Apex domains cannot have CNAME records.
Question and response
Question
dig desnet.online. NS
Answer
desnet.online. 5 NS hosting-02.as45302.net.
desnet.online. 5 NS ns4.desnet.id.
desnet.online. 5 NS hosting-04.ptdes.net.
desnet.online. 5 NS hosting-03.ptdes.net.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0