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

Results forgo.comitas.es

Name	TTL	Value
go.comitas.es	3600	18.184.197.212AWS EC2 (eu-central-1) / Amazon Technologies Inc.
go.comitas.es	3600	52.59.165.42AWS EC2 (eu-central-1) / Amazon Technologies Inc.