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

Results forcliente.byhunter.com.br

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2020-07-22T19:01:04.063	2020-07-22T18:01:03	2020-10-20T18:01:03	accounts.universalit.co.za	cliente.byhunter.com.br	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2020-07-22T19:01:03.758	2020-07-22T18:01:03	2020-10-20T18:01:03	accounts.universalit.co.za	cliente.byhunter.com.br	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2020-07-22T19:00:56.982	2020-07-22T18:00:56	2020-10-20T18:00:56	client.chudworth.com	cliente.byhunter.com.br	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2020-07-22T19:00:56.685	2020-07-22T18:00:56	2020-10-20T18:00:56	client.chudworth.com	cliente.byhunter.com.br	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2020-07-20T20:00:23.922	2020-07-20T19:00:23	2020-10-18T19:00:23	accounts.universalit.co.za	cliente.byhunter.com.br	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2020-07-20T20:00:23.771	2020-07-20T19:00:23	2020-10-18T19:00:23	accounts.universalit.co.za	cliente.byhunter.com.br	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2020-07-20T20:00:18.294	2020-07-20T19:00:18	2020-10-18T19:00:18	cliente.byhunter.com.br	cliente.byhunter.com.br	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
2020-07-20T20:00:18.089	2020-07-20T19:00:18	2020-10-18T19:00:18	cliente.byhunter.com.br	cliente.byhunter.com.br	C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3