c.ax5z.com has no CNAME records.
Question and response
Question
dig c.ax5z.com. NS
Answer
The response has no answer records.
Authority
ax5z.com. 287 SOA a.ax5z.com. support.myracloud.com. 2022010101 3600 900 2419200 300
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0