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

Results for*.ip70.com

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2020-06-07T17:07:31.071	2020-06-04T00:00:00	2021-06-05T12:00:00	ip70.com	*.ip70.com	C=US, O=DigiCert Inc, OU=www.digicert.com, CN=Encryption Everywhere DV TLS CA - G1
2020-06-07T17:07:31.071	2020-06-04T00:00:00	2021-06-05T12:00:00	ip70.com	*.ip70.com	C=US, O=DigiCert Inc, OU=www.digicert.com, CN=Encryption Everywhere DV TLS CA - G1
2020-06-04T23:26:06.174	2020-06-04T00:00:00	2021-06-05T12:00:00	ip70.com	*.ip70.com	C=US, O=DigiCert Inc, OU=www.digicert.com, CN=Encryption Everywhere DV TLS CA - G1
2020-06-04T23:26:06.174	2020-06-04T00:00:00	2021-06-05T12:00:00	ip70.com	*.ip70.com	C=US, O=DigiCert Inc, OU=www.digicert.com, CN=Encryption Everywhere DV TLS CA - G1