dns.bd has no CNAME records.
Question and response
Question
dig dns.bd. NS
Answer
The response has no answer records.
Authority
bd. 13204 SOA dns.bd. root.dns.bd. 2024252560 1200 3600 604800 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0