DNS delegation of www.vmboom.com updated: May 23, 2013 9:31:28 AM
Delegation
step
query
auth
servers
1
www.vmboom.com.
.
(c,f,m,j,e,k,d,h,a,l,b,i,g).root-servers.net.
2
www.vmboom.com.
com.
(l,m,j,b,g,i,f,k,d,a,e,h,c).gtld-servers.net.
3
www.vmboom.com.
vmboom.com.
(ns42,ns41).domaincontrol.com.
4
vmboom.com.
vmboom.com.
(ns42,ns41).domaincontrol.com.
We pick c.root-servers.net, one of the 13 root servers (1), and ask it about www.vmboom.com and learn that com is delegated to 13 name servers (2), so we ask l.gtld-servers.net where we learn that vmboom.com is delegated to two name servers, including ns42.domaincontrol.com (3), so we ask that one where we see a CNAME from www.vmboom.com to vmboom.com, so we have to start all over again. We already know that ns42.domaincontrol.com is authoritative for vmboom.com (4) and ask it about vmboom.com and get the following answer: