The so-called WHOIS details of any registered domain include information regarding the registrar organization, the registration and expiration dates, as well as the names, telephone number, postal address and e-mail address of the owner, the administrator and the tech/billing person. WHOIS is a special protocol that enables you to get this info through a command line or using one of the many Internet websites that provide WHOIS lookup services. All contact details ought to be up-to-date in line with the rules of ICANN, the Internet Corporation for Assigned Names and Numbers. If some of the info is not correct, the domain address may be reported and the result could be its deletion or losing its ownership. Some country-specific domain name extensions have specific limitations concerning the change of their WHOIS details, but in the standard scenario any detail can be modified freely and at any time. Such an adjustment will appear on lookup Internet sites within 24 hours.