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

Results forwww.ic.intersofex.ro

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2017-11-19T03:55:39.594	2017-11-19T02:55:39	2018-02-17T02:55:39	celiberindustries.eu	www.ic.intersofex.ro	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2017-09-19T02:03:03.941	2017-09-19T01:03:00	2017-12-18T01:03:00	test.intersofex.ro	www.ic.intersofex.ro	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2017-04-25T02:53:23.629	2017-04-21T00:00:00	2017-07-20T23:59:59	ic.intersofex.ro	www.ic.intersofex.ro	C=US, ST=TX, L=Houston, O="cPanel, Inc.", CN="cPanel, Inc. Certification Authority"
2017-02-12T21:40:27.918	2017-02-04T00:00:00	2017-05-05T23:59:59	ic.intersofex.ro	www.ic.intersofex.ro	C=US, ST=TX, L=Houston, O="cPanel, Inc.", CN="cPanel, Inc. Certification Authority"
2016-12-24T19:35:10.482	2016-11-20T00:00:00	2017-02-18T23:59:59	ic.intersofex.ro	www.ic.intersofex.ro	C=US, ST=TX, L=Houston, O="cPanel, Inc.", CN="cPanel, Inc. Certification Authority"