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

Results forprep3.com.icpms.com

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2022-05-25T23:48:52.741	2022-05-25T00:00:00	2022-08-23T23:59:59	prep3.com.icpms.com	prep3.com.icpms.com	C=US, ST=TX, L=Houston, O="cPanel, Inc.", CN="cPanel, Inc. Certification Authority"
2022-05-25T23:48:52.094	2022-05-25T00:00:00	2022-08-23T23:59:59	prep3.com.icpms.com	prep3.com.icpms.com	C=US, ST=TX, L=Houston, O="cPanel, Inc.", CN="cPanel, Inc. Certification Authority"
2022-05-25T17:31:47.895	2022-05-25T00:00:00	2022-08-23T23:59:59	prep3.com.icpms.com	prep3.com.icpms.com	C=US, ST=TX, L=Houston, O="cPanel, Inc.", CN="cPanel, Inc. Certification Authority"
2022-05-25T17:31:47.323	2022-05-25T00:00:00	2022-08-23T23:59:59	prep3.com.icpms.com	prep3.com.icpms.com	C=US, ST=TX, L=Houston, O="cPanel, Inc.", CN="cPanel, Inc. Certification Authority"