# BeaverCheck Audit Report — https://esl-go.com

**Date:** September 21, 2026  
**URL:** https://esl-go.com  
**Overall Grade:** B (84/100)  
**Report:** https://beavercheck.com/results/dbccbcf3-7f9f-4154-9e0a-1f5d30810148

## Top Findings

1. **[CRITICAL]** Content-Security-Policy header is missing — Security > Security Headers
2. **[CRITICAL]** HSTS header is missing — Security > Security Headers
3. **[CRITICAL]** Soft 404: server returns HTTP 200 for non-existent pages — Accessibility > 404 Error Page
4. **[WARNING]** 1 publicly-accessible JavaScript source map(s) — Security > Source Map Exposure
5. **[WARNING]** 14 third-party resources (45% of weight) — Performance > Page Weight Inventory

---

## Lighthouse Scores

| Category | Score |
|----------|-------|
| Performance | 86 |
| Accessibility | 90 |
| Best Practices | 100 |
| SEO | 92 |

---

## 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
- **[WARNING]** X-Frame-Options header is missing — This header prevents clickjacking by controlling who can embed your page in a frame. Set it to DENY or SAMEORIGIN.
- **[PASS]** Referrer-Policy is properly configured
- **[WARNING]** Permissions-Policy header is missing — Controls which browser features (camera, microphone, geolocation) are allowed. Set it to restrict unused features.
- **[CRITICAL]** Content-Security-Policy header is missing — CSP is the most important header for preventing XSS attacks. See the CSP section for detailed analysis.
- **[WARNING]** Cross-Origin-Opener-Policy header is missing — COOP isolates your browsing context, preventing cross-origin side-channel attacks. Set to 'same-origin'.
- **[WARNING]** Cross-Origin-Embedder-Policy header is missing — COEP prevents loading cross-origin resources without explicit permission. Required for SharedArrayBuffer and high-resolution timers.
- **[PASS]** X-Powered-By header is not present
- **[PASS]** Server header is present without version info
- **[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 (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, 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 88 days)
- **[PASS]** Certificate chain has 3 certificates
- **[PASS]** Certificate uses modern signature algorithm
- **[PASS]** Certificate covers 1 domain(s)
- **[PASS]** Certificate is issued by a trusted CA

### Cookie Security (A+ — 100/100)

*No cookies set — no cookie security risks*

- **[PASS]** No cookies set — no cookie security risks

### Cookie Hygiene (A+ — 100/100)

*No cookies set -- cookie-hygiene check is N/A*

- **[PASS]** No cookies set

### WAF / Bot Protection (A — 90/100)

*Cloudflare*

- **[PASS]** Cloudflare detected — Detected via: cf-ray: a3e4f90ffd689794-CDG

### security.txt (B — 70/100)

*Vulnerability disclosure policy*

- **[PASS]** security.txt found
- **[WARNING]** security.txt: Missing required 'Contact' field
- **[WARNING]** security.txt: Missing required 'Expires' field (RFC 9116)

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

*All 2 new-tab link(s) carry rel=noopener*

- **[PASS]** All 2 new-tab link(s) carry rel=noopener

### CSP Inline-Style Readiness (A+ — 100/100)

*No inline style attributes -- strict CSP is feasible*

- **[PASS]** No inline style attributes detected

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

*No CSP header -- Trusted Types check is N/A*

- **[PASS]** No CSP header found -- Trusted Types check is N/A

### 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 (F — 30/100)

*0% SRI adoption (0/1 third-party resources)*

- **[WARNING]** SRI adoption: 0/1 third-party resources protected (0%) — Of 1 third-party `<script>` / `<link rel=stylesheet>` resources, 0 (0%) 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.

Missing SRI on (first 1 examples):
  - https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=Plus+Jakarta+Sans:wght@500;600;700;800&display=swap

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 — 90/100)

*1 CORS depth signal(s) detected*

- **[INFO]** CORS allows any origin (`Access-Control-Allow-Origin: *`) — Any website can fetch this URL via JavaScript and read the response body. Acceptable for genuinely public APIs (e.g. CDN-served static assets). Risky if the URL returns user-specific or session-derived data, since other origins can scrape it via the user's browser without needing credentials. Narrow Allow-Origin to a specific origin allow-list when the response is sensitive.

