dmx1.bfi0.com has no NS records.
NS records for this zone are defined at bfi0.com.
NS records for this zone are defined at bfi0.com.
Question and response
Question
dig dmx1.bfi0.com. NS
Answer
The response has no answer records.
Authority
bfi0.com. 43200 SOA a1-108.akam.net. netadmin.epsilon.com. 2019011704 3600 300 604800 43200
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0