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

Results forrelay.pair.com

Resolver

Location

A

Name	TTL	Value
relay.pair.com	300	209.68.5.64pair Networks

Name	TTL	Value
relay.pair.com	300	50 relay.pair.com

Name	TTL	Value
relay.pair.com	300	v=spf1 ip4:66.39.136.37 ip4:216.92.238.7 ip4:216.92.240.53 ip4:216.92.218.55 ip4:216.92.119.18 ip4:66.39.23.13 ip4:216.92.250.21 ip4:216.92.150.20 ip4:216.92.216.48 ip4:216.92.118.10 ip4:216.146.198.19 ip4:216.146.196.19 ip4:216.146.199.78 ip4:216.146.193 .57 ip4:216.146.197.70 ip4:216.92.139.22 ip4:216.92.154.10 ip4:216.92.59.40 ip4:216.92.185.11 ip4:216.92.37.53 ~all