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

Results for*.prelienpro.com

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2019-12-29T18:17:31.963	2019-12-08T00:00:00	2020-12-08T12:00:00	prelienpro.com	*.prelienpro.com	C=US, O=DigiCert Inc, OU=www.digicert.com, CN=Encryption Everywhere DV TLS CA - G1
2019-12-29T18:17:31.963	2019-12-08T00:00:00	2020-12-08T12:00:00	prelienpro.com	*.prelienpro.com	C=US, O=DigiCert Inc, OU=www.digicert.com, CN=Encryption Everywhere DV TLS CA - G1
2019-12-08T09:30:16.109	2019-12-08T00:00:00	2020-12-08T12:00:00	prelienpro.com	*.prelienpro.com	C=US, O=DigiCert Inc, OU=www.digicert.com, CN=Encryption Everywhere DV TLS CA - G1
2019-12-08T09:30:16.109	2019-12-08T00:00:00	2020-12-08T12:00:00	prelienpro.com	*.prelienpro.com	C=US, O=DigiCert Inc, OU=www.digicert.com, CN=Encryption Everywhere DV TLS CA - G1