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

Results forcms.pausex.com

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2022-07-07T05:49:34.757	2022-07-07T04:49:34	2022-10-05T04:49:33	cms.pausex.com	cms.pausex.com	C=US, O=Let's Encrypt, CN=R3
2022-07-07T05:49:34.551	2022-07-07T04:49:34	2022-10-05T04:49:33	cms.pausex.com	cms.pausex.com	C=US, O=Let's Encrypt, CN=R3
2022-04-02T02:54:12.966	2022-04-02T01:54:12	2022-07-01T01:54:11	cms.pausex.com	cms.pausex.com	C=US, O=Let's Encrypt, CN=R3
2022-04-02T02:54:12.857	2022-04-02T01:54:12	2022-07-01T01:54:11	cms.pausex.com	cms.pausex.com	C=US, O=Let's Encrypt, CN=R3
2021-12-29T12:48:21.532	2021-12-29T11:48:21	2022-03-29T11:48:20	cms.pausex.com	cms.pausex.com	C=US, O=Let's Encrypt, CN=R3
2021-12-29T12:48:21.317	2021-12-29T11:48:21	2022-03-29T11:48:20	cms.pausex.com	cms.pausex.com	C=US, O=Let's Encrypt, CN=R3