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

Results forprep.admin.remundo.com

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2024-06-17T07:59:34.255	2024-06-17T06:59:33	2024-09-15T06:59:32	dev.prep.admin.remundo.com	dev.prep.admin.remundo.com	C=US, O=Let's Encrypt, CN=R10
2024-06-17T07:59:34.079	2024-06-17T06:59:33	2024-09-15T06:59:32	dev.prep.admin.remundo.com	dev.prep.admin.remundo.com	C=US, O=Let's Encrypt, CN=R10
2024-04-03T08:59:08.911	2024-04-03T07:59:08	2024-07-02T07:59:07	dev.prep.admin.remundo.com	dev.prep.admin.remundo.com	C=US, O=Let's Encrypt, CN=R3
2024-04-03T08:59:08.59	2024-04-03T07:59:08	2024-07-02T07:59:07	dev.prep.admin.remundo.com	dev.prep.admin.remundo.com	C=US, O=Let's Encrypt, CN=R3
2024-01-19T09:58:44.064	2024-01-19T08:58:43	2024-04-18T08:58:42	dev.prep.admin.remundo.com	dev.prep.admin.remundo.com	C=US, O=Let's Encrypt, CN=R3
2024-01-19T09:58:43.829	2024-01-19T08:58:43	2024-04-18T08:58:42	dev.prep.admin.remundo.com	dev.prep.admin.remundo.com	C=US, O=Let's Encrypt, CN=R3