DNS delegation of googlmail.com updated: May 25, 2013 11:33:03 PM
Delegation
step
query
auth
servers
1
googlmail.com.
.
(d,h,f,j,e,l,g,i,c,m,k,a,b).root-servers.net.
2
googlmail.com.
com.
(e,k,g,b,m,j,d,f,l,c,i,h,a).gtld-servers.net.
3
googlmail.com.
googlmail.com.
(ns3,ns1,ns4,ns2).google.com.
We pick d.root-servers.net, one of the 13 root servers (1), and ask it about googlmail.com and learn that com is delegated to 13 name servers (2), so we ask e.gtld-servers.net where we learn that googlmail.com is delegated to four name servers, including ns3.google.com (3), so we ask that one and get the following answer:
