# BeaverCheck Audit Report — https://nu11cyber.com

**Date:** May 29, 2026  
**URL:** https://nu11cyber.com  
**Overall Grade:** A (93/100)  
**Report:** https://beavercheck.com/results/c9407b9b-1553-4ff8-b473-bd57ac475443

## Top Findings

1. **[WARNING]** 1 font preload(s) missing `crossorigin` -- font will be downloaded twice — Performance > Resource Hints
2. **[WARNING]** 1 render-blocking <script src> tag(s) without async/defer — Performance > JavaScript Blocking
3. **[WARNING]** HSTS max-age is too short (0s, should be ≥ 31536000s) — Security > Security Headers
4. **[WARNING]** Total JS execution time is 4.0 s -- over the 3.5s budget — Performance > JavaScript Blocking
5. **[WARNING]** Unattributable: 904ms CPU time — Performance > JS Execution Cost

---

## Lighthouse Scores

| Category | Score |
|----------|-------|
| Performance | 96 |
| Accessibility | 100 |
| Best Practices | 88 |
| SEO | 100 |

---

## Security

### Security Headers (A — 90/100)

*9 of 10 headers properly configured*

- **[WARNING]** HSTS max-age is too short (0s, should be ≥ 31536000s) — A short max-age leaves a window for downgrade attacks. Set max-age to at least 31536000 (1 year).
- **[PASS]** X-Content-Type-Options is properly configured
- **[PASS]** X-Frame-Options is properly configured
- **[PASS]** Referrer-Policy is properly configured
- **[PASS]** Permissions-Policy is set
- **[PASS]** Content-Security-Policy is present
- **[PASS]** Cross-Origin-Opener-Policy is properly configured
- **[PASS]** Cross-Origin-Embedder-Policy is set
- **[PASS]** X-Powered-By header is not present
- **[PASS]** Server header is present without version info
- **[INFO]** Domain is not in the Chrome HSTS preload list (status: unknown) — Submit your domain to hstspreload.org to close the trust-on-first-use gap. Requires a preload-ready HSTS header (max-age=31536000+, includeSubDomains, preload).

### Content Security Policy (A+ — 100/100)

*9 of 11 CSP checks passed*

- **[INFO]** Raw CSP policy
- **[PASS]** default-src directive is set
- **[PASS]** No 'unsafe-inline' in script source
- **[PASS]** No 'unsafe-eval' in script source
- **[PASS]** No wildcard in script source
- **[PASS]** object-src is set to 'none'
- **[PASS]** base-uri is properly restricted
- **[PASS]** frame-ancestors directive is set
- **[PASS]** form-action directive is set
- **[PASS]** upgrade-insecure-requests is enabled
- **[INFO]** Content-Security-Policy-Report-Only is also set — A report-only policy is active alongside the enforcing policy for monitoring.

### 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.
- **[INFO]** OCSP stapling not enabled — Without stapling, the browser performs a separate OCSP roundtrip on first connection -- adding latency and leaking the visited host to the CA. Enable OCSP stapling on your TLS server.
- **[PASS]** Certificate is valid (expires in 88 days)
- **[PASS]** Certificate chain has 2 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)

*1 cookies analyzed, 3 checks passed*

- **[PASS]** Cookie 'sl-session' has the Secure flag
- **[PASS]** Cookie 'sl-session' has the HttpOnly flag
- **[PASS]** Cookie 'sl-session' has SameSite=None

### Cookie Hygiene (A+ — 100/100)

*All 1 cookie(s) pass hygiene checks*

- **[PASS]** All 1 cookie(s) pass hygiene checks

### WAF / Bot Protection (A — 90/100)

*Cloudflare*

- **[PASS]** Cloudflare detected — Detected via: cf-ray: a036de68fa21ce8d-SIN

### security.txt (A+ — 100/100)

*Vulnerability disclosure policy*

- **[PASS]** security.txt found

### Cross-Origin Tab Safety (A+ — 100/100)

*No new-tab links found -- no tabnabbing surface*

- **[PASS]** No new-tab links present

### CSP Inline-Style Readiness (B — 90/100)

*1 inline style attribute(s) detected*

- **[INFO]** 1 inline style attribute(s) detected — Each `style=""` attribute forces `style-src 'unsafe-inline'` in any Content-Security-Policy, which negates most of CSP's XSS-mitigation value. 1 inline style(s) is low. Affected element types include: nav. Move styles to a stylesheet; use CSS custom properties for runtime-dynamic values; or adopt a nonce/hash CSP policy. Most teams take the stylesheet path because it's also a maintainability win.

