Apex domains cannot have CNAME records.
Question and response
Question
dig daihoichemgio.com. NS
Answer
daihoichemgio.com. 5 NS ns-224.awsdns-28.com.
daihoichemgio.com. 5 NS ns-697.awsdns-23.net.
daihoichemgio.com. 5 NS ns-410.awsdns-51.com.
daihoichemgio.com. 5 NS ns-1263.awsdns-29.org.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0