I’m wildly guessing here, but I assume that there are many tiers of load balancing to turn your initial request into the message that reaches the thing that giv

I’m wildly guessing here, but I assume that there are many tiers of load balancing to turn your initial request into the message that reaches the thing that gives back your file data. They also likely do have specialized hardware in various parts of the AWS infrastructure. A service that can handle tens of millions of requests per second can probably outscale most DDoS attacks without further engineering.