Fx

Paid WHOIS / RDAP lookup via rdap.org

Paid URL text summary via x402

Paid llms.txt parser via x402

Paid URL metadata extraction via x402

Paid DKIM (RFC 6376) selector lookup

Paid keyword extraction via x402

Paid HTTP redirect chain + final URL via x402

Paid DNS record lookup (A/AAAA/MX/NS/TXT/CNAME) via Cloudflare DoH

Paid HTTP security header audit (CSP/HSTS/X-Frame-Options/etc) via x402

Paid robots.txt audit via x402

Paid Open Graph + Twitter Card via x402

Paid AI bot policy audit via x402

Paid TLS certificate audit (issuer, expiry, signature alg, SAN list) via x402

Paid sitemap.xml discovery + URL extraction via x402

Paid JSON-LD structured data extraction via x402

Paid tech-stack fingerprint (frameworks, libraries, server, CDN, fonts, analytics) via x402

Paid hyperlink extraction via x402

Paid page carbon footprint (bytes, gzip ratio, CO2 per visit, A-F grade) via x402

Paid page load performance (TTFB, size, compression, redirects) via x402

Paid email + contact + social extraction via x402

Paid script-inventory extractor (x402 $0.001) - GET ?url=<URL> enumerates every <script src> with integrity/crossorigin/type attributes and reports same-origin vs third-party breakdown. via x402

Paid HTML form extraction via x402

Paid readability metrics (cycle 92 gating fix)

Paid RSS/Atom feed discovery + parse via x402

Paid Content-Security-Policy parser (cycle 92 gating fix)

Paid hreflang + x-default multilingual SEO audit (cycle 92 gating fix)

Paid GDPR/CCPA cookie consent audit (CMP detection, cookie categorization, security attrs) via x402

Paid Permissions-Policy header audit (browser feature gating, high-risk feature detection, source allowlist) via x402

Paid meta-refresh + JS-redirect detector (cycle 92 gating fix)

Paid Set-Cookie security-attribute audit (per-cookie Secure/HttpOnly/SameSite/Max-Age/Size/Priority/Partitioned + issue flags + A-F grade) via x402

Paid HTML heading-hierarchy audit (h1-h6 counts, sequence validation, multiple-h1 detection, missing-h1, empty headings, aria-hidden flags, A-F grade) via x402

Paid WCAG-light accessibility audit (html lang, alt-text coverage, label/aria-label on inputs, ARIA roles, table th scope, button accessible name, tabindex, autocomplete + A-F grade) via x402

Paid full llms.txt + llms-full.txt fetcher with parsed section breakdown (H1 title, per-section URL + bullet count) for AI-agent context loading via x402

Paid comprehensive SEO audit (title length, meta description, canonical, robots, viewport, OG/Twitter, JSON-LD, hreflang, favicon, sitemap + A-F grade) via x402

Paid TLS handshake + certificate audit (TLS version, cipher, ALPN, cert chain, days-to-expire, key type/size, SAN coverage, sig algorithm, A-F grade) via x402

Paid privacy-signal detection audit — DNT/GPC/AI-opt-out meta tags, JS-side navigator.doNotTrack + globalPrivacyControl + Sec-GPC detection, privacy-policy link check, A-F grade via x402

Paid top anchor-text frequencies + internal/external classification + nofollow/sponsored/ugc counts + empty-anchor + generic anchor-text detection, A-F grade via x402

Paid third-party embed/iframe/object inventory — YouTube/Vimeo/Wistia/GoogleMaps/Stripe/Calendly/Typeform/Spotify/Soundcloud/Twitch/Figma/Canva/Loom/Twitter/IG/CodePen/JSFiddle/CodeSandbox/Replit/SlideShare/SpeakerDeck/Issuu/Miro/Airtable detection, sandbox/allow/loading/referrerpolicy capture, A-F grade via x402

Paid comprehensive favicon + app-icon extractor (link rel=icon/apple-touch-icon/mask-icon, manifest.json icons, msapplication-TileImage, og:image, Twitter image) via x402

Paid outbound link/redirect health audit (dead-link probe, redirect chain depth, mixed-content detection, broken in-page anchors, invalid mailto, A-F grade) via x402

Paid <img>/<picture>/<source>/<svg>/<canvas>/<video> inventory with first/third-party classification, lazy-loading adoption, modern format hints, missing-alt audit, A-F grade via x402

Paid microdata + RDFa structured data extraction (cycle 92 gating fix)

Paid page render-mode + hydration-profile detector — Next/Nuxt/Remix/Astro/SvelteKit/React/Vue/Angular framework hints + body word count + hidden DOM % + noscript fallback + window.* hydration data keys + verdict string for AI-agent fetching strategy via x402

Paid multi-signal page-type classifier (URL/title/JSON-LD/OG/microdata/forms/structure -> primary category + confidence + secondary + A-F grade) via x402

Paid content-freshness detector (publish/modified dates from meta/JSON-LD/HTTP headers/time elements, age in days, A-F grade) via x402

Paid machine-API discovery rollup — link rel=alternate (oembed/atom/rss/jsonfeed) + HTTP Link header + JSON-LD Action/EntryPoint/Service + declared-spec-path probes (/llms.txt, /openapi.json, /swagger.json, /graphql, /.well-known/ai-plugin.json) + spec_ui script detection + machine_readability_score 0-100 with A-F grade + citations_api boolean via x402

Paid composite agent-trustworthiness score — security headers (HTTPS/HSTS/CSP/XFO/XCTO/RP/PP) + discoverability (robots/sitemap/llms.txt/security.txt) + standards (structured data/lang/cookie consent) rollup with A-F grade and prioritized findings via x402

Paid legal/ethical disclosure completeness audit — Terms/Privacy/Cookie/Affiliate/AI-policy links + FTC affiliate language detection + EU AI Act Art. 50 AI-disclosure detection + CCPA 'Do Not Sell' link + gdpr_legal_compliant + ftc_affiliate_compliant + eu_ai_act_art50_compliant + disclosure_score 0-100 with A-F grade via x402

Paid unified structured-data audit — JSON-LD + Microdata + RDFa aggregated into unique schema.org types + parent-class hierarchy + 21 rich-result candidate detection + machine_readability_score 0-100 with A-F grade via x402

Paid composite email-auth deliverability score (SPF + DKIM + DMARC + MTA-STS + BIMI rollup, A-F grade, post-Feb-2024 Gmail/Yahoo bulk-sender compliance check) via x402