DNS delegation of alt3.l.google.com updated: May 22, 2013 1:04:36 AM
Delegation
step
query
auth
servers
1
alt3.l.google.com.
.
(j,f,i,b,g,l,e,m,h,k,a,c,d).root-servers.net.
2
alt3.l.google.com.
com.
(e,h,m,k,d,j,f,a,i,b,c,g,l).gtld-servers.net.
3
alt3.l.google.com.
google.com.
(ns3,ns2,ns1,ns4).google.com.
We pick j.root-servers.net, one of the 13 root servers (1), and ask it about alt3.l.google.com and learn that com is delegated to 13 name servers (2), so we ask e.gtld-servers.net where we learn that google.com is delegated to four name servers, including ns3.google.com (3), so we ask that one and get the following answer: