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

Results fornotifications._spf.ds.network

Resolver

Location

TXT

Name	TTL	Value
notifications._spf.ds.network	3600	v=spf1 +ip4:27.54.81.128/28 +ip4:176.74.28.48/28 +ip4:203.170.85.103/32 +ip4:203.170.85.104/32 +ip4:203.170.85.105/32 +ip4:203.170.85.106/32 +ip4:176.74.25.185/32 +ip4:176.74.25.186/32 +ip4:176.74.25.188/32 +ip4:176.74.25.189/32 +ip6:2a00:fd80:0:11::/64 + ip4:27.54.80.46/32 +ip4:27.54.80.46/32 +ip4:27.54.84.65/27 +ip4:27.54.84.71/28 +ip4:27.54.84.89/28 +ip4:27.54.82.0/24 +ip4:27.54.80.46/32 +ip4:27.54.80.47/32