# BeaverCheck Audit Report — https://ailearnhub.net

**Date:** August 26, 2026  
**URL:** https://ailearnhub.net  
**Overall Grade:** B (86/100)  
**Report:** https://beavercheck.com/results/d7e822f6-a928-4bad-8d83-9cd289ed97d8

## Top Findings

1. **[CRITICAL]** 'unsafe-inline' found in script source — Security > Content Security Policy
2. **[CRITICAL]** 1 control(s) without accessible label — Accessibility > Form Accessibility
3. **[CRITICAL]** Missing <html lang> attribute (WCAG 3.1.1) — Accessibility > Document Language
4. **[WARNING]** 1 render-blocking <script src> tag(s) without async/defer — Performance > JavaScript Blocking
5. **[WARNING]** 18 inline style attribute(s) detected — Security > CSP Inline-Style Readiness

---

## Lighthouse Scores

| Category | Score |
|----------|-------|
| Performance | 56 |
| Accessibility | 90 |
| Best Practices | 92 |
| SEO | 100 |

---

## Security

### Security Headers (C — 55/100)

*4 of 10 headers properly configured*

- **[PASS]** Strict-Transport-Security is properly configured
- **[WARNING]** X-Content-Type-Options has unexpected value
- **[WARNING]** X-Frame-Options has unexpected value
- **[WARNING]** Referrer-Policy has a weak value
- **[PASS]** Permissions-Policy is set
- **[PASS]** Content-Security-Policy is present
- **[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.
- **[WARNING]** X-Powered-By header reveals technology stack — This header discloses server technology (e.g. Express, PHP), helping attackers target known vulnerabilities. Remove it.
- **[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 (B — 80/100)

*8 of 10 CSP checks passed*

- **[INFO]** Raw CSP policy
- **[PASS]** default-src directive is set
- **[CRITICAL]** 'unsafe-inline' found in script source — 'unsafe-inline' allows inline <script> tags, defeating CSP against XSS. Remove it and use nonces or hashes instead.
- **[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

### TLS & Certificates (A+ — 100/100)

*TLS 1.3, 8 checks passed*

- **[PASS]** TLS 1.3 is used
- **[PASS]** Strong cipher suite is used
- **[PASS]** HTTP/2 is negotiated
- **[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 69 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+ — 95/100)

*1 cookies analyzed, 2 checks passed*

- **[PASS]** Cookie 'ailearnhub_locale' has the Secure flag
- **[WARNING]** Cookie 'ailearnhub_locale' is missing the HttpOnly flag — Without HttpOnly, this cookie can be accessed by JavaScript, making it vulnerable to XSS-based theft.
- **[PASS]** Cookie 'ailearnhub_locale' has SameSite=Lax

### 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: a3147c4b4d62998c-CDG

### security.txt (C — 60/100)

*No security.txt file found*

- **[INFO]** No security.txt file found — security.txt (RFC 9116) provides a standardized way for security researchers to report vulnerabilities. Create one at /.well-known/security.txt with at least a Contact field.

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

*All 3 new-tab link(s) carry rel=noopener*

- **[PASS]** All 3 new-tab link(s) carry rel=noopener

### CSP Inline-Style Readiness (C — 75/100)

*18 inline style attribute(s) detected*

- **[WARNING]** 18 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. 18 inline style(s) is moderate. Affected element types include: img. 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) (B — 95/100)

*Trusted Types not enabled*

- **[INFO]** Trusted Types not enabled — Trusted Types (CSP3) is a Chrome 83+ defense that requires DOM-XSS sinks (innerHTML, document.write, eval, ...) to receive a typed-and-sanitized value rather than a raw string. Adding `Content-Security-Policy: require-trusted-types-for 'script'; trusted-types default` neutralizes most DOM-XSS even when a payload reaches a sink. Adoption is currently ~0.1% of pages so this is informational; a roll-out usually starts in report-only mode.

### 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)

*Page has no third-party scripts or stylesheets -- SRI not applicable*

- **[PASS]** No third-party scripts or stylesheets to protect with SRI

### 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 (D — 50/100)

*30% high-risk feature coverage (3/10)*

- **[WARNING]** Permissions-Policy covers 3/10 high-risk features (30%) — The Permissions-Policy header explicitly declares policies for 3/10 high-risk features.

