Whois is a protocol used to query 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 the owner of this domain?

WHOI is a renowned name in the field of oceanographic sciences.

Whoising is a useful tool for finding information about domain names.

She whoised the mysterious caller.

Whoises are used to determine the registered owner of a domain name.

Who is he?