ftp.powerhostbg.com has no CNAME records.
Question and response
Question
dig ftp.powerhostbg.com. NS
Answer
The response has no answer records.
Authority
powerhostbg.com. 4882 SOA ns1.cloud-9d9a1e.managed-vps.net. admin.powerhostbg.com. 2025120479 86400 7200 2400000 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0