### Trusted Types (XSS Sink Hardening) (A+ — 100/100)

*Trusted Types in report-only mode -- rollout in progress*

- **[PASS]** Trusted Types running in report-only mode -- enforcement rollout in progress

### Bot Challenge Detection (A+ — 100/100)

*Scan reached real page content (no bot-protection interstitial)*

- **[PASS]** No bot-protection interstitial detected -- the rest of the report reflects the real page

### Soft-404 Detection (A+ — 100/100)

*No soft-404 patterns detected in page title or headings*

- **[PASS]** No soft-404 patterns detected in page title or headings

### Empty Page Detection (A+ — 100/100)

*Page has substantive body text and no placeholder / template-leak signals*

- **[PASS]** Page has substantive body text and no placeholder / template-leak signals

### Geo-Restriction Detection (A+ — 100/100)

*No geo-restriction signals detected -- scan reached the page from an allowed region*

- **[PASS]** No geo-restriction detected

### Maintenance Mode Detection (A+ — 100/100)

*No maintenance-mode signals detected -- scan reached a normal page*

- **[PASS]** No maintenance-mode signals detected

### Subresource Integrity Adoption (A+ — 100/100)

*100% SRI adoption (2/2 third-party resources)*

- **[PASS]** SRI adoption: 2/2 third-party resources protected (100%) — Of 2 third-party `<script>` / `<link rel=stylesheet>` resources, 2 (100%) declare a Subresource Integrity hash via the `integrity=` attribute. SRI binds the page to the exact bytes of the third-party resource: if the CDN is compromised, attacker-modified bytes won't match the declared hash and the browser refuses to execute the resource.

Fix: add `integrity="sha384-..."` and `crossorigin="anonymous"` attributes. Generators: srihash.org, or in-browser via `await crypto.subtle.digest('SHA-384', bytes)`. Cache-bust the resource URL when you change versions, since the integrity hash will mismatch with old cached bytes.

### CORS Depth (A+ — 100/100)

*No CORS response headers -- the resource is same-origin-only by browser default*

- **[PASS]** No CORS response headers -- the resource is same-origin-only by browser default

### Permissions-Policy Granularity (A — 85/100)

*70% high-risk feature coverage (7/10)*

- **[PASS]** Permissions-Policy covers 7/10 high-risk features (70%) — The Permissions-Policy header explicitly declares policies for 7/10 high-risk features.

Covered: camera, microphone, geolocation, payment, usb, accelerometer, gyroscope

Not declared (default-allow): serial, midi, magnetometer

The non-declared features fall back to their spec-default policy (usually `self`), which means an XSS-injected or compromised iframe could request them. For features the page genuinely doesn't use, declare `feature=()` to fully close them.

### Referrer-Policy Strictness (A+ — 100/100)

*Referrer-Policy is `same-origin` (strict -- Referer sent only on same-origin requests)*

- **[PASS]** Referrer-Policy: `same-origin` -- strict -- Referer sent only on same-origin requests — Full URL Referer header on same-origin requests; no Referer at all on cross-origin. Strong privacy posture; same-origin analytics still work.

### Source Map Exposure (A+ — 100/100)

*No source maps accessible (probed 2 candidate URL(s))*

- **[PASS]** No source maps accessible across 2 probed candidate(s)

### HTML Version Disclosure (A+ — 100/100)

*No software-version disclosures in HTML*

- **[PASS]** No software-version disclosures in HTML

### Open Redirect Surface (A+ — 100/100)

*No redirect-shaped query parameters in DOM links*

- **[PASS]** No redirect-shaped query parameters in DOM links

### Auth Security (A+ — 100/100)

*Page is not a login form -- auth-security checks are N/A*

- **[PASS]** Page does not appear to be a login form

### Subdomain Inventory Exposure (A+ — 100/100)

*No risky subdomain names in certificate SANs*

- **[PASS]** No risky subdomain names in certificate SANs

---

## Advanced Security

### Subresource Integrity (A+ — 100/100)

*2 of 2 external resources have SRI*

- **[PASS]** script from images.dmca.com has SRI protection
- **[PASS]** script from static.cloudflareinsights.com has SRI protection

