Apex domains cannot have CNAME records.
Question and response
Question
dig simplicity.ro. NS
Answer
simplicity.ro. 5 NS ns1.simplicity.ro.
simplicity.ro. 5 NS ns2.simplicity.ro.
Authority
The response has no authority records.
Additional
ns1.simplicity.ro. 5 A 188.214.156.18
ns2.simplicity.ro. 5 A 185.99.88.77
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0