b.conoha-dns.org has no CNAME records.
Question and response
Question
dig b.conoha-dns.org. NS
Answer
The response has no answer records.
Authority
conoha-dns.org. 3183 SOA ns1.gmointernet.com. hostmaster.gmo.jp. 2022122300 1800 900 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0