### 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 (B — 82/100)

*DMARC: reject, SPF: ~all, DKIM*

- **[PASS]** DMARC policy is reject — strongest protection
- **[INFO]** SPF ends in ~all (soft fail) — Soft fail tells receivers to accept-but-mark unauthorized mail. Migrate to -all once you've confirmed all legitimate senders are listed (DMARC aggregate reports help verify).
- **[PASS]** DKIM configured (selectors: key2, fm3, protonmail3, protonmail2, sendgrid, mailgun, scph1019, google, selector2, k2, smtpapi, default, mta, s1, mlsend2, s2, klaviyo1, klaviyo2, ed25519, selector1, key, everlytickey1, s1024, key1, protonmail, amazonses, dkim, mlsend1, k1, intercom, zoho, scph0817, mandrill, pm, fm2, mail, everlytickey2, s2048, scph0316, fm1, smtp, mxvault)
- **[INFO]** MTA-STS not configured — MTA-STS forces inbound mail to use TLS, preventing downgrade attacks. Requires both a TXT record at _mta-sts.<domain> and a policy file at https://mta-sts.<domain>/.well-known/mta-sts.txt.
- **[INFO]** TLS-RPT not configured — TLS-RPT (RFC 8460) lets MTAs report TLS-handshake failures, so you can detect and fix MTA-STS misconfigurations. Add a TXT record at _smtp._tls.<domain>.
- **[INFO]** BIMI not configured — BIMI (Brand Indicators for Message Identification) lets supporting clients (Gmail, Apple Mail, Yahoo) display your verified logo next to your messages. Optional but raises trust signals. Requires DMARC at p=quarantine or p=reject to be honored.

### API Surface (A+ — 100/100)

*No API specs or GraphQL introspection found (probed 11 candidate path(s))*

- **[PASS]** No API specs or GraphQL introspection found (probed 11 path(s))

### Permissions-Policy (A+ — 95/100)

*7 directives, 0 missing*

- **[PASS]** camera=() — blocked for all origins
- **[PASS]** microphone=() — blocked for all origins
- **[PASS]** geolocation=() — blocked for all origins
- **[PASS]** payment=() — blocked for all origins
- **[PASS]** usb=() — blocked for all origins
- **[PASS]** accelerometer=() — blocked for all origins
- **[PASS]** gyroscope=() — blocked for all origins

### CORS Configuration (B — 80/100)

*No CORS headers*

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

---

## Performance

### Page Weight Budget (A+ — 98/100)

*584 KB transferred, 25 requests*

- **[PASS]** Page weighs 1.6 MB (584 KB transferred)
- **[PASS]** 25 HTTP requests
- **[INFO]** Estimated 0.12 g CO2 per page load

### Third-Party Impact (A+ — 100/100)

*3% third-party, 0 ms blocking*

- **[INFO]** Third-party code accounts for 3% of page weight (18.5 KiB of 584.1 KiB)
- **[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 (A — 90/100)

*3 images, 0 KB saveable*

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

### JS Execution Cost (F — 20/100)

*3989ms total JS execution*

- **[WARNING]** https://nu11cyber.com/assets/index-BywUXNAB.js: 2169ms CPU time
- **[WARNING]** Unattributable: 904ms CPU time
- **[WARNING]** https://nu11cyber.com/: 487ms CPU time
- **[WARNING]** https://nu11cyber.com/assets/vendor-D3F3s8fL.js: 375ms CPU time
- **[INFO]** https://static.cloudflareinsights.com/beacon.min.j...: 54ms CPU time
- **[INFO]** Third-party scripts: 54ms (1% of total)

### Font Loading (A+ — 100/100)

*1 fonts (48 KB)*

- **[INFO]** 1 font(s) use font-display: swap (FOUT risk but functional)

### JS Bundles (A+ — 100/100)

*6 scripts, 26 KB unused*

- **[WARNING]** https://nu11cyber.com/assets/index-BywUXNAB.js: 26 KB unused (8%) — Consider code splitting or tree shaking to reduce unused code.
- **[INFO]** Total unused JavaScript: 26 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 — 85/100)

*1 hints, 0 missing preconnects*

- **[WARNING]** 1 font preload(s) missing `crossorigin` -- font will be downloaded twice — Fonts are always fetched as crossorigin=anonymous; a preload without the attribute creates a different cache key, so the browser refetches when the actual font request happens. Sample: /fonts/UcC73FwrK3iLTeHuS_nVMrMxCp50SjIa1ZL7.woff2. Add `crossorigin` (or `crossorigin="anonymous"`) to each preload.
- **[PASS]** Page uses 1 resource hint(s)

### HTTP/3 (QUIC) (A+ — 100/100)

*HTTP/3 advertised via Alt-Svc*

- **[PASS]** HTTP/3 (QUIC) is supported — First-load mobile users on cellular networks see meaningful latency improvements with HTTP/3. The QUIC transport collapses TLS + TCP handshakes into one and recovers faster from packet loss.

### Compression Algorithm (A+ — 100/100)

*Main response uses brotli*

- **[PASS]** Main HTML response uses brotli (Content-Encoding: br) — Brotli is the best text-compression algorithm for general use, ~20% smaller than gzip on average (40% on smaller files). Modern browsers all support it.

