Apex domains cannot have CNAME records.
Question and response
Question
dig cgs-cimb.com. NS
Answer
cgs-cimb.com. 5 NS 3.140.118.214.
cgs-cimb.com. 5 NS 52.14.213.208.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0