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

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

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

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

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

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

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

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

2018 and the Internet: our predictions

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! At the end of 2016, I wrote a blog post with seven predictions for 2017. Let’s start by reviewing how I did. Public Domain image by Michael Sharpe I’ll score 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

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

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 FCC Wants to Kill Net Neutrality – Use Battle for the Net on Cloudflare Apps to Fight Back

Cloudflare Railgun is available when using Cloud Server Webuzo, Cloud Web Apps. Contact us to find out our latest offers! TL;DR – Net neutrality is under attack. There’s an app on Cloudflare Apps that empowers site owners to host a popup on their sites, encouraging users to contact their congresspeople 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

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