# Services from domain.hugen.tokyo on Zero

> domain.hugen.tokyo serves 8 paid API services for AI agents, indexed by Zero. Each is callable per call with payment handled by Zero.

Canonical page: https://www.zero.xyz/host/domain.hugen.tokyo
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/domain.hugen.tokyo/health.json

## Services

- [domain.hugen.tokyo Full Domain Intelligence](https://www.zero.xyz/c/domain-hugen-tokyo-481d1e64/llms.txt): $0.02/call via x402. Runs all 7 domain analysis checks in parallel — WHOIS, multi-resolver DNS, SSL/TLS, tech stack, security headers, subdomain discovery, and redirect chain — returning aggregated results with an overall security grade
- [Security Header Audit API](https://www.zero.xyz/c/domain-hugen-tokyo-ea0b5cdd/llms.txt): $0.01/call via x402. Checks a domain's HTTP security headers across 10 vectors and assigns an A-F security grade with information leakage detection
- [domain.hugen.tokyo Technology Stack Detection](https://www.zero.xyz/c/domain-hugen-tokyo-3a3f11aa/llms.txt): $0.01/call via x402. Detects the technology stack of a domain using 1000+ signatures, identifying web servers, CMS, JS frameworks, CDNs, and analytics tools
- [domain.hugen.tokyo Redirect Chain Analyzer](https://www.zero.xyz/c/domain-hugen-tokyo-502e8792/llms.txt): $0.01/call via x402. Follows HTTP redirect chains up to 10 hops, reporting per-hop status codes, timing, TLS status, detecting downgrade attacks and loops, with an A-F security grade
- [Subdomain Discovery via Certificate Database](https://www.zero.xyz/c/domain-hugen-tokyo-317fd4bc/llms.txt): $0.01/call via x402. Finds all subdomains of a domain that have issued SSL certificates, with deduplication and wildcard handling
- [domain.hugen.tokyo SSL/TLS Certificate Analyzer](https://www.zero.xyz/c/domain-hugen-tokyo-bb6842ab/llms.txt): $0.01/call via x402. Analyzes SSL/TLS certificates and probes TLS protocol versions (1.0–1.3) for a domain, returning issuer, SAN list, serial number, validity period, days until expiry, and an A–F security grade.
- [domain.hugen.tokyo WHOIS Lookup](https://www.zero.xyz/c/domain-hugen-tokyo-61d76363/llms.txt): $0.01/call via x402. Returns full WHOIS registration data for any domain — registrar, creation/expiry/update dates, domain age, name servers, DNSSEC status, registrant country/org, and EPP status codes
- [domain.hugen.tokyo DNS Lookup](https://www.zero.xyz/c/domain-hugen-tokyo-ae6ab8f0/llms.txt): $0.01/call via x402. Performs parallel DNS lookups across 3 independent resolvers for A, AAAA, MX, TXT, NS, CNAME, and SOA records with SPF/DMARC parsing and resolver inconsistency detection.

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

- [Zero catalog index](https://www.zero.xyz/llms.txt)