DNS delegation of k.vicvideo.com updated: Jun 20, 2013 3:40:41 AM
Delegation
step
query
auth
servers
1
k.vicvideo.com.
.
(j,e,g,l,i,k,m,f,b,a,c,h,d).root-servers.net.
2
k.vicvideo.com.
com.
(c,k,m,e,h,l,b,g,i,d,a,j,f).gtld-servers.net.
3
k.vicvideo.com.
vicvideo.com.
(b,a).ns36.de.
We pick j.root-servers.net, one of the 13 root servers (1), and ask it about k.vicvideo.com and learn that com is delegated to 13 name servers (2), so we ask c.gtld-servers.net where we learn that vicvideo.com is delegated to two name servers, including b.ns36.de (3), so we ask that one and get the following answer:
At least one of them use the two name servers ns09 and ns10.domaincontrol.com together, hereafter referred to as "name server group 2".
The IP number 82.98.86.175 only
There are several thousand of host names that point only to the IP number 82.98.86.175.
Three quarter of those use name server group 1 (example: videocliponline.com, aoao.net and www.feoo.com ). Worth noting is that seven percent of the domains that use name server group 1 point only to the IP number 82.98.86.175.