Apex domains cannot have CNAME records.
Question and response
Question
dig somaruna.com. NS
Answer
somaruna.com. 4 NS ns-429.awsdns-53.com.
somaruna.com. 4 NS ns-827.awsdns-39.net.
somaruna.com. 4 NS ns-1687.awsdns-18.co.uk.
somaruna.com. 4 NS ns-1740.awsdns-25.co.uk.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0