A new look on your Cloudflare dashboard

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Building a great customer experience is a top priority here at Cloudflare. Over the last week, we have been  slowly rolling out an improvement to our customer dashboard – specifically Continue Reading

EU Terrorist Content Online proposal – political haste and unintended consequences

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Photo by Sara Kurfeß / Unsplash In September, the European Commission presented a legislative proposal to address the removal of terrorist content online. There has been significant political pressure, particularly Continue Reading

How well do you know website performance?

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! How quickly did this blog post load? Did you happen to notice? Most website visitors do notice that sort of thing, even if they don’t realize it consciously. In fact, Continue Reading

Cloudflare Apps Fund 2.0

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Today we are launching the second iteration of the Cloudflare App Developer Fund. This is an investment fund started in partnership with Venrock, Pelion Venture Partners, and New Enterprise Associates. Continue Reading

L4Drop: XDP DDoS Mitigations

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers!Floodgate based DDoS mitigation pipeline This pipeline has served us well, but a lot has changed since we implemented Floodgate. Our new Gen9 and ARM servers use different network interface cards Continue Reading

Working out Backend Knots and Building Routers (Austin Real World Serverless Video Recap)

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! I work in Developer Relations at Cloudflare and I’m fortunate to have top-notch developers around me who are willing to share their knowledge with the greater developer community. I produced Continue Reading

Every 7.8μs your computer’s memory has a hiccup

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Modern DDR3 SDRAM. Source: BY-SA/4.0 by Kjerish During my recent visit to the Computer History Museum in Mountain View, I found myself staring at some ancient magnetic core memory. Source: Continue Reading

Serverless Progressive Web Apps using React with Cloudflare Workers

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Let me tell you the story of how I learned that you can build Progressive Web Apps on Cloudflare’s network around the globe with one JavaScript bundle that runs both Continue Reading

Fast Google Fonts with Cloudflare Workers

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Google Fonts is one of the most common third-party resources on the web, but carries with it significant user-facing performance issues. Cloudflare Workers running at the edge is a great Continue Reading

Bandwidth Alliance Partners – Exciting Choices

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! We are tremendously excited about the value our Bandwidth Alliance partner ecosystem adds to our customers. We’re on a mission to help make the internet a better place; and ensuring Continue Reading

Expanding the Bandwidth Alliance: sharing the benefits of interconnected networks

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! At Cloudflare, our mission is to help build a better Internet. That means making the Internet faster, smarter, safer, but also more cost efficient with the help of our partners. Continue Reading

Introducing Apps with Workers

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Since its inception, Cloudflare Apps has made it possible for website owners to install a tool or a service directly onto a domain they have that lives on the Cloudflare Continue Reading

Announcing SSH Access through Cloudflare

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! We held our annual Cloudflare Retreat last week. Over 750 team members from nearly a dozen offices spent three days learning, bonding and some of them got to smash a Continue Reading

How a Nigerian ISP Accidentally Knocked Google Offline

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Last Monday evening — 12 November 2018 — Google and a number of other services experienced a 74 minute outage. It’s not the first time this has happened; and while Continue Reading

The rise of multivector DDoS attacks

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! It’s been a while since we last wrote about Layer 3/4 DDoS attacks on this blog. This is a good news – we’ve been quietly handling the daily onslaught of Continue Reading

1 Thing You Can Do To Make Your Internet Safer And Faster

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! On April 1st, 2018, we announced 1.1.1.1, the fastest public DNS resolver in the world ???. Today, we are launching the 1.1.1.1 mobile app to make it incredibly easy to Continue Reading

Improving RubyDocs with Cloudflare Workers and Workers KV

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! The following is a guest post from Manuel Meuer, Berlin based web developer, entrepreneur, and Ruby on Rails enthusiast. In 2010, he founded Kraut Computing as a one-man web dev Continue Reading

Lagos, Nigeria – Cloudflare’s 155th city

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! According to a published report earlier this year, 84% of the Nigerian population own a mobile device (193 million population and 162 million mobile subscriptions). Again, that’s #1 for any Continue Reading

Introducing Spectrum with Load Balancing

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! We’re excited to announce the full integration of Cloudflare Spectrum with Load Balancing. Combining Spectrum with Load Balancing enables traffic management of TCP connections utilising the same battle tested Load Continue Reading

Cloudflare Peering Portal – Beta

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! It can be a big deal for Internet users when Cloudflare rolls into town. After our recent Mongolia launch, we received lots of feedback from happy customers that all of Continue Reading

Why I’m helping Cloudflare grow in Germany, Austria, and Switzerland

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Why Cloudflare? I am incredibly excited to announce that I’m joining Cloudflare as the Head of DACH (Deutschland, Austria & Switzerland-CH) to help to expand Cloudflare’s demand in Germany, Austria, Continue Reading

A Question of Timing

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Photo by Aron / Unsplash When considering website performance, the term TTFB – time to first byte – crops up regularly. Often we see measurements from cURL and Chrome, and Continue Reading

Serverless Rust with Cloudflare Workers

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! The Workers team just announced support for WebAssembly (WASM) within Workers. If you saw my post on Internet Native Apps, you’ll know that I believe WebAssembly will play a big Continue Reading

Happy National Coming Out Day: Stories from Proudflare

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Today is the 30th Anniversary of National Coming Out Day. We wanted to share some coming out stories from members of Proudflare and draw attention to resources the Human Rights Continue Reading

Optimizing HTTP/2 prioritization with BBR and tcp_notsent_lowat

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Getting the best end-user performance from HTTP/2 requires good support for resource prioritization. While most web servers support HTTP/2 prioritization, getting it to work well all the way to the Continue Reading

