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

Results forhostmaster.spacefours.com

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2025-11-09T12:55:27.957	2025-11-09T11:56:57	2026-02-07T11:56:56	www.hostmaster.spacefours.com	www.hostmaster.spacefours.com	C=US, O=Let's Encrypt, CN=R12
2025-11-09T12:55:27.622	2025-11-09T11:56:57	2026-02-07T11:56:56	www.hostmaster.spacefours.com	www.hostmaster.spacefours.com	C=US, O=Let's Encrypt, CN=R12
2025-11-09T12:55:27.553	2025-11-09T11:56:57	2026-02-07T11:56:56	hostmaster.spacefours.com	hostmaster.spacefours.com	C=US, O=Let's Encrypt, CN=R13
2025-11-09T12:55:27.395	2025-11-09T11:56:57	2026-02-07T11:56:56	hostmaster.spacefours.com	hostmaster.spacefours.com	C=US, O=Let's Encrypt, CN=R13