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

Results for*.gopher.one

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2021-01-09T14:02:28.315	2020-12-18T00:00:00	2021-12-18T23:59:59	gopher.one	*.gopher.one	C=US, O=DigiCert Inc, OU=www.digicert.com, CN=Encryption Everywhere DV TLS CA - G1
2021-01-09T14:02:28.315	2020-12-18T00:00:00	2021-12-18T23:59:59	gopher.one	*.gopher.one	C=US, O=DigiCert Inc, OU=www.digicert.com, CN=Encryption Everywhere DV TLS CA - G1
2020-12-18T06:01:09.392	2020-12-18T00:00:00	2021-12-18T23:59:59	gopher.one	*.gopher.one	C=US, O=DigiCert Inc, OU=www.digicert.com, CN=Encryption Everywhere DV TLS CA - G1
2020-12-18T06:01:09.392	2020-12-18T00:00:00	2021-12-18T23:59:59	gopher.one	*.gopher.one	C=US, O=DigiCert Inc, OU=www.digicert.com, CN=Encryption Everywhere DV TLS CA - G1