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

Results for*.drowly.com

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2020-06-14T14:48:13.661	2020-06-12T00:00:00	2021-06-13T12:00:00	drowly.com	*.drowly.com	C=US, O=DigiCert Inc, OU=www.digicert.com, CN=Encryption Everywhere DV TLS CA - G1
2020-06-14T14:48:13.661	2020-06-12T00:00:00	2021-06-13T12:00:00	drowly.com	*.drowly.com	C=US, O=DigiCert Inc, OU=www.digicert.com, CN=Encryption Everywhere DV TLS CA - G1
2020-06-12T05:53:46.823	2020-06-12T00:00:00	2021-06-13T12:00:00	drowly.com	*.drowly.com	C=US, O=DigiCert Inc, OU=www.digicert.com, CN=Encryption Everywhere DV TLS CA - G1
2020-06-12T05:53:46.823	2020-06-12T00:00:00	2021-06-13T12:00:00	drowly.com	*.drowly.com	C=US, O=DigiCert Inc, OU=www.digicert.com, CN=Encryption Everywhere DV TLS CA - G1