
4/1/2025 · Alex Krivit, Connor Harwood, Zaidoon Abd Al Hadi
What this post added
This post details the complete rebuild of Cloudflare's cache purge pipeline, introducing an active purge system using RocksDB (CacheDB) integrated with cache proxies. This architecture reduces storage requirements by 10x, improves throughput, and enables all purge methods (URL, hostname, tag, prefix, everything) to be available to all customers with sub-150ms purge times. It also details the new token bucket rate limiting system for purge requests across different plans.