We pick m.root-servers.net, one of the 13 root servers (1), and ask it about www.ngoisao.net and learn that net is delegated to 13 name servers (2), so we ask k.gtld-servers.net where we learn that ngoisao.net is delegated to two name servers, including ns2.gate.vn (3), so we ask that one where we see a CNAME from www.ngoisao.net to ngoisao.net, so we have to start all over again. We already know that ns1.gate.vn is authoritative for ngoisao.net (4) and ask it about ngoisao.net and get the following answer:
Www.ngoisao.net is ranked #2327 world wide as ngoisao.net and is hosted on two servers in Herndon, VA, United States. It has gained 4368 inlinks over a period of nine years. It has 52 organic keywords.