ns40.wpxhosting.com has no CNAME records.
Question and response
Question
dig ns40.wpxhosting.com. NS
Answer
The response has no answer records.
Authority
wpxhosting.com. 11768 SOA ns1.wpxhosting.com. root.v1.wpxhosting.com. 2026022714 10800 3600 604800 38400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0