In the domain name industry, a whois domain lookup is an essential tool. It allows you to find out the contact information of the owner of a domain name, as well as when it was registered and when it will expire. This can be very useful if you're trying to track down the owner of a domain that you want to buy, or if you're trying to avoid someone who is cybersquatting on a trademarked term.

 A Whois domain lookup is a way to find out who owns a given domain name. You can use a Whois domain lookup to find contact information for the owner of a domain, as well as when the domain was created and when it is set to expire. Whois domain lookups can be useful if you want to buy a domain that is already in use, or if you want to find out more about who owns a particular website.