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

Results fortest.discuna.com

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2023-03-03T04:04:34.023	2023-03-03T03:04:33	2023-06-01T03:04:32	test.discuna.com	test.discuna.com	C=US, O=Let's Encrypt, CN=R3
2023-03-03T04:04:33.79	2023-03-03T03:04:33	2023-06-01T03:04:32	test.discuna.com	test.discuna.com	C=US, O=Let's Encrypt, CN=R3
2023-01-01T01:57:26.159	2023-01-01T00:57:25	2023-04-01T00:57:24	test.discuna.com	test.discuna.com	C=US, O=Let's Encrypt, CN=R3
2023-01-01T01:57:26.08	2023-01-01T00:57:25	2023-04-01T00:57:24	test.discuna.com	test.discuna.com	C=US, O=Let's Encrypt, CN=R3
2022-11-02T00:38:20.247	2022-11-01T23:38:19	2023-01-30T23:38:18	test.discuna.com	test.discuna.com	C=US, O=Let's Encrypt, CN=R3
2022-11-02T00:38:20.026	2022-11-01T23:38:19	2023-01-30T23:38:18	test.discuna.com	test.discuna.com	C=US, O=Let's Encrypt, CN=R3
2022-09-02T14:11:51.333	2022-09-02T13:11:50	2022-12-01T13:11:49	test.discuna.com	test.discuna.com	C=US, O=Let's Encrypt, CN=R3
2022-09-02T14:11:51.027	2022-09-02T13:11:50	2022-12-01T13:11:49	test.discuna.com	test.discuna.com	C=US, O=Let's Encrypt, CN=R3