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

Results for*.retensity.com

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2020-03-08T19:05:11.896	2020-03-06T00:00:00	2021-03-07T12:00:00	retensity.com	*.retensity.com	C=US, O=DigiCert Inc, OU=www.digicert.com, CN=Encryption Everywhere DV TLS CA - G1
2020-03-08T19:05:11.896	2020-03-06T00:00:00	2021-03-07T12:00:00	retensity.com	*.retensity.com	C=US, O=DigiCert Inc, OU=www.digicert.com, CN=Encryption Everywhere DV TLS CA - G1
2020-03-06T10:20:27.289	2020-03-06T00:00:00	2021-03-07T12:00:00	retensity.com	*.retensity.com	C=US, O=DigiCert Inc, OU=www.digicert.com, CN=Encryption Everywhere DV TLS CA - G1
2020-03-06T10:20:27.289	2020-03-06T00:00:00	2021-03-07T12:00:00	retensity.com	*.retensity.com	C=US, O=DigiCert Inc, OU=www.digicert.com, CN=Encryption Everywhere DV TLS CA - G1