Id.Ebank.Vtc.

dnstree.com

We pick b.root-servers.net, one of the 13 root servers (1), and ask it about ebank.vtc.vn and learn that vn is delegated to seven name servers (2), so we ask d.dns ...

robtex.com

ebank.vtc.vn has one IP number (117.103.200.68), but no corresponding reverse pointer. Vtcebank.vn and www.vtcebank.vn point to the same...