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

Results forspf.discoursehosting.com

Resolver

Location

TXT

Name	TTL	Value
spf.discoursehosting.com	300	v=spf1 ip4:37.34.63.212/32 ip4:37.34.62.4/32 ip4:159.65.175.21/32 ip4:198.7.57.64/32 ip4:46.165.236.111/32 ip4:46.165.252.193/32 ip4:37.58.63.184/32 ip4:84.16.227.224/32 ip4:62.212.70.8/32 ~all