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

Results forwebdisk.tech.techlandbd.com

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2019-06-20T01:47:50.777	2019-06-20T00:00:00	2019-09-18T23:59:59	tech.techlandbd.com	webdisk.tech.techlandbd.com	C=US, ST=TX, L=Houston, O="cPanel, Inc.", CN="cPanel, Inc. Certification Authority"
2019-06-20T01:47:31.748	2019-06-20T00:00:00	2019-09-18T23:59:59	tech.techlandbd.com	webdisk.tech.techlandbd.com	C=US, ST=TX, L=Houston, O="cPanel, Inc.", CN="cPanel, Inc. Certification Authority"
2019-04-05T01:44:54.835	2019-04-05T00:00:00	2019-07-04T23:59:59	tech.techlandbd.com	webdisk.tech.techlandbd.com	C=US, ST=TX, L=Houston, O="cPanel, Inc.", CN="cPanel, Inc. Certification Authority"
2019-04-05T01:44:40.546	2019-04-05T00:00:00	2019-07-04T23:59:59	tech.techlandbd.com	webdisk.tech.techlandbd.com	C=US, ST=TX, L=Houston, O="cPanel, Inc.", CN="cPanel, Inc. Certification Authority"