gw1.cspire.com has no CNAME records.
Question and response
Question
dig gw1.cspire.com. NS
Answer
The response has no answer records.
Authority
cspire.com. 1800 SOA alexia.ns.cloudflare.com. dns.cloudflare.com. 2398202926 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0