Apex domains cannot have CNAME records.
Question and response
Question
dig powerspf.com. NS
Answer
powerspf.com. 5 NS ns-1411.awsdns-48.org.
powerspf.com. 5 NS ns-363.awsdns-45.com.
powerspf.com. 5 NS ns-749.awsdns-29.net.
powerspf.com. 5 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