Internship Experience: Cryptography Engineer
2020-04-09
Back in the summer of 2017 I was an intern at Cloudflare. During the scholastic year I was a grad student working on automorphic forms and computational Langlands at Berkeley....
Moving from reCAPTCHA to hCaptcha
2020-04-08
We recently migrated the CAPTCHA provider we use from Google's reCAPTCHA to a service provided by the independent hCaptcha. Here's a walk through of the rationale in more detail....
How To Use 1.1.1.1 w/ WARP App And Cloudflare Gateway To Protect Your Phone From Security Threats
2020-04-08
Starting today, you can get even more out of your 1.1.1.1 app. By adding Cloudflare Gateway’s secure DNS filtering to your 1.1.1.1 app, you can add a layer of security and block malicious domains flagged as phishing, command and control, or spam....
Project Crossbow: Lessons from Refactoring a Large-Scale Internal Tool
2020-04-07
Crossbow is a tool that is now allowing Cloudflare’s Technical Support Engineers to perform diagnostic activities from running commands (like traceroutes, cURL requests and DNS queries) to debugging product features and performance features using bespoke tools....
Conntrack tales - one thousand and one flows
2020-04-06
We were wondering - can we just enable Linux "conntrack"? How does it actually work? I volunteered to help the team understand the dark corners of the Linux's "conntrack" stateful firewall subsystem....
The Serverlist: Built with Workers, Single-Tenant Architecture, and more!
2020-04-04
Check out our fourteenth edition of The Serverlist below. Get the latest scoop on the serverless space, get your hands dirty with new developer tutorials, engage in conversations with other serverless developers, and find upcoming meetups and conferences to attend....
Trailblazing a Development Environment for Workers
2020-04-03
When I arrived at Cloudflare for an internship in the summer of 2018, I was taken on a tour, introduced to my mentor who took me out for coffee (shoutout to Preston), and given a quick whiteboard overview of how Cloudflare works....
Cloudflare Doubling Size of 2020 Summer Intern Class
2020-04-02
Today we are announcing that we will double the size of Cloudflare’s summer 2020 internship class....
The Mistake that Caused 1.1.1.3 to Block LGBTQIA+ Sites Today
2020-04-02
Today we made a mistake. The mistake caused a number of LGBTQIA+ sites to inadvertently be blocked by the new 1.1.1.1 for Families service. I wanted to walk through what happened, why, and what we've done to fix it....
Announcing the Beta for WARP for macOS and Windows
2020-04-01
While WARP started as an option within the 1.1.1.1 app, it's really a technology that can benefit any device connected to the Internet. In fact, one of the most common requests we've gotten over the last year is support for WARP for macOS and Windows. Today we're announcing exactly that....
Introducing 1.1.1.1 for Families
2020-04-01
Introducing 1.1.1.1 for Families — the easiest way to add a layer of protection to your home network and protect it from malware and adult content. ...
Cloudflare now supports security keys with Web Authentication (WebAuthn)!
2020-04-01
We’re excited to announce that Cloudflare now supports security keys as a two factor authentication (2FA) method for all users....
Announcing the Results of the 1.1.1.1 Public DNS Resolver Privacy Examination
2020-03-31
We took a big step toward improving Internet privacy and security with the launch of the 1.1.1.1 public DNS resolver. And we really meant privacy first. We were not satisfied with the status quo and believed that secure DNS resolution with transparent privacy practices should be the new normal. ...
Introducing Quicksilver: Configuration Distribution at Internet Scale
2020-03-30
At peak, Cloudflare’s network processes more than 14 million HTTP requests per second. We spend a lot of time thinking about the tools we use to make those requests faster and more secure....
Dogfooding from Home: How Cloudflare Built our Cloud VPN Replacement
2020-03-28
Rewind to 2015. Back then, as with many other companies, all of Cloudflare’s internally-hosted applications were reached via a hardware-based VPN. ...
Migrating from VPN to Access
2020-03-28
With so many people at Cloudflare now working remotely, it's worth stepping back and looking at the systems we use to get work done and how we protect them. Over the years we've migrated from a traditional "put it behind the VPN!" company to a modern zero-trust architecture. ...
Using Cloudflare to secure your cardholder data environment
2020-03-27
As part of our ongoing compliance efforts Cloudflare’s PCI scope is reviewed quarterly and after any significant changes to ensure all in-scope systems are operating in accordance with the PCI DSS....
Migrating to React land: Gatsby
2020-03-26
As our developer documentation grows so does the need for tooling. Let’s walk through how we migrated our documentation site to Gatsby to take full advantage of static generation and React. ...
Speeding up Linux disk encryption
2020-03-25
Encrypting data at rest is vital for Cloudflare with more than 200 data centres across the world. In this post, we will investigate the performance of disk encryption on Linux and explain how we made it at least two times faster for ourselves and our customers!...
The Bandwidth Alliance Charges Forward with New Partners - Alibaba, Zenlayer, and Cherry Servers
2020-03-24
We started the Bandwidth Alliance in 2018 with a group of like-minded cloud and networking partners. Our common goal was to help our mutual customers reduce or eliminate data transfer charges, sometimes known as "bandwidth” or “egress” fees, between the cloud and the consumer. ...
