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

Results forwebdisk.moodqualifies.com

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2020-02-23T13:39:31.93	2020-02-23T12:39:31	2020-05-23T12:39:31	moodqualifies.com	webdisk.moodqualifies.com	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2020-02-23T13:39:31.733	2020-02-23T12:39:31	2020-05-23T12:39:31	moodqualifies.com	webdisk.moodqualifies.com	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2019-12-23T02:04:20.827	2019-12-23T01:04:20	2020-03-22T01:04:20	moodqualifies.com	webdisk.moodqualifies.com	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2019-12-23T02:04:20.714	2019-12-23T01:04:20	2020-03-22T01:04:20	moodqualifies.com	webdisk.moodqualifies.com	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2019-10-20T19:19:12.092	2019-10-20T18:19:11	2020-01-18T18:19:11	dojosas.com	webdisk.moodqualifies.com	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2019-10-20T19:19:11.955	2019-10-20T18:19:11	2020-01-18T18:19:11	dojosas.com	webdisk.moodqualifies.com	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3