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

Results for*.privitest.com

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2020-04-30T18:23:09.328	2020-04-30T17:23:09	2020-07-29T17:23:09	privitest.com	*.privitest.com	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2020-04-30T18:23:09.328	2020-04-30T17:23:09	2020-07-29T17:23:09	privitest.com	*.privitest.com	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2020-04-30T18:23:09.15	2020-04-30T17:23:09	2020-07-29T17:23:09	privitest.com	*.privitest.com	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2020-04-30T18:23:09.15	2020-04-30T17:23:09	2020-07-29T17:23:09	privitest.com	*.privitest.com	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2020-04-30T18:21:43.092	2020-04-30T17:21:42	2020-07-29T17:21:42	privitest.com	*.privitest.com	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2020-04-30T18:21:43.092	2020-04-30T17:21:42	2020-07-29T17:21:42	privitest.com	*.privitest.com	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2020-04-30T18:21:42.943	2020-04-30T17:21:42	2020-07-29T17:21:42	privitest.com	*.privitest.com	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2020-04-30T18:21:42.943	2020-04-30T17:21:42	2020-07-29T17:21:42	privitest.com	*.privitest.com	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3