DNS delegation of www.3pic.com updated: Jun 19, 2013 1:34:14 AM
Delegation
step
query
auth
servers
1
www.3pic.com.
.
(b,d,j,l,e,m,c,g,k,i,a,h,f).root-servers.net.
2
www.3pic.com.
com.
(k,a,j,l,c,h,e,d,f,m,g,b,i).gtld-servers.net.
3
www.3pic.com.
3pic.com.
(ns0,ns1).reflected.net.
4
3pic.com.
3pic.com.
(ns1,ns0).reflected.net.
We pick b.root-servers.net, one of the 13 root servers (1), and ask it about www.3pic.com and learn that com is delegated to 13 name servers (2), so we ask k.gtld-servers.net where we learn that 3pic.com is delegated to two name servers, including ns0.reflected.net (3), so we ask that one where we see a CNAME from www.3pic.com to 3pic.com, so we have to start all over again. We already know that ns1.reflected.net is authoritative for 3pic.com (4) and ask it about 3pic.com and get the following answer: