08/31/2015
Three years ago we launched Railgun, CloudFlare's origin network optimizer. Railgun allows us to cache the uncacheable to accelerate the connection between CloudFlare and our customers' origin servers. ...
08/27/2015
It’s that time of year again, when the end of summer is in sight, students are back in school, football is on TV again, and your social feeds are flooded with “vote for my panel at SXSW” updates. ...
08/27/2015
Only two weeks after the announcement of our four new points of presence (PoPs) in the Middle East, it is with much hullabaloo that we announce our 43rd PoP, and second in Africa following Johannesburg, in Mombasa, Kenya (a.k.a. “The Castle”)....
08/19/2015
Today CloudFlare is introducing a new way to purge the cache using Cache-Tags. Cache-Tags are assigned to cached content via a Cache-Tag response header, and are stored as metadata with cached objects so that global purges take only seconds, targeting a granular, finite set of cached objects....
08/17/2015
This is the text of an internal email I sent at CloudFlare that we thought worth sharing more widely. I annotated it a bit with links that weren't in the original....
08/14/2015
CloudFlare turns 5 years old this September. It's been an amazing ride since our launch. Before we launched at TechCrunch Disrupt on September 27, 2010, we'd signed up about 1,000 beta customers. It took us nine months to get those first customers. ...
08/10/2015
Our last embarkation into a new geography coincided with a significant milestone: our 30th data center (and first in Africa) in Johannesburg, South Africa. And as we march past number 40, we’re proud to announce yet another. ...
08/06/2015
Here at CloudFlare we are heavy users of the github.com/miekg/dns Go DNS library and we make sure to contribute to its development as much as possible. Therefore when Dmitry Vyukov published go-fuzz and started to uncover tens of bugs in the Go standard library, our task was clear....
08/05/2015
Forrester Research, Inc. has released The Forrester Wave™: DDoS Services Providers, Q3 2015 report which ranks CloudFlare as a leader. How do you get placed “up and to the right”? ...
08/05/2015
Top of the morning to our users and readers from Ireland! Our latest PoP in Dublin is our 38th globally, and 14th in Europe following our Bucharest deployment last week. As of yesterday, traffic from Ireland's 3.6 million Internet users will now be routed through Dublin as opposed to our London PoP....
08/04/2015
Last week ISC published a patch for a critical remotely exploitable vulnerability in the BIND9 DNS server capable of causing a crash with a single packet. ...
08/03/2015
CloudFlare’s DNS server, RRDNS, is entirely written in Go and typically runs tens of thousands goroutines. Since goroutines are cheap and Go I/O is blocking we run one goroutine per file descriptor we listen on and queue new packets for processing....
07/31/2015
Our global expansion continues in Bucharest, Romania, the 6th largest city in the European Union* following London, Berlin, Madrid, Rome, and Paris (nearly all of which feature a CloudFlare PoP!). ...
07/24/2015
The CloudFlare team is heading to HostingCon 2015 in San Diego next week. We are excited to meet colleagues from the industry, reconnect with partners, and make new friends. ...
07/23/2015
CloudFlare has over 5,000 hosting provider partners. Every day, thousands of our partners' customers take advantage of CloudFlare to help them be faster and more secure....
07/14/2015
What better day than the 14th of July (Bastille Day) to announce the latest addition to our network in Marseille, France? Our data center in the southern city of Marseille is our 2nd in France, 12th in Europe and 36th globally....
07/14/2015
After months of preparation, my teammates Algin, Marty, Adam, Jono and I touched down in Singapore and were greeted by skyscrapers, malls, Singlish, chili crab, and Marty’s special sweet and sour chicken. It immediately hit us that we were no longer in San Francisco....
07/08/2015
Recently I was contacted by Dr. Igor Kozin from The Institute of Cancer Research in London. He asked about the optimal way to compile CloudFlare's open source fork of zlib....
07/07/2015
At CloudFlare, we care a lot about serving requests as fast as possible. Files can be served much faster when already in CloudFlare’s cache....
