The so-called WHOIS details of each registered domain name contain details about the registrar company, the registration and expiration dates, plus the names, phone number, postal address and e-mail address of the owner, the administrator and the tech/billing person. WHOIS is a special protocol that permits you to obtain all this info through a command line or through one of the many sites that offer WHOIS lookup services. All contact details should be up-to-date as per the regulations of ICANN, the Internet Corporation for Assigned Names and Numbers. If some of the information is not accurate, the domain address can be reported and the result may be its removal or losing its ownership. Some country-specific domain name extensions have certain limitations for the editing of their WHOIS details, but in the general case any detail can be modified openly and at any moment. Such an adjustment will show up on lookup sites within 24 hours.