What makes SPDY speedy?

What this post added

This post introduces and explains the SPDY protocol, highlighting its benefits for web browsing speed. It details how SPDY optimizes HTTP by allowing multiple requests and responses over a single TCP connection, thereby minimizing connection setup time, TCP slow start penalties, and blocking issues inherent in traditional HTTP over TCP. Cloudflare's adoption of SPDY is presented as a way to enhance website performance by making web browsing faster without replacing HTTP.