The so-called WHOIS details of any registered domain name include information about the registrar organization, the registration and expiration dates, as well as the names, telephone number, postal address and e-mail address of the owner, the administrator and the tech/billing person. WHOIS is a special protocol that lets you get all this information through a command line or using one of the numerous websites that provide WHOIS lookup services. All details should be up-to-date in line with the policies of ICANN, the Internet Corporation for Assigned Names and Numbers. If some of the info is not legitimate, the domain address may be reported and the result might be its deletion or losing its ownership. Some country-specific domain extensions have certain limitations in connection with the change of their WHOIS details, but in the typical case any detail can be modified openly and at any moment. Such a change will show up on lookup websites within twenty four hours.