07/06/2015
Today, shortly after 21:00 UTC, on our internal operations chat there was a scary message from one of our senior support staff: "getting DNS resolution errors on support.cloudflare.com", at the same time as automated monitoring indicated a problem....
07/03/2015
CloudFlare operates a huge global network of servers that proxy our customers' web sites, operate as caches, inspect requests to ensure they are not malicious, deflect DDoS attacks and handle one of the largest authoritative DNS systems in the world. ...
07/01/2015
Today we are thrilled to welcome UK2 Group as a CloudFlare partner. Customers of UK2 Group (including its brands UK2.net, Midphase, and Westhost) are now able to access CloudFlare’s web performance and security solutions with a single click....
07/01/2015
CloudFlare's DNS server, RRDNS, is written in Go and the DNS team used to generate a file called version.go in our Makefile. version.go looked something like this....
06/30/2015
In a recent blog post we explained how to tweak a simple UDP application to maximize throughput. This time we are going to optimize our UDP application for latency. Fighting with latency is a great excuse to discuss modern features of multiqueue NICs. ...
06/24/2015
Someone once said that the best things in life are free and I can’t agree more. I want to draw the attention of the CloudFlare community to a great resource that helps maximize the value of our product. ...
06/24/2015
A major part of securing a network as geographically diverse as CloudFlare’s is protecting data as it travels between datacenters. Customer data and logs are important to protect but so is all the control data that our applications use to communicate with each other. ...
06/22/2015
Move over Jurassic World, the long awaited sequel to our Tokyo deployment is here. Our Osaka data center is our 2nd in Japan, 5th in Asia (following deployments in Hong Kong, Tokyo, Singapore, and Seoul), and 35th globally. ...
06/19/2015
This month, CloudFlare and EFF pushed back against major music labels’ latest strategy to force Internet infrastructure companies like CloudFlare to become trademark and copyright enforcers, by challenging a broad court order that the labels obtained in secret....
06/18/2015
Something that often, uh... bugs Go developers is the lack of a proper debugger. Builds are ridiculously fast and easy, but sometimes it would be nice to just set a breakpoint and step through that endless if chain or print a bunch of values without recompiling ten times....
06/16/2015
Last week during a casual conversation I overheard a colleague saying: "The Linux network stack is slow! You can't expect it to do more than 50 thousand packets per second per core!"...
06/11/2015
Thousands of developers use CloudFlare to accelerate and secure the backend of their mobile applications and websites. This week is WWDC, where thousands of Apple developers come to San Francisco to talk, learn and share best practices for developing software for Apple platforms. ...
06/05/2015
Over the past four years CloudFlare has helped well over two million websites join the modern web, making us one of the fastest growing providers of IPv6 web connectivity on the Internet. ...
05/21/2015
We’ve had the good fortune to share many great experiences with the Acquia team over the last few years. From breaking bread with founder and CTO Dries Buytaert at SXSW, to staying up late with their incredible team onboarding a joint customer under a DDoS attack. ...
05/20/2015
Yesterday, a group from INRIA, Microsoft Research, Johns Hopkins, the University of Michigan, and the University of Pennsylvania published a deep analysis of the Diffie-Hellman algorithm as used in TLS and other protocols. ...
05/13/2015
Earlier today, the lower house in the U.S. Congress passed the USA FREEDOM Act. The Act, if passed by the Senate and signed by the President, would seek to sunset the National Security Agency’s bulk collection and mass surveillance programs....
05/11/2015
For quite some time we've been grilling our candidates about dirty corners of TCP/IP stack. Every engineer here must prove his/her comprehensive understanding of the full network stack. For example: what are the differences in checksumming algorithms between IPv4 and IPv6 stacks?...
05/08/2015
This week, Google announced that its hosted PageSpeed Service will be shut down. Everyone using the hosted service needs to move their site elsewhere before August 3 2015 to avoid breaking their website....
05/07/2015
It is no secret that we at CloudFlare love Go. We use it, and we use it a LOT. There are many things to love about Go, but what I personally find appealing is the ability to write assembly code!...
