DNS delegation of mail.zamyad.co.ir updated: May 20, 2013 3:23:57 PM
Delegation
step
query
auth
servers
1
mail.zamyad.co.ir.
.
(c,i,f,m,j,e,b,g,h,l,d,k,a).root-servers.net.
2
mail.zamyad.co.ir.
ir.
a.nic.ir. ns.irnic.ir. ns5.univie.ac.at.
3
mail.zamyad.co.ir.
zamyad.co.ir.
(ns1,ns2).dpihosting.com.
We pick c.root-servers.net, one of the 13 root servers (1), and ask it about mail.zamyad.co.ir and learn that ir is delegated to three name servers (2), so we ask a.nic.ir where we learn that zamyad.co.ir is delegated to two name servers, including ns1.dpihosting.com (3), so we ask that one and get the following answer: