Apex domains cannot have CNAME records.
Question and response
Question
dig econmacro.com. NS
Answer
econmacro.com. 3 NS ns-141.awsdns-17.com.
econmacro.com. 3 NS ns-580.awsdns-08.net.
econmacro.com. 3 NS ns-395.awsdns-49.com.
econmacro.com. 3 NS ns-1259.awsdns-29.org.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0