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

Results for*.charbroilred.com

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2019-05-01T12:21:23.807	2019-05-01T11:21:23	2019-07-30T11:21:23	elizabetarden.com	*.charbroilred.com	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2019-05-01T12:21:23.807	2019-05-01T11:21:23	2019-07-30T11:21:23	elizabetarden.com	*.charbroilred.com	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2019-05-01T12:21:23.349	2019-05-01T11:21:23	2019-07-30T11:21:23	elizabetarden.com	*.charbroilred.com	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2019-05-01T12:21:23.349	2019-05-01T11:21:23	2019-07-30T11:21:23	elizabetarden.com	*.charbroilred.com	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2019-02-05T10:16:48.614	2019-02-05T09:16:47	2019-05-06T09:16:47	charbroilred.com	*.charbroilred.com	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2019-02-05T10:16:48.614	2019-02-05T09:16:47	2019-05-06T09:16:47	charbroilred.com	*.charbroilred.com	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2019-02-05T10:16:47.251	2019-02-05T09:16:47	2019-05-06T09:16:47	charbroilred.com	*.charbroilred.com	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2019-02-05T10:16:47.251	2019-02-05T09:16:47	2019-05-06T09:16:47	charbroilred.com	*.charbroilred.com	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3