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

Results for*.iparam.org

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2020-05-06T21:18:45.784	2020-05-06T20:18:45	2020-08-04T20:18:45	*.iparam.org	*.iparam.org	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2020-05-06T21:18:45.784	2020-05-06T20:18:45	2020-08-04T20:18:45	*.iparam.org	*.iparam.org	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2020-05-06T21:18:45.538	2020-05-06T20:18:45	2020-08-04T20:18:45	*.iparam.org	*.iparam.org	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2020-05-06T21:18:45.538	2020-05-06T20:18:45	2020-08-04T20:18:45	*.iparam.org	*.iparam.org	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2020-02-26T21:09:37.641	2020-02-26T20:09:37	2020-05-26T20:09:37	*.iparam.org	*.iparam.org	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2020-02-26T21:09:37.641	2020-02-26T20:09:37	2020-05-26T20:09:37	*.iparam.org	*.iparam.org	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2020-02-26T21:09:37.457	2020-02-26T20:09:37	2020-05-26T20:09:37	*.iparam.org	*.iparam.org	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2020-02-26T21:09:37.457	2020-02-26T20:09:37	2020-05-26T20:09:37	*.iparam.org	*.iparam.org	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3