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

Results for_spf.inetadmin.eu

Resolver

Location

TXT

Name	TTL	Value
_spf.inetadmin.eu	3600	v=spf1 ip4:109.74.156.0/24 ip6:2a01:390:1:2:0:0:0:0/64 ip4:109.74.149.141 ip6:2a01:390:1:0:225:90ff:fe6b:7b64 ip4:81.89.54.115 ip4:46.229.224.0/24 ip4:46.229.237.0/24 ip4:86.110.233.0/24 ip4:93.184.66.0/24 ?all