DNS delegation of root-servers.tv updated: May 21, 2013 7:00:42 AM
Delegation
step
query
auth
servers
1
root-servers.tv.
.
(m,e,g,c,i,d,k,b,a,h,f,l,j).root-servers.net.
2
root-servers.tv.
tv.
(l5,f5,h5,g5,a5,d5,c5).nstld.com.
3
root-servers.tv.
root-servers.tv.
(g4,a4,f4,l4).nstld.com.
We pick m.root-servers.net, one of the 13 root servers (1), and ask it about root-servers.tv and learn that tv is delegated to seven name servers (2), so we ask l5.nstld.com where we learn that root-servers.tv is delegated to four name servers, including g4.nstld.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 72.13.32.43 use the four name servers a4, f4, g4 and l4.nstld.com together, hereafter referred to as "name server group 1", (example: aolhomeworkhelp.com, london-taxi-cab.com and uptownangus.com ). Worth noting is that a third of the domains that use name server group 1 point only to the IP number 72.13.32.43.
The seven name servers a4, f4, g4, h4, j4, k4 and l4.nstld.com together
A third of the several thousand of domains that use the seven name servers a4, f4, g4, h4, j4, k4 and l4.nstld.com together, hereafter referred to as "name server group 2", point only to the IP number 69.58.181.114 (example: ofp.tv, bidup.tv and vat.tv ).
The name server l4.nstld.com
There are several thousand of domains that use the name server l4.nstld.com.