Introducing Single Sign-On for the Cloudflare Dashboard

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Once onboarded for SSO, all company user logins to the Cloudflare dashboard redirect to the customer’s identity provider. Once all required authentication checks complete successfully, the user is seamlessly redirected Continue Reading

A Tour Inside Cloudflare’s G9 Servers

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Exploded picture of the G9 server’s main components. 4 sleds represent 4 nodes, each with 2 24-core Intel CPUs Each high-level hardware component has gone through their own upgrade as Continue Reading

Mapping Factorio with Leaflet

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! The following is a guest post by Jacob Hands, Creator of FactorioMaps.com. He is building a community site for the game Factorio centered around sharing user creations. Factorio is a Continue Reading

Leave your VPN and cURL secure APIs with Cloudflare Access

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! 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 Continue Reading

Announcing Firewall Rules

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Threat landscapes change every second. As attackers evolve, becoming more dynamic and devious, vulnerabilities materialize faster than engineers can patch their applications. Part of Cloudflare’s mission is to keep you Continue Reading

Ulaanbaatar, Mongolia

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Whenever you get into a conversation about exotic travel or ponder visiting the four corners of the globe, inevitably you end up discussing Ulaanbaatar in Mongolia. Travelers want to experience Continue Reading

Cloudflare Access: Sharing our single-sign on plugin for Atlassian

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Here at Cloudflare, we rely on a set of productivity tools built by Atlassian, including Jira and Confluence. We secure them with Cloudflare Access. In the past, when our team Continue Reading

Custom Load Balancing With Cloudflare Workers

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! The following is a guest post by Jayaprabhakar Kadarkarai, Developer of Codiva.io, an Online IDE used by computer science students across the world. He works full stack to deliver low Continue Reading

#BetterInternet: Join the Movement

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! When it comes to overall awareness of Cloudflare, it seems most folks fall into one of three camps: 1) those who don’t know much about Cloudflare at all, 2) those Continue Reading

WebAssembly on Cloudflare Workers

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! We just announced ten major new products and initiatives over Crypto Week and Birthday Week, but our work is never finished. We’re continuously upgrading our existing products with new functionality. Continue Reading

Statement concerning events at Glowbeam Technologies

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! All of Cloudflare’s staff were shocked at the events depicted in NCIS Season 16 Episode 1 where incorrect use of random numbers for encryption resulted in the insertion of multiple Continue Reading

Introducing Workers KV

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! In 1864 British computer pioneer Charles Babbage described the first key-value store. It was meant to be part of his Analytical Engine. Sadly, the Analytical Engine, which would have been Continue Reading

Building With Workers KV, a Fast Distributed Key-Value Store

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! In this example your authentication system will store a token when a user logs in. I’m using curl, but the backend code for your system is more likely to use Continue Reading

Get a head start with QUIC

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Today Cloudflare opened the door on our beta deployment of QUIC with the announcement of our test site: cloudflare-quic.com. It supports the latest draft of the IETF Working Group’s draft Continue Reading

Introducing Cloudflare Registrar: Domain Registration You Can Love

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! “I love my domain registrar.” Has anyone ever said this? From before Cloudflare even launched in September 2010, our early beta customers were literally begging us: “Will you please launch Continue Reading

Encrypt it or lose it: how encrypted SNI works

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Today we announced support for encrypted SNI, an extension to the TLS 1.3 protocol that improves privacy of Internet users by preventing on-path observers, including ISPs, coffee shop owners and Continue Reading

Encrypting SNI: Fixing One of the Core Internet Bugs

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Cloudflare launched on September 27, 2010. Since then, we’ve considered September 27th our birthday. This Thursday we’ll be turning 8 years old. Ever since our first birthday, we’ve used the Continue Reading

Expanding DNSSEC Adoption

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Cloudflare first started talking about DNSSEC in 2014 and at the time, Nick Sullivan wrote: “DNSSEC is a valuable tool for improving the trust and integrity of DNS, the backbone Continue Reading

Introducing the Cloudflare Onion Service

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! When: a cold San Francisco summer afternoon Where: Room 305, Cloudflare Who: 2 from Cloudflare + 9 from the Tor Project What could go wrong? Bit of Background Two years Continue Reading

RPKI and BGP: our path to securing Internet Routing

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! This article will talk about our approach to network security using technologies like RPKI to sign Internet routes and protect our users and customers from route hijacks and misconfigurations. We Continue Reading

End-to-End Integrity with IPFS

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! This post describes how to use Cloudflare’s IPFS gateway to set up a website which is end-to-end secure, while maintaining the performance and reliability benefits of being served from Cloudflare’s Continue Reading

Cache API for Cloudflare Workers is now in Beta!

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! In October of last year we announced the launch of Cloudflare Workers. Workers allows you to run JavaScript from 150+ of Cloudflare’s data centers. This means that from the moment Continue Reading

Deploy Workers using Terraform

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Today we’re excited to announce that Cloudflare Workers are now supported in the Cloudflare Terraform Provider. Terraform is a fantastic tool for configuring your infrastructure. Traditionally if you wanted to Continue Reading

Norfolk and Richmond, Virginia: Cloudflare’s 152nd and 153rd cities

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Virginia has a very important place in Internet history, as well as the history of Cloudflare’s network. Northern Virginia, in the area around Ashburn VA, has for a long time Continue Reading

Build and Deploy Functions to Cloudflare’s 152+ Data Centers with Serverless

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! We’re very excited to announce that Cloudflare Workers are now integrated into the Serverless framework as a serverless cloud provider! Serverless’ open source framework has become a must-have for many Continue Reading

EU Copyright Vote: A Critical Juncture for the Open Internet

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Back in June, we blogged about the draft EU copyright proposal which is currently making its way through the legislative process in Brussels.  We outlined how under one of the Continue Reading

Fixing an old hack – why we are bumping the IPv6 MTU

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Back in 2015 we deployed ECMP routing – Equal Cost Multi Path – within our datacenters. This technology allowed us to spread traffic heading to a single IP address across Continue Reading

Bob Ross, Lorem Ipsum, Heroku and Cloudflare Workers

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers!Source: Wikipedia Of course, the web being the web that we all love, there are also endless parodies of Lorem Ipsum. You can generate Hodor Ipsum, Cat Ipsum and Hipster Ipsum. Continue Reading

Introducing Real World Serverless – Practical advice on how to use Cloudflare Workers

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers!Photo by Real World Serverless – Singapore Photo by Real World Serverless – Melbourne Photo by Kieren Andrews / Unsplash October 17th, 2018, 6:30pm-8:30pmLocation: Downtown Melbourne View Event Details & Register Continue Reading

Welcome, WP Engine!

