Found in <link href>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/wp-content/themes/bb-theme/css/base-4.min... — Found in <link href>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/wp-content/uploads/bb-theme/skin-69de2228... — Found in <link href>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/wp-content/themes/bb-theme-child/style.cs... — Found in <link href>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/wp-content/plugins/bbpowerpack/assets/css... — Found in <link href>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/wp-includes/js/jquery/jquery.min.js?ver=3... — Found in <script src>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/wp-includes/js/jquery/jquery-migrate.min.... — Found in <script src>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/en/wp-json/ — Found in <link href>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/en/wp-json/wp/v2/pages/12 — Found in <link href>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/en/wp-json/tribe/events/v1/ — Found in <link href>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/en/wp-json/tribe/tickets/v1/ — Found in <link href>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/wp-content/uploads/2018/11/cropped-readuc... — Found in <link href>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/wp-content/uploads/2018/11/cropped-readuc... — Found in <link href>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/wp-content/uploads/2018/11/cropped-readuc... — Found in <link href>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/wp-includes/js/wp-emoji-release.min.js?ve... — Found in <script src>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/wp-content/uploads/2023/08/readcube_logo.svg — Found in <img src>. Returns HTTP 404.
- **[CRITICAL]** Broken link: https://rdcu.be/en/solution/readcube/ — Found in <a href>. Returns HTTP 404.
- **[CRITICAL]** Broken link: https://rdcu.be/en/solution/readcube-pro/ — Found in <a href>. Returns HTTP 404.
- **[CRITICAL]** Broken link: https://rdcu.be/en/solution/readcube-slr/ — Found in <a href>. Returns HTTP 404.
- **[CRITICAL]** Broken link: https://rdcu.be/en/literature-management/ — Found in <a href>. Returns HTTP 404.
- **[CRITICAL]** Broken link: https://rdcu.be/en/literature-review/ — Found in <a href>. Returns HTTP 404.
- **[CRITICAL]** Broken link: https://rdcu.be/en/document-delivery/ — Found in <a href>. Returns HTTP 404.
- **[CRITICAL]** Broken link: https://rdcu.be/en/ai-assistant/ — Found in <a href>. Returns HTTP 404.
- **[CRITICAL]** Broken link: https://rdcu.be/en/literature-monitoring/ — Found in <a href>. Returns HTTP 404.
- **[CRITICAL]** Broken link: https://rdcu.be/en/smartcite/ — Found in <a href>. Returns HTTP 404.
- **[CRITICAL]** Broken link: https://rdcu.be/en/use-case/corporate-libraries-knowledge... — Found in <a href>. Returns HTTP 404.
- **[CRITICAL]** Broken link: https://rdcu.be/en/use-case/government-organizations/ — Found in <a href>. Returns HTTP 404.
- **[CRITICAL]** Broken link: https://rdcu.be/en/use-case/health-and-environmental-agen... — Found in <a href>. Returns HTTP 404.
- **[CRITICAL]** Broken link: https://rdcu.be/en/use-case/rd-teams/ — Found in <a href>. Returns HTTP 404.
- **[CRITICAL]** Broken link: https://rdcu.be/en/use-case/medical-affairs/ — Found in <a href>. Returns HTTP 404.
- **[CRITICAL]** Broken link: https://rdcu.be/en/use-case/non-profit-organizations/ — Found in <a href>. Returns HTTP 404.
- **[CRITICAL]** Broken link: https://rdcu.be/en/use-case/regulatory-agencies/ — Found in <a href>. Returns HTTP 404.
- **[CRITICAL]** Broken link: https://rdcu.be/en/use-case/pharmacovigilance/ — Found in <a href>. Returns HTTP 404.
- **[CRITICAL]** Broken link: https://rdcu.be/en/request-a-demo/ — Found in <a href>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/wp-content/uploads/2024/09/Gradients-Loop... — Found in <source src>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/wp-content/uploads/bb-plugin/cache/31700-... — Found in <link href>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/wp-content/uploads/bb-plugin/cache/31703-... — Found in <link href>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/wp-content/uploads/bb-plugin/cache/31706-... — Found in <link href>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/wp-content/uploads/2023/06/roche_logo.png — Found in <img src>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/wp-content/uploads/2023/06/Medscape_Logo.png — Found in <img src>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/wp-content/uploads/2023/06/logo-momatx.png — Found in <img src>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/wp-content/uploads/2023/06/ksq_logo.png — Found in <img src>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/wp-content/uploads/2023/06/celsius_logo.png — Found in <img src>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/wp-content/uploads/2023/06/boehringeringe... — Found in <img src>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/wp-content/uploads/2023/06/roivant.png — Found in <img src>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/wp-content/uploads/2024/09/corporate-libr... — Found