Apex domains cannot have CNAME records.
Question and response
Question
dig youflexxa.com. NS
Answer
youflexxa.com. 5 NS ns1.youflexxa.com.
youflexxa.com. 5 NS ns2.youflexxa.com.
Authority
The response has no authority records.
Additional
ns1.youflexxa.com. 5 A 54.39.48.105
ns2.youflexxa.com. 5 A 51.79.121.204
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0