### Permissions-Policy Granularity (C — 60/100)

*No Permissions-Policy header set -- powerful features (camera / microphone / geolocation / payment / USB) default to allow-on-same-origin*

- **[WARNING]** Permissions-Policy header not set -- features default to allow-on-same-origin — Without a `Permissions-Policy` (or legacy `Feature-Policy`) header, every powerful browser feature defaults to its spec default policy (typically `self`). A third-party iframe injected via XSS or a misconfigured embed can still request access to the user's camera, microphone, geolocation, payment APIs, USB devices, etc. Explicitly deny features the page doesn't need:

```
Permissions-Policy: camera=(), microphone=(), geolocation=(), payment=(), usb=(), accelerometer=(), gyroscope=()
```

Features the page legitimately uses can stay enabled with `feature=(self)`.

### 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 (C — 70/100)

*1 publicly-accessible source map(s) -- full source code leaked*

- **[WARNING]** 1 publicly-accessible JavaScript source map(s) — Source maps (.js.map files) reveal the original source code -- variable names, comments, file structure, and sometimes secrets that were stripped from the bundled output. They're shipped to production by mistake almost universally; the standard fix is a build-tool config flag (Webpack: `devtool: false` or `'hidden-source-map'`; Vite: `build.sourcemap: false`; Next.js: `productionBrowserSourceMaps: false`). Once removed, audit your CDN/edge cache to evict any previously-cached .map URLs. Sample accessible URLs: https://esl-go.com/assets/index-DfSHavb5.js.map.

### 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 (F — 20/100)

*0 of 1 external resources have SRI*

- **[WARNING]** External link from fonts.googleapis.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.

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

*No known vulnerabilities*

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

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

*No exposures*

- **[PASS]** security.txt is present — good practice
- **[PASS]** No sensitive files exposed

### Email Security (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 (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 (C — 60/100)

*Origin: **

- **[INFO]** Access-Control-Allow-Origin: * — unrestricted — Any website can read this resource's response. Appropriate for public APIs but not for user-specific content.
- **[INFO]** Origin reflection not testable with a single request — Some servers reflect the request Origin header. This requires manual testing with a crafted Origin header.

---

## Performance

### Page Weight Budget (A — 92/100)

*802 KB transferred, 19 requests*

- **[PASS]** Page weighs 1.9 MB (802 KB transferred)
- **[PASS]** 19 HTTP requests
- **[INFO]** Estimated 0.16 g CO2 per page load

### Third-Party Impact (B — 70/100)

*45% third-party, 0 ms blocking*

- **[INFO]** Third-party code accounts for 45% of page weight (359.9 KiB of 802.1 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+ — 95/100)

*6 images, 0 KB saveable*

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

### JS Execution Cost (B — 80/100)

*971ms total JS execution*

- **[WARNING]** Unattributable: 344ms CPU time
- **[WARNING]** https://esl-go.com/: 305ms CPU time
- **[INFO]** https://esl-go.com/assets/index-DfSHavb5.js: 241ms CPU time
- **[INFO]** https://apis.google.com/_/scs/abc-static/_/js/k=ga...: 81ms CPU time
- **[INFO]** Third-party scripts: 81ms (8% of total)

### Font Loading (A+ — 100/100)

*1 fonts (27 KB)*

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

### JS Bundles (B — 70/100)

*4 scripts, 90 KB unused*

- **[WARNING]** https://esl-go.com/assets/index-DfSHavb5.js: 90 KB unused (54%) — Consider code splitting or tree shaking to reduce unused code.
- **[WARNING]** https://esl-go.com/assets/index-DfSHavb5.js: unminified — 29 KB could be saved
- **[INFO]** Total unused JavaScript: 90 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)

*2 hints, 0 missing preconnects*

- **[PASS]** Page uses 2 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.

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

*Document 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.

### Asset Compression

*No text asset hosts to measure*

- **[INFO]** No third-party or subdomain host served enough text assets to measure — Asset compression is measured per host, from one HEAD request against a sampled resource. Pages that serve all their JS and CSS from the document's own origin are covered by the document compression check instead.