Covered: camera, microphone, geolocation

Not declared (default-allow): payment, usb, serial, midi, accelerometer, gyroscope, 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 `strict-origin-when-cross-origin` (modern default -- full URL same-origin, origin-only cross-origin)*

- **[PASS]** Referrer-Policy: `strict-origin-when-cross-origin` -- modern default -- full URL same-origin, origin-only cross-origin — The modern browser default (Chrome 85+, Firefox 87+, Safari 15+). Full URL Referer on same-origin; origin only on cross-origin; no Referer on HTTPS-to-HTTP downgrade. Privacy-safe and breaks no analytics. The recommended explicit value.

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

*No source maps accessible (probed 10 candidate URL(s))*

- **[PASS]** No source maps accessible across 10 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)

*No external resources*

- **[PASS]** No external resources to protect

### JS Library Vulnerabilities (A+ — 100/100)

*No known vulnerabilities*

- **[PASS]** No known JavaScript library vulnerabilities detected

### Information Leakage (A+ — 100/100)

*No exposures*

- **[INFO]** No security.txt found — Consider adding a security.txt at /.well-known/security.txt.
- **[PASS]** No sensitive files exposed

### Email Security (F — 12/100)

*no DMARC, SPF: ~all*

- **[WARNING]** No DMARC record found — Without DMARC, email receivers have no policy for handling authentication failures. Add a TXT record at _dmarc.<domain> starting with v=DMARC1.
- **[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).
- **[INFO]** No DKIM detected via common selectors — DKIM signs outbound mail to prove origin. We probed common selectors (default, google, selector1, etc.) without finding a record. If you use a non-standard selector, this is a false negative.
- **[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 — 90/100)

*6 directives, 2 missing*

- **[PASS]** camera=() — blocked for all origins
- **[PASS]** microphone=() — blocked for all origins
- **[PASS]** geolocation=() — blocked for all origins
- **[PASS]** camera=() — blocked for all origins
- **[PASS]** microphone=() — blocked for all origins
- **[PASS]** geolocation=() — blocked for all origins
- **[INFO]** payment not restricted — Consider adding payment=() to block payment access from embedded content.
- **[INFO]** usb not restricted — Consider adding usb=() to block usb access from embedded content.

### CORS Configuration (B — 80/100)

*No CORS headers*

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

---

## Performance

### Page Weight Budget (D — 42/100)

*2.5 MB transferred, 76 requests*

- **[WARNING]** Page weighs 6.0 MB (2.5 MB transferred)
- **[WARNING]** JavaScript is 1.1 MB — consider code splitting or lazy loading — Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
- **[INFO]** 76 HTTP requests
- **[INFO]** Estimated 0.52 g CO2 per page load

### Third-Party Impact (A+ — 100/100)

*11% third-party, 0 ms blocking*

- **[INFO]** Third-party code accounts for 11% of page weight (269.7 KiB of 2.5 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)

*5 images, 0 KB saveable*

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

### JS Execution Cost (F — 20/100)

*21910ms total JS execution*

- **[WARNING]** https://ailearnhub.net/: 13716ms CPU time
- **[WARNING]** https://ailearnhub.net/_next/static/chunks/8319-55...: 5343ms CPU time
- **[WARNING]** Unattributable: 1295ms CPU time
- **[WARNING]** https://ailearnhub.net/_next/static/chunks/3a1933e...: 395ms CPU time
- **[WARNING]** https://ailearnhub.net/_next/static/chunks/857-77f...: 284ms CPU time
- **[INFO]** Third-party scripts: 275ms (1% of total)

### Font Loading (A+ — 100/100)

*2 fonts (138 KB)*

- **[INFO]** 2 font(s) use font-display: swap (FOUT risk but functional)

