Apex domains cannot have CNAME records.
Question and response
Question
dig unear.net. NS
Answer
unear.net. 5 NS ns-45.awsdns-05.com.
unear.net. 5 NS ns-598.awsdns-10.net.
unear.net. 5 NS ns-1521.awsdns-62.org.
unear.net. 5 NS ns-1577.awsdns-05.co.uk.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0