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

Results for*.accern.org

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2019-12-18T08:05:52.499	2019-12-18T07:05:52	2020-03-17T07:05:52	accern.org	*.accern.org	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2019-12-18T08:05:52.499	2019-12-18T07:05:52	2020-03-17T07:05:52	accern.org	*.accern.org	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2019-12-18T08:05:52.278	2019-12-18T07:05:52	2020-03-17T07:05:52	accern.org	*.accern.org	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2019-12-18T08:05:52.278	2019-12-18T07:05:52	2020-03-17T07:05:52	accern.org	*.accern.org	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2019-09-11T05:58:51.75	2019-09-11T04:58:51	2019-12-10T04:58:51	accern.org	*.accern.org	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2019-09-11T05:58:51.75	2019-09-11T04:58:51	2019-12-10T04:58:51	accern.org	*.accern.org	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2019-09-11T05:58:51.115	2019-09-11T04:58:51	2019-12-10T04:58:51	accern.org	*.accern.org	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2019-09-11T05:58:51.115	2019-09-11T04:58:51	2019-12-10T04:58:51	accern.org	*.accern.org	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3