DNS delegation of a.166dh.com updated: May 20, 2013 2:33:01 PM
Delegation
step
query
auth
servers
1
a.166dh.com.
.
(a,k,b,h,c,m,d,f,i,g,l,j,e).root-servers.net.
2
a.166dh.com.
com.
(i,f,l,k,j,d,e,a,m,b,c,h,g).gtld-servers.net.
3
a.166dh.com.
166dh.com.
(ns1,ns2).72dns.com.
We pick a.root-servers.net, one of the 13 root servers (1), and ask it about a.166dh.com and learn that com is delegated to 13 name servers (2), so we ask i.gtld-servers.net where we learn that 166dh.com is delegated to two name servers, including ns1.72dns.com (3), so we ask that one and get the following answer:
A.166dh.com is a domain controlled by two domain name servers at 72dns.com having a total of four IP numbers. All four of them are on different IP networks.