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

Results for*.centralserver.com

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2022-07-25T20:43:01.497	2022-07-25T19:43:01	2022-10-23T19:43:00	centralserver.com	*.centralserver.com	C=US, O=Let's Encrypt, CN=R3
2022-07-25T20:43:01.497	2022-07-25T19:43:01	2022-10-23T19:43:00	centralserver.com	*.centralserver.com	C=US, O=Let's Encrypt, CN=R3
2022-07-25T20:43:01.351	2022-07-25T19:43:01	2022-10-23T19:43:00	centralserver.com	*.centralserver.com	C=US, O=Let's Encrypt, CN=R3
2022-07-25T20:43:01.351	2022-07-25T19:43:01	2022-10-23T19:43:00	centralserver.com	*.centralserver.com	C=US, O=Let's Encrypt, CN=R3
2022-07-25T20:25:17.791	2022-07-25T19:25:17	2022-10-23T19:25:16	centralserver.com	*.centralserver.com	C=US, O=Let's Encrypt, CN=R3
2022-07-25T20:25:17.791	2022-07-25T19:25:17	2022-10-23T19:25:16	centralserver.com	*.centralserver.com	C=US, O=Let's Encrypt, CN=R3
2022-07-25T20:25:17.13	2022-07-25T19:25:17	2022-10-23T19:25:16	centralserver.com	*.centralserver.com	C=US, O=Let's Encrypt, CN=R3
2022-07-25T20:25:17.13	2022-07-25T19:25:17	2022-10-23T19:25:16	centralserver.com	*.centralserver.com	C=US, O=Let's Encrypt, CN=R3