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

Results forspf1.emailowl.com

Resolver

Location

TXT

Name	TTL	Value
spf1.emailowl.com	300	v=spf1 ip4:162.243.40.215/32 ip4:198.199.111.6/32 ip4:107.170.11.17/32 ip4:107.170.208.118/32 ip4:188.226.221.25/32 ip4:158.69.102.182/32 ip4:45.63.84.218/32 ip4:207.246.121.203/32 ip4:64.187.97.206/32 ip4:45.63.17.188/32 ip4:107.191.41.169/32 ~all