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

Results for*.restcamp.com

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2019-12-06T17:43:33.309	2019-12-03T00:00:00	2020-12-03T12:00:00	restcamp.com	*.restcamp.com	C=US, O=DigiCert Inc, OU=www.digicert.com, CN=Encryption Everywhere DV TLS CA - G1
2019-12-06T17:43:33.309	2019-12-03T00:00:00	2020-12-03T12:00:00	restcamp.com	*.restcamp.com	C=US, O=DigiCert Inc, OU=www.digicert.com, CN=Encryption Everywhere DV TLS CA - G1
2019-12-03T09:22:11.25	2019-12-03T00:00:00	2020-12-03T12:00:00	restcamp.com	*.restcamp.com	C=US, O=DigiCert Inc, OU=www.digicert.com, CN=Encryption Everywhere DV TLS CA - G1
2019-12-03T09:22:11.25	2019-12-03T00:00:00	2020-12-03T12:00:00	restcamp.com	*.restcamp.com	C=US, O=DigiCert Inc, OU=www.digicert.com, CN=Encryption Everywhere DV TLS CA - G1