DNS delegation of resolver.net updated: May 19, 2013 11:03:33 PM
We pick b.root-servers.net, one of the 13 root servers (1), and ask it about resolver.net and learn that net is delegated to 13 name servers (2), so we ask b.gtld-servers.net where we learn that resolver.net is delegated to five name servers, including ns3.yahoo.com (3), so we ask that one and get the following answer:
The five name servers ns1, ns2, ns3, ns4 and ns5.yahoo.com together
Three quarter of the several hundred of domains that use name server group 1 point to IP group 1 (example: dlsyahoo.com, emailyahoomail.com and findchatingyahoo.com ). Worth noting is that most of the host names that point to IP group 1 use name server group 1.