Apex domains cannot have CNAME records.
Question and response
Question
dig encrypttitan.io. NS
Answer
encrypttitan.io. 5 NS ns-1503.awsdns-59.org.
encrypttitan.io. 5 NS ns-405.awsdns-50.com.
encrypttitan.io. 5 NS ns-919.awsdns-50.net.
encrypttitan.io. 5 NS ns-1764.awsdns-28.co.uk.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0