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! We’ve had the tremendous pleasure of working with WP Engine for nearly 5 years, starting when both companies employed less than 100 people in total. From the beginning, we noticed Continue Reading

Protection from Struts Remote Code Execution Vulnerability (S2-057)

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! On August 22 a new vulnerability in the Apache Struts framework was announced. It allows unauthenticated attackers to perform Remote Code Execution (RCE) on vulnerable hosts. As security researcher Man Continue Reading

Porting Our Software to ARM64

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! As we enable more ARM64[1] machines in our network, I want to give some technical insight into the process we went through to reach software parity in our multi-architecture environment. Continue Reading

Identifying and alerting on data loss using Cloudflare Workers

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Photo by Markus Spiske / Unsplash You hear about data breaches almost every day in the news these days. New regulations, such as GDPR, require companies to disclose data breaches Continue Reading

Building a Diverse Business Development Team in EMEA

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Cloudflare’s mission is to help build a better Internet, and we are also serious about building a diverse workforce where everyone can be themselves, regardless of their gender, sexual orientation, Continue Reading

Using Edge-Side Includes with Workers for High Availability

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Last week, we wrote about implementing ESI with Cloudflare Workers. This is a guest post by Lukas Reider on how to use ESI not only for better performance, but to Continue Reading

Introducing ebpf_exporter

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! This is an adapted transcript of a talk I gave at Promcon 2018. You can find slides with additional information on our Prometheus deployment and presenter notes here. There’s also Continue Reading

Refresh Stale DNS Records on 1.1.1.1

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! You can now refresh 1.1.1.1’s DNS cache for domain names by using the purge cache tool. This is useful for domain owners who have just updated their DNS records and Continue Reading

Internet Native Applications

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! I grew up with DOS and Windows 3.1. I remember applications being fast – instant feedback or close to it. Today, native applications like Outlook or Apple Mail still feel Continue Reading

Integrating redirection.io with Cloudflare Workers

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! The following is a guest post by Xavier Lacot, a developer at redirection.io and founder at JoliCode. He works primarily on Web and mobile projects as a consultant, trainer and Continue Reading

How Cloudflare protects customers from cache poisoning

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! A few days ago, Cloudflare — along with the rest of the world — learned of a “practical” cache poisoning attack. In this post I’ll walk through the attack and Continue Reading

Edge-Side-Includes with Cloudflare Workers

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! At Cloudflare we’re accelerating web assets in a number of different ways. Part of this is caching, by storing the response given by the origin server directly within our 151+ Continue Reading

African traffic growth and predictions for the future

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Looking back at our historical data, we realized how much the Internet and Cloudflare grew. With more than 150 datacenters, 10 percent of web-based applications, customers everywhere around the world, Continue Reading

Three new ways teams are using Cloudflare Access

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Since leaving beta three weeks ago, Cloudflare Access has become our fastest-growing subscription service. Every day, more teams are using Access to leave their VPN behind and connect to applications Continue Reading

Enable Private DNS with 1.1.1.1 on Android 9 Pie

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Recently, Google officially launched Android 9 Pie, which includes a slew of new features around digital well-being, security, and privacy. If you’ve poked around the network settings on your phone Continue Reading

Optimising Caching on Pwned Passwords (with Workers)

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! In February, Troy Hunt unveiled Pwned Passwords v2. Containing over half a billion real world leaked passwords, this database provides a vital tool for correcting the course of how the Continue Reading

Use Cloudflare Stream to build secure, reliable video apps

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! It’s our pleasure to announce the general availability of Cloudflare Stream. Cloudflare Stream is the best way for any founder or developer to deliver an extraordinary video experience to their Continue Reading

Additional Record Types Available with Cloudflare DNS

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Photo by Mink Mingle / Unsplash Cloudflare recently updated the authoritative DNS service to support nine new record types. Since these records are less commonly used than what we previously Continue Reading

Growing the Cloudflare Apps Ecosystem

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Starting today we are announcing the availability of two key pilot programs: Cloudflare Apps with Workers Cloudflare Workers Service Providers Why now? Over the course of past few months we’ve Continue Reading

How we scaled nginx and saved the world 54 years every day

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! The @Cloudflare team just pushed a change that improves our network’s performance significantly, especially for particularly slow outlier requests. How much faster? We estimate we’re saving the Internet ~54 years Continue Reading

Minecraft API with Workers + CoffeeScript

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! The following is a guest post by Ashcon Partovi, a computer science and business undergraduate at the University of British Columbia in Vancouver, Canada. He’s the founder of a popular Continue Reading

Q2 FY 18 Product Releases, for a better Internet “end-to-end”

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Photo by Liu Zai Hou / Unsplash In Q2, Cloudflare released several products which enable a better Internet “end-to-end” — from the mobile client to host infrastructure. Now, anyone from Continue Reading

Going Proactive on Security: Driving Encryption Adoption Intelligently

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! It’s no secret that Cloudflare operates at a huge scale. Cloudflare provides security and performance to over 9 million websites all around the world, from small businesses and WordPress blogs Continue Reading

