web14.btactic.net has no CNAME records.
Question and response
Question
dig web14.btactic.net. NS
Answer
The response has no answer records.
Authority
btactic.net. 10800 SOA dns17.ovh.net. tech.ovh.net. 2026022000 86400 3600 3600000 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0