Apex domains cannot have CNAME records.
Question and response
Question
dig zeravonix.org. NS
Answer
zeravonix.org. 5 NS ns-700.awsdns-23.net.
zeravonix.org. 5 NS ns-1520.awsdns-62.org.
zeravonix.org. 5 NS ns-213.awsdns-26.com.
zeravonix.org. 5 NS ns-1016.awsdns-63.net.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0