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

Results forhostmaster.rollofthunder.com

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2025-11-12T21:19:27.661	2025-11-12T20:20:55	2026-02-10T20:20:54	www.hostmaster.rollofthunder.com	www.hostmaster.rollofthunder.com	C=US, O=Let's Encrypt, CN=R13
2025-11-12T21:19:25.553	2025-11-12T20:20:55	2026-02-10T20:20:54	www.hostmaster.rollofthunder.com	www.hostmaster.rollofthunder.com	C=US, O=Let's Encrypt, CN=R13
2025-11-08T05:32:26.83	2025-11-08T04:33:55	2026-02-06T04:33:54	hostmaster.rollofthunder.com	hostmaster.rollofthunder.com	C=US, O=Let's Encrypt, CN=R12
2025-11-08T05:32:26.06	2025-11-08T04:33:55	2026-02-06T04:33:54	hostmaster.rollofthunder.com	hostmaster.rollofthunder.com	C=US, O=Let's Encrypt, CN=R12
2025-05-19T13:19:34.754	2025-05-19T12:21:04	2025-08-17T12:21:03	hostmaster.rollofthunder.com	hostmaster.rollofthunder.com	C=US, O=Let's Encrypt, CN=R11
2025-05-19T13:19:34.514	2025-05-19T12:21:04	2025-08-17T12:21:03	hostmaster.rollofthunder.com	hostmaster.rollofthunder.com	C=US, O=Let's Encrypt, CN=R11