DNS delegation of sipphone.com updated: May 19, 2013 2:39:34 AM
Delegation
step
query
auth
servers
1
sipphone.com.
.
(g,e,h,c,a,i,f,l,k,b,j,d,m).root-servers.net.
2
sipphone.com.
com.
(h,e,d,a,m,k,j,i,f,c,b,l,g).gtld-servers.net.
3
sipphone.com.
sipphone.com.
(ns1,ns4,ns2,ns3).google.com.
We pick g.root-servers.net, one of the 13 root servers (1), and ask it about sipphone.com and learn that com is delegated to 13 name servers (2), so we ask h.gtld-servers.net where we learn that sipphone.com is delegated to four name servers, including ns1.google.com (3), so we ask that one and get the following answer:
