Apex domains cannot have CNAME records.
Question and response
Question
dig bvrequip.com. NS
Answer
bvrequip.com. 3 NS ns-536.awsdns-03.net.
bvrequip.com. 3 NS ns-1497.awsdns-59.org.
bvrequip.com. 3 NS ns-1321.awsdns-37.org.
bvrequip.com. 3 NS ns-1970.awsdns-54.co.uk.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0