The so-called WHOIS details of every registered domain contain info about the registrar company, 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 lets you retrieve this information through a command line or using one of the many Internet websites which provide WHOIS lookup services. All info should be up-to-date in line with the regulations of ICANN, the Internet Corporation for Assigned Names and Numbers. If some of the details are not legitimate, the internet domain could be reported and the result might be its deletion or losing its ownership. Some country-specific domain address extensions have certain limitations in connection with the modification of their WHOIS information, but in the standard case any detail can be modified freely and at any moment. Such an adjustment will appear on lookup websites within twenty four hours.