### 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 (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: 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 — 85/100)

*19 resources · 802 KB · 90 KB savings available*

- **[PASS]** Within 1MB page-weight target
- **[INFO]** ~90 KB of savings available
- **[WARNING]** 14 third-party resources (45% 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 (A+ — 100/100)

*No render-blocking JS or document.write usage detected*

- **[PASS]** No JavaScript blocking issues detected

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

*No CSS performance depth issues detected*

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

---

## Content Quality

### Links (A — 90/100)

*13 links checked, 11 healthy, 2 broken*

- **[WARNING]** 11 of 13 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.

### Mixed Content (A+ — 100/100)

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

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

### Open Graph (A — 90/100)

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

- **[INFO]** og:title is long (63 characters) — Titles over 60 characters may be truncated in social sharing previews.
- **[INFO]** Missing og:url — The og:url tag specifies the canonical URL for the shared content.
- **[INFO]** Missing og:site_name — The og:site_name tag displays the website name in social previews.

### 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 (C — 40/100)

*No structured data (JSON-LD) found.*

- **[INFO]** No structured data (JSON-LD) found — Adding structured data helps search engines understand your content and can enable rich results.

### Rich Results Eligibility (C — 75/100)

*No JSON-LD found -- no rich-result eligibility*

- **[INFO]** No JSON-LD structured data on the page — No `<script type="application/ld+json">` blocks found. Without structured data, search engines fall back to inferring page meaning from raw HTML -- which works but doesn't unlock SERP features (rich snippets, knowledge panel, FAQ accordion, breadcrumb trail). Adding even basic JSON-LD (Organization for the site identity, BreadcrumbList for navigation context) is a low-effort SEO win.

### Image Optimization (F — 45/100)

*5 issues found across 8 images*

- **[WARNING]** 6 images significantly larger than display size — Resizing to display dimensions could save approximately 429 KB.
- **[WARNING]** 8 images missing explicit width/height — Images without dimensions cause layout shifts (CLS). Set explicit width and height attributes.
- **[INFO]** 5 below-fold images missing loading="lazy" — Lazy loading defers below-fold images, reducing initial page weight.
- **[WARNING]** All 2 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.
- **[INFO]** 5 image(s) rendered at a different aspect ratio than the source — The displayed dimensions distort the source -- CSS is forcing the image into a container at the wrong ratio, producing visible stretching or squashing. Either crop the source to match or use object-fit: cover (and accept the crop). Sample: https://images.unsplash.com/photo-1456513080510-7bf3a84b82f8?w=800&auto=format&fit=crop&q=80, https://images.unsplash.com/photo-1529156069898-49953e39b3ac?w=800&auto=format&fit=crop&q=80, https://images.unsplash.com/photo-1517486808906-6ca8b3f04846?w=800&auto=format&fit=crop&q=80 (+2 more).

### 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, 68 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: 68 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 104.21.87.202: lookup 104.21.87.202: 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 172.67.145.241: lookup 172.67.145.241: 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 2606:4700:3037::6815:57ca: lookup 2606:4700:3037::6815:57ca: 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 2606:4700:3035::ac43:91f1: lookup 2606:4700:3035::ac43:91f1: 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 25ms across 3 resolvers (spread 1ms)*

- **[PASS]** Cloudflare: 25ms
- **[PASS]** Quad9: 25ms
- **[PASS]** Google: 26ms

### 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 2606:4700:3037::6815:57ca, 2606:4700:3035::ac43:91f1

### Crawlability (C — 65/100)

*robots.txt present, sitemap with 0 URLs*

- **[PASS]** robots.txt is present
- **[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]** www/non-www redirect configured correctly (preferred: non-www)
- **[PASS]** HTTP correctly redirects to HTTPS permanently

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

*esl-go.com — via Cloudflare, Inc., 1 days old*

- **[PASS]** Domain registered until Sep 19, 2027 (1 years remaining)
- **[INFO]** Domain is only 1 days 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: Cloudflare, 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 (A — 90/100)

*No consent signals detected*

- **[INFO]** Privacy policy may exist but is not linked from the page — No privacy-policy link was found in the rendered page, but https://esl-go.com/privacy responded. Verify the page is real and link it from the footer -- an unlinked policy is hard for visitors to find, and a scanner cannot confirm one exists from the URL alone.
- **[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.

### 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 (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. Detection is by link URL and anchor text, in a limited set of languages, so this is an unconfirmed absence.

