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

Results forwebdisk.cactuscode.sa

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2023-08-11T05:25:03.65	2023-08-11T04:25:03	2023-11-09T04:25:02	webdisk.cactuscode.sa	webdisk.cactuscode.sa	C=US, O=Let's Encrypt, CN=R3
2023-08-11T05:25:03.447	2023-08-11T04:25:03	2023-11-09T04:25:02	webdisk.cactuscode.sa	webdisk.cactuscode.sa	C=US, O=Let's Encrypt, CN=R3
2023-06-11T05:25:09.227	2023-06-11T04:25:08	2023-09-09T04:25:07	cpcalendars.cactuscode.sa	webdisk.cactuscode.sa	C=US, O=Let's Encrypt, CN=R3
2023-06-11T05:25:08.961	2023-06-11T04:25:08	2023-09-09T04:25:07	cpcalendars.cactuscode.sa	webdisk.cactuscode.sa	C=US, O=Let's Encrypt, CN=R3
2023-04-11T05:16:30.874	2023-04-11T04:16:30	2023-07-10T04:16:29	cpanel.cactuscode.sa	webdisk.cactuscode.sa	C=US, O=Let's Encrypt, CN=R3
2023-04-11T05:16:30.675	2023-04-11T04:16:30	2023-07-10T04:16:29	cpanel.cactuscode.sa	webdisk.cactuscode.sa	C=US, O=Let's Encrypt, CN=R3
2023-02-08T23:35:14.386	2023-02-08T00:00:00	2023-05-09T23:59:59	www.cactuscode.sa	webdisk.cactuscode.sa	C=US, ST=TX, L=Houston, O="cPanel, Inc.", CN="cPanel, Inc. Certification Authority"
2023-02-08T23:35:13.213	2023-02-08T00:00:00	2023-05-09T23:59:59	www.cactuscode.sa	webdisk.cactuscode.sa	C=US, ST=TX, L=Houston, O="cPanel, Inc.", CN="cPanel, Inc. Certification Authority"