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

Results for*.buying.cloud

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2020-05-21T11:46:01.025	2020-02-09T00:00:00	2021-02-09T12:00:00	buying.cloud	*.buying.cloud	C=US, O=DigiCert Inc, OU=www.digicert.com, CN=Encryption Everywhere DV TLS CA - G1
2020-05-21T11:46:01.025	2020-02-09T00:00:00	2021-02-09T12:00:00	buying.cloud	*.buying.cloud	C=US, O=DigiCert Inc, OU=www.digicert.com, CN=Encryption Everywhere DV TLS CA - G1
2020-02-09T14:41:11.639	2020-02-09T00:00:00	2021-02-09T12:00:00	buying.cloud	*.buying.cloud	C=US, O=DigiCert Inc, OU=www.digicert.com, CN=Encryption Everywhere DV TLS CA - G1
2020-02-09T14:41:11.639	2020-02-09T00:00:00	2021-02-09T12:00:00	buying.cloud	*.buying.cloud	C=US, O=DigiCert Inc, OU=www.digicert.com, CN=Encryption Everywhere DV TLS CA - G1