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

Results for_spfblock1.afilias.tech

Resolver

Location

TXT

Name	TTL	Value
_spfblock1.afilias.tech	300	v=spf1 mx ip4:52.52.218.47/32 ip6:2600:1f1c:f70:7000:aed8:774:e4f7:7fd1/128 ip4:174.129.248.164/32 ip4:23.253.99.107/32 ip4:52.29.148.223/32 ip4:52.29.105.221/32 ip4:52.5.176.76/32 ip4:89.101.149.144/29 ip4:3.80.0.192/32 ip4:99.80.187.242/32 ~all