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

Results for*.prove.vc

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2020-01-11T06:37:13.178	2020-01-08T00:00:00	2021-01-08T12:00:00	prove.vc	*.prove.vc	C=US, O=DigiCert Inc, OU=www.digicert.com, CN=Encryption Everywhere DV TLS CA - G1
2020-01-11T06:37:13.178	2020-01-08T00:00:00	2021-01-08T12:00:00	prove.vc	*.prove.vc	C=US, O=DigiCert Inc, OU=www.digicert.com, CN=Encryption Everywhere DV TLS CA - G1
2020-01-08T16:27:36.436	2020-01-08T00:00:00	2021-01-08T12:00:00	prove.vc	*.prove.vc	C=US, O=DigiCert Inc, OU=www.digicert.com, CN=Encryption Everywhere DV TLS CA - G1
2020-01-08T16:27:36.436	2020-01-08T00:00:00	2021-01-08T12:00:00	prove.vc	*.prove.vc	C=US, O=DigiCert Inc, OU=www.digicert.com, CN=Encryption Everywhere DV TLS CA - G1