Apex domains cannot have CNAME records.
Question and response
Question
dig quorvinta.com. NS
Answer
quorvinta.com. 5 NS ns-997.awsdns-60.net.
quorvinta.com. 5 NS ns-1173.awsdns-18.org.
quorvinta.com. 5 NS ns-1332.awsdns-38.org.
quorvinta.com. 5 NS ns-245.awsdns-30.com.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0