DNS delegation of wwww.nxxn.com updated: Jun 19, 2013 1:13:41 PM
Delegation
step
query
auth
servers
1
wwww.nxxn.com.
.
(l,i,m,e,f,h,b,d,g,j,c,a,k).root-servers.net.
2
wwww.nxxn.com.
com.
(f,i,m,k,j,e,a,d,c,g,l,b,h).gtld-servers.net.
3
wwww.nxxn.com.
nxxn.com.
(ns2,ns1).above.com.
We pick l.root-servers.net, one of the 13 root servers (1), and ask it about wwww.nxxn.com and learn that com is delegated to 13 name servers (2), so we ask f.gtld-servers.net where we learn that nxxn.com is delegated to two name servers, including ns2.above.com (3), so we ask that one and get the following answer:
Three quarter of the several thousand of host names that point only to the IP number 69.43.160.151 use name server group 1 (example: mail.passionateteens.com, snapgolf.com and fudds.com ). Worth noting is that seven percent of the domains that use name server group 1 point only to the IP number 69.43.160.151.