CacheCatalyst: Enhancing Web Caching for the Latency-Constrained Internet
summary
CacheCatalyst validates a whole page cache on the HTML fetch by adding an X-Cache-Resources header from browser and an X-Validated response flag, implemented as a service worker + modified Caddy (500–600 LOC). Evaluation on 10,000 pages across 12 network conditions shows average page-load improvement ~40%, median RTT reduction up to 78% for 1-minute revisits and 53% at one week, about 4.3× RTT elimination per page, and protocol overhead ≈1.5 KB/s versus ~1 MB/s for HTTP/2 push.
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chapters (14)
- 0:00CacheCatalyst introduction
- 1:25Slow revisits despite cache
- 3:39Caching solution limits
- 5:02Latency vs bandwidth
- 7:59CacheCatalyst core idea
- 9:50How CacheCatalyst works
- 11:40Service worker implementation
- 12:45Evaluation setup and metrics
- 14:52Round-trip time reduction
- 17:04HTTP/2 server push comparison
- 18:56Overhead and scalability
- 19:18Key takeaways
- 20:02Limitations and future work
- 22:13Q&A
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