1.1.1.1 for Your Organization

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! A few months ago, we announced the world’s fastest, privacy-first, recursive DNS resolver, 1.1.1.1. It’s been exciting watching the community reaction to this project, and to be in a position Continue Reading

Cloudflare Access: Now teams of any size can turn off their VPN

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Using a VPN is painful. Logging-in interrupts your workflow. You have to remember a separate set of credentials, which your administrator has to manage. The VPN slows you down when Continue Reading

I Wanna Go Fast – Load Balancing Dynamic Steering

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Earlier this month we released Dynamic Steering for Load Balancing which allows you to have your Cloudflare load balancer direct traffic to the fastest pool for a given Cloudflare region Continue Reading

Securing U.S. Democracy: Athenian Project Update

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Last December, Cloudflare announced the Athenian Project to help protect U.S. state and local election websites from cyber attack. Since then, the need to protect our electoral systems has become Continue Reading

Proxying traffic to Report URI with Cloudflare Workers

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! The following is a guest post by Scott Helme, a Security Researcher, international speaker, and blogger. He’s also the founder of the popular securityheaders.com and report-uri.com, free tools to help Continue Reading

DNS-Over-TLS Built-In & Enforced – 1.1.1.1 and the GL.iNet GL-AR750S

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! GL.iNet GL-AR750S in black, same form-factor as the prior white GL.iNet GL-AR750. Credit card for comparison. Back in April, I wrote about how it was possible to modify a router Continue Reading

Introducing Proudflare, Cloudflare’s LGBTQIA+ Group

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! With Pride month now in our collective rearview mirror for 2018, I wanted to share what some of us have been up to at Cloudflare. We’re so proud that, in Continue Reading

How To Minikube + Cloudflare

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! The following is a guest blog post by Nathan Franzen, Software Engineer at StackPointCloud. StackPointCloud is the creator of Stackpoint.io, the leading multi-cloud management platform for cloud native workloads. They Continue Reading

How to drop 10 million packets per second

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Internally our DDoS mitigation team is sometimes called “the packet droppers”. When other teams build exciting products to do smart things with the traffic that passes through our network, we Continue Reading

Debugging Serverless Apps

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! The Workers team have already done an amazing job of creating a functional, familiar edit and debug tooling experience in the Workers IDE. It’s Chrome Developer Tools fully integrated to Continue Reading

Too Old To Rocket Load, Too Young To Die

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Rocket Loader is in the news again. One of Cloudflare’s earliest web performance products has been re-engineered for contemporary browsers and Web standards. No longer a beta product, Rocket Loader Continue Reading

Serverless Performance: Cloudflare Workers, Lambda and Lambda@Edge

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! A few months ago we released a new way for people to run serverless Javascript called Cloudflare Workers. We believe Workers is the fastest way to execute serverless functions. If Continue Reading

Delivering a Serverless API in 10 minutes using Workers

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! In preparation for Chrome’s Not Secure flag, which will update the indicator to show Not Secure when a site is not accessed over https, we wanted people to be able Continue Reading

Cryptocurrency API Gateway using Typescript+Workers

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! If you followed part one, I have an environment setup where I can write Typescript with tests and deploy to the Cloudflare Edge with npm run upload. For this post, Continue Reading

T-25 days until Chrome starts flagging HTTP sites as “Not Secure”

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Less than one month from today, on July 23, Google will start prominently labeling any site loaded in Chrome without HTTPS as “Not Secure“. Check my site! Checking Domain already Continue Reading

Bootstrapping a Typescript Worker

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Cloudflare Workers allows you to quickly deploy Javascript code to our 160+ data centers around the world and execute very close to your end-user. The edit/compile/debug story is already pretty Continue Reading

Copyright? Copywrong!

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! The drafting of the new EU Copyright Directive was never going to be an easy task. As has been seen over the years, policy discussions involving digital service providers and Continue Reading

Using Webpack to bundle your Workers modules

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! A brief introduction to bundling your Service Worker scripts. Photo by Joyce Romero / Unsplash // The simplest Service Worker: A passthrough script addEventListener(‘fetch’, event => { event.respondWith(fetch(event.request)) }) The Continue Reading

Building a serverless Slack bot using Cloudflare Workers

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Our Workers platform can be used for a ton of useful purposes: for A/B (multivariate) testing, storage bucket authentication, coalescing responses from multiple APIs, and more. But Workers can also Continue Reading

Argo Tunnels: Spread the Load

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! We recently announced Argo Tunnel which allows you to deploy your applications anywhere, even if your webserver is sitting behind a NAT or firewall. Now, with support for load balancing, Continue Reading

Test New Features and Iterate Quickly with Cloudflare Workers

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Photo by NESA by Makers / Unsplash At Cloudflare, we believe that getting new products and features into the hands of customers as soon as possible is the best way Continue Reading

Cloudflare Workers Recipe Exchange

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Photo of Indian Spices, by Joe mon bkk. Wikimedia Commons, CC BY-SA 4.0. Share your Cloudflare Workers recipes with the Cloudflare Community. Developers in Cloudflare’s community each bring a unique Continue Reading

Introducing DNS Resolver for Tor

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! In case you haven’t heard yet, Cloudflare launched a privacy-first DNS resolver service on April 1st. It was no joke! The service, which was our first consumer-focused service, supports emerging Continue Reading

We have lift off – Rocket Loader GA is mobile!

