HPACK: the silent killer (feature) of HTTP/2

What this post added

This post details the implementation and benefits of HPACK header compression for HTTP/2. It explains how HPACK, unlike previous compression methods, is resilient to attacks like CRIME and uses static and dynamic dictionaries along with Huffman encoding to achieve significant compression ratios for both request and response headers. The post quantifies these savings, showing a 76% compression for ingress headers and a 53% reduction in total ingress traffic, and a 69% compression for egress headers, contributing to overall performance improvements.