DNS delegation of google.ec updated: Jun 20, 2013 2:40:26 AM
Delegation
step
query
auth
servers
1
google.ec.
.
(e,k,h,i,g,m,b,a,l,j,c,f,d).root-servers.net.
2
google.ec.
ec.
n3.dns.ec. n2.nic.ec. n1.nic.ec. sns-pb.isc.org.
3
google.ec.
google.ec.
(ns2,ns3,ns4,ns1).google.com.
We pick e.root-servers.net, one of the 13 root servers (1), and ask it about google.ec and learn that ec is delegated to four name servers (2), so we ask n3.dns.ec where we learn that google.ec is delegated to four name servers, including ns2.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: hantro.com, dartlang.org and ourstories.org ).