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Today we’re excited to announce the official GA of Rocket Loader, our JavaScript optimisation feature that will prioritise getting your content in front of your visitors faster than ever before Continue Reading

Introducing: The Cloudflare All-Stars Fantasy League

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Tweet #CloudflareAllStars Baseball season is well underway, and to celebrate, we’re excited to introduce the Cloudflare All-Stars Fantasy League: a group of fictitious sports teams that revolve around some of Continue Reading

Rate Limiting: Delivering more rules, and greater control

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! With more and more platforms taking the necessary precautions against DDoS attacks like integrating DDoS mitigation services and increasing bandwidth at weak points, Layer 3 and 4 attacks are just Continue Reading

Why I’m Joining Cloudflare

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! I love working as a Chief Security Officer because every day centers around building something that makes people safer. Back in 2002, as I considered leaving my role as a Continue Reading

You get TLS 1.3! You get TLS 1.3! Everyone gets TLS 1.3!

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! It’s no secret that Cloudflare has been a big proponent of TLS 1.3, the newest edition of the TLS protocol that improves both speed and security, since we have made Continue Reading

Tracing System CPU on Debian Stretch

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! This is a heavily truncated version of an internal blog post from August 2017. For more recent updates on Kafka, check out another blog post on compression, where we optimized Continue Reading

The Rise of Edge Compute: The Video

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! At the end of March, Kenton Varda, tech lead and architect for Cloudflare Workers, traveled to London and led a talk about the Rise of Edge Compute where he laid Continue Reading

Custom Page Selection for Cloudflare Apps

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! In July 2016, Cloudflare integrated with Eager – an apps platform. During this integration, several decisions were made to ensure an optimal experience installing apps. We wanted to make sure Continue Reading

Sharing more Details, not more Data: Our new Privacy Policy and Data Protection Plans

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! After an exhilarating first month as Cloudflare’s first Data Protection Officer, I’m excited to announce that today we are launching a new Privacy Policy. Our new policy explains the kind Continue Reading

Expanding Multi-User Access on dash.cloudflare.com

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! One of the most common feature requests we get is to allow customers to share account access. This has been supported at our Enterprise level of service, but is now Continue Reading

Getting started with Terraform and Cloudflare (Part 2 of 2)

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! In Part 1 of Getting Started with Terraform, we explained how Terraform lets developers store Cloudflare configuration in their own source code repository, institute change management processes that include code Continue Reading

A Carbon Neutral North America

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Photo by Karsten Würth (@inf1783) / Unsplash Cloudflare’s mission is to help build a better Internet. While working toward our goals, we want to make sure our processes are conducted Continue Reading

Keeping Drupal sites safe with Cloudflare’s WAF

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Cloudflare’s team of security analysts monitor for upcoming threats and vulnerabilities and where possible put protection in place for upcoming threats before they compromise our customers. This post examines how Continue Reading

1 year and 3 months working at Cloudflare: How is it going so far?

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! This post is inspired by a very good blog post from one of my colleague in the US, which I really appreciated as I was a newcomer to the company. Continue Reading

mmproxy – Creative Linux routing to preserve client IP addresses in L7 proxies

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! In previous blog post we discussed how we use the TPROXY iptables module to power Cloudflare Spectrum. With TPROXY we solved a major technical issue on the server side, and Continue Reading

NEON is the new black: fast JPEG optimization on ARM server

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! As engineers at Cloudflare quickly adapt our software stack to run on ARM, a few parts of our software stack have not been performing as well on ARM processors as Continue Reading

Introducing Spectrum: Extending Cloudflare To 65,533 More Ports

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Today we are introducing Spectrum, which brings Cloudflare’s security and acceleration to the whole spectrum of TCP ports and protocols for our Enterprise customers. It’s DDoS protection for any box, Continue Reading

Privacy-Protecting Portable Router: Adding DNS-Over-TLS support to OpenWRT (LEDE) with Unbound

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! If you want to skip ahead to instructions, scroll to the next section. But I, like a TLS handshake, am very verbose so please enjoy this opener. Imagine this scenario Continue Reading

Fixing reachability to 1.1.1.1, GLOBALLY!

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Recently we announced our fast, privacy-centric DNS resolver 1.1.1.1, supported by our global network. As you can see 1.1.1.1 is very easy to remember, which is both a blessing and Continue Reading

Cloudflare Argo Tunnel with Rust+Raspberry Pi

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Yesterday Cloudflare launched Argo Tunnel. In the words of the product team: Argo Tunnel exposes applications running on your local web server, on any network with an Internet connection, without Continue Reading

Argo Tunnel: A Private Link to the Public Internet

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Photo from Wikimedia Commons Today we’re introducing Argo Tunnel, a private connection between your web server and Cloudflare. Tunnel makes it so that only traffic that routes through Cloudflare can Continue Reading

Extend your security view from the data center to the edge

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! How great would it be to have a dashboard with a holistic view of threats, malicious server activity, vulnerabilities, sensitive data access levels and a daily scan of resources across Continue Reading

Announcing 1.1.1.1: the fastest, privacy-first consumer DNS service

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Cloudflare’s mission is to help build a better Internet. We’re excited today to take another step toward that mission with the launch of 1.1.1.1 — the Internet’s fastest, privacy-first consumer Continue Reading

Introducing DNS Resolver, 1.1.1.1 (not a joke)

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Cloudflare’s mission is to help build a better Internet and today we are releasing our DNS resolver, 1.1.1.1 – a recursive DNS service. With this offering, we’re fixing the foundation Continue Reading

Welcome, Luxembourg City and Chișinău! Cloudflare Global Network Spans 151 Cities

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Hot off the presses! Cloudflare just completed provisioning our Luxembourg City and Chișinău data centers, expanding our Europe network to 41 cities, and our global network to 151 cities across Continue Reading

Three more US data centers! Jacksonville, Memphis and Tallahassee

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Good things come in threes! Following the launch of three data centers each in the Baltics (Riga, Tallinn, Vilnius) and in the Canadian Prairies (Calgary, Saskatoon, Winnipeg), we’re thrilled to Continue Reading

