Maybe you have a stack of applications that needs to communicate. Seeing db.localhost is a little easier to read that db:3360, but especially if you have multip

Maybe you have a stack of applications that needs to communicate. Seeing db.localhost is a little easier to read that db:3360, but especially if you have multiple web applications. It's easier to read sso.localhost, api.localhost, and www.localhost. They also show having the webserver to the TLS, that might be helpful.