### GDPR Article 13 Disclosures (F — 25/100)

*0 / 8 Art. 13 categories matched in homepage body*

- **[WARNING]** GDPR Article 13 disclosure coverage: 0 / 8 categories — Scanned the homepage body text AND the linked /privacy page for GDPR Article 13 disclosures. Matched 0 of 8 categories: . Missing: 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, 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+ — 100/100)

*No third-party trackers detected*

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

### 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 cookies on the page*

- **[PASS]** No cookies set on the page response

### 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 (F — 0/100)

*0 of 7 expected legal pages detected*

- **[INFO]** Privacy Policy may exist but is not linked — No link to a Privacy Policy was found on the page, but https://esl-go.com/privacy responded. Verify the page is real and link it from the footer -- an unlinked policy is hard for visitors (and regulators) to find.
- **[WARNING]** Terms of Service not detected — No link matching common Terms of Service URL patterns or link text was found. Most websites are expected to have a Terms of Service, especially those collecting user data.
- **[INFO]** Cookie Policy not detected — No link matching common Cookie Policy URL patterns or link text was found. Most websites are expected to have a Cookie Policy, especially those collecting user data.
- **[INFO]** Accessibility Statement not detected — No link matching common Accessibility Statement URL patterns or link text was found. Most websites are expected to have a Accessibility Statement, especially those collecting user data.
- **[INFO]** DMCA / Copyright Notice not detected — No link matching common DMCA / Copyright Notice URL patterns or link text was found. Most websites are expected to have a DMCA / Copyright Notice, especially those collecting user data.
- **[INFO]** Refund / Returns Policy not detected — No link matching common Refund / Returns Policy URL patterns or link text was found. Most websites are expected to have a Refund / Returns Policy, especially those collecting user data.
- **[INFO]** Acceptable Use Policy not detected — No link matching common Acceptable Use Policy URL patterns or link text was found. Most websites are expected to have a Acceptable Use Policy, especially those collecting user data.

### Copyright Notice (A+ — 100/100)

*© 2026 Elevate Listening Lessons*

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

### Regulatory Indicators

*0 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]** No specific regulatory indicators detected — No strong signals for GDPR, CCPA, ADA, PCI, HIPAA, or COPPA were found. This does not mean these regulations don't apply — it means we didn't detect common technical indicators.

### 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)

*Document on Cloudflare; assets also on imgix*

- **[PASS]** Document is served via Cloudflare CDN (edge: CDG)
- **[INFO]** CDN cache status: DYNAMIC
- **[PASS]** Assets on imgix: images.unsplash.com (assets: 6), cache HIT, HIT

### 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]** 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)

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

*Health endpoint at https://esl-go.com/health (HTTP 200)*

- **[PASS]** Public health endpoint at https://esl-go.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)

*4 landmarks*

- **[PASS]** <main> landmark present
- **[PASS]** 1 <nav> landmark(s) found
- **[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)

*14 headings, 1 skip(s)*

- **[PASS]** Single H1 present
- **[WARNING]** Heading level skipped: H2 → H4 (missing H3) — Skipping heading levels breaks the document outline. Screen readers may interpret missing levels as structural errors.

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

*All 14 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 8 images OK*

- **[PASS]** 8 image(s) with good alt text

### Form Accessibility (A — 92/100)

*1 of 1 controls have issues*

- **[WARNING]** 1 control(s) rely on placeholder only — Placeholder text disappears on focus and is not a reliable label.

### Link & Button Quality (A — 94/100)

*3 links, 17 buttons — all OK*

- **[WARNING]** 2 link(s) open in new tab without warning — Add '(opens in new tab)' to link text or aria-label.
- **[PASS]** 1 link(s) with descriptive text

### Form Input Types (A+ — 95/100)

*1 input(s) using type=text where a specific type would help*

- **[INFO]** Input "Search grammar or topic..." should use type="search" (currently type="text") — Field name "Search grammar or topic..." suggests type="search". Wrong type loses mobile keyboard hints, browser autofill, and free format validation. Change to <input type="search">.

### 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 "en"*

- **[PASS]** <html lang="en"> 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 (C — 75/100)

*73% of visible text renders at >= 12 CSS px (24 below threshold)*

- **[WARNING]** 24 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 ("By Elevate ESL Lessons"); <span> 10.0px ("Tenses & Structure"); <span> 11.0px ("lessons"); <p> 11.0px ("Targeted listening for present, past, fu..."); <span> 10.0px ("Idiomatic English").

