Whois is a widely used Internet record listing that identifies who owns a domain and how to get in contact with them. The Internet Corporation for Assigned Names and Numbers (ICANN) regulates domain name registration and ownership.

The Whois database makes it easy to find a website owner. This may be useful if you need to contact the domain name holder, or if you're a legal team wanting to clarify ownership for a trademark dispute.

You can find out who owns a domain by searching the WHOIS database to find key information such as registrant name, address status and phone number. Note some domains employ a privacy shield to hide such information.

WHOIS (pronounced as the phrase "who is") is a query and response protocol that is used for querying databases that store an Internet resource's registered users or assignees. These resources include domain names, IP address blocks and autonomous systems, but it is also used for a wider range of other information.