in <img src>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/wp-content/uploads/2023/09/ReadCube_Indus... — Found in <img src>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/wp-content/uploads/2024/09/medical-affair... — Found in <img src>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/wp-content/uploads/2024/09/research-dev.jpg — Found in <img src>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/wp-content/uploads/2023/09/ReadCube_Featu... — Found in <img src>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/wp-content/uploads/2024/09/non-profit.jpg — Found in <img src>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/wp-content/uploads/2024/09/government-env... — Found in <img src>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/wp-content/uploads/2024/09/regulatory.jpg — Found in <img src>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/wp-content/uploads/2025/01/readcube_logo_... — Found in <img src>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/wp-content/uploads/2025/10/users-love-us-... — Found in <img src>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/wp-content/uploads/2018/09/ReferenceManag... — Found in <img src>. Returns HTTP 404.
- **[CRITICAL]** Broken link: https://rdcu.be/en/news/ — Found in <a href>. Returns HTTP 404.
- **[CRITICAL]** Broken link: https://rdcu.be/en/case-studies/ — Found in <a href>. Returns HTTP 404.
- **[CRITICAL]** Broken link: https://rdcu.be/en/white-papers/ — Found in <a href>. Returns HTTP 404.
- **[CRITICAL]** Broken link: https://rdcu.be/en/training-videos/ — Found in <a href>. Returns HTTP 404.
- **[CRITICAL]** Broken link: https://rdcu.be/en/download/ — Found in <a href>. Returns HTTP 404.
- **[CRITICAL]** Broken link: https://rdcu.be/en/release-notes/ — Found in <a href>. Returns HTTP 404.
- **[CRITICAL]** Broken link: https://rdcu.be/en/help-center/ — Found in <a href>. Returns HTTP 404.
- **[CRITICAL]** Broken link: https://rdcu.be/en/supported-styles/ — Found in <a href>. Returns HTTP 404.
- **[CRITICAL]** Broken link: https://rdcu.be/en/terms/ — Found in <a href>. Returns HTTP 404.
- **[CRITICAL]** Broken link: https://rdcu.be/en/privacy/ — Found in <a href>. Returns HTTP 404.
- **[CRITICAL]** Broken link: https://rdcu.be/en/security/ — Found in <a href>. Returns HTTP 404.
- **[CRITICAL]** Broken link: https://rdcu.be/en/data-protection-policy/ — Found in <a href>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/wp-content/plugins/bb-plugin/js/libs/jque... — Found in <script src>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/wp-includes/js/masonry.min.js?ver=4.2.2 — Found in <script src>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/wp-content/plugins/betterdocs/assets/bloc... — Found in <script src>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/wp-content/plugins/the-events-calendar/co... — Found in <script src>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/wp-content/plugins/event-tickets/build/js... — Found in <script src>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/wp-content/plugins/event-tickets/build/js... — Found in <script src>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/wp-content/plugins/bb-plugin/js/libs/jque... — Found in <script src>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/wp-content/plugins/bbpowerpack/assets/js/... — Found in <script src>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/wp-content/uploads/bb-plugin/cache/12-lay... — Found in <script src>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/wp-content/plugins/bb-plugin/js/libs/jque... — Found in <script src>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/wp-content/plugins/bb-plugin/js/libs/jque... — Found in <script src>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/wp-content/plugins/bb-plugin/js/libs/jque... — Found in <script src>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/wp-content/plugins/bb-plugin/js/libs/jque... — Found in <script src>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/wp-content/uploads/bb-plugin/cache/0f34ff... — Found in <script src>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/wp-content/plugins/event-tickets/build/js... — Found in <script src>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/wp-includes/js/hoverIntent.min.js?ver=1.10.2 — Found in <script src>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/wp-content/plugins/megamenu/js/maxmegamen... — Found in <script src>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/wp-content/plugins/megamenu-pro/assets/pu... — Found in <script src>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/wp-content/themes/bb-theme/js/theme.min.j... — Found in <script src>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/wp-content/uploads/bb-plugin/cache/31700-... — Found in <script src>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/wp-content/uploads/bb-plugin/cache/31703-... — Found in <script src>. Returns HTTP 404.
- **[WARNING]** Broken link: https://rdcu.be/wp-content/uploads/bb-plugin/cache/31706-... — Found in <script src>. Returns HTTP 404.

