The WHOIS info of a domain name is a collection of various details which are publicly accessed via special lookup Internet sites or a command line. The protocol that makes this possible bears the same name and you can effortlessly see the firm through which a domain address has been registered, the creation, expiration and last update dates along with the names, postal and e-mail address of the individuals listed as Registrant (owner), Administrative, Technical and Billing contacts for a particular domain. This info should be legitimate and up-to-date all the time; otherwise the domain name registration can be challenged. The latter is a policy of ICANN (the Internet Corporation for Assigned Names and Numbers), therefore you must always ensure that the WHOIS details of your domain addresses are legitimate. Updating the WHOIS for several country-code TLDs is limited, so any time you register a completely new Internet domain, make sure you double-check the information you're submitting.