Efficiently compressing dynamically generated web content

This post introduces the concept of using external dictionaries for compression, specifically for dynamically generated web content. It highlights the limitations of generic compression like gzip and proposes solutions like SDCH (Shared Dictionary Compression over HTTP) and ESI (Edge Side Includes) to achieve higher compression ratios by referencing common content blocks stored in a shared dictionary. The post details how SDCH works with VCDIFF and discusses the challenges of dictionary generation and management, while ESI offers an alternative by including unchanging parts of a page as separate mini-pages. This contributes to the evolution of cache management by exploring methods to reduce the size of dynamic content, thereby mitigating latency.