The WHOIS information of a domain name is a collection of various details that are publicly accessed through specific lookup sites or a command line. The protocol that makes this possible bears the same name and you may effortlessly see the company through which an Internet domain has been registered, the creation, expiration and last update dates along with the names, postal and e-mail address of those listed as Registrant (owner), Administrative, Technical and Billing contacts for a specific domain address. All this information should be valid and up-to-date all the time; if not the domain name registration may be challenged. The latter is a policy of ICANN (the Internet Corporation for Assigned Names and Numbers), this means you should always make certain that the WHOIS details of your domain names are accurate. Updating the WHOIS for a number of country-code TLDs is limited, so any time you register a completely new domain address, you ought to double-check the info that you are submitting.