### LCP Image Preload (A+ — 100/100)

*LCP preload audit not available*

- **[PASS]** LCP image preload audit not available for this scan

### Main HTML Cache-Control (A+ — 100/100)

*Main HTML max-age=0 (≤ 5min) is appropriate*

- **[PASS]** Main HTML max-age=0 (≤ 5min) is appropriate

### Server-Timing Observability (A+ — 100/100)

*3 Server-Timing entries advertised*

- **[PASS]** Server-Timing header advertises 3 timing entries

### Server Response Intelligence (A+ — 95/100)

*2 server-response signal(s) detected*

- **[PASS]** `Vary` header declared: Accept-Encoding — The page declares a `Vary` header, telling downstream caches which request headers the response varies on. Critical for content-negotiated responses (compression, language, cookies, device class).
- **[INFO]** No `ETag` or `Last-Modified` -- conditional GET not supported — Without either header, browsers can't issue conditional GETs and refresh always re-downloads the full response body even when nothing changed. Add `ETag: "<hash>"` (or `Last-Modified: <date>`) on cacheable responses; the server returns 304 Not Modified when the client's cached copy is still valid, saving bandwidth.

### Page Weight Inventory (A+ — 100/100)

*25 resources · 584 KB · 26 KB savings available*

- **[PASS]** Within 1MB page-weight target
- **[INFO]** 4 third-party resources (3% of weight)
- **[INFO]** 1 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*


### JavaScript Blocking (B — 84/100)

*2 JS blocking issue(s) detected*

- **[WARNING]** 1 render-blocking <script src> tag(s) without async/defer — Each `<script src=...>` without `async`, `defer`, or `type="module"` blocks HTML parsing while the browser fetches and executes it. The block lasts the entire round-trip + execution time -- on slow networks this translates directly into LCP delay. Add `defer` (executes after parse, in source order) for scripts that interact with the DOM, or `async` (executes whenever ready) for analytics / independent scripts. Module scripts (`type="module"`) are deferred by default.
- **[WARNING]** Total JS execution time is 4.0 s -- over the 3.5s budget — Total JavaScript execution (parse + compile + run) across all scripts exceeds 3.5 seconds. On low-end devices that becomes 7-15+ seconds and shows up directly in TBT and INP. Reduce by: tree-shaking unused dependencies, code-splitting (dynamic `import()`), removing or deferring third-party tracking, and replacing heavy frameworks where they're not needed.

### CSS Performance Depth (A+ — 100/100)

*No CSS performance depth issues detected*

- **[PASS]** No CSS performance depth issues detected

---

## Content Quality

### Links (A+ — 100/100)

*24 links checked, 24 healthy, 0 broken*

- **[PASS]** 24 of 24 links are healthy

### 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+ — 100/100)

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


### Open Graph / Twitter Card Depth (A — 90/100)

*1 OG/Twitter depth issue(s) detected*

- **[INFO]** og:image aspect ratio 1.00:1 (600×600) is outside Facebook's recommended ~1.91:1 — Facebook's recommended OG image is 1200×630 (1.91:1 aspect ratio). The declared dimensions 600×600 give a ratio of 1.00:1, which Facebook will crop center-to-fit; the result often clips important content from the top/bottom or sides. Use a wider/taller image close to 1.91:1, or accept the cropping consequences.

### Structured Data (A+ — 100/100)

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


### Rich Results Eligibility (A+ — 100/100)

*1 JSON-LD block(s) declaring 1 schema type(s)*

- **[PASS]** 1 rich-result schema type(s) declared — Inventory of structured-data types on the page (each may unlock a different SERP feature):

Organization

Search engines decide whether to render rich results based on content quality + page-level signals; declaring the schema is necessary but not sufficient.

### Image Optimization (B — 85/100)

*1 issues found across 4 images*

- **[WARNING]** All 3 images use legacy formats (JPEG/PNG/GIF) — WebP offers 25-35% smaller files than JPEG. Use <picture> with <source type="image/webp"> for modern format support.

### Autoplay Media (A+ — 100/100)

*No autoplay media on the page*

- **[PASS]** No autoplay media on the page

---

## Infrastructure

### DNS Records (A+ — 100/100)

*2 A records, 15 ms lookup*

- **[PASS]** Resolves to 2 IPv4 address(es)
- **[PASS]** Has 2 IPv6 (AAAA) record(s)
- **[PASS]** 2 nameserver(s) configured
- **[PASS]** 3 mail exchanger(s) configured
- **[PASS]** SPF record present in TXT
- **[PASS]** DNS resolution time: 15 ms

### Subdomain Takeover (A+ — 100/100)

*No subdomain takeover risk detected*

- **[PASS]** No CNAME record present

### DNSSEC (B — 80/100)

*Unsigned (DNSSEC not deployed)*

- **[INFO]** DNSSEC is not deployed — The zone is not DNSSEC-signed. Users on validating resolvers (Cloudflare 1.1.1.1, Quad9 9.9.9.9, growing default in mobile resolvers) get no protection against DNS spoofing for this domain. Most registrars now offer DNSSEC at a single click; consider enabling it for sites where authenticity matters (banking, healthcare, government).