Cloudflare Arrives in the Canadian Prairies! Welcome Calgary, Saskatoon and Winnipeg

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! We just turned up Calgary, Saskatoon and Winnipeg – Cloudflare’s 143rd, 144th, and 145th data centers. This brings our Canadian presence to six cities, joining Toronto, Montreal and Vancouver. I Continue Reading

2,600 meters closer to the stars: Cloudflare Data Center #149 in Bogotá, Colombia

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! At 2625 meters (8612 feet) above sea level, Bogotá (Colombia) is one of the four highest capital cities in the world. Now, it is also home to Cloudflare’s 149th data Continue Reading

Riga, Tallinn and Vilnius: Launching three new European Cloudflare data centers

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Cloudflare announces the turn up of our newest data centers located in Riga (Latvia), Tallinn (Estonia) and Vilnius (Lithuania). They represent the 140th, 141st and 142nd cities across our growing Continue Reading

eBPF, Sockets, Hop Distance and manually writing eBPF assembly

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! A friend gave me an interesting task: extract IP TTL values from TCP connections established by a userspace program. This seemingly simple task quickly exploded into an epic Linux system Continue Reading

Cloudflare is adding Drupal WAF Rule to Mitigate Critical Drupal Exploit

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Drupal has recently announced an update to fix a critical remote code execution exploit (SA-CORE-2018-002/CVE-2018-7600). In response we have just pushed out a rule to block requests matching these exploit Continue Reading

A Solution to Compression Oracles on the Web

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! CC 3.0 by Jean-Jacques MILAN This is a guest post by Blake Loring, a PhD student at Royal Holloway, University of London. Blake worked at Cloudflare as an intern in Continue Reading

London & Barcelona developers, we want to meet you this week

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Are you based in London or Barcelona? Drop by the Cloudflare London office to meet Kenton Varda, lead architect of Cloudflare Workers, front end developers Marta Bondyra and David Sancho Continue Reading

A tour through Merkle Town, Cloudflare’s Certificate Transparency dashboard

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! For a quick primer on Certificate Transparency, please read my colleague Nick Sullivan’s post from earlier today. The discussion below expands on that post and details how Cloudflare monitors the Continue Reading

Introducing Certificate Transparency and Nimbus

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Certificate Transparency (CT) is an ambitious project to help improve security online by bringing accountability to the system that protects HTTPS. Cloudflare is announcing support for this project by introducing Continue Reading

Edinburgh: 139th Cloudflare city

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Our newest data center in Edinburgh expands our current total to 139 cities globally with a Cloudflare deployment. It also brings our UK total to 3 cities, after London and Continue Reading

Cebu City, Philippines: Cloudflare’s 138th Data Center

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Cebu City, the second most populous metro area, but oldest city in the Philippines is the home of Cloudflare’s newest Data Center. Located centrally in the Philippines, Cebu has had Continue Reading

Data-driven development with Cloudflare Mobile SDK

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! If your app loads critical resources over the network, it’s relying on your user’s mobile network connection to deliver an engaging experience. Network errors occur in 3 to 12% of Continue Reading

Cloudflare Global Network Spans 137 Cities: Launching Durban and Port Louis Data Centers

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Our newest data centers in Durban (South Africa) and Port Louis (Mauritius) expand the Cloudflare network to 137 cities globally. We are delighted to reach this special milestone, and even Continue Reading

Tel Aviv, Israel: Cloudflare’s 135th Data Center Now Live!

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Our newest data center is now live in Tel Aviv, Israel! This expands our global network even further to span 135 cities across 68 countries. High-Tech in Israel Although Israel Continue Reading

Mexico City, Mexico: Cloudflare Data Center #134

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! ¡Mexicanos! ¡Viva México! ¡Viva México! ¡Viva México! No, no es el 16 de septiembre (Día de la Independencia de México). Sin embargo aquí en Cloudflare celebramos la introducción de nuestro Continue Reading

Five new Cloudflare data centers across the United States

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! When Cloudflare launched, three of the original five cities in our network – Chicago, Ashburn and San Jose – were located in the United States. Since then, we have grown Continue Reading

Baghdad, Iraq: Cloudflare’s 128th Data Center

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Cloudflare’s newest data center is located in Baghdad, Iraq, in the region often known as the cradle of civilization. This expands our growing Middle East presence, while serving as our Continue Reading

Everyone can now run JavaScript on Cloudflare with Workers

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Exactly one year ago today, Cloudflare gave me a mission: Make it so people can run code on Cloudflare’s edge. At the time, we didn’t yet know what that would Continue Reading

Deprecating TLS 1.0 and 1.1 on api.cloudflare.com

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! On June 4, Cloudflare will be dropping support for TLS 1.0 and 1.1 on api.cloudflare.com. Additionally, the dashboard will be moved from www.cloudflare.com/a to dash.cloudflare.com and will require a browser Continue Reading

Macau: Cloudflare Data Center 127

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Cloudflare’s 127th data center is now live in Macau, helping make over 7 million Internet facing applications safer and faster. This is our 44th data center in Asia. Cloudflare 將在澳門啟用全球第127個數據中心, Continue Reading

Riyadh, Saudi Arabia: Cloudflare Data Center #126

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! We are very excited to announce Cloudflare’s 126th data center in Riyadh, Saudi Arabia (only hours after launching in Reykjavík!). This joins our existing Middle East facilities to provide even Continue Reading

Reykjavík, Cloudflare’s northernmost location

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Iceland is a small country in Northern Europe, a land of active volcanoes and boiling hot geysers. The geology and climate creates unique conditions for running compute power. With an Continue Reading

The real cause of large DDoS – IP Spoofing

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! A week ago we published a story about new amplification attacks using memcached protocol on UDP port 11211. A few things happened since then: Github announced it was a target Continue Reading

