DNS delegation of googlemashups.com updated: Jun 19, 2013 9:00:07 AM
Delegation
step
query
auth
servers
1
googlemashups.com.
.
(b,j,l,a,i,m,d,h,k,c,f,g,e).root-servers.net.
2
googlemashups.com.
com.
(k,b,h,f,d,m,c,j,g,i,a,e,l).gtld-servers.net.
3
googlemashups.com.
googlemashups.com.
(ns1,ns4,ns3,ns2).google.com.
We pick b.root-servers.net, one of the 13 root servers (1), and ask it about googlemashups.com and learn that com is delegated to 13 name servers (2), so we ask k.gtld-servers.net where we learn that googlemashups.com is delegated to four name servers, including ns1.google.com (3), so we ask that one and get the following answer:
The four name servers ns1, ns2, ns3 and ns4.google.com together
About one in six of the more than a thousands domains that use name server group 1 use mail server group 1 (example: dartlang.org and ourstories.org ).