bz.fibernetwork.ro has no CNAME records.
Question and response
Question
dig bz.fibernetwork.ro. NS
Answer
The response has no answer records.
Authority
fibernetwork.ro. 6054 SOA ns1.tvsatrm.ro. ionut.digitalnetwork.ro. 2022021001 28800 7200 604800 48600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0