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

Results forcode.janmir.app

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2020-05-10T14:16:04.448	2020-05-10T13:16:04	2020-08-08T13:16:04	code.janmir.app	code.janmir.app	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2020-05-10T14:16:04.284	2020-05-10T13:16:04	2020-08-08T13:16:04	code.janmir.app	code.janmir.app	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2020-01-14T12:00:37.001	2020-01-14T11:00:36	2020-04-13T11:00:36	code.janmir.app	code.janmir.app	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2020-01-14T12:00:36.567	2020-01-14T11:00:36	2020-04-13T11:00:36	code.janmir.app	code.janmir.app	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2019-11-02T10:02:44.105	2019-11-02T09:02:43	2020-01-31T09:02:43	code.janmir.app	code.janmir.app	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2019-11-02T10:02:43.901	2019-11-02T09:02:43	2020-01-31T09:02:43	code.janmir.app	code.janmir.app	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2019-09-03T02:40:09.712	2019-09-03T01:40:08	2019-12-02T01:40:08	code.janmir.app	code.janmir.app	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2019-09-03T02:40:08.978	2019-09-03T01:40:08	2019-12-02T01:40:08	code.janmir.app	code.janmir.app	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3