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

Results forwww.help.darkroomsoftware.com

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2020-05-21T14:54:58.078	2020-05-21T00:00:00	2020-08-19T23:59:59	help.darkroomsoftware.com	www.help.darkroomsoftware.com	C=US, ST=TX, L=Houston, O="cPanel, Inc.", CN="cPanel, Inc. Certification Authority"
2020-05-21T14:54:57.76	2020-05-21T00:00:00	2020-08-19T23:59:59	help.darkroomsoftware.com	www.help.darkroomsoftware.com	C=US, ST=TX, L=Houston, O="cPanel, Inc.", CN="cPanel, Inc. Certification Authority"
2020-05-21T14:50:44.262	2020-05-21T00:00:00	2020-08-19T23:59:59	help.darkroomsoftware.com	www.help.darkroomsoftware.com	C=US, ST=TX, L=Houston, O="cPanel, Inc.", CN="cPanel, Inc. Certification Authority"
2020-05-21T14:50:43.813	2020-05-21T00:00:00	2020-08-19T23:59:59	help.darkroomsoftware.com	www.help.darkroomsoftware.com	C=US, ST=TX, L=Houston, O="cPanel, Inc.", CN="cPanel, Inc. Certification Authority"