Apex domains cannot have CNAME records.
Question and response
Question
dig gazduire.ro. NS
Answer
gazduire.ro. 5 NS ns2.gazduire.ro.
gazduire.ro. 5 NS ns1.gazduire.ro.
gazduire.ro. 5 NS dns.gazduire.ro.
Authority
The response has no authority records.
Additional
dns.gazduire.ro. 5 A 81.181.255.22
ns1.gazduire.ro. 5 A 31.14.23.117
ns2.gazduire.ro. 5 A 37.251.174.2
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0