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

Results forwebdisk.infprx.com

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2022-06-04T23:59:35.784	2022-06-04T00:00:00	2022-09-02T23:59:59	infprx.com	webdisk.infprx.com	C=US, ST=TX, L=Houston, O="cPanel, Inc.", CN="cPanel, Inc. Certification Authority"
2022-06-04T23:59:34.776	2022-06-04T00:00:00	2022-09-02T23:59:59	infprx.com	webdisk.infprx.com	C=US, ST=TX, L=Houston, O="cPanel, Inc.", CN="cPanel, Inc. Certification Authority"
2022-03-19T21:17:43.157	2022-03-19T00:00:00	2022-06-17T23:59:59	infprx.com	webdisk.infprx.com	C=US, ST=TX, L=Houston, O="cPanel, Inc.", CN="cPanel, Inc. Certification Authority"
2022-03-19T21:17:41.958	2022-03-19T00:00:00	2022-06-17T23:59:59	infprx.com	webdisk.infprx.com	C=US, ST=TX, L=Houston, O="cPanel, Inc.", CN="cPanel, Inc. Certification Authority"