The so-called WHOIS details of every registered domain contain information regarding the registrar organization, the registration and expiration dates, in addition to the names, contact number, postal address and email address of the owner, the administrator and the tech/billing person. WHOIS is a special protocol that permits you to retrieve this info through a command line or by using one of the many Internet websites that provide WHOIS lookup services. All information should be up-to-date in line 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 could be its removal or losing its ownership. A number of country-specific internet domain extensions have certain limitations in connection with the change of their WHOIS details, but in the typical scenario any detail can be modified openly and at any moment. Such a modification will show up on lookup websites within twenty four hours.