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

Results forwebmail.mwp-manager.oderland.org

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2022-10-12T11:51:08.617	2022-10-12T10:51:08	2023-01-10T10:51:07	mwp-manager.oderland.org	mwp-manager.oderland.org	C=US, O=Let's Encrypt, CN=R3
2022-10-12T11:51:08.342	2022-10-12T10:51:08	2023-01-10T10:51:07	mwp-manager.oderland.org	mwp-manager.oderland.org	C=US, O=Let's Encrypt, CN=R3
2022-10-12T11:50:33.921	2022-10-12T00:00:00	2023-01-10T23:59:59	mwp-manager.oderland.org	webmail.mwp-manager.oderland.org	C=US, ST=TX, L=Houston, O="cPanel, Inc.", CN="cPanel, Inc. Certification Authority"
2022-10-12T11:50:33.921	2022-10-12T00:00:00	2023-01-10T23:59:59	mwp-manager.oderland.org	mwp-manager.oderland.org	C=US, ST=TX, L=Houston, O="cPanel, Inc.", CN="cPanel, Inc. Certification Authority"
2022-10-12T11:50:32.8	2022-10-12T00:00:00	2023-01-10T23:59:59	mwp-manager.oderland.org	webmail.mwp-manager.oderland.org	C=US, ST=TX, L=Houston, O="cPanel, Inc.", CN="cPanel, Inc. Certification Authority"
2022-10-12T11:50:32.8	2022-10-12T00:00:00	2023-01-10T23:59:59	mwp-manager.oderland.org	mwp-manager.oderland.org	C=US, ST=TX, L=Houston, O="cPanel, Inc.", CN="cPanel, Inc. Certification Authority"