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

Results forcpanel.codegenpro.com

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2019-08-17T01:31:07.284	2019-08-17T00:31:06	2019-11-15T00:31:06	codegenpro.com	cpanel.codegenpro.com	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2019-08-17T01:31:06.874	2019-08-17T00:31:06	2019-11-15T00:31:06	codegenpro.com	cpanel.codegenpro.com	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2019-06-17T01:31:18.989	2019-06-17T00:31:18	2019-09-15T00:31:18	codegenpro.com	cpanel.codegenpro.com	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2019-06-17T01:31:18.298	2019-06-17T00:31:18	2019-09-15T00:31:18	codegenpro.com	cpanel.codegenpro.com	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2019-04-17T01:30:24.228	2019-04-17T00:30:22	2019-07-16T00:30:22	instantcodegenerator.com	cpanel.codegenpro.com	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2019-04-17T01:30:22.948	2019-04-17T00:30:22	2019-07-16T00:30:22	instantcodegenerator.com	cpanel.codegenpro.com	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3