H2O is a new generation HTTP server that provides quicker response to users with less CPU utilization when compared to older generation of web servers. Designed from ground-up, the server takes full advantage of HTTP/2 features including prioritized content serving and server push, promising outstanding experience to the visitors of your web site.
Explanation of the benchmark charts can be found in the benchmarks page.
Key Features
- HTTP/1.0, HTTP/1.1
- HTTP/2
- full support for dependency and weight-based prioritization with server-side tweaks
- cache-aware server push
- TCP Fast Open
- TLS
- session resumption (standalone & memcached)
- session tickets with automatic key rollover
- automatic OCSP stapling
- forward secrecy & fast AEAD ciphers1
- private key protection using privilege separation
- static file serving
- FastCGI
- reverse proxy
- scriptable using mruby (Rack-based)
- graceful restart and self-upgrade
Notes:
- chacha20-poly1305: see Do the ChaCha: better mobile performance with cryptography