Apex domains cannot have CNAME records.
Question and response
Question
dig luconsult.ro. NS
Answer
luconsult.ro. 4 NS ns2.luconsult.ro.
luconsult.ro. 4 NS ns.luconsult.ro.
luconsult.ro. 4 NS ns3.luconsult.ro.
Authority
The response has no authority records.
Additional
ns.luconsult.ro. 4 A 195.62.95.10
ns2.luconsult.ro. 4 A 89.149.27.11
ns3.luconsult.ro. 4 A 195.85.239.5
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0