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

Results for*.dual.vc

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2019-12-15T03:52:40.034	2019-12-05T00:00:00	2020-12-05T12:00:00	dual.vc	*.dual.vc	C=US, O=DigiCert Inc, OU=www.digicert.com, CN=Encryption Everywhere DV TLS CA - G1
2019-12-15T03:52:40.034	2019-12-05T00:00:00	2020-12-05T12:00:00	dual.vc	*.dual.vc	C=US, O=DigiCert Inc, OU=www.digicert.com, CN=Encryption Everywhere DV TLS CA - G1
2019-12-05T14:34:41.254	2019-12-05T00:00:00	2020-12-05T12:00:00	dual.vc	*.dual.vc	C=US, O=DigiCert Inc, OU=www.digicert.com, CN=Encryption Everywhere DV TLS CA - G1
2019-12-05T14:34:41.254	2019-12-05T00:00:00	2020-12-05T12:00:00	dual.vc	*.dual.vc	C=US, O=DigiCert Inc, OU=www.digicert.com, CN=Encryption Everywhere DV TLS CA - G1