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

Results forsei.dploy.com.br

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2022-11-23T19:58:42.582	2022-11-23T18:58:41	2023-02-21T18:58:40	app.sei.dploy.com.br	app.sei.dploy.com.br	C=US, O=Let's Encrypt, CN=R3
2022-11-23T19:58:41.591	2022-11-23T18:58:41	2023-02-21T18:58:40	app.sei.dploy.com.br	app.sei.dploy.com.br	C=US, O=Let's Encrypt, CN=R3
2022-11-23T19:55:42.469	2022-11-23T18:55:41	2023-02-21T18:55:40	painel.sei.dploy.com.br	painel.sei.dploy.com.br	C=US, O=Let's Encrypt, CN=R3
2022-11-23T19:55:42.187	2022-11-23T18:55:41	2023-02-21T18:55:40	painel.sei.dploy.com.br	painel.sei.dploy.com.br	C=US, O=Let's Encrypt, CN=R3
2022-11-23T19:49:37.592	2022-11-23T18:49:36	2023-02-21T18:49:35	services.sei.dploy.com.br	services.sei.dploy.com.br	C=US, O=Let's Encrypt, CN=R3
2022-11-23T19:49:36.856	2022-11-23T18:49:36	2023-02-21T18:49:35	services.sei.dploy.com.br	services.sei.dploy.com.br	C=US, O=Let's Encrypt, CN=R3