What you just saw: Your browser sent real HTTP requests to a Cachee server running on AWS. The response times you see include network round-trip from your location to us-east-1 — the actual cache engine read is 28.9 nanoseconds, but the internet adds ~20-80ms on top. The point: even with a full network round-trip, Cachee's server-side processing is so fast that the response is dominated entirely by network physics, not cache latency. With an in-process deployment (sidecar or SDK), you eliminate the network entirely and get the raw 28.9ns.