We pick j.root-servers.net, one of the 13 root servers (1), and ask it about pcsupportcenter.com and learn that com is delegated to 13 name servers (2), so we ask i.gtld-servers.net where we learn that pcsupportcenter.com is delegated to two name servers, including ns02.domaincontrol.com (3), so we ask that one and get the following answer:
Pcsupportcenter.com is a domain controlled by two domain name servers at domaincontrol.com having a total of four IP numbers. All four of them are on different IP networks. Incoming mail for pcsupportcenter.com is handled by seven mail servers at googlemail.com and google.com having a total of 61 IP numbers. There are 25 duplicated IP numbers. Some of them are on the same IP network.
