862 services carry this tag in their source record. Tags come from the provider, not from us — a tag is a claim about what the service does, not proof that it does it well.
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 gra...
Paid multi-signal page-type classifier (URL/title/JSON-LD/OG/microdata/forms/structure -> primary category + confidence + secondary + A-F grade) via x402
Paid canonical URL consensus audit — link rel=canonical + HTTP redirect final + og:url + twitter:url + JSON-LD url/@id/mainEntityOfPage + hreflang x-default compared, consensus URL + agreement_count + canonical_health_sc...
Paid HTTP cache-control audit — probes favicon/robots/sitemap headers (Cache-Control+max-age+s-maxage+immutable+stale-while-revalidate / ETag / Last-Modified / Vary / Surrogate-Control / CDN-specific) returns cache_valid...
Paid publishing-velocity audit via Wayback CDX API — monthly distinct content-URL capture over 12 months, cadence classification (regular/bursty/dormant/irregular), burst + dormant detection, decay_trend (warming/stable/...
Paid deep sitemap audit — format validity + lastmod coverage % + lastmod ISO 8601 validity + image/video/news/xhtml extension support + sitemap index nesting depth + robots.txt Sitemap directive + changefreq/priority dep...
Paid deep robots.txt audit — per-UA directive counts, sitemap, 34 AI-bot directive detection (GPTBot/ClaudeBot/Google-Extended/CCBot/PerplexityBot/Meta-ExternalAgent/Bytespider/etc), crawl-delay, anti-pattern flags, robo...
Paid deep WCAG 2.1/2.2 AA accessibility audit — forms+inputs (label/aria-label/aria-labelledby/placeholder), autocomplete token validity, button+link accessible-name, heading hierarchy (skip-level + multiple-h1 detection...
Paid network-timing breakdown for a URL — DNS resolve + TCP connect + TLS handshake + TTFB (time to first byte) + total download phase-by-phase milliseconds + CDN/edge-region detection from CF-Ray/X-Amz-Cf-Pop/X-Vercel-I...
Paid exhaustive meta-tag coverage audit — title + meta_description + meta_robots + meta_keywords + meta_author + meta_generator + meta_theme_color + meta_viewport + 17 OG fields (og:title/description/image/url/type/site_...
Paid security.txt RFC 9116 deep audit — path discovery tries /.well-known/security.txt then /security.txt, parses all fields with line-continuation support, strict Contact format validation (mailto: + https://), strict E...
Paid OpenAPI 3.x / Swagger spec diff — accepts two URLs (url_a + url_b) or two inline payloads (spec_a + spec_b) as JSON or YAML, reports breaking changes (removed paths, removed operations, type/format changes, enum nar...
Paid form security + accessibility audit — per-form action analysis (empty/#/javascript:/data:/mixed-content http-on-https), method (GET with passwords = credential-in-URL), enctype (text/plain CRLF injection), target=_b...
Paid cache-freshness strategy audit — probes HTML page + /favicon.ico + /robots.txt + /sitemap.xml + first stylesheet URL + first script URL; for each captures Cache-Control directives + ETag + Last-Modified + Age + Vary...
Paid robots.txt vs meta robots vs X-Robots-Tag conflict detector — 4 conflict types (robots-disallow-vs-meta-index, robots-allow-vs-meta-noindex, X-Robots-Tag-noindex-vs-meta-index, X-Robots-Tag-index-vs-meta-noindex) +...
Paid JavaScript sourcemap exposure audit — fetches every external <script src> + probes inline-script //# sourceMappingURL= references + tries each .map URL via HEAD to surface public source-leak risk, sourcemaps_referen...
Paid Wayback Machine CDX-API archive availability audit — snapshot_count, first_snapshot, last_snapshot, age_at_first_snapshot_days, age_at_last_snapshot_days, years_active, snapshots_per_year, is_archived, is_recently_a...
Paid URL safety audit (sandbox-friendly) — 12-signal heuristic preflight for AI agents deciding whether to render/embed a URL: scheme allowlist (http = medium risk, mailto/file/javascript/data = high), Suspicious-TLD cat...
Paid AI/LLM crawl-policy synthesis (x402 $0.001) - GET ?domain=<DOMAIN> reads robots.txt, llms.txt, agents.txt and ai.txt, resolves policy for 40+ AI-bot User-Agents, and returns allow/block counts plus an A-F llm_crawl_...
Paid structural-diff between two URL snapshots — fetches both with 10s timeout, extracts 17 comparable dimensions (title/description/canonical/OG title/desc/image/h1-count/heading-count/image-count/link-count/word-count/...
Paid social-share preview image audit — parses og:image / og:image:url / og:image:secure_url / twitter:image / twitter:image:src / twitter:image:alt / link rel=image_src / link rel=icon / largest inline <img>, HEAD-valid...
Paid composite AI-agent friendliness score — rolls up 9 AI-relevant discovery surfaces (llms.txt + llms-full.txt + sitemap.xml + RSS/Atom + robots.txt AI-bot allow-rate + openapi.json + webmanifest + .well-known/agents.t...
Paid redirect-chain map (cycle 95) — follows 3xx chain up to 15 hops without auto-follow (custom HTTPRedirectHandler); per-hop status+location+scheme_change+latency_ms+content_length; detects redirect loops, cross-domain...
Paid DNT/GPC policy probe (cycle 96) — fetches target URL 3x (baseline, with DNT:1, with Sec-GPC:1); compares Set-Cookie count + body size to detect server-side honoring of privacy signals; probes 5 common privacy-policy...