fallback.arnsbogroup.com has no CNAME records.
Question and response
Question
dig fallback.arnsbogroup.com. NS
Answer
The response has no answer records.
Authority
arnsbogroup.com. 294 SOA ns1.wannafind.dk. hostmaster.wannafind.dk. 2025102902 14400 3600 1209600 300
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0