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

Results forspf2.exacthosting.com

Resolver

Location

TXT

Name	TTL	Value
spf2.exacthosting.com	1200	v=spf1 ip4:173.199.142.212 ip4:173.199.143.140 ip4:176.126.168.104 ip4:176.126.168.105 ip4:176.126.168.200 ip4:176.126.168.31 ip4:176.126.168.55 ip4:185.67.44.0/24 ip4:192.138.22.0/24 ip4:208.75.148.5 ip4:208.79.235.108 ip4:208.79.235.109 ~all