Instant Purge: invalidating cached content in under 150ms

Cloudflare has developed the fastest cache purge in the industry with a global purge latency of less than 150ms on average for purge by tags, hostnames, and prefixes. This represents a 90% improvement since May 2022. The company is also opening up more purge options to Free, Pro, and Business plans, which were previously only available to Enterprise customers. CacheDB, an indexing service built on RocksDB, has been introduced to manage the indexing and purging of cached files, improving cache retention times across their service.