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

Results for*.emucast.com

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2019-11-21T03:38:29.697	2019-11-21T03:38:27	2020-11-21T03:38:27	*.emucast.com	*.emucast.com	C=BE, O=GlobalSign nv-sa, CN=AlphaSSL CA - SHA256 - G2
2019-11-21T03:38:29.697	2019-11-21T03:38:27	2020-11-21T03:38:27	*.emucast.com	*.emucast.com	C=BE, O=GlobalSign nv-sa, CN=AlphaSSL CA - SHA256 - G2
2019-08-22T13:18:43.458	2019-08-20T00:00:00	2020-08-19T12:00:00	sni.cloudflaressl.com	*.emucast.com	C=US, ST=CA, L=San Francisco, O="CloudFlare, Inc.", CN=CloudFlare Inc ECC CA-2
2019-08-22T13:18:43.458	2019-08-20T00:00:00	2020-08-19T12:00:00	sni.cloudflaressl.com	*.emucast.com	C=US, ST=CA, L=San Francisco, O="CloudFlare, Inc.", CN=CloudFlare Inc ECC CA-2
2019-08-20T10:57:57.891	2019-08-20T00:00:00	2020-08-19T12:00:00	sni.cloudflaressl.com	*.emucast.com	C=US, ST=CA, L=San Francisco, O="CloudFlare, Inc.", CN=CloudFlare Inc ECC CA-2
2019-08-20T10:57:57.891	2019-08-20T00:00:00	2020-08-19T12:00:00	sni.cloudflaressl.com	*.emucast.com	C=US, ST=CA, L=San Francisco, O="CloudFlare, Inc.", CN=CloudFlare Inc ECC CA-2