It can be anything! An apex, subdomain, or even a URL.

Results forwww._u.seanstaffiery.net._spf.smart.ondmarc.com

Resolver

Location

TXT

Name	TTL	Value
www._u.seanstaffiery.net._spf.smart.ondmarc.com	3600	v=spf1 ip4:79.135.106.0/23 ip4:185.70.40.0/23 ip4:109.224.244.0/24 ip4:185.70.43.0/24 ip4:176.119.200.128/31 ip4:185.70.42.128/31 ip4:185.205.70.128/31 ip4:57.129.93.249 ip4:85.9.206.169 ip4:85.9.210.45 ip4:188.114.96.3 ip4:188.114.97.3 ip4:188.165.51.1 39 ip6:2a06:98c1:3120::3 ip6:2a06:98c1:3121::3 ~all