Apex domains cannot have CNAME records.
Question and response
Question
dig yvmnow.com. NS
Answer
yvmnow.com. 5 NS ns-367.awsdns-45.com.
yvmnow.com. 5 NS ns-671.awsdns-19.net.
yvmnow.com. 5 NS ns-852.awsdns-42.net.
yvmnow.com. 5 NS ns-1422.awsdns-49.org.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0