The so-called WHOIS details of each registered domain include details about the registrar organization, the registration and expiration dates, along with the names, contact number, postal address and e-mail address of the owner, the admin and the tech/billing person. WHOIS is a special protocol that allows you to obtain this information either through a command line or via one of the many websites that offer WHOIS lookup services. All information should be up-to-date as per the rules of ICANN, the Internet Corporation for Assigned Names and Numbers. If some of the information is not legitimate, the domain can be reported and the result might be its removal or losing its ownership. Several country-specific internet domain extensions have certain limitations concerning the change of their WHOIS info, but in the general case any detail can be modified freely and at any time. Such an adjustment will appear on lookup Internet sites within twenty four hours.