Cloudflare Announces Shared Compression Dictionaries
📦 Cloudflare is introducing support for shared compression dictionaries to reduce redundant transfers and speed page loads for sites that deploy frequently or are heavily crawled by agents. In Phase 1 the edge will passthrough Use-As-Dictionary and Available-Dictionary headers and respect dcb/dcz encodings; an open beta begins April 30, 2026. Later phases move delta compression and automatic dictionary generation into Cloudflare’s edge, simplifying origin logic and maximizing bandwidth and latency savings for versioned assets and returning visitors.
