DNS delegation of googlegroup.com updated: May 24, 2013 2:54:17 AM
Delegation
step
query
auth
servers
1
googlegroup.com.
.
(j,b,m,g,f,l,c,a,d,k,i,e,h).root-servers.net.
2
googlegroup.com.
com.
(j,l,c,k,a,f,h,d,e,g,m,i,b).gtld-servers.net.
3
googlegroup.com.
googlegroup.com.
(ns2,ns4,ns1,ns3).google.com.
We pick j.root-servers.net, one of the 13 root servers (1), and ask it about googlegroup.com and learn that com is delegated to 13 name servers (2), so we ask j.gtld-servers.net where we learn that googlegroup.com is delegated to four name servers, including ns2.google.com (3), so we ask that one and get the following answer:
