Apex domains cannot have CNAME records.
Question and response
Question
dig juen.in. NS
Answer
juen.in. 5 NS launch1.spaceship.net.
juen.in. 5 NS launch2.spaceship.net.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0