Apex domains cannot have CNAME records.
Question and response
Question
dig ns.gosecure.net. NS
Answer
ns.gosecure.net. 5 NS ns-1268.awsdns-30.org.
ns.gosecure.net. 5 NS ns-1814.awsdns-34.co.uk.
ns.gosecure.net. 5 NS ns-453.awsdns-56.com.
ns.gosecure.net. 5 NS ns-646.awsdns-16.net.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0