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

Results forspf.lynt.cz

Resolver

Location

TXT

Name	TTL	Value
spf.lynt.cz	300	v=spf1 ip4:49.12.84.160 ip4:62.240.162.14 ip4:46.167.209.28/30 ip4:45.76.82.51 ip4:93.91.51.172 ip4:37.235.105.164 ip6:2a01:28:ca:112::1:624 ip4:178.63.60.248 ip4:49.12.84.160 ip4:49.12.84.162 ip4:49.12.148.152 ip4:49.12.148.156 ip4:217.16.188.5 ip6:2a01: 4f8:2200:45a7::/6 4 ip6:2a01:4f8:120:9239::/64 ip6:2a01:4f8:2190:10c7::/64 -all