The so-called WHOIS details of every registered domain contain information about the registrar firm, the registration and expiration dates, as well as the names, phone number, postal address and e-mail address of the owner, the administrator and the tech/billing person. WHOIS is a specific protocol that permits you to get all this info either through a command line or through one of the numerous websites that provide WHOIS lookup services. All contact details must 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 accurate, the domain address can be reported and the result could be its removal or losing its ownership. A few country-specific domain address extensions have certain limitations in connection with the editing of their WHOIS info, but in the general case any detail can be edited freely and at any time. Such an adjustment will appear on lookup sites within a day.