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Shared Dictionaries: compression that keeps up with the agentic web | The Cloudflare Blog

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Today, we’re excited to give you a sneak peek of our support for shared compression dictionaries, show you how it improves page load times, and reveal when you’ll be able to try the beta yourself.

Web pages have grown 6-9% heavier every year for the past decade, spurred by the web becoming more framework-driven, interactive, and media-rich. Nothing about that trajectory is changing. What is changing is how often those pages get rebuilt and how many clients request them. Both are skyrocketing because of agents. Shared dictionaries shrink asset transfers from servers to browsers so pages load faster with less bloat on the wire, especially for returning users or visitors on a slow connection. Instead of re-downloading entire JavaScript bundles after every deploy, the browser tells the…

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