DNS delegation of orkut.dk updated: May 25, 2013 1:37:33 PM
Delegation
step
query
auth
servers
1
orkut.dk.
.
(m,h,e,l,k,d,i,f,g,a,j,b,c).root-servers.net.
2
orkut.dk.
dk.
(b,c,l,a,p,s).nic.dk.
3
orkut.dk.
orkut.dk.
(ns3,ns4,ns6,ns7,ns2,ns1,ns5).markmonitor.com.
We pick m.root-servers.net, one of the 13 root servers (1), and ask it about orkut.dk and learn that dk is delegated to six name servers (2), so we ask b.nic.dk where we learn that orkut.dk is delegated to seven name servers, including ns3.markmonitor.com (3), so we ask that one and get the following answer:
There are more than two thousand domains that only use the IPv4 number 64.124.14.82.
A third of those use the two name servers ns1 and ns3.markmonitor.com together, hereafter referred to as "name server group 2", (example: p90xgear.com, m-l.us and youtube.co.tz ). Worth noting is that a third of the domains that use name server group 2 use only the IPv4 number 64.124.14.82.