We pick b.root-servers.net, one of the 13 root servers (1), and ask it about reasontofreedom.com and learn that com is delegated to 13 name servers (2), so we ask b.gtld-servers.net where we learn that reasontofreedom.com is delegated to two name servers, including ns20.hostcolor.us (3), so we ask that one and get the following answer:
All of the four host names that point to the IP number 68.233.32.30 point only to that ip number.
The IP number 68.233.32.30 only
All of the four host names that point only to the IP number 68.233.32.30 use the two name servers ns19 and ns20.hostcolor.us together, hereafter referred to as "name server group 1". Worth noting is that four of the domains that use name server group 1 point only to the IP number 68.233.32.30.
The two name servers ns19 and ns20.hostcolor.us together
There are more than hundred domains that use name server group 1.
