terra.bbbell.com has no CNAME records.
Question and response
Question
dig terra.bbbell.com. NS
Answer
The response has no answer records.
Authority
bbbell.com. 10754 SOA dns1.bbbell.it. hostmaster.bbbell.it. 2026020401 28800 2400 604800 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0