### CAA Records (B — 80/100)

*No CAA records (any CA may issue certificates)*

- **[INFO]** No CAA records published — Without CAA records, any publicly-trusted CA can issue certificates for this domain. Adding a CAA record (`yourdomain. IN CAA 0 issue "letsencrypt.org"`) restricts issuance to CAs you authorize. Required by CAB Forum baseline since 2017; the default of 'any CA' is widely supported but is the broader attack surface for issuance fraud.

### Reverse DNS (C — 60/100)

*0/4 IPs match cert SAN*

- **[INFO]** PTR lookup failed for 104.21.62.206: lookup 104.21.62.206: no such host — No reverse DNS record set for this IP. Common on bare cloud-VM IPs without provider-side PTR; not a security issue.
- **[INFO]** PTR lookup failed for 172.67.139.63: lookup 172.67.139.63: no such host — No reverse DNS record set for this IP. Common on bare cloud-VM IPs without provider-side PTR; not a security issue.
- **[INFO]** PTR lookup failed for 2606:4700:3034::ac43:8b3f: lookup 2606:4700:3034::ac43:8b3f: no such host — No reverse DNS record set for this IP. Common on bare cloud-VM IPs without provider-side PTR; not a security issue.
- **[INFO]** PTR lookup failed for 2606:4700:3033::6815:3ece: lookup 2606:4700:3033::6815:3ece: no such host — No reverse DNS record set for this IP. Common on bare cloud-VM IPs without provider-side PTR; not a security issue.

### Multi-Resolver DNS Speed (A+ — 100/100)

*Mean 9ms across 3 resolvers (spread 4ms)*

- **[PASS]** Cloudflare: 7ms
- **[PASS]** Google: 10ms
- **[PASS]** Quad9: 11ms

### Redirect Chain (A+ — 100/100)

*No redirects — direct access*

- **[PASS]** No redirects — direct access

### IPv6 Readiness (F — 30/100)

*IPv6 records exist but unreachable*

- **[WARNING]** IPv6 DNS records exist but server is not reachable — Having AAAA records but an unreachable server is worse than no AAAA — clients may experience delays before falling back to IPv4.
- **[INFO]** IPv6 connection error

### Crawlability (A+ — 100/100)

*robots.txt present, sitemap with 3 URLs*

- **[PASS]** robots.txt is present
- **[PASS]** sitemap.xml is present
- **[PASS]** sitemap.xml is valid XML
- **[PASS]** sitemap.xml contains 3 entries
- **[PASS]** robots.txt references 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)

*nu11cyber.com — via Tucows Domains Inc., 1 months old*

- **[PASS]** Domain registered until Apr 28, 2027 (11 months remaining)
- **[INFO]** Domain is only 1 months old — Newly registered domains may face SEO trust challenges. Search engines generally give more authority to older domains. This is informational — not a problem to fix.
- **[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: Tucows Domains 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.

---

## Compliance

### WCAG Compliance (A+ — 100/100)

*No testable criteria*


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

*privacy policy found*

- **[PASS]** Privacy policy link found
- **[PASS]** Terms of service link found
- **[INFO]** No cookie consent banner detected
- **[CRITICAL]** 1 non-essential cookie(s) set without consent banner — Unrecognized (treated as non-essential): sl-session
- **[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.

### Consent UX Depth (A+ — 100/100)

*No consent-UX depth issues detected*

- **[PASS]** No consent-UX depth issues detected

### Tracker Inventory (A+ — 100/100)

*No known trackers detected on this page*

- **[PASS]** No known trackers detected on this page

### 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.

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

*No hreflang tags on this page*

- **[PASS]** No hreflang tags found (single-language site)

### Internationalization Extras (A+ — 100/100)

*No additional i18n signals detected*

- **[PASS]** No additional i18n signals detected

### 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

### Accessibility Statement (A — 85/100)

*Statement found, no conformance level*

- **[INFO]** Accessibility statement found but lacks WCAG conformance level — Mature accessibility statements declare a target conformance level (e.g., WCAG 2.1 AA). Without a stated level, users and reviewers cannot tell what the statement actually commits to.

