Apex domains cannot have CNAME records.
Question and response
Question
dig hulsenv.com. NS
Answer
hulsenv.com. 1 NS ns-121.awsdns-15.com.
hulsenv.com. 1 NS ns-1081.awsdns-07.org.
hulsenv.com. 1 NS ns-1016.awsdns-63.net.
hulsenv.com. 1 NS ns-694.awsdns-22.net.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0