DNS delegation of ns3.tv updated: Jun 19, 2013 5:19:39 PM
We pick b.root-servers.net, one of the 13 root servers (1), and ask it about ns3.tv and learn that tv is delegated to seven name servers (2), so we ask f5.nstld.com where we learn that ns3.tv is delegated to two name servers, including buy.internettraffic.com (3), so we ask that one and get the following answer:
The two IP numbers 188.8.131.52 and 184.108.40.206 together
Three quarter of the several thousand of host names that point to IP group 1 use name server group 1 (example: trav.it, uqfb.com and sexcrime.net ). Worth noting is that one quarter of the domains that use name server group 1 point to IP group 1.