Free Online Whois Lookup Tool | Domain Information Checker

Whois Lookup

Enter an IP address or domain name to start your query

What is Whois?

Whois is a query and response protocol widely used for querying databases that store registered users or assignees of Internet resources, such as domain names, IP address blocks, and autonomous system numbers. The Whois lookup provides information about domain registration date, expiration date, registrar, and sometimes contact information for the domain owner.