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

Results forcrt.e3m01.eu.amazontrust.com

Resolver

Location

A

Name	TTL	Value
crt.e3m01.eu.amazontrust.com	60	18.165.83.20AWS CloudFront (GLOBAL) / Amazon.com, Inc.
crt.e3m01.eu.amazontrust.com	60	18.165.83.22AWS CloudFront (GLOBAL) / Amazon.com, Inc.
crt.e3m01.eu.amazontrust.com	60	18.165.83.34AWS CloudFront (GLOBAL) / Amazon.com, Inc.
crt.e3m01.eu.amazontrust.com	60	18.165.83.76AWS CloudFront (GLOBAL) / Amazon.com, Inc.