H2O the optimized HTTP/1.x, HTTP/2 server oktavia × Powered by Oktavia /oktavia Top Install Configure FAQ Blog Source H2O is a very fast HTTP server written in C. It can also be used as a library . HTTP/1.0, HTTP/1.1 uses PicoHTTPParser HTTP/2 supports the final version 1 negotiation methods: NPN, ALPN, Upgrade, direct dependency and weight-based prioritization server push WebSocket 2 TLS uses OpenSSL or LibreSSL forward secrecy AEAD ciphers including the upcoming ones preferred by Google Chrome 3 OCSP stapling 4 session resumption and session tickets 5 static file serving conditional GET using last-modified / etag directory listing mime-type configuration reverse proxy HTTP/1.x only 6 persistent upstream connection access-logging apache-like format strings graceful restart and self-upgrade Below chart shows the scores recorded on Amazon EC2 running ...