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

Results forwebdisk.test.minmaxgroup.com

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2024-05-19T00:28:04.417	2024-05-18T23:28:04	2024-08-16T23:28:03	webmail.test.minmaxgroup.com	webdisk.test.minmaxgroup.com	C=US, O=Let's Encrypt, CN=R3
2024-05-19T00:28:04.323	2024-05-18T23:28:04	2024-08-16T23:28:03	webmail.test.minmaxgroup.com	webdisk.test.minmaxgroup.com	C=US, O=Let's Encrypt, CN=R3
2024-05-18T12:04:38.057	2024-05-18T11:04:37	2024-08-16T11:04:36	cpcontacts.test.minmaxgroup.com	webdisk.test.minmaxgroup.com	C=US, O=Let's Encrypt, CN=R3
2024-05-18T12:04:37.979	2024-05-18T11:04:37	2024-08-16T11:04:36	cpcontacts.test.minmaxgroup.com	webdisk.test.minmaxgroup.com	C=US, O=Let's Encrypt, CN=R3