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

Results forubuntu15.com

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2016-08-31T05:37:09.301	2015-04-06T04:15:48	2018-04-06T05:15:48	2012r2.com	ubuntu15.com www.ubuntu15.com	C=CN, O=WoSign CA Limited, CN=CA 沃通免费SSL证书 G2
2016-08-31T05:35:23.566	2015-04-05T03:43:45	2018-04-05T04:43:45	2012r2.com	ubuntu15.com www.ubuntu15.com	C=CN, O=WoSign CA Limited, CN=WoSign CA Free SSL Certificate G2
2016-08-31T05:34:02.694	2015-04-04T13:49:17	2018-04-04T14:49:17	2012r2.com	ubuntu15.com	C=CN, O=WoSign CA Limited, CN=WoSign CA Free SSL Certificate G2
2016-08-31T05:10:49.287	2015-03-26T14:00:33	2018-03-26T15:00:33	ubuntu15.com	ubuntu15.com www.ubuntu15.com	C=CN, O=WoSign CA Limited, CN=WoSign CA Free SSL Certificate G2
2016-08-31T05:10:11.978	2015-03-26T13:27:59	2018-03-26T14:27:59	ubuntu15.com	ubuntu15.com www.ubuntu15.com	C=CN, O=WoSign CA Limited, CN=WoSign CA Free SSL Certificate G2
2015-04-08T11:41:44.923	2015-04-06T05:46:23	2018-04-06T06:46:23	2012r2.com	ubuntu15.com www.ubuntu15.com	C=CN, O=WoSign CA Limited, CN=WoSign CA Free SSL Certificate G2
2015-03-29T11:50:32.947	2015-03-27T00:00:00	2015-12-29T23:59:59	sni90412.cloudflaressl.com	*.ubuntu15.com ubuntu15.com	C=GB, ST=Greater Manchester, L=Salford, O=COMODO CA Limited, CN=COMODO ECC Domain Validation Secure Server CA 2
2015-03-28T14:24:39.126	2015-03-26T00:00:00	2015-12-29T23:59:59	sni90412.cloudflaressl.com	*.ubuntu15.com ubuntu15.com	C=GB, ST=Greater Manchester, L=Salford, O=COMODO CA Limited, CN=COMODO ECC Domain Validation Secure Server CA 2