iai-system.com CNAME records

CNAME Canonical name
Apex domains cannot have CNAME records.

Question and response

Question

dig iai-system.com. NS

Answer

iai-system.com. 5 NS dns2.iai-system.com. iai-system.com. 5 NS dns1.iai-system.com.

Authority

The response has no authority records.

Additional

dns1.iai-system.com. 5 A 5.149.162.237 dns2.iai-system.com. 5 A 5.149.163.173 . 0 OPT ; payload 1232, xrcode 0, version 0, flags 0