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

Results forwebdisk.bpa.mn

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2021-11-10T17:36:43.125	2021-11-10T00:00:00	2022-02-08T23:59:59	bpa.mn	webdisk.bpa.mn	C=US, ST=TX, L=Houston, O="cPanel, Inc.", CN="cPanel, Inc. Certification Authority"
2021-11-10T17:36:42.49	2021-11-10T00:00:00	2022-02-08T23:59:59	bpa.mn	webdisk.bpa.mn	C=US, ST=TX, L=Houston, O="cPanel, Inc.", CN="cPanel, Inc. Certification Authority"
2021-08-25T18:04:04.58	2021-08-25T00:00:00	2021-11-23T23:59:59	bpa.mn	webdisk.bpa.mn	C=US, ST=TX, L=Houston, O="cPanel, Inc.", CN="cPanel, Inc. Certification Authority"
2021-08-25T18:04:03.876	2021-08-25T00:00:00	2021-11-23T23:59:59	bpa.mn	webdisk.bpa.mn	C=US, ST=TX, L=Houston, O="cPanel, Inc.", CN="cPanel, Inc. Certification Authority"
2021-06-10T18:06:34.733	2021-06-10T00:00:00	2021-09-08T23:59:59	bpa.mn	webdisk.bpa.mn	C=US, ST=TX, L=Houston, O="cPanel, Inc.", CN="cPanel, Inc. Certification Authority"
2021-06-10T18:06:34.34	2021-06-10T00:00:00	2021-09-08T23:59:59	bpa.mn	webdisk.bpa.mn	C=US, ST=TX, L=Houston, O="cPanel, Inc.", CN="cPanel, Inc. Certification Authority"