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

Results forspf2.haulware.com

Resolver

Location

TXT

Name	TTL	Value
spf2.haulware.com	3600	v=spf1 ip4:44.202.169.0/24 ip4:192.254.190.13 ip4:198.57.247.161 ip4:192.185.145.239 ip4:192.185.66.3 ip4:23.251.224.0/19 ip4:199.255.192.0/22 ip4:199.127.232.0/22 ~all