DNS delegation of mixyahoo.com updated: May 21, 2013 6:48:18 PM
Delegation
step
query
auth
servers
1
mixyahoo.com.
.
(i,l,k,g,j,c,e,d,h,m,b,f,a).root-servers.net.
2
mixyahoo.com.
com.
(f,g,e,b,c,a,m,i,l,d,k,j,h).gtld-servers.net.
3
mixyahoo.com.
mixyahoo.com.
(ns1,ns2,ns4,ns5,ns3).yahoo.com.
We pick i.root-servers.net, one of the 13 root servers (1), and ask it about mixyahoo.com and learn that com is delegated to 13 name servers (2), so we ask f.gtld-servers.net where we learn that mixyahoo.com is delegated to five name servers, including ns1.yahoo.com (3), so we ask that one and get the following answer:
The five name servers ns1, ns2, ns3, ns4 and ns5.yahoo.com together
Three quarter of the more than a thousands domains that use name server group 1 point to IP group 1 (example: cgi2-yahoo.com, dlsyahoo.com and emailyahoomail.com ). Worth noting is that most of the host names that point to IP group 1 use name server group 1.