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

Results forcpanel.server.tnplayer.com

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2023-04-16T10:45:43.281	2023-04-16T00:00:00	2023-07-15T23:59:59	server.tnplayer.com	cpanel.server.tnplayer.com	C=US, ST=TX, L=Houston, O="cPanel, Inc.", CN="cPanel, Inc. Certification Authority"
2023-04-16T10:45:41.879	2023-04-16T00:00:00	2023-07-15T23:59:59	server.tnplayer.com	cpanel.server.tnplayer.com	C=US, ST=TX, L=Houston, O="cPanel, Inc.", CN="cPanel, Inc. Certification Authority"
2023-03-31T03:51:33.27	2023-03-31T00:00:00	2023-06-29T23:59:59	server.tnplayer.com	cpanel.server.tnplayer.com	C=US, ST=TX, L=Houston, O="cPanel, Inc.", CN="cPanel, Inc. Certification Authority"
2023-03-31T03:51:32.302	2023-03-31T00:00:00	2023-06-29T23:59:59	server.tnplayer.com	cpanel.server.tnplayer.com	C=US, ST=TX, L=Houston, O="cPanel, Inc.", CN="cPanel, Inc. Certification Authority"