WHOIS is a protocol that makes it simple to see the details a specific domain name has been registered with through a command line or by using special web-based lookup sites. This information includes the names, address and email address of the owner, admin, tech and billing persons in addition to the registrar company the Internet domain has been obtained through, the creation and expiration dates. Apart from a number of country-code TLDs that have specific limitations, the WHOIS info of any Internet domain can be edited freely whenever you want, which is quite important since in accordance with the policies of the top-level Internet Corporation, ICANN, all details have to be current and valid all of the time. Failing to conform with these policies could lead to losing the ownership of an Internet domain and in many cases a domain name could even be deleted from the Domain Name System and released for free registration.