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

Results forgo.yadada.app

Resolver

Location

A

Name	TTL	Value
go.yadada.app	1800	151.101.1.195Fastly, Inc.
go.yadada.app	1800	151.101.65.195Fastly, Inc.

Name	TTL	Value
go.yadada.app	1800	google-site-verification=OorIoWKNDvDoUj0Q3sC5XwlvND-nxZ6rkOLiaWwB_GM