DNS delegation of a1sod.com updated: May 24, 2013 11:21:20 PM
Delegation
step
query
auth
servers
1
a1sod.com.
.
(a,d,g,b,c,k,l,m,h,i,f,e,j).root-servers.net.
2
a1sod.com.
com.
(k,a,i,d,j,m,g,c,b,h,f,e,l).gtld-servers.net.
3
a1sod.com.
a1sod.com.
(ns8,ns9).san.yahoo.com.
We pick a.root-servers.net, one of the 13 root servers (1), and ask it about a1sod.com and learn that com is delegated to 13 name servers (2), so we ask k.gtld-servers.net where we learn that a1sod.com is delegated to two name servers, including ns8.san.yahoo.com (3), so we ask that one and get the following answer:
A1sod.com is a domain controlled by two domain name servers at yahoo.com. Both are on different IP networks. Incoming mail for a1sod.com is handled by two mail servers also at yahoo.com having a total of two IP numbers. There are two duplicated IP numbers. Both are on different IP networks. A1sod.com has one IP number (98.139.134.174), but the reverse is p9p.geo.vip.bf1.yahoo.com.