Istanbul (not Constantinople): Cloudflare’s 124th Data Center

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Cloudflare is excited to turn up our newest data center in Istanbul, Turkey. This is our 124th data center globally (and 62nd country), and it is throwing a curveball in Continue Reading

Starting as an Engineering Manager

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! I joined Cloudflare last week as an Engineering Manager, having previously spent 4 years working as the head of the software engineering community in the UK Government’s Digital Service (GDS). Continue Reading

Using Cloudflare Workers to identify pwned passwords

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Last week Troy Hunt launched his Pwned Password v2 service which has an API handled and cached by Cloudflare using a clever anonymity scheme. The following simple code can check Continue Reading

How Developers got Password Security so Wrong

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! 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 Continue Reading

#PressForProgress – International Women’s Day 2018 | A Cloudflare & Branch Event

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Almost a year ago, I began my journey in the tech industry at a growing company called Cloudflare. I’m a 30-something paralegal and although I didn’t know how to write Continue Reading

Using Go as a scripting language in Linux

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! At Cloudflare we like Go. We use it in many in-house software projects as well as parts of bigger pipeline systems. But can we take Go to the next level Continue Reading

ជំរាបសួរ! – Phnom Penh: Cloudflare’s 122nd Data Center

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Cloudflare is excited to turn up our newest data center in Phnom Penh, Cambodia, making over 7 million Internet properties even faster. This is our 122nd data center globally, and Continue Reading

Keeping our users safe

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! To everyone in Cloudflare, account security is one of our most important tasks. We recognize that to every customer on our platform, we are critical infrastructure. We also know that Continue Reading

Cloudflare ♥ Open Source: upgrade to Pro Plan on the house

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Happy Valentine’s Day, Internet! There’s a special place in our heart for all the open source projects that support the Internet and improve the lives of everyone in the developer Continue Reading

Bye Bye Blackbird

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Courtesty of PublicDomainPictures.net As we have talked about repeatedly in this blog, we at Cloudflare are not fans of the behavior of patent trolls. They prey upon innovative companies using Continue Reading

Marhaba Beirut! Cloudflare’s 121st location – مرحبا بيروت! موقع “كلاودفلار” ال ١٢١

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Lebanon is a historic country, home to two cities among the oldest in the world. There’s a vast mix of influences from the East and West. It’s also the smallest Continue Reading

It’s Hard To Change The Keys To The Internet And It Involves Destroying HSM’s

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Photo by Niko Soikkeli / Unsplash The root of the DNS tree has been using DNSSEC to protect the zone content since 2010. DNSSEC is simply a mechanism to provide Continue Reading

Coming soon to a university near you

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Attention software engineering students: Cloudflare is coming to the University of Illinois at Urbana-Champaign and the University of Wisconsin–Madison, and we want to meet you! We will be attending UW–Madison’s Continue Reading

How we made our page-load optimisations even faster

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! In 2017 we made two of our web optimisation products – Mirage and Rocket Loader – even faster! Combined, these products speed up around 1.2 billion web-pages a week. The Continue Reading

Cloudflare Workers is now on Open Beta

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Cloudflare Workers Beta is now open! Cloudflare Workers lets you run JavaScript on Cloudflare’s edge, deploying globally to over 120+ data centers around the world in less than 30 seconds. Continue Reading

Writing complex macros in Rust: Reverse Polish Notation

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! (This is a crosspost of a tutorial originally published on my personal blog) Among other interesting features, Rust has a powerful macro system. Unfortunately, even after reading The Book and Continue Reading

SEO Performance in 2018 Using Cloudflare

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! For some businesses SEO is a bad word, and for good reason. Google and other search engines keep their algorithms a well-guarded secret making SEO implementation not unlike playing a Continue Reading

Lessons learned from adapting Site Search 360 for Cloudflare Apps

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! This is a guest post by David Urbansky, CEO and Co-Founder of SEMKNOX and Site Search 360. David is a search enthusiast having built natural language search experiences for e-commerce Continue Reading

Large drop in traffic from the Democratic Republic of Congo

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! It is not uncommon for countries around the world to interrupt Internet access for political reasons or because of social unrest. We’ve seen this many times in the past (e.g. Continue Reading

Web Cache Deception Attack revisited

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! In April, we wrote about Web Cache Deception attacks, and how our customers can avoid them using origin configuration. Read that blog post to learn about how to configure your Continue Reading

Deprecating SPDY

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Democratizing the Internet and making new features available to all Cloudflare customers is a core part of what we do. We’re proud to be early adopters and have a long Continue Reading

However improbable: The story of a processor bug

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Processor problems have been in the news lately, due to the Meltdown and Spectre vulnerabilities. But generally, engineers writing software assume that computer hardware operates in a reliable, well-understood fashion, Continue Reading

SYN packet handling in the wild

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Here at Cloudflare, we have a lot of experience of operating servers on the wild Internet. But we are always improving our mastery of this black art. On this very Continue Reading

Welcome Salt Lake City and Get Ready for a Massive Expansion

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! We just turned up Salt Lake City, Utah — Cloudflare’s 120th data center. Salt Lake holds a special place in Cloudflare’s history. I grew up in the region and still Continue Reading

An Explanation of the Meltdown/Spectre Bugs for a Non-Technical Audience

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Last week the news of two significant computer bugs was announced. They’ve been dubbed Meltdown and Spectre. These bugs take advantage of very technical systems that modern CPUs have implemented Continue Reading

How “expensive” is crypto anyway?

