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

Results forco.zilchcode.com

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2022-12-13T03:55:35.781	2022-12-13T02:55:35	2023-03-13T02:55:34	contingent.vc	arbitrageopportunities.co.zilchcode.com	C=US, O=Let's Encrypt, CN=R3
2022-12-13T03:55:35.334	2022-12-13T02:55:35	2023-03-13T02:55:34	contingent.vc	arbitrageopportunities.co.zilchcode.com	C=US, O=Let's Encrypt, CN=R3
2021-10-22T22:34:16.219	2021-10-22T21:34:15	2022-01-20T21:34:14	ifreezer.co.zilchcode.com	ifreezer.co.zilchcode.com	C=US, O=Let's Encrypt, CN=R3
2021-10-22T22:34:15.591	2021-10-22T21:34:15	2022-01-20T21:34:14	ifreezer.co.zilchcode.com	ifreezer.co.zilchcode.com	C=US, O=Let's Encrypt, CN=R3