The WHOIS info of a domain is a collection of numerous details that are publicly accessed through special lookup websites or a command line. The protocol that makes this possible has the same name and you could effortlessly see the organization through which an Internet domain has been registered, the creation, expiration and last update dates in addition to the names, postal and e-mail address of the people listed as Registrant (owner), Administrative, Technical and Billing contacts for a particular domain name. All of this information ought to be correct and up-to-date at all times; if it's not the domain address registration could 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 domains are legitimate. Updating the WHOIS for several country-code TLDs is limited, so any time you register a new domain address, you should double-check the information that you are submitting.