spf.opt.pf has no NS records.
NS records for this zone are defined at opt.pf.
NS records for this zone are defined at opt.pf.
Question and response
Question
dig spf.opt.pf. NS
Answer
The response has no answer records.
Authority
opt.pf. 43200 SOA ns1.vini.pf. system.onati.pf. 2024110401 3600 900 1209600 43200
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0