2015-07-07

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....

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  Rajeev Sharma

2015-07-06

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....

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  Ryan Lackey

2015-07-03

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. ...

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  Ben Cartwright-Cox

2015-07-01

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....

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  Maria Karaivanova

2015-07-01

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....

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  Filippo Valsorda

2015-06-30

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. ...

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  Marek Majkowski

2015-06-24

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. ...

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  Elenitsa Staykova

2015-06-24

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. ...

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  Nick Sullivan

2015-06-22

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. ...

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  Joshua Motta

2015-06-19

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....

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  Guest Author

2015-06-18

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....

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  Filippo Valsorda

2015-06-16

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!"...

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  Marek Majkowski

2015-06-11

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. ...

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  Nick Sullivan

2015-06-05

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. ...

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  Martin J Levy

2015-05-21

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. ...

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  Maria Karaivanova

2015-05-20

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. ...

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  Filippo Valsorda

2015-05-13

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....

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  Kenneth R. Carter

2015-05-11

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?...

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  Marek Majkowski

2015-05-08

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....

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  John Roberts

2015-05-07

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!...

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  Vlad Krasnov