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

Results for*.kool.zone

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2022-02-28T06:09:30.201	2021-10-20T00:00:00	2022-10-20T23:59:59	kool.zone	*.kool.zone	C=US, O=DigiCert Inc, OU=www.digicert.com, CN=Encryption Everywhere DV TLS CA - G1
2022-02-28T06:09:30.201	2021-10-20T00:00:00	2022-10-20T23:59:59	kool.zone	*.kool.zone	C=US, O=DigiCert Inc, OU=www.digicert.com, CN=Encryption Everywhere DV TLS CA - G1
2021-10-20T04:25:22.864	2021-10-20T00:00:00	2022-10-20T23:59:59	kool.zone	*.kool.zone	C=US, O=DigiCert Inc, OU=www.digicert.com, CN=Encryption Everywhere DV TLS CA - G1
2021-10-20T04:25:22.864	2021-10-20T00:00:00	2022-10-20T23:59:59	kool.zone	*.kool.zone	C=US, O=DigiCert Inc, OU=www.digicert.com, CN=Encryption Everywhere DV TLS CA - G1