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

Results for*.i40mc.de

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2019-06-01T00:13:02.673	2019-05-20T07:22:27	2021-05-20T08:42:36	*.i40mc.de	*.i40mc.de	C=BE, O=GlobalSign nv-sa, CN=AlphaSSL CA - SHA256 - G2
2019-06-01T00:13:02.673	2019-05-20T07:22:27	2021-05-20T08:42:36	*.i40mc.de	*.i40mc.de	C=BE, O=GlobalSign nv-sa, CN=AlphaSSL CA - SHA256 - G2
2019-05-20T07:22:28.543	2019-05-20T07:22:27	2021-05-20T08:42:36	*.i40mc.de	*.i40mc.de	C=BE, O=GlobalSign nv-sa, CN=AlphaSSL CA - SHA256 - G2
2019-05-20T07:22:28.543	2019-05-20T07:22:27	2021-05-20T08:42:36	*.i40mc.de	*.i40mc.de	C=BE, O=GlobalSign nv-sa, CN=AlphaSSL CA - SHA256 - G2
2017-11-17T23:00:14.456	2017-05-19T08:42:36	2019-05-20T08:42:36	*.i40mc.de	*.i40mc.de	C=BE, O=GlobalSign nv-sa, CN=AlphaSSL CA - SHA256 - G2
2017-11-17T23:00:14.456	2017-05-19T08:42:36	2019-05-20T08:42:36	*.i40mc.de	*.i40mc.de	C=BE, O=GlobalSign nv-sa, CN=AlphaSSL CA - SHA256 - G2
2017-05-19T08:42:38.341	2017-05-19T08:42:36	2019-05-20T08:42:36	*.i40mc.de	*.i40mc.de	C=BE, O=GlobalSign nv-sa, CN=AlphaSSL CA - SHA256 - G2
2017-05-19T08:42:38.341	2017-05-19T08:42:36	2019-05-20T08:42:36	*.i40mc.de	*.i40mc.de	C=BE, O=GlobalSign nv-sa, CN=AlphaSSL CA - SHA256 - G2