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

Results forhostmaster.computerduster.com

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2025-11-10T17:22:16.566	2025-11-10T16:23:44	2026-02-08T16:23:43	hostmaster.computerduster.com	hostmaster.computerduster.com	C=US, O=Let's Encrypt, CN=R13
2025-11-10T17:22:14.466	2025-11-10T16:23:44	2026-02-08T16:23:43	hostmaster.computerduster.com	hostmaster.computerduster.com	C=US, O=Let's Encrypt, CN=R13
2023-01-17T18:10:15.84	2023-01-17T17:10:15	2023-04-17T17:10:14	computerduster.com	*.computerduster.com	C=US, O=Let's Encrypt, CN=R3
2023-01-17T18:10:15.568	2023-01-17T17:10:15	2023-04-17T17:10:14	computerduster.com	*.computerduster.com	C=US, O=Let's Encrypt, CN=R3
2022-11-18T16:08:55.665	2022-11-18T15:08:54	2023-02-16T15:08:53	computerduster.com	*.computerduster.com	C=US, O=Let's Encrypt, CN=R3
2022-11-18T16:08:54.935	2022-11-18T15:08:54	2023-02-16T15:08:53	computerduster.com	*.computerduster.com	C=US, O=Let's Encrypt, CN=R3