Apex domains cannot have CNAME records.
Question and response
Question
dig zyquorventa.com. NS
Answer
zyquorventa.com. 5 NS ns-908.awsdns-49.net.
zyquorventa.com. 5 NS ns-1758.awsdns-27.co.uk.
zyquorventa.com. 5 NS ns-77.awsdns-09.com.
zyquorventa.com. 5 NS ns-627.awsdns-14.net.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0