ns3.mgnhost.com has no CNAME records.
Question and response
Question
dig ns3.mgnhost.com. NS
Answer
The response has no answer records.
Authority
mgnhost.com. 3347 SOA mgnhost.com. support.mgnhost.com. 2022090537 3600 3600 604800 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0