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

Results for*.goong2000.com

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2021-06-09T13:27:12.664	2021-06-09T12:27:12	2021-09-07T12:27:11	goong2000.com	*.goong2000.com	C=US, O=Let's Encrypt, CN=R3
2021-06-09T13:27:12.664	2021-06-09T12:27:12	2021-09-07T12:27:11	goong2000.com	*.goong2000.com	C=US, O=Let's Encrypt, CN=R3
2021-06-09T13:27:12.412	2021-06-09T12:27:12	2021-09-07T12:27:11	goong2000.com	*.goong2000.com	C=US, O=Let's Encrypt, CN=R3
2021-06-09T13:27:12.412	2021-06-09T12:27:12	2021-09-07T12:27:11	goong2000.com	*.goong2000.com	C=US, O=Let's Encrypt, CN=R3
2021-04-09T12:29:52.436	2021-04-09T11:29:52	2021-07-08T11:29:52	goong2000.com	*.goong2000.com	C=US, O=Let's Encrypt, CN=R3
2021-04-09T12:29:52.436	2021-04-09T11:29:52	2021-07-08T11:29:52	goong2000.com	*.goong2000.com	C=US, O=Let's Encrypt, CN=R3
2021-04-09T12:29:52.209	2021-04-09T11:29:52	2021-07-08T11:29:52	goong2000.com	*.goong2000.com	C=US, O=Let's Encrypt, CN=R3
2021-04-09T12:29:52.209	2021-04-09T11:29:52	2021-07-08T11:29:52	goong2000.com	*.goong2000.com	C=US, O=Let's Encrypt, CN=R3