DNS delegation of yahoo.dk updated: May 24, 2013 6:32:16 AM
Delegation
step
query
auth
servers
1
yahoo.dk.
.
(c,l,h,g,b,k,m,a,i,f,e,j,d).root-servers.net.
2
yahoo.dk.
dk.
(p,a,c,b,l,s).nic.dk.
3
yahoo.dk.
yahoo.dk.
(ns4,ns3,ns5,ns1).yahoo.com.
We pick c.root-servers.net, one of the 13 root servers (1), and ask it about yahoo.dk and learn that dk is delegated to six name servers (2), so we ask p.nic.dk where we learn that yahoo.dk is delegated to four name servers, including ns4.yahoo.com (3), so we ask that one and get the following answer:
Yahoo.dk is a domain controlled by four domain name servers at yahoo.com. All four of them are on different IP networks. Incoming mail for yahoo.dk is handled by one mail server at yahoodns.net having a total of two IP numbers. Both are on different IP networks. Yahoo.dk has two IP numbers (77.238.178.122, 87.248.120.148). Both are on different IP networks.