# DomainTools — AI agent index # Canonical: https://domaintools.site/ai-en.txt # Full guide: https://domaintools.site/llms-en.txt # Index: https://domaintools.site/ai.txt > Prefer structured JSON over HTML scraping. Human UI is bilingual (ru/en). ## Quick start - Site root: https://domaintools.site/ - Machine-readable site map for agents: https://domaintools.site/llms-en.txt - OpenAPI (public spec): https://domaintools.site/openapi.json - Developer hub: https://domaintools.site/developers ## Indexable sections - Tools: https://domaintools.site/tools - Guides: https://domaintools.site/guides - Comparisons: https://domaintools.site/compare - Glossary: https://domaintools.site/glossary - Zone search: https://domaintools.site/zones/{tld} Dynamic /check/{domain} and /lookup/*/{domain} URLs are interactive noindex results. ## Agent API (requires API key when enabled) - Base: https://domaintools.site/api/v1/ - Auth: X-API-Key or Authorization: Bearer - Endpoints: /dns, /whois, /geo, /reverse, /report ## Do not scrape aggressively - /security — rate-limited port scanner - /history — private user history (noindex) - Respect 429 responses ## Other language versions - Russian: https://domaintools.site/ai-ru.txt - llms.txt index: https://domaintools.site/llms.txt