DNS delegation of superhry.cz updated: Jun 19, 2013 9:52:52 PM
Delegation
step
query
auth
servers
1
superhry.cz.
.
(f,b,j,g,m,c,k,e,l,a,i,d,h).root-servers.net.
2
superhry.cz.
cz.
(c,b,d,f,a).ns.nic.cz.
3
superhry.cz.
superhry.cz.
(ns1,ns2).vshosting.cz.
We pick f.root-servers.net, one of the 13 root servers (1), and ask it about superhry.cz and learn that cz is delegated to five name servers (2), so we ask c.ns.nic.cz where we learn that superhry.cz is delegated to two name servers, including ns1.vshosting.cz (3), so we ask that one and get the following answer:
Every fifth of them use only the mail server posta2.vshosting.cz. Worth noting is that one quarter of the domains that only use the mail server posta2.vshosting.cz use name server group 1.
One quarter of them use name server group 1 (example: mahee.com, warezblog.cz and boxingduel.com ). Worth noting is that about one in six of the domains that use name server group 1 use only the mail server posta2.vshosting.cz.