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

Results for*.jsontools.com

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2021-05-11T15:26:08.886	2021-05-11T00:00:00	2022-05-11T23:59:59	jsontools.com	*.jsontools.com	C=US, O=DigiCert Inc, OU=www.digicert.com, CN=Encryption Everywhere DV TLS CA - G1
2021-05-11T15:26:08.886	2021-05-11T00:00:00	2022-05-11T23:59:59	jsontools.com	*.jsontools.com	C=US, O=DigiCert Inc, OU=www.digicert.com, CN=Encryption Everywhere DV TLS CA - G1
2020-05-08T06:04:35.997	2020-05-08T00:00:00	2021-05-09T12:00:00	jsontools.com	*.jsontools.com	C=US, O=DigiCert Inc, OU=www.digicert.com, CN=Encryption Everywhere DV TLS CA - G1
2020-05-08T06:04:35.997	2020-05-08T00:00:00	2021-05-09T12:00:00	jsontools.com	*.jsontools.com	C=US, O=DigiCert Inc, OU=www.digicert.com, CN=Encryption Everywhere DV TLS CA - G1