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

Results for*.cloudbro.net

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2013-10-28T13:21:22.047	2013-10-26T06:21:37	2015-10-26T23:49:14	*.summoner.co	*.cloudbro.net	C=IL, O=StartCom Ltd., OU=Secure Digital Certificate Signing, CN=StartCom Class 2 Primary Intermediate Server CA
2013-10-28T13:21:22.047	2013-10-26T06:21:37	2015-10-26T23:49:14	*.summoner.co	*.cloudbro.net	C=IL, O=StartCom Ltd., OU=Secure Digital Certificate Signing, CN=StartCom Class 2 Primary Intermediate Server CA
2013-10-17T12:28:26.356	2013-10-14T20:07:27	2015-10-15T06:23:51	*.cloudbro.net	*.cloudbro.net	C=IL, O=StartCom Ltd., OU=Secure Digital Certificate Signing, CN=StartCom Class 2 Primary Intermediate Server CA
2013-10-17T12:28:26.356	2013-10-14T20:07:27	2015-10-15T06:23:51	*.cloudbro.net	*.cloudbro.net	C=IL, O=StartCom Ltd., OU=Secure Digital Certificate Signing, CN=StartCom Class 2 Primary Intermediate Server CA