WHOIS is a protocol which makes it easy to view the details a specific domain name has been registered with through a command line or by using special web-based lookup sites. This info includes the names, address and e-mail address of the owner, administrator, technical and billing persons in addition to the registrar organization the domain address has been acquired through, the creation and expiration dates. Apart from a few country-code TLDs that have certain limitations, the WHOIS information of any Internet domain can be edited freely at any time, which is quite important provided that according to the policies of the top-level Internet Corporation, ICANN, all details must be current and valid all of the time. Inability to comply with these policies may lead to losing the ownership of a domain name and in many cases a domain address could even be erased from the Domain Name System and released for free registration.