mailgw.jp CNAME records

CNAME Canonical name
Apex domains cannot have CNAME records.

Question and response

Question

dig mailgw.jp. NS

Answer

mailgw.jp. 4 NS ns2.gao.ne.jp. mailgw.jp. 4 NS ns1.gao.ne.jp.

Authority

The response has no authority records.

Additional

ns1.gao.ne.jp. 4 A 203.133.238.124 ns2.gao.ne.jp. 4 A 210.171.0.127 . 0 OPT ; payload 1232, xrcode 0, version 0, flags 0