The microbot pod exposes port 80 only on the pods IP which is part of a subnet and not directly accessible unless you have access to the network being used by the pods. The traefik pod exposes port 80 on the pod and also maps that port to 80 on each node port. This was if you go to any node on port 80 you’ll be sent to port 80 of the pod (which then redirects you to 80 of the microbot)

Hope that helps clarify.