WHOIS is a protocol that makes it simple to see the information a given domain has been registered with either through a command line or through the use of special web-based lookup websites. This info includes the names, address and email address of the owner, administrator, tech and billing persons plus the registrar organization the Internet domain has been acquired through, the creation and expiration dates. Aside from a number of country-code TLDs that have certain limitations, the WHOIS details of any domain name can be edited freely whenever you want, which is quite necessary considering that in accordance with the policies of the top-level Internet Corporation, ICANN, all details ought to be current and legitimate all of the time. Inability to comply with these policies could lead to losing the ownership of an Internet domain and in many cases a domain address may even be erased from the Domain Name System and released for free registration.