### Mixed Content (A+ — 100/100)

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

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

### Open Graph (B — 85/100)

*Open Graph tags are partially configured — some improvements recommended.*

- **[WARNING]** Missing og:image — The og:image tag provides a preview image for social sharing.
- **[INFO]** og:title is short (4 characters) — Ideal length is 25–60 characters for social sharing previews.

### Structured Data (A+ — 100/100)

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

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

---

## Infrastructure

### DNS Records (A+ — 95/100)

*2 A records, 19 ms lookup*

- **[PASS]** Resolves to 2 IPv4 address(es)
- **[INFO]** No IPv6 (AAAA) records
- **[PASS]** 2 nameserver(s) configured
- **[PASS]** 5 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.
- **[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: 19 ms

### Redirect Chain (A — 90/100)

*1 redirect(s), 873 ms total*

- **[PASS]** Single redirect
- **[INFO]** WWW normalization redirect
- **[INFO]** Uses 302 (temporary) redirect — If permanent, use 301 instead.
- **[INFO]** Redirect overhead: 873 ms total
- **[INFO]** Cross-domain redirect detected

### 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 (F — 25/100)

*robots.txt present, sitemap with 0 URLs*

- **[PASS]** robots.txt is present
- **[CRITICAL]** robots.txt blocks all crawlers — Disallow: / for all user-agents prevents search engines from indexing any page. This will remove the site from search results.
- **[PASS]** sitemap.xml is present
- **[WARNING]** sitemap.xml contains invalid XML — Search engines may not be able to parse the sitemap. Fix XML validation errors.
- **[WARNING]** sitemap.xml is empty — no URLs found — An empty sitemap provides no value. Add <url> entries for your pages.
- **[INFO]** robots.txt does not reference a sitemap — Add a 'Sitemap:' directive to robots.txt so search engines can discover your sitemap.

### URL Variants (A+ — 100/100)

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

- **[PASS]** HTTP correctly 301-redirects to HTTPS

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

*rdcu.be — hosted on AWS*

- **[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)

*2 trackers detected*

- **[INFO]** 2 third-party trackers detected — Found 1 analytics, 0 advertising, 0 marketing, 1 tag manager trackers.
- **[WARNING]** Trackers detected but no cookie policy found — This page loads 2 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 · 2 trackers · 0 pre-consent*

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

---

## Legal

### Legal Page Ecosystem (B — 75/100)

*3 of 7 expected legal pages detected*

- **[PASS]** Privacy Policy detected — Found at /en/privacy/, linked from footer.
- **[PASS]** Terms of Service detected — Found at /en/terms/, linked from footer.
- **[PASS]** Cookie Policy detected — Found at #, linked from footer.
- **[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 Digital Science Research & Solutions Inc*

- **[PASS]** Copyright notice is up to date — Copyright notice is up to date: © 2026 Digital Science Research & Solutions Inc
- **[PASS]** Copyright holder: Digital Science Research & Solutions Inc

### 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: Consent management platform detected: cookielaw.org; Text mentions: data protection; Privacy policy page found. EU General Data Protection Regulation — governs collection and processing of personal data of EU residents.

### Third-Party Data Sharing

*2 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]** 2 third-party services across 2 categories — 2 third-party services detected across 2 categories: Analytics (1), Tag Management (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.
- **[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 (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 (B — 75/100)

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

- **[INFO]** HTTP/3 (QUIC) not advertised — HTTP/3 eliminates head-of-line blocking. If your CDN supports it, consider enabling it.
- **[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+ — 100/100)

*8 landmarks*

- **[PASS]** <main> landmark present
- **[PASS]** 5 <nav> landmark(s) found
- **[PASS]** All <nav> elements are properly labeled
- **[PASS]** Skip navigation link present

### Heading Hierarchy (A — 85/100)

*35 headings, 1 skip(s)*

- **[PASS]** Single H1 present
- **[WARNING]** Heading level skipped: H3 → H5 (missing H4) — Skipping heading levels breaks the document outline. Screen readers may interpret missing levels as structural errors.

