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

Results forcom.nominate.vc

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2022-11-27T10:23:46.089	2022-11-27T09:23:45	2023-02-25T09:23:44	ostomyassistance.com.nominate.vc	ostomyassistance.com.nominate.vc	C=US, O=Let's Encrypt, CN=R3
2022-11-27T10:23:45.483	2022-11-27T09:23:45	2023-02-25T09:23:44	ostomyassistance.com.nominate.vc	ostomyassistance.com.nominate.vc	C=US, O=Let's Encrypt, CN=R3
2022-09-06T07:53:45.324	2022-09-06T06:53:44	2022-12-05T06:53:43	aboutindy.com.nominate.vc	aboutindy.com.nominate.vc	C=US, O=Let's Encrypt, CN=R3
2022-09-06T07:53:44.92	2022-09-06T06:53:44	2022-12-05T06:53:43	aboutindy.com.nominate.vc	aboutindy.com.nominate.vc	C=US, O=Let's Encrypt, CN=R3