The WHOIS info of an domain is a collection of various details that are openly accessed using specific lookup websites or a command line. The protocol which makes this possible has the same name and you could very easily see the organization where an Internet domain has been registered, the creation, expiration and last update dates along with the names, postal and email address of the people listed as Registrant (owner), Administrative, Technical and Billing contacts for a particular Internet domain. All this information should be valid and up-to-date at all times; otherwise the domain address registration may be challenged. The latter is a policy of ICANN (the Internet Corporation for Assigned Names and Numbers), therefore you should always make certain that the WHOIS details of your domain names are accurate. Updating the WHOIS for numerous country-code TLDs is limited, so any time you register a new domain name, you should double-check the information that you are submitting.