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

Results for*.mailings.aramservices.com

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2022-12-10T17:03:57.588	2022-12-10T16:03:56	2023-03-10T16:03:55	mailings.aramservices.com	*.mailings.aramservices.com	C=US, O=Let's Encrypt, CN=R3
2022-12-10T17:03:57.588	2022-12-10T16:03:56	2023-03-10T16:03:55	mailings.aramservices.com	*.mailings.aramservices.com	C=US, O=Let's Encrypt, CN=R3
2022-12-10T17:03:57.139	2022-12-10T16:03:56	2023-03-10T16:03:55	mailings.aramservices.com	*.mailings.aramservices.com	C=US, O=Let's Encrypt, CN=R3
2022-12-10T17:03:57.139	2022-12-10T16:03:56	2023-03-10T16:03:55	mailings.aramservices.com	*.mailings.aramservices.com	C=US, O=Let's Encrypt, CN=R3