The WHOIS info of an domain name is a collection of many details that are freely accessed via specific lookup Internet sites or a command line. The protocol which makes this possible carries the same name and you may easily see the company through which an Internet domain has been registered, the creation, expiration and last update dates together with the names, postal and email address of those listed as Registrant (owner), Administrative, Technical and Billing contacts for a particular domain address. All of this info ought to be valid and up-to-date constantly; otherwise the Internet domain registration could be challenged. The latter is a policy of ICANN (the Internet Corporation for Assigned Names and Numbers), therefore you must always make certain that the WHOIS details of your domains are legitimate. Updating the WHOIS for a variety of country-code TLDs is limited, so when you register a new domain name, make sure you double-check the information you are submitting.