vm1930051.example.com has no CNAME records.
Question and response
Question
dig vm1930051.example.com. NS
Answer
The response has no answer records.
Authority
example.com. 1572 SOA elliott.ns.cloudflare.com. dns.cloudflare.com. 2397268091 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0