b.ns.ro has no CNAME records.
Question and response
Question
dig b.ns.ro. NS
Answer
The response has no answer records.
Authority
ns.ro. 7538 SOA dns1.nshost.ro. cpanel.nshost.ro. 2026022507 3600 1800 1209600 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0