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

Results forwww.holguin.inf.cu

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2021-07-12T03:48:32.993	2021-07-12T02:48:32	2021-10-10T02:48:31	www.holguin.inf.cu	www.holguin.inf.cu	C=US, O=Let's Encrypt, CN=R3
2021-07-12T03:48:32.836	2021-07-12T02:48:32	2021-10-10T02:48:31	www.holguin.inf.cu	www.holguin.inf.cu	C=US, O=Let's Encrypt, CN=R3
2021-05-13T03:49:11.496	2021-05-13T02:49:11	2021-08-11T02:49:11	www.holguin.inf.cu	www.holguin.inf.cu	C=US, O=Let's Encrypt, CN=R3
2021-05-13T03:49:11.24	2021-05-13T02:49:11	2021-08-11T02:49:11	www.holguin.inf.cu	www.holguin.inf.cu	C=US, O=Let's Encrypt, CN=R3
2021-03-14T04:48:08.521	2021-03-14T03:48:08	2021-06-12T03:48:08	www.holguin.inf.cu	www.holguin.inf.cu	C=US, O=Let's Encrypt, CN=R3
2021-03-14T04:48:08.301	2021-03-14T03:48:08	2021-06-12T03:48:08	www.holguin.inf.cu	www.holguin.inf.cu	C=US, O=Let's Encrypt, CN=R3
2021-01-13T04:53:37.063	2021-01-13T03:53:36	2021-04-13T03:53:36	www.holguin.inf.cu	www.holguin.inf.cu	C=US, O=Let's Encrypt, CN=R3
2021-01-13T04:53:36.909	2021-01-13T03:53:36	2021-04-13T03:53:36	www.holguin.inf.cu	www.holguin.inf.cu	C=US, O=Let's Encrypt, CN=R3
2020-11-13T20:43:37.303	2020-11-13T19:43:37	2021-02-11T19:43:37	www.holguin.inf.cu	www.holguin.inf.cu	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2020-11-13T20:43:37.09	2020-11-13T19:43:37	2021-02-11T19:43:37	www.holguin.inf.cu	www.holguin.inf.cu	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3