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

Results for*.xhtdmi.com

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2020-09-15T19:49:49.061	2020-09-15T18:49:48	2020-12-14T18:49:48	frobtierairlines.com	*.xhtdmi.com	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2020-09-15T19:49:49.061	2020-09-15T18:49:48	2020-12-14T18:49:48	frobtierairlines.com	*.xhtdmi.com	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2020-09-15T19:49:48.825	2020-09-15T18:49:48	2020-12-14T18:49:48	frobtierairlines.com	*.xhtdmi.com	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2020-09-15T19:49:48.825	2020-09-15T18:49:48	2020-12-14T18:49:48	frobtierairlines.com	*.xhtdmi.com	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2020-06-19T09:08:16.688	2020-06-19T08:08:15	2020-09-17T08:08:15	xhtdmi.com	*.xhtdmi.com	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2020-06-19T09:08:16.688	2020-06-19T08:08:15	2020-09-17T08:08:15	xhtdmi.com	*.xhtdmi.com	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2020-06-19T09:08:16.015	2020-06-19T08:08:15	2020-09-17T08:08:15	xhtdmi.com	*.xhtdmi.com	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2020-06-19T09:08:16.015	2020-06-19T08:08:15	2020-09-17T08:08:15	xhtdmi.com	*.xhtdmi.com	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3