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

Results forwebdisk.encodeapi.com

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2018-07-30T06:21:47.075	2018-07-30T00:00:00	2018-10-28T23:59:59	encodeapi.com	webdisk.encodeapi.com	C=US, ST=TX, L=Houston, O="cPanel, Inc.", CN="cPanel, Inc. Certification Authority"
2018-07-30T06:21:26.229	2018-07-30T00:00:00	2018-10-28T23:59:59	encodeapi.com	webdisk.encodeapi.com	C=US, ST=TX, L=Houston, O="cPanel, Inc.", CN="cPanel, Inc. Certification Authority"
2018-05-15T15:53:53.925	2018-05-15T00:00:00	2018-08-13T23:59:59	encodeapi.com	webdisk.encodeapi.com	C=US, ST=TX, L=Houston, O="cPanel, Inc.", CN="cPanel, Inc. Certification Authority"
2018-05-15T15:53:33.386	2018-05-15T00:00:00	2018-08-13T23:59:59	encodeapi.com	webdisk.encodeapi.com	C=US, ST=TX, L=Houston, O="cPanel, Inc.", CN="cPanel, Inc. Certification Authority"
2018-05-01T19:42:31.522	2018-02-28T00:00:00	2018-05-29T23:59:59	encodeapi.com	webdisk.encodeapi.com	C=US, ST=TX, L=Houston, O="cPanel, Inc.", CN="cPanel, Inc. Certification Authority"
2017-11-04T19:39:01.706	2017-09-28T00:00:00	2017-12-27T23:59:59	encodeapi.com	webdisk.encodeapi.com	C=US, ST=TX, L=Houston, O="cPanel, Inc.", CN="cPanel, Inc. Certification Authority"