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

Results for_netblocks.net.hostasaurus.com

Resolver

Location

TXT

Name	TTL	Value
_netblocks.net.hostasaurus.com	3600	�v=spf1 ip4:199.48.232.0/21 ip4:199.180.80.0/22 ip4:199.187.184.0/22 ip4:204.10.64.0/21 ip4:204.15.120.0/21 ip4:208.77.48.0/21 ip4:216.188.128.0/18 ip4:209.132.0.0/17 ip4:216.188.0.0/17 ip6:2607:4d00::/32 ~all