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

Results forcdn.sendsteps.com

Resolver

Location

A

Name	TTL	Value
cdn.sendsteps.com	60	13.35.78.9AWS CloudFront (GLOBAL) / Amazon.com, Inc.
cdn.sendsteps.com	60	13.35.78.40AWS CloudFront (GLOBAL) / Amazon.com, Inc.
cdn.sendsteps.com	60	13.35.78.52AWS CloudFront (GLOBAL) / Amazon.com, Inc.
cdn.sendsteps.com	60	13.35.78.94AWS CloudFront (GLOBAL) / Amazon.com, Inc.