srv-avl.advancedserverdns.com has no CNAME records.
Question and response
Question
dig srv-avl.advancedserverdns.com. NS
Answer
The response has no answer records.
Authority
advancedserverdns.com. 1589 SOA gabe.ns.cloudflare.com. dns.cloudflare.com. 2398144655 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0