Whois data tells you who owns a domain, where it is registered, and when it expires. The Gizmo 421 Whois Lookup reads it straight from the registry via RDAP — the modern, structured replacement for the old port-43 whois protocol — with zero servers of ours in the path.
You get the registrar of record, the creation and expiration dates, the latest update, the domain’s status flags (like clientTransferProhibited), and the authoritative nameservers. Everything is read from the registry’s own RDAP service through the rdap.org bootstrap redirector — the same data the classic whois command shows, parsed into a table you can actually read.
What is RDAP?
RDAP — Registration Data Access Protocol — is the JSON-based successor to whois, standardized in RFC 7480 through 9083. Registries operate it as a public HTTPS API, which is exactly why this tool can query it directly from your browser: no port-43 gateway, no scraping, no middleman logging your lookups. One honest limitation: a handful of country-code registries still do not send the CORS headers browsers require, so some ccTLDs will fail here — .com, .net, .org, .info, .io and most gTLDs work fine.
Common questions
Can I see a domain owner’s name and email? For most registrations, no — GDPR and ICANN’s temporary specification redact personal contact data, so what you see here is what the registry publishes. Why does my expiry date look wrong? Registries report the official registry expiry; auto-renewal and grace periods happen at the registrar level. What are status codes? They are registry locks — “ok” means normal, “pendingTransfer” means a transfer is in flight, and “clientTransferProhibited” is the standard anti-hijack lock.