DNS delegation of y7ahoo.com updated: May 25, 2013 6:13:17 AM
We pick l.root-servers.net, one of the 13 root servers (1), and ask it about y7ahoo.com and learn that com is delegated to 13 name servers (2), so we ask j.gtld-servers.net where we learn that y7ahoo.com is delegated to six name servers, including ns2.yahoo.com (3), so we ask that one and get the following answer:
Y7ahoo.com is a domain controlled by four domain name servers at yahoo.com. All four of them are on different IP networks. Incoming mail for y7ahoo.com is handled by one mail server at .. We are missing the IP:s of one server: ..