WHOIS is a protocol that makes it simple to view the information a given domain has been registered with through a command line or through the use of special web-based lookup sites. This information 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 purchased through, the creation and expiration dates. Except for some country-code TLDs that have certain limitations, the WHOIS info of any domain name can be modified freely anytime, which is quite vital since in line with the policies of the top-level Internet Corporation, ICANN, all details ought to be current and correct all of the time. Inability to conform with these policies could lead to losing the ownership of an Internet domain and in many cases a domain address could even be erased from the Domain Name System and released for free registration.