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

Results for*.ability.ee

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2020-02-06T08:05:45.4	2020-02-06T07:05:45	2020-05-06T07:05:45	ability.ee	*.ability.ee	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2020-02-06T08:05:45.4	2020-02-06T07:05:45	2020-05-06T07:05:45	ability.ee	*.ability.ee	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2020-02-06T08:05:45.232	2020-02-06T07:05:45	2020-05-06T07:05:45	ability.ee	*.ability.ee	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2020-02-06T08:05:45.232	2020-02-06T07:05:45	2020-05-06T07:05:45	ability.ee	*.ability.ee	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2020-01-28T17:05:02.24	2020-01-28T16:05:01	2020-04-27T16:05:01	ability.ee	*.ability.ee	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2020-01-28T17:05:02.24	2020-01-28T16:05:01	2020-04-27T16:05:01	ability.ee	*.ability.ee	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2020-01-28T17:05:02.026	2020-01-28T16:05:01	2020-04-27T16:05:01	ability.ee	*.ability.ee	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2020-01-28T17:05:02.026	2020-01-28T16:05:01	2020-04-27T16:05:01	ability.ee	*.ability.ee	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3