spf.terranovasite.com has no NS records.
NS records for this zone are defined at terranovasite.com.
NS records for this zone are defined at terranovasite.com.
Question and response
Question
dig spf.terranovasite.com. NS
Answer
The response has no answer records.
Authority
terranovasite.com. 3600 SOA ns1-08.azure-dns.com. tnwebsupport.terranovatraining.com. 2016062133 86400 7200 3600000 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0