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

Results forwww.ancoek.com

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2018-06-01T13:23:35.968	2018-06-01T00:00:00	2018-08-30T23:59:59	ancoek.com	www.ancoek.com	C=US, ST=TX, L=Houston, O="cPanel, Inc.", CN="cPanel, Inc. Certification Authority"
2018-06-01T13:23:22.676	2018-06-01T00:00:00	2018-08-30T23:59:59	ancoek.com	www.ancoek.com	C=US, ST=TX, L=Houston, O="cPanel, Inc.", CN="cPanel, Inc. Certification Authority"
2018-04-26T20:15:33.834	2018-04-26T19:15:33	2018-07-25T19:15:33	ancoek.com	www.ancoek.com	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2018-04-26T20:15:33.568	2018-04-26T19:15:33	2018-07-25T19:15:33	ancoek.com	www.ancoek.com	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3