Ability to handle more than 10,000 simultaneous connections with a low memory.
Handling of static files, index files, and autoindexing
Reverse proxy with caching
Load balancing with inband health checks
TLS/SSL with SNI and OCSP stapling support, via OpenSSL.
FastCGI, SCGI, uWSGI support with caching
FastCGI via PHP (PHPFPM) support with caching
Name and IP addressbased virtual servers
SPDY protocol support
WebSockets and HTTP/1.1 Upgrade (101 Switching Protocols)
FLV and MP4 streaming
Web page access authentication
gzip compression and decompression
Custom logging with onthefly gzip compression
Response rate and concurrent requests limiting
Server Side Includes
IP addressbased GeoLocation
XSLT data processing
Embedded Perl scripting
SMTP, POP3, and IMAP proxy
Authentication using an external HTTP server
Upgrading executable and configuration without client connections loss and a modulebased architecture.