Kaze

Kaze sits between your clients and origin servers, caching responses in memory to cut backend load and serve traffic in sub-milliseconds. Built on Cloudflare Pingora, it delivers RFC 9111 caching, grace mode, request coalescing, surrogate-key purging and ESI, plus a built-in firewall with rate limiting, geo- and bot-blocking. Prometheus metrics and a Helm chart make it production-ready on Kubernetes.