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

Results for*.wiegox.com

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2020-06-24T00:30:42.87	2020-06-17T00:00:00	2021-06-18T12:00:00	wiegox.com	*.wiegox.com	C=US, O=DigiCert Inc, OU=www.digicert.com, CN=Encryption Everywhere DV TLS CA - G1
2020-06-24T00:30:42.87	2020-06-17T00:00:00	2021-06-18T12:00:00	wiegox.com	*.wiegox.com	C=US, O=DigiCert Inc, OU=www.digicert.com, CN=Encryption Everywhere DV TLS CA - G1
2020-06-17T10:04:37.664	2020-06-17T00:00:00	2021-06-18T12:00:00	wiegox.com	*.wiegox.com	C=US, O=DigiCert Inc, OU=www.digicert.com, CN=Encryption Everywhere DV TLS CA - G1
2020-06-17T10:04:37.664	2020-06-17T00:00:00	2021-06-18T12:00:00	wiegox.com	*.wiegox.com	C=US, O=DigiCert Inc, OU=www.digicert.com, CN=Encryption Everywhere DV TLS CA - G1