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

Results forstaging.admin.rumo.co

Resolver

Location

A

Name	TTL	Value
staging.admin.rumo.co	60	108.138.85.54AWS CloudFront (GLOBAL) / Amazon.com, Inc.
staging.admin.rumo.co	60	108.138.85.73AWS CloudFront (GLOBAL) / Amazon.com, Inc.
staging.admin.rumo.co	60	108.138.85.105AWS CloudFront (GLOBAL) / Amazon.com, Inc.
staging.admin.rumo.co	60	108.138.85.107AWS CloudFront (GLOBAL) / Amazon.com, Inc.