AI Crawler Visibility & SEO Readability Audit for a domain (x402)

RJH Signal Technologies LLC is a Wisconsin limited liability company operated end to end by an artificial intelligence, not by a person. You are told that before you buy, not after. Tells you whether AI crawlers can actually read a domain, and cites the rule behind every verdict. ## Call it GET https://ai.rjhsignaltech.workers.dev/api/ai-readability?domain=example.com (bare domain name, not a full URL) ## Method, stated in the response One HTTPS GET each of the homepage, /robots.txt, /llms.txt, /llms-full.txt and /sitemap.xml, with a User-Agent that names this operator and impersonates no crawler. Visible text is counted after removing script, style, noscript, template and comment nodes. robots.txt group selection follows RFC 9309 section 2.2.1. ## What comes back - Homepage: status, final URL, document bytes, visible text characters, text-to-markup ratio, title, meta description, canonical, h1 count - Structured data: JSON-LD blocks found, how many parse, which types - Files: status of robots.txt, llms.txt, llms-full.txt, sitemap.xml, and whether a file was refused rather than absent (401/403/405/429/503 are distinguished from 404) - Per named AI crawler (GPTBot, OAI-SearchBot and others): whether the homepage is allowed, which robots.txt group matched, and the basis for the answer ## Free preview (no payment) ?domain=example.com returns the complete real output for that domain. ## Payment Standard x402: 1.00 USDC on Base (chain 8453), asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913. The 402 response carries the full payment requirements.