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

Results fors.x.sata.com

Resolver

Location

A

Name	TTL	Value
s.x.sata.com	60	52.85.132.50AWS CloudFront (GLOBAL) / Amazon.com, Inc.
s.x.sata.com	60	52.85.132.91AWS CloudFront (GLOBAL) / Amazon.com, Inc.
s.x.sata.com	60	52.85.132.95AWS CloudFront (GLOBAL) / Amazon.com, Inc.
s.x.sata.com	60	52.85.132.106AWS CloudFront (GLOBAL) / Amazon.com, Inc.