Apex domains cannot have CNAME records.
Question and response
Question
dig ns2.infokreasindo.co.id. NS
Answer
ns2.infokreasindo.co.id. 5 NS ns2.infokreasindo.co.id.
ns2.infokreasindo.co.id. 5 NS ns1.infokreasindo.co.id.
Authority
The response has no authority records.
Additional
ns1.infokreasindo.co.id. 5 A 194.233.77.221
ns2.infokreasindo.co.id. 5 A 207.148.77.228
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0