What is a WhoIs lookup?
A WHOIS search allows for the finding of public information specific to a registered domain on the internet. This information includes the domain creation, expiration, and last modification dates, as well as contact information for the administrative, billing, registrative, and technical entities responsible for the domain. To perform a WhoIs lookup, just visit InterNIC.
It means that you can get the information about the domain name and the owner of the domain name, I got my whois information and lookup details, through this site http://www.whoisxy.com/ It has the best information of whois informatin,IP address, IP address to domain, domain name to IP,domain name, DNS query details, and ping test!!!
Whois is helps to find the DOMAIN NAME owner address,registration date,Expiring date,zip code,country name,city,state,etc …If these details hidden in whois search it’s privacy domain name.To check your domain name whether registered under privacy option or not,you can simply visit the site Whoisxy.com it shows those details.
Whois is one type of protocol . It is used for find the information about domain owner details,ip address,contact information,.whois services operated throgh a whois server. Any one connect to a whois server and send a query. The whois server will then response to the query and close connection.
I have checked whois look up information from this site WhoisXY.com