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

Results forcool.faqtruth.org

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2022-12-13T05:24:34.932	2022-12-13T04:24:34	2023-03-13T04:24:33	prowl.vc	seniors.cool.faqtruth.org	C=US, O=Let's Encrypt, CN=R3
2022-12-13T05:24:34.681	2022-12-13T04:24:34	2023-03-13T04:24:33	prowl.vc	seniors.cool.faqtruth.org	C=US, O=Let's Encrypt, CN=R3
2022-05-02T21:30:22.758	2022-05-02T20:30:22	2022-07-31T20:30:21	computers.cool.faqtruth.org	computers.cool.faqtruth.org	C=US, O=Let's Encrypt, CN=R3
2022-05-02T21:30:22.635	2022-05-02T20:30:22	2022-07-31T20:30:21	computers.cool.faqtruth.org	computers.cool.faqtruth.org	C=US, O=Let's Encrypt, CN=R3