Look up domain and IP registration records — registrar, dates, name servers, and raw WHOIS text.
WHOIS queries the responsible registry (via referral-following: thin registries redirect to the registrar's server) and shows which server answered plus the full raw record.
example.com → Internet Assigned Numbers Authority, created 1995-08-14GDPR and privacy-redaction policies hide most registrant contact details. What remains is registrar, dates, status, and name servers.
Thin registries (like .com) return a referral to the registrar's WHOIS server; this tool follows it automatically to show the full record.
RDAP is the structured JSON successor to WHOIS. WHOIS remains useful because every TLD and RIR still serves it as plain text.