Cache

July 30, 2026

Dogfooding at scale: migrating cdnjs to Cloudflares Developer Platform

We moved cdnjs, serving 9 billion requests a day, entirely onto Cloudflare's Developer Platform. That means were running one of the Internet's busiest open-source CDNs on our own building blocks, and we pushed Workflows and Workers limits higher for everyone.

July 23, 2026

Introducing Cache Response Rules

Perhaps youve seen something that should sail out of cache get dragged back to the origin by a stray Set-Cookie or Cache-Control, headers that can be difficult to change on the origin itself. Cache Response Rules is the fix, applied at the right time.

July 10, 2026

Improving Smart Tiered Cache for Public Cloud Regions

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.

July 6, 2026

Your Worker can now have its own cache in front of it

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

April 2, 2026

Why we're rethinking cache for the AI era

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.

September 29, 2025

15 years of helping build a better Internet: a look back at Birthday Week 2025

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.

July 17, 2025

Quicksilver v2: evolution of a globally distributed key-value store (Part 2)

This is part two of a story about how we overcame the challenges of making a complex system more scalable.

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 Cloudflares distributed key-value store that serves over 3 billion keys per second globally.

April 1, 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.

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

September 30, 2024

Wrapping up another Birthday Week celebration

Recapping all the big announcements made during 2024s Birthday Week.

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.

September 24, 2024

Instant Purge: invalidating cached content in under 150ms

Weve 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.

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 thats not all we're also introducing new configuration options for Cache Rules

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 Cloudflares Integrations Marketplace Sentry, Turso and Momento

June 1, 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 located far away

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 its clear the time is ripe for evolving rules-based caching on Cloudflare

August 12, 2022

Crawler Hints supports Microsofts 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