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

Results fororg.consistent.vc

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2022-10-17T20:04:34.893	2022-10-17T19:04:34	2023-01-15T19:04:33	toptier.vc	poisonsumaccure.org.consistent.vc	C=US, O=Let's Encrypt, CN=R3
2022-10-17T20:04:34.673	2022-10-17T19:04:34	2023-01-15T19:04:33	toptier.vc	poisonsumaccure.org.consistent.vc	C=US, O=Let's Encrypt, CN=R3
2022-08-15T03:01:22.279	2022-08-15T02:01:22	2022-11-13T02:01:21	poisonoakcure.org.consistent.vc	poisonoakcure.org.consistent.vc	C=US, O=Let's Encrypt, CN=R3
2022-08-15T03:01:22.155	2022-08-15T02:01:22	2022-11-13T02:01:21	poisonoakcure.org.consistent.vc	poisonoakcure.org.consistent.vc	C=US, O=Let's Encrypt, CN=R3