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

Results for*.mydesktop.oncloud.io

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2016-10-11T17:39:41.485	2016-07-15T11:58:42	2018-07-15T11:58:42	*.oncloud.io	*.mydesktop.oncloud.io	C=IL, O=StartCom Ltd., OU=StartCom Certification Authority, CN=StartCom Class 2 IV Server CA
2016-10-11T17:39:41.485	2016-07-15T11:58:42	2018-07-15T11:58:42	*.oncloud.io	*.mydesktop.oncloud.io	C=IL, O=StartCom Ltd., OU=StartCom Certification Authority, CN=StartCom Class 2 IV Server CA
2016-07-15T12:29:27.975	2016-07-15T11:58:42	2018-07-15T11:58:42	*.oncloud.io	*.mydesktop.oncloud.io	C=IL, O=StartCom Ltd., OU=StartCom Certification Authority, CN=StartCom Class 2 IV Server CA
2016-07-15T12:29:27.975	2016-07-15T11:58:42	2018-07-15T11:58:42	*.oncloud.io	*.mydesktop.oncloud.io	C=IL, O=StartCom Ltd., OU=StartCom Certification Authority, CN=StartCom Class 2 IV Server CA