### JS Bundles (D — 40/100)

*48 scripts, 472 KB unused*

- **[WARNING]** https://ailearnhub.net/_next/static/chunks/857-77f...: 156 KB unused (80%) — Consider code splitting or tree shaking to reduce unused code.
- **[WARNING]** https://accounts.google.com/gsi/client: 72 KB unused (75%) — Consider code splitting or tree shaking to reduce unused code.
- **[WARNING]** https://www.googletagmanager.com/gtag/js?id=G-5WTT...: 70 KB unused (42%) — Consider code splitting or tree shaking to reduce unused code.
- **[WARNING]** https://ailearnhub.net/_next/static/chunks/2762-70...: 47 KB unused (68%) — Consider code splitting or tree shaking to reduce unused code.
- **[WARNING]** https://ailearnhub.net/_next/static/chunks/6266-90...: 30 KB unused (96%) — Consider code splitting or tree shaking to reduce unused code.
- **[INFO]** Total unused JavaScript: 472 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)

*7 hints, 0 missing preconnects*

- **[PASS]** Page uses 7 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 uses no-store -- correct for sensitive/dynamic content*

- **[PASS]** Main HTML uses no-store -- correct for sensitive/dynamic content

### Server-Timing Observability (B — 85/100)

*No Server-Timing header found*

- **[INFO]** No Server-Timing header found — Server-Timing exposes backend timing breakdowns to browser DevTools (e.g., `db: 45ms; render: 120ms; cache: 2ms`). Useful for diagnosing slow pages without backend log access. Most modern frameworks (Next.js, Cloudflare Workers, Fastly) emit it automatically; absence on a managed platform usually means telemetry headers are stripped at the edge.

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

*2 server-response signal(s) detected*

- **[PASS]** `Vary` header declared: Cookie — 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 (D — 50/100)

*76 resources · 2.5 MB · 472 KB savings available*

- **[WARNING]** Page weight 2.5 MB exceeds 1 MB target by 1.5 MB
- **[INFO]** ~472 KB of savings available
- **[INFO]** 6 third-party resources (11% 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 21.9 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 — 93/100)

*74 links checked, 72 healthy, 1 broken*

- **[WARNING]** 72 of 74 links are healthy
- **[WARNING]** Broken link: https://www.googletagmanager.com — Found in <link href>. Returns HTTP 404.
- **[INFO]** Long redirect chain: https://chromewebstore.google.com/detail/ailear... (3 hops)

### 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+ — 100/100)

*OG image dimensions and Twitter card configuration look healthy*

- **[PASS]** OG/Twitter Card depth is clean -- dimensions, card type, and inheritance all valid

### Structured Data (A+ — 100/100)

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

- **[INFO]** Missing recommended property "sameAs" for Organization — Adding "sameAs" can improve how search engines display your content.
- **[INFO]** Missing recommended property "description" for WebSite — Adding "description" can improve how search engines display your content.
- **[INFO]** Missing recommended property "potentialAction" for WebSite — Adding "potentialAction" can improve how search engines display your content.
- **[PASS]** Custom type "SoftwareApplication" — unable to validate specific properties
- **[PASS]** Custom type "HowTo" — unable to validate specific properties
- **[PASS]** 5 JSON-LD blocks found

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

*5 JSON-LD block(s) declaring 5 schema type(s)*

- **[PASS]** 5 rich-result schema type(s) declared — Inventory of structured-data types on the page (each may unlock a different SERP feature):

FAQPage, HowTo, Organization, SoftwareApplication, WebSite

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 (F — 40/100)

*6 issues found across 21 images*

- **[WARNING]** 5 images significantly larger than display size — Resizing to display dimensions could save approximately 999 KB.
- **[WARNING]** 13 images missing explicit width/height — Images without dimensions cause layout shifts (CLS). Set explicit width and height attributes.
- **[INFO]** 1 below-fold images missing loading="lazy" — Lazy loading defers below-fold images, reducing initial page weight.
- **[INFO]** 18 of 21 images use legacy formats
- **[WARNING]** Total image weight: 1818 KB (1.8 MB) — Consider compressing images, using modern formats, and serving appropriately sized images.
- **[INFO]** 1 image(s) wider than 400px without srcset (no responsive serving) — These images deliver the same asset to every viewport (mobile, tablet, retina). Adding srcset / <picture> lets the browser pick a viewport-appropriate variant and typically saves 40-70% of bytes on mobile. Sample: https://ailearnhub.net/images/what-why-how/what.webp.

