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

Results forcom.folloze.org

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2020-12-28T02:24:54.29	2020-12-28T01:24:54	2021-03-28T01:24:54	healthyhomenewjersey.com.folloze.org	healthyhomenewjersey.com.folloze.org	C=US, O=Let's Encrypt, CN=R3
2020-12-28T02:24:54.105	2020-12-28T01:24:54	2021-03-28T01:24:54	healthyhomenewjersey.com.folloze.org	healthyhomenewjersey.com.folloze.org	C=US, O=Let's Encrypt, CN=R3
2020-12-27T06:56:37.464	2020-12-27T05:56:37	2021-03-27T05:56:37	learn.faiveer.com.folloze.org	learn.faiveer.com.folloze.org	C=US, O=Let's Encrypt, CN=R3
2020-12-27T06:56:37.345	2020-12-27T05:56:37	2021-03-27T05:56:37	learn.faiveer.com.folloze.org	learn.faiveer.com.folloze.org	C=US, O=Let's Encrypt, CN=R3
2020-06-23T08:32:07.671	2020-06-23T07:32:07	2020-09-21T07:32:07	srilasridharamaharaja.org	advancedmeters.com.folloze.org	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2020-06-23T08:32:07.44	2020-06-23T07:32:07	2020-09-21T07:32:07	srilasridharamaharaja.org	advancedmeters.com.folloze.org	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3