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

Results forcpanel.dev.corpseed.com

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2020-02-27T08:24:41.265	2020-02-27T00:00:00	2020-05-27T23:59:59	dev.corpseed.com	cpanel.dev.corpseed.com	C=US, ST=TX, L=Houston, O="cPanel, Inc.", CN="cPanel, Inc. Certification Authority"
2020-02-27T08:24:20.391	2020-02-27T00:00:00	2020-05-27T23:59:59	dev.corpseed.com	cpanel.dev.corpseed.com	C=US, ST=TX, L=Houston, O="cPanel, Inc.", CN="cPanel, Inc. Certification Authority"
2019-12-09T12:56:44.427	2019-12-09T00:00:00	2020-03-08T23:59:59	dev.corpseed.com	cpanel.dev.corpseed.com	C=US, ST=TX, L=Houston, O="cPanel, Inc.", CN="cPanel, Inc. Certification Authority"
2019-12-09T12:56:24.852	2019-12-09T00:00:00	2020-03-08T23:59:59	dev.corpseed.com	cpanel.dev.corpseed.com	C=US, ST=TX, L=Houston, O="cPanel, Inc.", CN="cPanel, Inc. Certification Authority"