### 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, 114 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: 114 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 188.114.96.2: lookup 188.114.96.2: 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 188.114.97.2: lookup 188.114.97.2: 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 2a06:98c1:3120::2: lookup 2a06:98c1:3120::2: 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 2a06:98c1:3121::2: lookup 2a06:98c1:3121::2: 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 38ms across 3 resolvers (spread 27ms)*

- **[PASS]** Google: 28ms
- **[PASS]** Cloudflare: 33ms
- **[PASS]** Quad9: 55ms

### Redirect Chain (A+ — 100/100)

*No redirects — direct access*

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

### IPv6 Readiness (A+ — 100/100)

*IPv6 reachable (17 ms)*

- **[PASS]** IPv6 is configured and reachable at 2a06:98c1:3120::2, 2a06:98c1:3121::2

### Crawlability (A+ — 100/100)

*robots.txt present, sitemap with 257 URLs*

- **[PASS]** robots.txt is present
- **[PASS]** sitemap.xml is present
- **[PASS]** sitemap.xml is valid XML
- **[PASS]** sitemap.xml contains 257 entries
- **[PASS]** robots.txt references sitemap

### URL Variants (D — 50/100)

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

- **[CRITICAL]** Both www and non-www versions serve content
- **[CRITICAL]** HTTP version does not redirect to HTTPS

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

*ailearnhub.net — via NameCheap, Inc., 4 months old*

- **[PASS]** Domain registered until Apr 10, 2027 (7 months remaining)
- **[INFO]** Domain is only 4 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: NameCheap, 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): ailearnhub_locale
- **[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 (F — 5/100)

*Missing <html lang>*

- **[WARNING]** <html lang> attribute is missing — The lang attribute on <html> is required for screen readers and WCAG 3.1.1 compliance.
- **[INFO]** No Content-Language HTTP header
- **[PASS]** Language signals are consistent

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

*All 15 hreflang tag(s) look correct*

- **[PASS]** All 15 hreflang tag(s) look correct

### 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 (B — 70/100)

*No accessibility statement detected*

- **[WARNING]** No accessibility statement detected — Sites are increasingly expected to publish an accessibility statement. Required by EU Web Accessibility Directive 2016/2102 for public-sector bodies; recommended best practice elsewhere. Common URLs: /accessibility, /accessibility-statement, /a11y.

### GDPR Article 13 Disclosures (F — 12/100)

*1 / 8 Art. 13 categories matched in homepage body*

- **[WARNING]** GDPR Article 13 disclosure coverage: 1 / 8 categories — Scanned the homepage body text AND the linked /privacy page for GDPR Article 13 disclosures. Matched 1 of 8 categories: Data subject rights (access, erasure, rectification, etc.). Missing: Data Protection Officer contact (where applicable), Data retention period, Identity / contact details of the data controller, International data transfers, Legal basis for processing, Recipients of personal data, Right to lodge a complaint with a supervisory authority. 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+ — 95/100)

*1 trackers detected*

- **[INFO]** 1 third-party trackers detected — Found 1 analytics, 0 advertising, 0 marketing, 0 tag manager, 0 session-replay, 0 heatmap trackers.

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

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

- **[INFO]** 1 cookie(s) could not be classified
- **[INFO]** 1 third-party tracker(s) detected on page

### 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) (A+ — 100/100)

*No SameSite=None cookies -- no cross-site travel surface*

- **[PASS]** No cookies opted in to cross-site travel (SameSite=None)

### 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 (C — 60/100)

*2 of 7 expected legal pages detected*

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

### Copyright Notice (A+ — 100/100)

*© 2026 AILearnHub*

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

### 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]** 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

*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 (B — 80/100)

*Cloudflare*

- **[PASS]** Site is served via Cloudflare CDN (edge: CDG)

### HTTP Caching (D — 40/100)

*no-store (uncacheable)*

- **[INFO]** Cache-Control: no-store prevents all caching — Intentional for dynamic content, but increases server load for every page view.
- **[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+ — 100/100)

*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.
- **[PASS]** HSTS enabled (includeSubDomains, preload)
- **[PASS]** HSTS preload enabled
- **[PASS]** TLS 1.3 in use (fastest handshake, 1-RTT)

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

*Health endpoint at https://ailearnhub.net/api/health (HTTP 200)*

- **[PASS]** Public health endpoint at https://ailearnhub.net/api/health

### CDN Cache Observability (B — 85/100)

*No CDN cache-status headers in the response*

- **[INFO]** No CDN cache-status headers in the response — Without an X-Cache / CF-Cache-Status / X-Vercel-Cache / Age header, you can't tell from outside whether a request hit the cache or went to origin. Operationally important: enables debugging stale-content reports and verifying cache rules. Most managed CDN platforms emit at least one of these by default; absence often means the platform's diagnostic headers are stripped at an upstream proxy.

