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

Results forhostmaster.mountainviewclasses.com

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2025-09-24T08:12:50.412	2025-09-24T07:14:20	2025-12-23T07:14:19	hostmaster.mountainviewclasses.com	hostmaster.mountainviewclasses.com	C=US, O=Let's Encrypt, CN=R13
2025-09-24T08:12:50.29	2025-09-24T07:14:20	2025-12-23T07:14:19	hostmaster.mountainviewclasses.com	hostmaster.mountainviewclasses.com	C=US, O=Let's Encrypt, CN=R13
2025-08-25T18:05:37.679	2025-08-25T17:07:07	2025-11-23T17:07:06	hostmaster.mountainviewclasses.com	hostmaster.mountainviewclasses.com	C=US, O=Let's Encrypt, CN=R13
2025-08-25T18:05:37.429	2025-08-25T17:07:07	2025-11-23T17:07:06	hostmaster.mountainviewclasses.com	hostmaster.mountainviewclasses.com	C=US, O=Let's Encrypt, CN=R13