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

Results forwww.notariesbyzipcode.com

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2023-06-21T10:12:18.569	2023-06-21T09:12:18	2023-09-19T09:12:17	www.notariesbyzipcode.com	www.notariesbyzipcode.com	C=US, O=Let's Encrypt, CN=R3
2023-06-21T10:12:18.482	2023-06-21T09:12:18	2023-09-19T09:12:17	www.notariesbyzipcode.com	www.notariesbyzipcode.com	C=US, O=Let's Encrypt, CN=R3
2019-03-13T14:35:56.013	2019-03-13T13:35:55	2019-06-11T13:35:55	wizzbang.org	www.notariesbyzipcode.com	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2019-03-13T14:35:55.214	2019-03-13T13:35:55	2019-06-11T13:35:55	wizzbang.org	www.notariesbyzipcode.com	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3