The blog is under scheduled maintenance until Friday, 30 August 2024. For any issues, email [email protected].
2023-03-10
We have a huge number of servers of varying kinds, from varying vendors, spread over 285 cities worldwide. We need to be able to rapidly deploy various types of firmware updates to all of them, reliably, and automatically, without any kind of manual intervention....
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2022-07-19
We learnt a lot about Kafka on the way to 1 trillion messages, and built some interesting internal tools to ease adoption that will be explored in this blog post...
2022-03-31
This blogpost chronicles the recent CVEs investigation, our findings, and how we are helping secure Salt now and in the Quantum future...
2021-10-14
We've been studying password problems, including malicious logins using compromised credentials. Here's what we learned and here's where we think we can go from here with safer password systems....
2020-12-08
Imagine passwords for online services that never leave your device, encrypted or otherwise. OPAQUE is a new cryptographic protocol that makes this idea possible, giving you and only you full control of your password....
November 25, 2020 3:11 PM
We previously explained how and why we built Quicksilver. This second blog post is about the long journey to production which culminates with Kyoto Tycoon removal from Cloudflare infrastructure and points to the first signs of obsolescence....
August 21, 2020 11:00 AM
As part of my onboarding as an intern on the Spectrum (a layer 4 reverse proxy) team, I learned that many internal services dogfood Spectrum, as they are exposed to the Internet and benefit from layer 4 DDoS protection....
May 06, 2020 11:00 AM
This is the ongoing story of Bot Management at Cloudflare and also an introduction to a series of blog posts about the detection mechanisms powering it...
March 07, 2019 4:05 PM
With this post we illustrate the potential applications of Cloudflare Workers in relation to search engine optimization, which is more commonly referred to as ‘SEO’ using our research and testing over the past year making Sloth....
October 05, 2018 6:30 PM
We built Access to solve a problem here at Cloudflare: our VPN. Our team members hated the slowness and inconvenience of VPN but, that wasn’t the issue we needed to solve. The security risks posed by a VPN required a better solution....
February 21, 2018 7:00 PM
Today, v2 of Pwned Passwords was released as part of the Have I Been Pwned service offered by Troy Hunt. Containing over half a billion real world leaked passwords, this database provides a vital tool for correcting the course of how the industry combats modern threats against pa...
February 21, 2018 7:00 PM
Both in our real lives, and online, there are times where we need to authenticate ourselves - where we need to confirm we are who we say we are. This can be done using three things....
February 02, 2017 12:15 PM
The North American Network Operators Group (NANOG) is the loci of modern Internet innovation and the day-to-day cumulative network-operational knowledge of thousands and thousands of network engineers....
December 14, 2016 2:25 PM
We use Salt to manage our ever growing global fleet of machines. Salt is great for managing configurations and being the source of truth. We use it for remote command execution and for network automation tasks....
November 08, 2016 6:56 PM
The strength of the Internet is its ability to interconnect all sorts of networks — big data centers, e-commerce websites at small hosting companies, Internet Service Providers (ISP), and Content Delivery Networks (CDN) — just to name a few. ...
June 24, 2016 4:31 PM
We launched DNSSEC late last year and are already signing 56.9 billion DNS record sets per day. At this scale, we care a great deal about compute cost....
November 05, 2014 2:25 PM
DNSSEC is an extension to DNS: it provides a system of trust for DNS records. In this post we examine some of the complications of DNSSEC, and what CloudFlare plans to do to reduce any negative impact they might have. ...
November 21, 2013 9:00 AM
At CloudFlare, we are always looking for better ways to secure the data we’re entrusted with. This means hardening our system against outside threats such as hackers, but it also means protecting against insider threats. ...
June 19, 2012 3:56 PM
The other day I wrote a long post describing in detail how we used to and how we now store customer passwords. Some people were surprised that we were open about this....
June 17, 2012 10:08 PM
Over the last few weeks a number of companies have seen their password databases leaked onto the web and found that despite having made some effort to protect them many of the passwords were easily uncovered. ...
