Apex domains cannot have CNAME records.
Question and response
Question
dig netprotect.support. NS
Answer
netprotect.support. 1 NS ns2.netprotect.ro.
netprotect.support. 1 NS ns1.netprotect.ro.
Authority
The response has no authority records.
Additional
ns1.netprotect.ro. 1 A 188.214.156.18
ns2.netprotect.ro. 1 A 185.99.88.77
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0