Improving Smart Tiered Cache for Public Cloud Regions
2026-07-10
Smart Tiered Cache allows for precise upper tier selection for origins hosted on AWS, GCP, Azure, and Oracle Cloud with customer-provided cloud region hints....
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Your Worker can now have its own cache in front of it
2026-07-06
We are launching Workers Cache, a regionally tiered cache that sits directly in front of your Worker entrypoints. Infinitely composable, configured via standard HTTP headers...
Why we're rethinking cache for the AI era
2026-04-02
The explosion of AI-bot traffic, representing over 10 billion requests per week, has opened up new challenges and opportunities for cache design. We look at some of the ways AI bot traffic differs from humans, how this impacts CDN cache, and some early ideas for how Cloudflare is designing systems to improve the AI and human experience....
15 years of helping build a better Internet: a look back at Birthday Week 2025
2025-09-29
Birthday WeekPartnersDeveloper PlatformWorkers LaunchpadPerformanceSecurityCacheSpeedDevelopersAI1.1.1.1Application SecurityApplication ServicesBotsCDNCloudflare for StartupsCloudflare OneCloudflare Zero TrustCloudflare Workers
Rust-powered core systems, post-quantum upgrades, developer access for students, PlanetScale integration, open-source partnerships, and our biggest internship program ever — 1,111 interns in 2026....
Quicksilver v2: evolution of a globally distributed key-value store (Part 2)
2025-07-17
This is part two of a story about how we overcame the challenges of making a complex system more scalable....
MORE POSTS
July 10, 2025
Quicksilver v2: evolution of a globally distributed key-value store (Part 1)
This blog post is the first of a series, in which we share our journey in redesigning Quicksilver — Cloudflare’s distributed key-value store that serves over 3 billion keys per second globally. ...
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April 01, 2025
“You get Instant Purge, and you get Instant Purge!” — all purge methods now available to all customers
Following up on having the fastest purge in the industry, we have now increased Instant Purge quotas across all Cloudflare plans. ...
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December 26, 2024
Sometimes I cache: implementing lock-free probabilistic caching
If you want to know what cache revalidation is, how it works, and why it can involve rolling a die, read on. This blog post presents a lock-free probabilistic approach to cache revalidation, along ...
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September 30, 2024
Wrapping up another Birthday Week celebration
Recapping all the big announcements made during 2024’s Birthday Week....
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September 25, 2024
Introducing Speed Brain: helping web pages load 45% faster
Speed Brain uses the Speculation Rules API to prefetch content for the user's likely next navigations. The goal is to download a web page to the browser before a user navigates to it. ...
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September 24, 2024
Instant Purge: invalidating cached content in under 150ms
We’ve built the fastest cache purge in the industry by offering a global purge latency for purge by tags, hostnames, and prefixes of less than 150ms on average (P50), representing a 90% improvement. ...
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October 24, 2023
Cache Rules are now GA: precision control over every part of your cache
Today, we're thrilled to share that Cache Rules, along with several other Rules products, are generally available (GA). But that’s not all — we're also introducing new configuration options for Cache Rules...
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September 28, 2023
Cloudflare Integrations Marketplace introduces three new partners: Sentry, Momento and Turso
We introduced integrations with Supabase, PlanetScale, Neon and Upstash. Today, we are thrilled to introduce our newest additions to Cloudflare’s Integrations Marketplace – Sentry, Turso and Momento...
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June 01, 2023
Reduce latency and increase cache hits with Regional Tiered Cache
Regional Tiered Cache provides an additional layer of caching for Enterprise customers who have a global traffic footprint and want to serve content faster by avoiding network latency when there is a cache miss in a lower-tier, resulting in an upper-tier fetch in a data center lo...
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September 27, 2022
Introducing Cache Rules: precision caching at your fingertips
We have spent the last ten years learning how customers use Page Rules to customize their cached content, and it’s clear the time is ripe for evolving rules-based caching on Cloudflare...
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August 12, 2022
Crawler Hints supports Microsoft’s IndexNow in helping users find new content
Cloudflare is uniquely positioned to help give crawlers hints about when they should recrawl, if new content has been added, or if content on a site has recently changed...
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July 28, 2021
Introducing Smart Edge Revalidation
When both Last-Modified and Etag headers are absent from the origin response, Smart Edge Revalidation will use the time the object was cached on Cloudflare as the Last-Modified header value. When ...
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May 21, 2021
CDN-Cache-Control: Precision Control for your CDN(s)
A new set of HTTP response headers provide control over our CDN’s caching decisions. CDN-Cache-Control allows customers to control how our CDN behaves without affecting the behavior of other caches....
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March 19, 2021
Third Time’s the Cache, No More
Up until now, we wouldn’t cache requests with query strings until we saw them three times. We trace that behavior back to 2010, examine why we might have needed it, and show ourselves why we don’t need it anymore....
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March 16, 2021
Automatic Platform Optimization post-launch report
We explored almost 200 websites with the activated Automatic Platform Optimization feature in Chrome User Experience Report data. Automatic Platform Optimization consistently demonstrated better aggregate performance among sites we analyzed in TTFB, First Paint, FCP, and LCP metr...
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