s1123.usc1.mysecurecloudhost.com has no CNAME records.
Question and response
Question
dig s1123.usc1.mysecurecloudhost.com. NS
Answer
The response has no answer records.
Authority
mysecurecloudhost.com. 1599 SOA kirk.ns.cloudflare.com. dns.cloudflare.com. 2398307657 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0