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

Results for*.idntify.me

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2021-03-16T05:06:42.218	2021-03-11T00:00:00	2022-03-11T23:59:59	idntify.me	*.idntify.me	C=US, O=DigiCert Inc, OU=www.digicert.com, CN=Encryption Everywhere DV TLS CA - G1
2021-03-16T05:06:42.218	2021-03-11T00:00:00	2022-03-11T23:59:59	idntify.me	*.idntify.me	C=US, O=DigiCert Inc, OU=www.digicert.com, CN=Encryption Everywhere DV TLS CA - G1
2021-03-11T12:35:08.559	2021-03-11T00:00:00	2022-03-11T23:59:59	idntify.me	*.idntify.me	C=US, O=DigiCert Inc, OU=www.digicert.com, CN=Encryption Everywhere DV TLS CA - G1
2021-03-11T12:35:08.559	2021-03-11T00:00:00	2022-03-11T23:59:59	idntify.me	*.idntify.me	C=US, O=DigiCert Inc, OU=www.digicert.com, CN=Encryption Everywhere DV TLS CA - G1