8 Services from domain.hugen.tokyo

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

Checks a domain's HTTP security headers across 10 vectors and assigns an A-F security grade with information leakage detection

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.

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.

Detects the technology stack of a domain using 1000+ signatures, identifying web servers, CMS, JS frameworks, CDNs, and analytics tools

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

Finds all subdomains of a domain that have issued SSL certificates, with deduplication and wildcard handling

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