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

Results forwww.sparkpost.com

Resolver

Location

A

Name	TTL	Value
www.sparkpost.com	60	3.167.37.15AWS CloudFront (GLOBAL) / Amazon.com, Inc.
www.sparkpost.com	60	3.167.37.36AWS CloudFront (GLOBAL) / Amazon.com, Inc.
www.sparkpost.com	60	3.167.37.55AWS CloudFront (GLOBAL) / Amazon.com, Inc.
www.sparkpost.com	60	3.167.37.129AWS CloudFront (GLOBAL) / Amazon.com, Inc.