Apex domains cannot have CNAME records.
Question and response
Question
dig decipherinc.com. NS
Answer
decipherinc.com. 3 NS ns-749.awsdns-29.net.
decipherinc.com. 3 NS ns-474.awsdns-59.com.
decipherinc.com. 3 NS ns-1962.awsdns-53.co.uk.
decipherinc.com. 3 NS ns-1292.awsdns-33.org.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0