### GDPR Article 13 Disclosures (A — 87/100)

*7 / 8 Art. 13 categories matched in homepage body*

- **[INFO]** GDPR Article 13 disclosure coverage: 7 / 8 categories — Scanned the homepage body text AND the linked /privacy page for GDPR Article 13 disclosures. Matched 7 of 8 categories: Data Protection Officer contact (where applicable), Data retention period, Data subject rights (access, erasure, rectification, etc.), Identity / contact details of the data controller, International data transfers, Legal basis for processing, Right to lodge a complaint with a supervisory authority. Missing: Recipients of personal data. Note: only the FIRST same-origin privacy-policy link is followed; deeper sub-pages (e.g. /legal/data-subject-rights) are not fetched.

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

*No third-party trackers detected*

- **[PASS]** No third-party trackers detected

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

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

- **[INFO]** 1 cookie(s) could not be classified

### Tracking Pixel Inventory (A+ — 100/100)

*No tracking pixels detected*

- **[PASS]** No tracking pixels detected

### Browser Fingerprinting (A+ — 100/100)

*No browser-fingerprinting libraries detected*

- **[PASS]** No browser-fingerprinting libraries detected

### Cross-Site Cookies (SameSite=None) (B — 85/100)

*1 cross-site cookie(s) (1 tracking-shaped, 0 essential)*

- **[INFO]** 1 tracking-shaped cross-site cookie(s): sl-session — Cookies with SameSite=None travel in cross-site contexts (third-party iframes, cross-origin POSTs, embedded widgets). With third-party cookies dying in Chrome/Firefox, the legitimate use cases narrowed to SSO + payment widgets + federated auth. Each tracking-shaped cookie surfaced here is a cross-site analytics or ad-tech surface that needs explicit privacy-policy disclosure beyond basic cookie banner consent. Audit each: is it conditional on consent? Does the privacy policy name the recipient + purpose? Switching to SameSite=Lax disables the cross-site travel without breaking same-site analytics.

### Beacon Tracking (sendBeacon) (A+ — 100/100)

*No navigator.sendBeacon usage detected in inline scripts*

- **[PASS]** No navigator.sendBeacon usage detected in inline scripts

---

## Legal

### Legal Page Ecosystem (A — 85/100)

*4 of 7 expected legal pages detected*

- **[PASS]** Privacy Policy detected — Found at /privacy.html, linked from footer.
- **[PASS]** Terms of Service detected — Found at /terms.html, linked from footer.
- **[PASS]** Cookie Policy detected — Found at /cookie-policy.html, linked from footer.
- **[PASS]** Accessibility Statement detected — Found at /accessibility.html, linked from footer.
- **[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 Nu11Cyber*

- **[PASS]** Copyright notice is up to date — Copyright notice is up to date: © 2026 Nu11Cyber
- **[PASS]** Copyright holder: Nu11Cyber

### 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: Privacy policy page found. EU General Data Protection Regulation — governs collection and processing of personal data of EU residents.
- **[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

*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 (A — 85/100)

*Cloudflare (DYNAMIC)*

- **[PASS]** Site is served via Cloudflare CDN (edge: SIN)
- **[INFO]** CDN cache status: DYNAMIC

### HTTP Caching (B — 70/100)

*public, max-age=0, must-revalidate*

- **[PASS]** Cache-Control header is set
- **[INFO]** No ETag or Last-Modified header — Conditional requests (304 Not Modified) are not possible without validators.

### Operational Status Page (B — 80/100)

*No status page link detected*

- **[INFO]** No operational status page link detected — Status pages communicate planned maintenance and incidents to users -- a hallmark of operationally-mature services. Most SaaS teams publish one via Atlassian Statuspage, Instatus, BetterUptime, or a self-hosted Cachet. Smaller sites legitimately don't need one; flagged as Info, not a failure.

### 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]** HSTS max-age is short: 0 days — HSTS max-age should be at least 1 year (31536000 seconds).
- **[PASS]** HSTS preload enabled
- **[PASS]** TLS 1.3 in use (fastest handshake, 1-RTT)

### Health Check Endpoint (A+ — 100/100)

*Health endpoint at https://nu11cyber.com/health (HTTP 200)*

- **[PASS]** Public health endpoint at https://nu11cyber.com/health

### CDN Cache Observability (A+ — 100/100)

*Cache state: DYNAMIC*

- **[PASS]** CDN cache state observable via 1 header(s)

---

## Accessibility

### Landmark Structure (A — 85/100)

*7 landmarks*

- **[PASS]** <main> landmark present
- **[PASS]** 2 <nav> landmark(s) found
- **[PASS]** All <nav> elements are properly labeled
- **[WARNING]** Skip navigation link is missing (WCAG 2.4.1) — Add a skip link as the first focusable element so keyboard users can bypass repeated navigation.
- **[PASS]** Search landmark present

### Heading Hierarchy (A+ — 100/100)

*3 headings*

- **[PASS]** Single H1 present

### Heading Text Quality (A+ — 95/100)

*1 heading-text-quality issue(s) detected*

- **[INFO]** 1 heading(s) are all-uppercase (excluding short acronyms) — Headings rendered in all-uppercase are a styling choice that should be done via CSS (`text-transform: uppercase`), not by typing the text in caps. Capitalized text is read letter-by-letter by some screen readers (e.g., "H-E-L-L-O W-O-R-L-D" instead of "hello world"). It's also a soft signal of CMS-migration artifacts where the original lowercase intent was lost.

