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

Results forrpki.cernet.net

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2025-10-15T08:10:37.583	2025-10-15T07:12:07	2026-01-13T07:12:06	*.cernet.net	*.cernet.net	C=US, O=Let's Encrypt, CN=R12
2025-10-15T08:10:37.242	2025-10-15T07:12:07	2026-01-13T07:12:06	*.cernet.net	*.cernet.net	C=US, O=Let's Encrypt, CN=R12
2025-10-10T03:27:38.792	2025-10-10T02:29:08	2026-01-08T02:29:07	rpki.cernet.net	rpki.cernet.net	C=US, O=Let's Encrypt, CN=R13
2025-10-10T03:27:38.633	2025-10-10T02:29:08	2026-01-08T02:29:07	rpki.cernet.net	rpki.cernet.net	C=US, O=Let's Encrypt, CN=R13
2025-10-09T09:12:23.543	2025-10-09T08:13:53	2026-01-07T08:13:52	rpki.cernet.net	rpki.cernet.net	C=US, O=Let's Encrypt, CN=E8
2025-10-09T09:12:23.366	2025-10-09T08:13:53	2026-01-07T08:13:52	rpki.cernet.net	rpki.cernet.net	C=US, O=Let's Encrypt, CN=E8