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

Results forprox.rg.net

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2024-09-19T01:09:33.797	2024-09-19T00:11:02	2024-12-18T00:11:01	prox.rg.net	prox.rg.net	C=US, O=Let's Encrypt, CN=R11
2024-09-19T01:09:33.248	2024-09-19T00:11:02	2024-12-18T00:11:01	prox.rg.net	prox.rg.net	C=US, O=Let's Encrypt, CN=R11
2024-07-20T05:33:28.105	2024-07-20T04:33:27	2024-10-18T04:33:26	prox.rg.net	prox.rg.net	C=US, O=Let's Encrypt, CN=R11
2024-07-20T05:33:27.881	2024-07-20T04:33:27	2024-10-18T04:33:26	prox.rg.net	prox.rg.net	C=US, O=Let's Encrypt, CN=R11
2024-05-20T04:09:33.445	2024-05-20T03:09:32	2024-08-18T03:09:31	prox.rg.net	prox.rg.net	C=US, O=Let's Encrypt, CN=R3
2024-05-20T04:09:32.859	2024-05-20T03:09:32	2024-08-18T03:09:31	prox.rg.net	prox.rg.net	C=US, O=Let's Encrypt, CN=R3