One year ago Matt said 30000req/s: https://forum.caddyserver.com/t/can-i-use-caddy-for-a-high-t...
Re:Caddy 0.10 Released
by shawabawa3 on Friday April 21, 2017 @12:24PM
(#14166950)
yeah, I clearly misremembered the benchmark
It was slightly slower than nginx, but not enough to impact typical applications
Those are application level numbers (e.g. with logic and all).
Caddy should be able to handle an order of magnitude more req/s than that easily.