---

## 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 (F — 30/100)

*2 icon(s) detected*

- **[PASS]** favicon.ico present at site root
- **[PASS]** HTML icon links detected
- **[INFO]** No apple-touch-icon detected — iOS devices use this when users add your site to their home screen. Add <link rel='apple-touch-icon' sizes='180x180' href='/apple-touch-icon.png'>.

### Web Manifest (F — 30/100)

*Invalid JSON*

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

### PWA Depth (A+ — 100/100)

*No PWA depth issues detected*

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

### 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 (F — 15/100)

*No navigation patterns*

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

### 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 — 90/100)

*Title: 96 chars*

- **[PASS]** Page title is set
- **[WARNING]** Title is 96 characters — will be truncated in search results
- **[PASS]** Meta description length (114 chars) is optimal
- **[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 `Elevate Listening Lessons — Free Grammar-Based English Pract...` 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 (B — 80/100)

*565 words, Very Difficult*

- **[PASS]** Page has 565 words of content
- **[INFO]** Reading level: Very Difficult (grade 17)

### Internal Links (A+ — 100/100)

*1 internal, 2 external*

- **[PASS]** 1 internal links (33%)
- **[PASS]** 100% of links use descriptive anchor text
- **[INFO]** 1 internal / 2 external links

### Image SEO (A+ — 100/100)

*8 images, 8 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 (C — 70/100)

*Sitemap exists but no <lastmod> entries*

- **[INFO]** Sitemap has no <lastmod> entries — Without lastmod, Google can't tell which URLs have changed since the last crawl -- it falls back to crawling everything periodically. Adding lastmod (date or ISO 8601 timestamp) on each <url> entry signals freshness so the crawler prioritizes recently-modified pages.

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

*No sitemap-vs-robots conflicts detected*

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

### Sitemap Hygiene (B — 75/100)

*1 hygiene issue(s) on a 0-URL sitemap*

- **[WARNING]** Sitemap is empty -- 0 URLs listed — The sitemap file is reachable and parses as valid XML, but contains no `<url>` entries. Common causes: a templated sitemap that didn't iterate the URL set during build, a static placeholder shipped to production, or a CMS that lost its URL index. Search engines fetch and discard empty sitemaps.

### Markup Quality (A+ — 100/100)

*No markup-quality issues detected*

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

---

## Sustainability

### CO2 Per Page Load (A+ — 100/100)

*0.19g CO2 per view*

- **[PASS]** 0.19g CO2 per page view — This page transfers 0.8 MB, producing an estimated 0.19g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.00g, network 0.04g, end-user device 0.14g.
- **[INFO]** At 10,000 monthly views: 22.2 kg CO2/year — With 10,000 page views per month, this page would generate approximately 22.2 kg of CO2 annually — equivalent to charging 2781 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)

*100% cached*

- **[PASS]** 100% reduction on repeat visits — Returning visitors download only 1 KB (vs 802 KB first visit). 17 of 19 resources are served from browser cache, saving 0.19g CO2 per repeat visit.
- **[INFO]** Repeat visit: 0.00g CO2 (first visit: 0.19g)

### Carbon Budget (A+ — 100/100)

*10th percentile*

- **[PASS]** 0.19g 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 (B — 80/100)

*89% efficient*

- **[INFO]** Transfer efficiency: 89% — An estimated 89 KB (11%) could be eliminated: 0 KB via better compression, 0 KB via modern image formats, 89 KB of unused JavaScript. This wasted data produces 0.02g of unnecessary CO2 per page view.

### Web Font Weight Variants (C — 70/100)

*9 font weights loaded across 2 famil(y/ies)*

- **[WARNING]** 9 font weights loaded -- likely 100+ KB of unused payload — Loading 9 font weights typically transfers 200-400 KB just for fonts. Most pages legitimately use 2-3 weights (regular + bold, maybe medium). Audit which weights your stylesheet actually applies and trim the Google Fonts URL accordingly. Affected families: Inter, Plus Jakarta Sans.

---

---

*Generated by [BeaverCheck](https://beavercheck.com) — https://beavercheck.com/results/dbccbcf3-7f9f-4154-9e0a-1f5d30810148*