thpttanphu.com CNAME records

CNAME Canonical name
Apex domains cannot have CNAME records.

Question and response

Question

dig thpttanphu.com. NS

Answer

thpttanphu.com. 5 NS ns1.thpttanphu.com. thpttanphu.com. 5 NS ns2.thpttanphu.com.

Authority

The response has no authority records.

Additional

ns1.thpttanphu.com. 5 A 138.128.171.42 ns2.thpttanphu.com. 5 A 138.128.171.43 . 0 OPT ; payload 1232, xrcode 0, version 0, flags 0