Apex domains cannot have CNAME records.
Question and response
Question
dig wifian.id. NS
Answer
wifian.id. 5 NS ns1.xconnect.id.
wifian.id. 5 NS ns2.xconnect.id.
Authority
The response has no authority records.
Additional
ns1.xconnect.id. 5 A 103.55.28.100
ns2.xconnect.id. 5 A 103.55.28.100
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0