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

Results for*.piped.org

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2021-01-12T20:15:07.282	2021-01-12T00:00:00	2022-01-12T23:59:59	piped.org	*.piped.org	C=US, O=DigiCert Inc, OU=www.digicert.com, CN=Encryption Everywhere DV TLS CA - G1
2021-01-12T20:15:07.282	2021-01-12T00:00:00	2022-01-12T23:59:59	piped.org	*.piped.org	C=US, O=DigiCert Inc, OU=www.digicert.com, CN=Encryption Everywhere DV TLS CA - G1
2021-01-12T20:14:52.314	2021-01-12T00:00:00	2022-01-12T23:59:59	piped.org	*.piped.org	C=US, O=DigiCert Inc, OU=www.digicert.com, CN=Encryption Everywhere DV TLS CA - G1
2021-01-12T20:14:52.314	2021-01-12T00:00:00	2022-01-12T23:59:59	piped.org	*.piped.org	C=US, O=DigiCert Inc, OU=www.digicert.com, CN=Encryption Everywhere DV TLS CA - G1