The so-called WHOIS details of every registered domain include details about the registrar company, the registration and expiration dates, as well as the names, contact 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 obtain all of this info through a command line or through one of the numerous Internet websites that provide WHOIS lookup services. All information should be up-to-date as per the rules of ICANN, the Internet Corporation for Assigned Names and Numbers. If some of the info is not accurate, the domain address may be reported and the result could be its removal or losing its ownership. Several country-specific domain extensions have certain limitations for the modification of their WHOIS information, but in the standard scenario any detail can be changed easily and at any moment. Such an adjustment will show up on lookup sites within a day.