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March 17, 2025 1:00 PM
Conventional cryptography is under threat. Upgrade to post-quantum cryptography with Cloudflare Zero Trust
We’re thrilled to announce that organizations can now protect their sensitive corporate network traffic against quantum threats by tunneling it through Cloudflare’s Zero Trust platform....
December 26, 2024 2:00 PM
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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November 08, 2024 2:00 PM
How we prevent conflicts in authoritative DNS configuration using formal verification
We describe how Cloudflare uses a custom Lisp-like programming language and formal verifier (written in Racket and Rosette) to prevent logical contradictions in our authoritative DNS nameserver’s behavior....
November 07, 2024 2:00 PM
A look at the latest post-quantum signature standardization candidates
NIST has standardized four post-quantum signature schemes so far, and they’re not done yet: there are fourteen new candidates in the running for standardization....
September 25, 2024 1:00 PM
Introducing Speed Brain: helping web pages load 45% faster
We are excited to announce the latest leap forward in speed – Speed Brain. 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, allowing pages to loa...
September 24, 2024 1:00 PM
Cloudflare helps verify the security of end-to-end encrypted messages by auditing key transparency for WhatsApp
Cloudflare is now verifying WhatsApp’s Key Transparency audit proofs to ensure the security of end-to-end encrypted messaging conversations without having to manually check QR codes. We are publishing the results of the proof verification to https://dash.key-transparency.cloudfla...
September 05, 2024 7:00 AM
A global assessment of third-party connection tampering
Cloudflare brings visibility to the practice of connection tampering as observed from our global network....
September 05, 2024 7:00 AM
Bringing insights into TCP resets and timeouts to Cloudflare Radar
New TCP resets and timeouts dataset on Cloudflare Radar surfaces connection tampering, scanning, DoS attacks, and more....
August 20, 2024 9:00 PM
NIST’s first post-quantum standards
NIST has published the first cryptographic standards for protecting against attacks from quantum computers. Learn what this means for you and your organization....
August 08, 2024 2:05 PM
Introducing Automatic SSL/TLS: securing and simplifying origin connectivity
This new Automatic SSL/TLS setting will maximize and simplify the encryption modes Cloudflare uses to communicate with origin servers by using the SSL/TLS Recommender....
March 08, 2024 2:00 PM
Harnessing chaos in Cloudflare offices
This blog post will cover the new sources of “chaos” that have been added to LavaRand and how you can make use of that harnessed chaos in your next application...
March 05, 2024 2:00 PM
The state of the post-quantum Internet
Nearly 2% of all TLS 1.3 connections established with Cloudflare are secured with post-quantum cryptography. What once was the topic of futuristic tech demos will soon be the new security baseline....
January 04, 2024 4:07 PM
Privacy Pass: upgrading to the latest protocol version
In this post, we explore the latest changes to Privacy Pass protocol. We are also excited to introduce a public implementation of the latest IETF draft of the Privacy Pass protocol — including a set of open-source templates that can be used to implement Privacy Pass Origins, Issu...
December 22, 2023 4:16 PM
Have your data and hide it too: an introduction to differential privacy
Providing software and web services that deliver value for users often requires measuring user behavior. In this blog we discuss emerging cryptographic and statistical techniques that enable collecting such measurements without violating user privacy...
October 02, 2023 1:00 PM
Birthday Week recap: everything we announced — plus an AI-powered opportunity for startups
Need a recap or refresher on all the big Birthday Week news this week? This recap has you covered...