---

## Accessibility

### Landmark Structure (B — 80/100)

*5 landmarks*

- **[PASS]** <main> landmark present
- **[PASS]** 1 <nav> landmark(s) found
- **[INFO]** No banner (header) landmark
- **[WARNING]** Skip navigation link is missing (WCAG 2.4.1) — Add a skip link as the first focusable element so keyboard users can bypass repeated navigation.

### Heading Hierarchy (A — 85/100)

*52 headings, 1 skip(s)*

- **[PASS]** Single H1 present
- **[WARNING]** Heading level skipped: H1 → H3 (missing H2) — Skipping heading levels breaks the document outline. Screen readers may interpret missing levels as structural errors.

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

*All 52 heading(s) have substantive, well-formed text*

- **[PASS]** Heading text quality is clean -- no placeholder, length, or styling issues

### Alt Text Quality (A+ — 100/100)

*All 20 images OK*

- **[PASS]** 20 image(s) with good alt text

### Form Accessibility (A — 85/100)

*1 of 3 controls have issues*

- **[CRITICAL]** 1 control(s) without accessible label — Form controls need a <label>, aria-label, or aria-labelledby for screen readers.
- **[PASS]** 2 control(s) properly labeled

### Link & Button Quality (A — 91/100)

*20 links, 14 buttons — all OK*

- **[WARNING]** 3 link(s) open in new tab without warning — Add '(opens in new tab)' to link text or aria-label.
- **[PASS]** 17 link(s) with descriptive text

### Form Input Types (A+ — 100/100)

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

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

### Form Input Quality (A+ — 100/100)

*3 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 (F — 40/100)

*Missing <html lang> attribute (WCAG 3.1.1)*

- **[CRITICAL]** Missing <html lang> attribute (WCAG 3.1.1) — Without `<html lang="...">`, screen readers default to the user's system language even when reading content in a different one -- words get pronounced wrong (English text read with French phonetics, etc.). Add a BCP-47 language tag to the <html> root element.

### 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 (C — 75/100)

*85% of visible text renders at >= 12 CSS px (42 below threshold)*

- **[WARNING]** 42 text node(s) render below 12 CSS pixels on mobile — Mobile browsers default the root font-size to 16 px; text below ~ 12 px (75% of root) is hard to read without zooming. WCAG 1.4.4 (Resize Text) requires the page to support 200% zoom without loss of functionality -- which most layouts handle, but small base text still costs readability and conversion. Audit which selectors set sizes below 12 px (often footers, fine print, table cells) and bump them to 14-16 px or use rem units that scale with user preferences. Examples: <span> 10.0px ("Time Left:"); <span> 10.0px ("Get Deal Now"); <div> 11.0px ("Expert tutor + multi-discipline peers"); <div> 11.0px ("Automatic knowledge path building"); <div> 11.0px ("Whiteboard lessons + practice checks").

---

## UX

### 404 Error Page (F — 35/100)

*HTTP 404, bare page*

- **[PASS]** Correct 404 status code returned
- **[WARNING]** Bare server default 404 page — The 404 page has no custom styling. Users hitting a broken link see a generic error with no way to navigate back. Add a custom 404 page with your site navigation and a search bar.

### Favicon & Branding (B — 80/100)

*7 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+ — 100/100)

*PWA-ready*

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

### PWA Depth (A+ — 95/100)

*1 PWA signal(s) surfaced*

- **[INFO]** Manifest has no maskable icon — Android 12+ Adaptive Icons crop non-maskable icons to a circle or squircle -- frequently hiding important parts of the logo. Add at least one icon entry with `"purpose": "maskable"` (or `"any maskable"`) and a maskable-aware design (16% safe-zone padding around the inner mark).