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! I wouldn’t be surprised if the title of this post attracts some Bitcoin aficionados, but if you are such, I want to disappoint you. For me crypto means cryptography, not Continue Reading

Why TLS 1.3 isn’t in browsers yet

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Upgrading a security protocol in an ecosystem as complex as the Internet is difficult. You need to update clients and servers and make sure everything in between continues to work Continue Reading

The History of Stock Quotes

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! In honor of all the fervor around Bitcoin, we thought it would be fun to revisit the role finance has had in the history of technology even before the Internet Continue Reading

Concise (Post-Christmas) Cryptography Challenges

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! It’s the day after Christmas; or, depending on your geography, Boxing Day. With the festivities over, you may still find yourself stuck at home and somewhat bored. Either way; here Continue Reading

Simple Cyber Security Tips (for your Parents)

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Today, December 25th, Cloudflare offices around the world are taking a break. From San Francisco to London and Singapore; engineers have retreated home for the holidays (albeit with those engineers Continue Reading

TLS 1.3 is going to save us all, and other reasons why IoT is still insecure

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! As I’m writing this, four DDoS attacks are ongoing and being automatically mitigated by Gatebot. Cloudflare’s job is to get attacked. Our network gets attacked constantly. Around the fall of Continue Reading

Technical reading from the Cloudflare blog for the holidays

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! During 2017 Cloudflare published 172 blog posts (including this one). If you need a distraction from the holiday festivities at this time of year here are some highlights from the Continue Reading

The Athenian Project: Helping Protect Elections

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! From cyberattacks on election infrastructure, to attempted hacking of voting machines, to attacks on campaign websites, the last few years have brought us unprecedented attempts to use online vulnerabilities to Continue Reading

There’s Always Cache in the Banana Stand

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! We’re happy to announce that we now support all HTTP Cache-Control response directives. This puts powerful control in the hands of you, the people running origin servers around the world. Continue Reading

Why Some Phishing Emails Are Mysteriously Disappearing

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Phishing is the absolute worst. Unfortunately, sometimes phishing campaigns use Cloudflare for the very convenient, free DNS. To be clear –– there’s a difference between a compromised server being leveraged Continue Reading

The Curious Case of Caching CSRF Tokens

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! It is now commonly accepted as fact that web performance is critical for business. Slower sites can affect conversion rates on e-commerce stores, they can affect your sign-up rate on Continue Reading

McAllen, Texas: Cloudflare opens 119th Data Center just north of the Mexico border

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Five key facts to know about McAllen, Texas McAllen, Texas is on the southern tip of the Rio Grande Valley The city is named after John McAllen, who provided land Continue Reading

The end of the road for Server: cloudflare-nginx

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Six years ago when I joined Cloudflare the company had a capital F, about 20 employees, and a software stack that was mostly NGINX, PHP and PowerDNS (there was even Continue Reading

On the Leading Edge – Cloudflare named a leader in The Forrester Wave: DDoS Mitigation Solutions

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Cloudflare has been recognized as a leader in the “Forrester WaveTM: DDoS Mitigation Solutions, Q4 2017.” The DDoS landscape continues to evolve. The increase in sophistication, frequency, and range of Continue Reading

CAA of the Wild: Supporting a New Standard

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! One thing we take pride in at Cloudflare is embracing new protocols and standards that help make the Internet faster and safer. Sometimes this means that we’ll launch support for Continue Reading

Make SSL boring again

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! It may (or may not!) come as surprise, but a few months ago we migrated Cloudflare’s edge SSL connection termination stack to use BoringSSL: Google’s crypto and SSL implementation that Continue Reading

Introducing the Cloudflare Warp Ingress Controller for Kubernetes

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! It’s ironic that the one thing most programmers would really rather not have to spend time dealing with is… a computer. When you write code it’s written in your head, Continue Reading

The New DDoS Landscape

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! News outlets and blogs will frequently compare DDoS attacks by the volume of traffic that a victim receives. Surely this makes some sense, right? The greater the volume of traffic Continue Reading

Want to try Warp? We just enabled the beta for you

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Tomorrow is Thanksgiving in the United States. It’s a holiday for getting together with family characterized by turkey dinner and whatever it is that happens in American football. While celebrating Continue Reading

Releasing AddThis on Cloudflare Apps: Making Disciplined Product Design Decisions

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! This is a guest post by Emily Schwartz, Product Manager for the AddThis team at Oracle. With a background in digital media that has spanned across NPR, WaPo Labs, Trove, Continue Reading

7 Cloudflare Apps Which Increase User Engagement on Your Site

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Cloudflare Apps now lists 95 apps from apps which grow email lists to apps which acquire new customers to apps which help site owners make more money. The great thing Continue Reading

Thwarting the Tactics of the Equifax Attackers

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! We are now 3 months on from one of the biggest, most significant data breaches in history, but has it redefined people’s awareness on security? The answer to that is Continue Reading

Go, don’t collect my garbage

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Not long ago I needed to benchmark the performance of Golang on a many-core machine. I took several of the benchmarks that are bundled with the Go source code, copied Continue Reading

Privacy Pass – “The Math”

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! This is a guest post by Alex Davidson, a PhD student in Cryptography at Royal Holloway, University of London, who is part of the team that developed Privacy Pass. Alex Continue Reading

Cloudflare supports Privacy Pass

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Enabling anonymous access to the web with privacy-preserving cryptography Cloudflare supports Privacy Pass, a recently-announced privacy-preserving protocol developed in collaboration with researchers from Royal Holloway and the University of Waterloo. Continue Reading

On the dangers of Intel’s frequency scaling

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! While I was writing the post comparing the new Qualcomm server chip, Centriq, to our current stock of Intel Skylake-based Xeons, I noticed a disturbing phenomena. When benchmarking OpenSSL 1.1.1dev, Continue Reading

Randomness 101: LavaRand in Production

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! Lava lamps in the Cloudflare lobby Courtesy of @mahtin As some of you may know, there’s a wall of lava lamps in the lobby of our San Francisco office that Continue Reading

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