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

Results fornet.optionvoice.com

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2025-03-13T10:23:01.007	2025-03-13T09:24:30	2025-06-11T09:24:29	net.optionvoice.com	net.optionvoice.com	C=US, O=Let's Encrypt, CN=R10
2025-03-13T10:23:00.761	2025-03-13T09:24:30	2025-06-11T09:24:29	net.optionvoice.com	net.optionvoice.com	C=US, O=Let's Encrypt, CN=R10
2025-03-03T23:57:22.797	2025-03-03T22:58:52	2025-06-01T22:58:51	iorganic.net.optionvoice.com	iorganic.net.optionvoice.com	C=US, O=Let's Encrypt, CN=R10
2025-03-03T23:57:22.42	2025-03-03T22:58:52	2025-06-01T22:58:51	iorganic.net.optionvoice.com	iorganic.net.optionvoice.com	C=US, O=Let's Encrypt, CN=R10
2023-01-16T07:02:20.624	2023-01-16T06:02:19	2023-04-16T06:02:18	savethehomeless.org	iorganic.net.optionvoice.com	C=US, O=Let's Encrypt, CN=R3
2023-01-16T07:02:20.222	2023-01-16T06:02:19	2023-04-16T06:02:18	savethehomeless.org	iorganic.net.optionvoice.com	C=US, O=Let's Encrypt, CN=R3