### Alt Text Quality (A+ — 100/100)

*All 4 images OK*

- **[PASS]** 1 decorative image(s) correctly marked
- **[PASS]** 3 image(s) with good alt text

### Form Accessibility (A+ — 100/100)

*All 1 controls labeled*

- **[PASS]** 1 control(s) properly labeled

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

*9 links, 5 buttons — all OK*

- **[PASS]** 9 link(s) with descriptive text

### Form Input Types (A+ — 100/100)

*1 form control(s) checked, no type mismatches*

- **[PASS]** No input-type mismatches detected

### Form Input Quality (A+ — 100/100)

*1 form control(s) checked, no input-semantic issues*

- **[PASS]** All form input semantics look correct

### Mobile Keyboard & Autofill (A+ — 100/100)

*No autofill-eligible form controls*

- **[PASS]** No autofill-eligible form controls (no name/email/tel/address fields)

### Document Language (A+ — 100/100)

*Lang attribute set to "zh-CN"*

- **[PASS]** <html lang="zh-CN"> is set and valid

### Tabindex Anti-Patterns (A+ — 100/100)

*No explicit tabindex attributes found*

- **[PASS]** No explicit tabindex attributes found

### Iframe Accessibility (A+ — 100/100)

*No iframes on this page*

- **[PASS]** No iframes on this page

### Tap Target Adequacy (A+ — 100/100)

*All tap targets meet WCAG 2.5.5/2.5.8 sizing*

- **[PASS]** All tap targets meet WCAG 2.5.5 (44x44px) sizing

### Mobile-Readable Font Sizes (A+ — 100/100)

*All 18 visible text node(s) render at >= 12 CSS pixels*

- **[PASS]** All text uses legible mobile font sizes (>= 12 CSS px)

---

## UX

### 404 Error Page (C — 65/100)

*HTTP 404, custom page*

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

### Favicon & Branding (B — 80/100)

*8 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 (A+ — 95/100)

*PWA-ready*

- **[PASS]** Meets PWA install criteria
- **[PASS]** Name present: Nu11Cyber
- **[PASS]** 192x192 icon present
- **[PASS]** 512x512 icon present
- **[PASS]** Display mode: standalone

### PWA Depth (A+ — 100/100)

*No PWA depth issues detected*

- **[PASS]** No PWA depth issues detected

### Dark Mode Support (A+ — 100/100)

*Full dark mode support*

- **[PASS]** color-scheme meta tag present — The site declares support for light and dark color schemes via <meta name='color-scheme'>.
- **[PASS]** Dark-specific theme-color detected — A theme-color with media='(prefers-color-scheme: dark)' adapts the browser toolbar for dark mode.
- **[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 (A+ — 100/100)

*Print styles detected*

- **[PASS]** External print stylesheet detected

### Navigation UX (D — 40/100)

*1 navigation pattern(s)*

- **[PASS]** Search functionality detected
- **[PASS]** 2 navigation landmark(s) detected
- **[PASS]** Hamburger menu detected (responsive design)

### Mobile UX Depth (A+ — 100/100)

*2 mobile-depth signal(s) detected*

- **[PASS]** Browser-chrome `theme-color` meta tag present — The page sets `<meta name="theme-color" content="...">`, which Android Chrome uses to tint the status bar and iOS Safari uses for the toolbar background. Brand polish that costs nothing and Just Works.
- **[PASS]** Viewport `viewport-fit=cover` -- supports notched / dynamic-island devices — The viewport meta declares `viewport-fit=cover`, which lets the page draw into the safe-area edges (notch, dynamic island, home indicator) on iPhone X+ devices. Pair with `env(safe-area-inset-*)` CSS to keep critical UI inside the inset rectangle while letting backgrounds extend edge-to-edge.

