The so-called WHOIS details of each registered domain contain information about the registrar organization, the registration and expiration dates, and also the names, phone number, postal address and email address of the owner, the administrator and the tech/billing person. WHOIS is a specific protocol that permits you to retrieve all of this information through a command line or through one of the numerous sites that provide WHOIS lookup services. All information must be up-to-date in accordance with the regulations of ICANN, the Internet Corporation for Assigned Names and Numbers. If some of the info is not legitimate, the domain may be reported and the result might be its removal or losing its ownership. Several country-specific domain name extensions have certain limitations concerning the change of their WHOIS details, but in the general scenario any detail can be edited easily and at any time. Such a change will appear on lookup websites within a day.