Apex domains cannot have CNAME records.
Question and response
Question
dig savviihq.com. NS
Answer
savviihq.com. 5 NS ns-870.awsdns-44.net.
savviihq.com. 5 NS ns-1553.awsdns-02.co.uk.
savviihq.com. 5 NS ns-237.awsdns-29.com.
savviihq.com. 5 NS ns-1466.awsdns-55.org.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0