Today we're announcing SPDY protocol support for your AppHarbor applications. SPDY is an experimental protocol pioneered by Google which is designed to minimize latency of web pages. It is available immediately on all shared and dedicated load balancers in the US and EU regions. Among other things it allows for efficient use of available bandwidth by multiplexing concurrent streams over a single TCP connection and compressing HTTP headers. Here's an example of SPDY in action from last year's Google I/O:
To enable SPDY on an existing application simply click the button on your application's settings page. SPDY is enabled by default on all new applications. Since the protocol and the nginx implementation we use are still considered experimental it'll continue to be configurable for a while.