WHOIS is a protocol which makes it an easy task to see the details a particular domain has been registered with either through a command line or by using special web-based lookup sites. This info includes the names, address and email address of the owner, admin, technical and billing persons plus the registrar business the domain name has been purchased through, the creation and expiration dates. With the exception of some country-code TLDs that have certain limitations, the WHOIS info of any domain can be edited freely whenever you want, which is quite important provided that according to the policies of the top-level Internet Corporation, ICANN, all details ought to be current and correct all of the time. Failing to conform with these policies may result in losing the ownership of a domain address and in some cases a domain may even be deleted from the Domain Name System and released for free registration.