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

Results forwww.elastic.developertoolkit.io

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2025-09-23T13:32:38.452	2025-09-23T12:34:07	2025-12-22T12:34:06	www.elastic.developertoolkit.io	www.elastic.developertoolkit.io	C=US, O=Let's Encrypt, CN=R13
2025-09-23T13:32:37.819	2025-09-23T12:34:07	2025-12-22T12:34:06	www.elastic.developertoolkit.io	www.elastic.developertoolkit.io	C=US, O=Let's Encrypt, CN=R13
2025-09-02T08:44:34.215	2025-09-02T07:46:02	2025-12-01T07:46:01	www.elastic.developertoolkit.io	www.elastic.developertoolkit.io	C=US, O=Let's Encrypt, CN=R13
2025-09-02T08:44:32.884	2025-09-02T07:46:02	2025-12-01T07:46:01	www.elastic.developertoolkit.io	www.elastic.developertoolkit.io	C=US, O=Let's Encrypt, CN=R13