spf.rspread.net has no NS records.
NS records for this zone are defined at rspread.net.
NS records for this zone are defined at rspread.net.
Question and response
Question
dig spf.rspread.net. NS
Answer
The response has no answer records.
Authority
rspread.net. 86400 SOA ns1.onlydomains.com. root.onlydomains.com. 2021031601 28800 7200 604800 86400
Additional
. 0 OPT ; payload 1680, xrcode 0, version 0, flags 0