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

Results forwww.user2.noextraining.com

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2023-05-12T12:38:28.535	2023-05-12T11:38:28	2023-08-10T11:38:27	www.user2.noextraining.com	www.user2.noextraining.com	C=US, O=Let's Encrypt, CN=R3
2023-05-12T12:38:28.306	2023-05-12T11:38:28	2023-08-10T11:38:27	www.user2.noextraining.com	www.user2.noextraining.com	C=US, O=Let's Encrypt, CN=R3
2023-02-21T13:25:21.394	2023-02-21T12:25:21	2023-05-22T12:25:20	www.user2.noextraining.com	www.user2.noextraining.com	C=US, O=Let's Encrypt, CN=R3
2023-02-21T13:25:21.294	2023-02-21T12:25:21	2023-05-22T12:25:20	www.user2.noextraining.com	www.user2.noextraining.com	C=US, O=Let's Encrypt, CN=R3