### Dark Mode Support (B — 70/100)

*Dark mode detected*

- **[PASS]** prefers-color-scheme CSS detected in inline styles
- **[INFO]** Detection limited to meta tags and inline styles — External CSS files may contain prefers-color-scheme rules not visible to this scan.

### Print Stylesheet (D — 40/100)

*No print styles*

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

### Navigation UX (F — 20/100)

*No navigation patterns*

- **[PASS]** 1 navigation landmark(s) detected
- **[PASS]** Hamburger menu detected (responsive design)
- **[INFO]** No breadcrumbs, search, or skip link detected — These navigation aids help users orient themselves and find content efficiently, especially on large sites.

### Mobile UX Depth (A+ — 97/100)

*1 mobile-depth signal(s) detected*

- **[INFO]** No `<meta name="theme-color">` -- browser chrome falls back to default — Without `theme-color`, Android Chrome's status bar and iOS Safari's toolbar fall back to a generic gray. Adding a single hex color in `<meta name="theme-color" content="#0066cc">` tints them to your brand color across all mobile browsers.

---

## 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 optimized*

- **[PASS]** Page title is set
- **[PASS]** Title length (54 chars) is optimal
- **[INFO]** Meta description is 171 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 `AILearnHub: Turn Any Topic into an AI-Generated Lesson` 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 (A — 85/100)

*2116 words, Difficult*

- **[PASS]** Page has 2116 words — good depth for search engines
- **[INFO]** Text-to-HTML ratio is 4% — Very low ratio suggests heavy framework overhead or boilerplate.
- **[INFO]** Reading level: Difficult (grade 11)

### Internal Links (A+ — 100/100)

*17 internal, 3 external*

- **[PASS]** 17 internal links (85%)
- **[PASS]** 100% of links use descriptive anchor text
- **[INFO]** 17 internal / 3 external links

### Image SEO (A+ — 100/100)

*20 images, 20 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 (257/257 URLs have lastmod)*

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

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

*No sitemap-vs-robots conflicts in the URL sample*

- **[PASS]** All 5 sampled sitemap URLs are crawlable per robots.txt

### Sitemap Hygiene (A+ — 100/100)

*Sitemap structure / size look healthy (257 URLs, 42 KB)*

- **[PASS]** Sitemap structure / size look healthy (257 URLs)

### Markup Quality (A+ — 100/100)

*No markup-quality issues detected*

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

---

## Sustainability

### CO2 Per Page Load (B — 70/100)

*0.59g CO2 per view*

- **[INFO]** 0.59g CO2 per page view — This page transfers 2.5 MB, producing an estimated 0.59g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.01g, network 0.12g, end-user device 0.45g.
- **[INFO]** At 10,000 monthly views: 70.6 kg CO2/year — With 10,000 page views per month, this page would generate approximately 70.6 kg of CO2 annually — equivalent to charging 8820 smartphones.
- **[PASS]** Green hosting reduces data center emissions

### Green Hosting (A+ — 100/100)

*Green (both)*

- **[PASS]** Both hosting and CDN use renewable energy
- **[INFO]** Next.js: 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)

*98% cached*

- **[PASS]** 98% reduction on repeat visits — Returning visitors download only 55 KB (vs 2544 KB first visit). 75 of 76 resources are served from browser cache, saving 0.58g CO2 per repeat visit.
- **[INFO]** Repeat visit: 0.01g CO2 (first visit: 0.59g)

### Carbon Budget (B — 70/100)

*48th percentile*

- **[INFO]** 0.59g CO2 — below the median website (0.60g) — Better than an estimated 52% of websites, but above the sustainability target of 0.50g. Reducing page weight would help reach the target.
- **[INFO]** Estimated 48th percentile — Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.

### Transfer Efficiency (B — 80/100)

*81% efficient*

- **[INFO]** Transfer efficiency: 81% — An estimated 471 KB (19%) could be eliminated: 0 KB via better compression, 0 KB via modern image formats, 471 KB of unused JavaScript. This wasted data produces 0.11g of unnecessary CO2 per page view.

### 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.

---

---

*Generated by [BeaverCheck](https://beavercheck.com) — https://beavercheck.com/results/d7e822f6-a928-4bad-8d83-9cd289ed97d8*
