The so-called WHOIS details of every registered domain name include information about the registrar firm, the registration and expiration dates, in addition to the names, telephone number, postal address and email address of the owner, the administrator and the tech/billing person. WHOIS is a specific protocol that lets you get this information either through a command line or through one of the many websites that provide WHOIS lookup services. All details 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 internet domain may be reported and the result may be its deletion or losing its ownership. A number of country-specific domain extensions have certain limitations in connection with the change of their WHOIS information, but in the typical situation any detail can be edited openly and at any time. Such an adjustment will appear on lookup sites within 24 hours.