spf7.ninjaone.com has no NS records.
NS records for this zone are defined at ninjaone.com.
NS records for this zone are defined at ninjaone.com.
Question and response
Question
dig spf7.ninjaone.com. NS
Answer
The response has no answer records.
Authority
ninjaone.com. 900 SOA ns-566.awsdns-06.net. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0