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

Results forspf.mxg.cloud

Resolver

Location

TXT

Name	TTL	Value
spf.mxg.cloud	150	v=spf1 ip4:185.205.159.195 ip4:162.55.226.16/28 ip4:157.90.72.216/29 ip4:194.164.205.166/32 ip4:202.61.254.6/32 ip6:2a01:4f8:ffc1:100::/56 ip6:2a01:4f8:11d:c00::/56 -all