WHOIS is a protocol which makes it an easy task to see the information a particular domain has been registered with either through a command line or by using special web-based lookup websites. This info includes the names, address and e-mail address of the owner, administrator, tech and billing persons along with the registrar organization the domain has been acquired through, the creation and expiration dates. With the exception of a few country-code TLDs that have certain limitations, the WHOIS details of any domain name can be changed freely whenever you want, which is quite vital considering that in line with the policies of the top-level Internet Corporation, ICANN, all details ought to be current and legitimate always. Failure to comply with these policies may lead to losing the ownership of a domain address and in some cases a domain address may even be erased from the Domain Name System and released for free registration.