spf.opt.pf has no CNAME records.
Question and response
Question
dig spf.opt.pf. NS
Answer
The response has no answer records.
Authority
opt.pf. 9413 SOA ns1.vini.pf. system.onati.pf. 2024110401 3600 900 1209600 43200
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0