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WHOIS is a query and response protocol that is widely used for querying databases that store the registered users or assignees of an Internet resource, such as a domain name, an IP address block, or an autonomous system.
WHOIS Lookup is a free online tool that retrieves registration information about domain names and IP addresses. It reveals the domain registrar, registration and expiration dates, nameservers, and registrant contact information (when available). Essential for domain research and verification.
Our tool queries official WHOIS databases to provide accurate information about domain ownership, helping you research domain availability, verify ownership, and investigate suspicious websites.
Find domain registrant details including organization, contact info, and location.
View domain creation, update, and expiration dates for planning and monitoring.
Identify the domain registrar and nameservers for technical troubleshooting.
Support for all top-level domains including .com, .org, .net, country codes, and new gTLDs.
WHOIS is a protocol and database that stores registration information about domain names and IP addresses. It was created in the early days of the internet to help identify domain owners and administrators.
Many domain owners use WHOIS privacy protection to hide personal information and prevent spam. GDPR regulations also require redacting personal data for domains owned by EU residents.
WHOIS shows the expiration date in the registry data. After expiration, there's typically a grace period, then a redemption period, before the domain becomes available for public registration.