DNS delegation of www.pornorama.com updated: Jun 18, 2013 11:45:30 PM
Delegation
step
query
auth
servers
1
www.pornorama.com.
.
(e,l,k,j,b,h,c,g,d,f,m,a,i).root-servers.net.
2
www.pornorama.com.
com.
(c,d,f,l,e,a,b,m,i,g,k,h,j).gtld-servers.net.
3
www.pornorama.com.
pornorama.com.
(ns4,ns2,ns3,ns1).serverstack.com.
4
pornorama.com.
pornorama.com.
(ns1,ns4,ns3,ns2).serverstack.com.
We pick e.root-servers.net, one of the 13 root servers (1), and ask it about www.pornorama.com and learn that com is delegated to 13 name servers (2), so we ask c.gtld-servers.net where we learn that pornorama.com is delegated to four name servers, including ns4.serverstack.com (3), so we ask that one where we see a CNAME from www.pornorama.com to pornorama.com, so we have to start all over again. We already know that ns1.serverstack.com is authoritative for pornorama.com (4) and ask it about pornorama.com and get the following answer:
Two of them use only the mail server pornorama.com. Worth noting is that all of the domains that only use the mail server pornorama.com point to IP group 1.