Check domain ownership and registration details.
Query WHOIS databases for domain registration details including registrar, creation date, expiry date, and nameservers. Supports .com, .net, .org, .io, and many other TLDs.
Our server connects to the appropriate WHOIS server for the domain's TLD via a raw socket on port 43, sends the query, and parses the response to extract key fields. The full raw WHOIS text is also available for inspection.