---

## SEO

### Canonical URL (A+ — 100/100)

*Properly configured*

- **[PASS]** Canonical tag present
- **[PASS]** Canonical is self-referencing
- **[PASS]** Canonical matches final URL after redirects
- **[PASS]** Canonical target returns 200

### Meta Tags (A+ — 95/100)

*Title: 67 chars*

- **[PASS]** Page title is set
- **[INFO]** Title is 67 characters — may be truncated in search results
- **[INFO]** Meta description is 178 characters — truncated on mobile (~160 char limit)
- **[PASS]** Title and H1 are well-aligned

### Title Style Depth (A — 90/100)

*1 title-style issue(s) detected*

- **[INFO]** Title uses 2 different separator characters: —, | — The page title `Nu11Cyber — 网络安全研究团队 | CTF Writeup & 漏洞复盘` uses multiple separator characters (—, |). Consistent separator use is a soft signal of careful editorial control; mixed separators usually mean the title was assembled from multiple template fragments (CMS title + brand + section) without a normalization step. Pick one separator (commonly `|`, `-`, or `:`) and stick with it across the whole site.

### Content Depth (F — 10/100)

*42 words, Fairly Easy*

- **[CRITICAL]** Page has only 42 words — nearly empty — Search engines need substantive text content to understand and rank a page.
- **[INFO]** Text-to-HTML ratio is 4% — Very low ratio suggests heavy framework overhead or boilerplate.
- **[INFO]** Reading level: Fairly Easy (grade 8)
- **[WARNING]** Thin content — only 42 words

### Internal Links (A+ — 100/100)

*7 internal, 2 external*

- **[PASS]** 7 internal links (78%)
- **[PASS]** 100% of links use descriptive anchor text
- **[INFO]** 7 internal / 2 external links

### Image SEO (A+ — 100/100)

*4 images, 4 descriptive filenames*

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

### Hreflang

*0 hreflang tags*


### Hreflang URL Quality (A+ — 100/100)

*No hreflang tags on the page*

- **[PASS]** No hreflang tags on the page

### Hreflang Completeness (A+ — 100/100)

*No hreflang tags on this page -- check is N/A (single-language site or unannotated)*

- **[PASS]** No hreflang tags found -- completeness check is N/A

### Sitemap Freshness (A+ — 100/100)

*Sitemap updated within 90 days (3/3 URLs have lastmod)*

- **[PASS]** Sitemap actively maintained — newest lastmod: today

### Sitemap × Robots Consistency (A+ — 100/100)

*No sitemap-vs-robots conflicts detected*

- **[PASS]** Sitemap URLs are not blocked by robots.txt

### Sitemap Hygiene (A+ — 100/100)

*Sitemap structure / size look healthy (3 URLs, 517 bytes)*

- **[PASS]** Sitemap structure / size look healthy (3 URLs)

### Markup Quality (A+ — 100/100)

*No markup-quality issues detected*

- **[PASS]** No markup-quality issues detected

---

## Sustainability

### CO2 Per Page Load (A+ — 100/100)

*0.14g CO2 per view*

- **[PASS]** 0.14g CO2 per page view — This page transfers 0.6 MB, producing an estimated 0.14g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.00g, network 0.03g, end-user device 0.10g.
- **[INFO]** At 10,000 monthly views: 16.2 kg CO2/year — With 10,000 page views per month, this page would generate approximately 16.2 kg of CO2 annually — equivalent to charging 2025 smartphones.
- **[PASS]** Green hosting reduces data center emissions

### Green Hosting (A+ — 100/100)

*Green (both)*

- **[PASS]** Both hosting and CDN use renewable energy
- **[INFO]** Cloudflare: Verified by the Green Web Foundation
- **[INFO]** Cloudflare: 100% renewable energy for global network since 2019
- **[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 5 KB (vs 584 KB first visit). 24 of 25 resources are served from browser cache, saving 0.13g CO2 per repeat visit.
- **[INFO]** Repeat visit: 0.00g CO2 (first visit: 0.14g)

### Carbon Budget (A+ — 100/100)

*10th percentile*

- **[PASS]** 0.14g CO2 — below the sustainability target of 0.50g — Cleaner than an estimated 90% of websites analyzed. This page meets the Web Sustainability Guidelines target.
- **[INFO]** Estimated 10th percentile — Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.

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

*96% efficient*

- **[PASS]** Transfer efficiency: 96% — Only 26 KB of potential savings identified. Your page is well-optimized for size.

### Web Font Weight Variants (B — 90/100)

*No detectable Google Fonts weights*

- **[INFO]** No detectable Google Fonts weights — The analyzer detects font weights via Google Fonts URL parameters (~70% of font-using sites). Self-hosted fonts and non-Google CDN fonts aren't visible to URL-based detection. If you self-host fonts, manually audit how many @font-face weights you ship -- 2-3 weights per family is typically enough; 5+ is usually unused payload.

---

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*Generated by [BeaverCheck](https://beavercheck.com) — https://beavercheck.com/results/c9407b9b-1553-4ff8-b473-bd57ac475443*