ns19092188168.a2dns.com has no CNAME records.
Question and response
Question
dig ns19092188168.a2dns.com. NS
Answer
The response has no answer records.
Authority
a2dns.com. 6864 SOA ns0090.secondary.cloudflare.com. sys.a2hosting.com. 2341945346 14400 7200 1814400 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0