Can I connect backend service to Traefik (Point-to-site)

Hello, is it possible to create a szenario with Traefik, simliar to what cloudflare does with Argo Tunnel, that the service connet to the Traefik instance?

So that I can host Traefik with public access, but I don't need to create a route to the backend services, because these services are connect to theTraefik instance. Similar to Point-to-site.