Apex domains cannot have CNAME records.
Question and response
Question
dig gadenjangtse.org. NS
Answer
gadenjangtse.org. 5 NS ns-1584.awsdns-06.co.uk.
gadenjangtse.org. 5 NS ns-823.awsdns-38.net.
gadenjangtse.org. 5 NS ns-887.awsdns-46.net.
gadenjangtse.org. 5 NS ns-994.awsdns-60.net.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0