The WHOIS info of a domain name is a collection of a number of details that are freely accessed through special lookup Internet sites or a command line. The protocol which makes this possible bears the same name and you may effortlessly see the company where 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 Internet domain. All this info ought to be valid and up-to-date constantly; otherwise the Internet domain registration can be challenged. The latter is a policy of ICANN (the Internet Corporation for Assigned Names and Numbers), so you should always make certain that the WHOIS details of your domains are accurate. Updating the WHOIS for a variety of country-code TLDs is limited, so any time you register a completely new Internet domain, it is best to double-check the info you're submitting.