WHOIS Lookup
Search WHOIS records for any domain name, IP address, or ASN to find registration details, nameservers, and contact information.
What Is WHOIS?
WHOIS is a public database protocol that stores registration information for domain names and IP address blocks. When you register a domain, your registrar submits contact and nameserver details to WHOIS databases. IP WHOIS records show which organization owns a block of IP addresses and who to contact for abuse reports.
Our tool queries RDAP (Registration Data Access Protocol) servers to retrieve the most current registration data available for any domain or IP address.
Privacy Note
Many domain registrars now offer WHOIS privacy services that replace owner contact details with proxy information. IP WHOIS records typically show the ISP or hosting provider rather than individual users.