What is WHOIS? (pronounced as the phrase "who is") It online service that helps to get information about a domain name. Usually, it is used to get information about the registrar, registrant, and date of the registration of the domain. All the WHOIS information is public and available to everyone.
What information can I get using WHOIS?
When can I use the WHOIS service?
WHOIS service is often used to find out the domain's or owner's history before purchase. It allows you to find the date of the first registration. All this will allow you to get full information about the site as a whole.