### Alt Text Quality (C — 60/100)

*14 of 28 images have issues*

- **[CRITICAL]** 14 image(s) missing alt attribute — Images without alt text are invisible to screen readers.
- **[PASS]** 4 decorative image(s) correctly marked
- **[PASS]** 10 image(s) with good alt text

### Form Accessibility (A+ — 100/100)

*All 8 controls labeled*

- **[PASS]** 8 control(s) properly labeled

### Link & Button Quality (F — 27/100)

*19 issue(s) across 81 links and 21 buttons*

- **[CRITICAL]** 4 link(s) with no accessible text — Links without text are announced as raw URLs by screen readers.
- **[WARNING]** 11 link(s) with generic text — Generic link text like 'click here' doesn't describe the destination.
- **[WARNING]** 1 link(s) open in new tab without warning — Add '(opens in new tab)' to link text or aria-label.
- **[CRITICAL]** 4 button(s) with no accessible text — Icon-only buttons need an aria-label so screen readers can announce them.
- **[PASS]** 65 link(s) with descriptive text

---

## UX

### 404 Error Page (F — 20/100)

*Soft 404 detected*

- **[CRITICAL]** Soft 404: server returns HTTP 200 for non-existent pages — The server returns HTTP 200 for a path that does not exist. Search engines will index these pages, diluting your real content. Configure your server to return a proper 404 status code for missing pages.

### Favicon & Branding (B — 70/100)

*4 icon(s) detected*

- **[PASS]** favicon.ico present at site root
- **[PASS]** HTML icon links detected
- **[PASS]** Apple touch icon present
- **[PASS]** Multiple icon sizes detected

### Web Manifest (F — 30/100)

*Invalid JSON*

- **[WARNING]** Manifest contains invalid JSON — Manifest at https://rdcu.be/manifest.json contains invalid JSON. Browsers cannot parse it.

### 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 (D — 45/100)

*2 navigation pattern(s)*

- **[PASS]** Skip navigation link detected
- **[PASS]** Back-to-top link detected
- **[PASS]** 5 navigation landmark(s) detected
- **[PASS]** Hamburger menu detected (responsive design)

---

## SEO

### Canonical URL (A — 85/100)

*Minor issues*

- **[PASS]** Canonical tag present
- **[WARNING]** Canonical does not match final URL (https://www.readcube.com)
- **[INFO]** Canonical points to a different domain

### Meta Tags (A — 85/100)

*Title: 11 chars*

- **[PASS]** Page title is set
- **[WARNING]** Title is only 11 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)

*1664 words, Very Difficult*

- **[PASS]** Page has 1664 words — good depth for search engines
- **[INFO]** Text-to-HTML ratio is 5% — Very low ratio suggests heavy framework overhead or boilerplate.
- **[INFO]** Reading level: Very Difficult (grade 19)

### Internal Links (A+ — 100/100)

*71 internal, 10 external*

- **[PASS]** 71 internal links (88%)
- **[PASS]** 81% of links use descriptive anchor text
- **[INFO]** 71 internal / 10 external links

### Image SEO (A+ — 95/100)

*28 images, 28 descriptive filenames*

- **[PASS]** All images have descriptive filenames
- **[INFO]** 14 image(s) missing alt text — see Accessibility tab

### Hreflang

*0 hreflang tags*


---

## Sustainability

### CO2 Per Page Load (F — 30/100)

*1.77g CO2 per view*

- **[WARNING]** 1.77g CO2 per page view — This page transfers 6.2 MB, producing an estimated 1.77g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.33g, network 0.31g, end-user device 1.13g.
- **[INFO]** At 10,000 monthly views: 211.9 kg CO2/year — With 10,000 page views per month, this page would generate approximately 211.9 kg of CO2 annually — equivalent to charging 26483 smartphones.

### Green Hosting (D — 50/100)

*Unknown*

- **[INFO]** Hosting provider could not be identified — Without knowing the provider, we cannot determine their energy sourcing. Check with your hosting provider about their renewable energy commitments.
- **[INFO]** Green hosting status based on known provider commitments — Green hosting detection uses a curated database of provider renewable energy commitments. This is not a real-time verification. For authoritative checks, visit thegreenwebfoundation.org.

### Repeat Visit Weight (A+ — 100/100)

*100% cached*

- **[PASS]** 100% reduction on repeat visits — Returning visitors download only 20 KB (vs 6383 KB first visit). 115 of 116 resources are served from browser cache, saving 1.76g CO2 per repeat visit.
- **[INFO]** Repeat visit: 0.01g CO2 (first visit: 1.77g)

### Carbon Budget (F — 30/100)

*83th percentile*

- **[WARNING]** 1.77g CO2 — above the median website (0.60g) — Heavier than an estimated 17% of websites. Reducing page weight, optimizing images, and removing unused JavaScript would lower the carbon footprint. See the Performance tab.
- **[INFO]** Estimated 83th percentile — Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.

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

*97% efficient*

- **[PASS]** Transfer efficiency: 97% — Only 196 KB of potential savings identified. Your page is well-optimized for size.

---

---

*Generated by [BeaverCheck](https://beavercheck.com) — https://beavercheck.com/results/5f41bc22-d2ac-4aa0-8af1-6f9810506c6d*