corenetwork.global.ba has no CNAME records.
Question and response
Question
dig corenetwork.global.ba. NS
Answer
The response has no answer records.
Authority
global.ba. 5684 SOA ns.eu-globaldns.com. server.global.ba. 2026022500 86400 7200 1209600 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0