The WHOIS info of an domain name is a collection of numerous details that are openly accessed using special lookup websites or a command line. The protocol that makes this possible carries the same name and you may effortlessly see the firm where a 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 particular domain address. This info should be valid and up-to-date at all times; 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 must always ensure that the WHOIS details of your domains are legitimate. Updating the WHOIS for a variety of country-code TLDs is limited, so whenever you register a brand new domain, make sure you double-check the information that you're submitting.