DNS delegation of bankatlantic.com updated: May 22, 2013 7:01:15 AM
Delegation
step
query
auth
servers
1
bankatlantic.com.
.
(h,g,e,j,m,a,d,i,c,l,k,f,b).root-servers.net.
2
bankatlantic.com.
com.
(e,f,g,b,d,h,k,j,i,l,c,a,m).gtld-servers.net.
3
bankatlantic.com.
bankatlantic.com.
(a4,g4,j4,f4,l4,k4).nstld.com.
We pick h.root-servers.net, one of the 13 root servers (1), and ask it about bankatlantic.com and learn that com is delegated to 13 name servers (2), so we ask e.gtld-servers.net where we learn that bankatlantic.com is delegated to six name servers, including a4.nstld.com (3), so we ask that one and get the following answer:
There are several hundred of host names that point only to the IP number 72.13.32.43.
Three quarter of those use the four name servers a4, f4, g4 and l4.nstld.com together, hereafter referred to as "name server group 2", (example: xn--chq82fc55bdpkksf.biz, expectmore.ca and accensor.com ). Worth noting is that every fifth of the domains that use name server group 2 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 more than hundred domains that use name server group 1 point only to the IP number 69.58.181.114 (example: albatross.tv, kcl.tv and kos.tv ).
The four name servers a4, f4, g4 and l4.nstld.com together
There are several hundred of domains that use name server group 2.