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

Results for*.kiil.com

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2015-04-15T19:58:17.086	2015-04-09T02:12:10	2017-04-09T00:22:03	service.kiil.com	*.kiil.com	C=IL, O=StartCom Ltd., OU=Secure Digital Certificate Signing, CN=StartCom Class 2 Primary Intermediate Server CA
2015-04-15T19:58:17.086	2015-04-09T02:12:10	2017-04-09T00:22:03	service.kiil.com	*.kiil.com	C=IL, O=StartCom Ltd., OU=Secure Digital Certificate Signing, CN=StartCom Class 2 Primary Intermediate Server CA
2013-04-25T12:10:08.192	2013-04-09T13:40:35	2015-04-09T19:15:00	service.kiil.com	*.kiil.com	C=IL, O=StartCom Ltd., OU=Secure Digital Certificate Signing, CN=StartCom Class 2 Primary Intermediate Server CA
2013-04-25T12:10:08.192	2013-04-09T13:40:35	2015-04-09T19:15:00	service.kiil.com	*.kiil.com	C=IL, O=StartCom Ltd., OU=Secure Digital Certificate Signing, CN=StartCom Class 2 Primary Intermediate Server CA