dns02.tobila.com has no CNAME records.
Question and response
Question
dig dns02.tobila.com. NS
Answer
The response has no answer records.
Authority
tobila.com. 300 SOA dns01.tobila.com. root.tobila.com. 2026030201 10800 900 604800 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0