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

Results for*.bat.erickambassadors.com

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2020-06-27T11:12:59.226	2020-06-27T10:12:58	2020-09-25T10:12:58	erickambassadors.com	*.bat.erickambassadors.com	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2020-06-27T11:12:59.226	2020-06-27T10:12:58	2020-09-25T10:12:58	erickambassadors.com	*.bat.erickambassadors.com	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2020-06-27T11:12:59.009	2020-06-27T10:12:58	2020-09-25T10:12:58	erickambassadors.com	*.bat.erickambassadors.com	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2020-06-27T11:12:59.009	2020-06-27T10:12:58	2020-09-25T10:12:58	erickambassadors.com	*.bat.erickambassadors.com	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3