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

Results for*.bottleshare.de

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2021-03-02T12:45:29.979	2021-01-09T00:00:00	2022-01-09T23:59:59	bottleshare.de	*.bottleshare.de	C=US, O=DigiCert Inc, OU=www.digicert.com, CN=Encryption Everywhere DV TLS CA - G1
2021-03-02T12:45:29.979	2021-01-09T00:00:00	2022-01-09T23:59:59	bottleshare.de	*.bottleshare.de	C=US, O=DigiCert Inc, OU=www.digicert.com, CN=Encryption Everywhere DV TLS CA - G1
2021-01-09T13:28:09.464	2021-01-09T00:00:00	2022-01-09T23:59:59	bottleshare.de	*.bottleshare.de	C=US, O=DigiCert Inc, OU=www.digicert.com, CN=Encryption Everywhere DV TLS CA - G1
2021-01-09T13:28:09.464	2021-01-09T00:00:00	2022-01-09T23:59:59	bottleshare.de	*.bottleshare.de	C=US, O=DigiCert Inc, OU=www.digicert.com, CN=Encryption Everywhere DV TLS CA - G1