The so-called WHOIS details of any registered domain include information regarding the registrar organization, the registration and expiration dates, along with the names, contact number, postal address and e-mail address of the owner, the administrator and the tech/billing person. WHOIS is a special protocol that permits you to get this information through a command line or via one of the numerous Internet websites that provide WHOIS lookup services. All info must be up-to-date as per the regulations of ICANN, the Internet Corporation for Assigned Names and Numbers. If some of the info is not accurate, the domain name may be reported and the result may be its deletion or losing its ownership. A number of country-specific domain extensions have specific limitations in connection with the change of their WHOIS info, but in the typical scenario any detail can be changed freely and at any time. Such an adjustment will show up on lookup websites within twenty four hours.