The so-called WHOIS details of any registered domain name include info about the registrar organization, the registration and expiration dates, along with 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 allows you to obtain all this info through a command line or through one of the many sites which provide WHOIS lookup services. All information should be up-to-date as per the policies of ICANN, the Internet Corporation for Assigned Names and Numbers. If some of the information is not legitimate, the domain name may be reported and the result could be its removal or losing its ownership. A few country-specific domain address extensions have certain limitations for the modification of their WHOIS information, but in the standard situation any detail can be modified easily and at any moment. Such an adjustment will appear on lookup sites within 24 hours.