What happens if one of the Auth0 Signals “satellites” goes down?

Question: What happens if one of the Auth0 Signals “satellites” goes down?

Answer:

If a “satellite” goes down because of a failure at application or infrastructure level (the full AWS Region goes down), then another AWS Region will take over and will process the traffic until the “satellite” goes up again. The DNS service uses anycast to find the closest server available using the lowest average latency as part of the name resolve algorithm.