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

Results forcdn.biddex.com

Resolver

Location

A

Name	TTL	Value
cdn.biddex.com	60	18.160.10.24AWS CloudFront (GLOBAL) / Amazon.com, Inc.
cdn.biddex.com	60	18.160.10.36AWS CloudFront (GLOBAL) / Amazon.com, Inc.
cdn.biddex.com	60	18.160.10.40AWS CloudFront (GLOBAL) / Amazon.com, Inc.
cdn.biddex.com	60	18.160.10.59AWS CloudFront (GLOBAL) / Amazon.com, Inc.