This is strictly a violation of the TCP specification
2016-08-12
I was asked to debug another weird issue on our network. Apparently every now and then a connection going through CloudFlare would time out with 522 HTTP error....
CloudFlare's JSON-powered Documentation Generator
2016-08-03
Everything that it's possible to do in the CloudFlare Dashboard is also possible through our RESTful API. We use the same API to power the dashboard itself....
Introducing the p0f BPF compiler
2016-08-02
Two years ago we blogged about our love of BPF (BSD packet filter) bytecode. Today we are very happy to open source another component of the bpftools: our p0f BPF compiler!...
Ask Some HTTP/2 Pros The Hard Questions
2016-07-20
We're big fans of HTTP/2 and our customers make up the majority of HTTP/2 enabled domains today. HTTP/2 is a key part of the modern web, and its growth and adoption is changing how websites and applications are built....
CloudFlare sites protected from httpoxy
2016-07-18
We have rolled out automatic protection for all customers for the the newly announced vulnerability called httpoxy....
More data, more data
2016-07-12
The life of a request to CloudFlare begins and ends at the edge. But the afterlife! Like Catullus to Bithynia, the log generated by an HTTP request or a DNS query has much, much further to go....
Why we use the Linux kernel's TCP stack
2016-07-07
A recent blog post posed the question Why do we use the Linux kernel's TCP stack?. It triggered a very interesting discussion on Hacker News....
HTTP/2 Server Push with multiple assets per Link header
2016-06-30
In April we announced that we had added experimental support for HTTP/2 Server Push to all CloudFlare web sites. We did this so that our customers could iterate on this new functionality. ...
The complete guide to Go net/http timeouts
2016-06-29
When writing an HTTP server or client in Go, timeouts are amongst the easiest and most subtle things to get wrong: there’s many to choose from, and a mistake can have no consequences for a long time, until the network glitches and the process hangs....
Economical With The Truth: Making DNSSEC Answers Cheap
2016-06-24
We launched DNSSEC late last year and are already signing 56.9 billion DNS record sets per day. At this scale, we care a great deal about compute cost....
A Post Mortem on this Morning's Incident
2016-06-21
We would like to share more details with our customers and readers on the internet outages that occurred this morning and earlier in the week, and what we are doing to prevent these from happening again....
Join Us And Paul Vixie On Tuesday To Discuss BIND, Root Servers, And DNS Security
2016-06-17
CloudFlare and Gandi have been hosting a speaker series on DNS, previously bringing in the founder of DNS Paul Mockapetris and Dan Kaminsky, who uncovered one of the most critical vulnerabilities in DNS....
Moscow, Russia: CloudFlare’s 83rd data center
2016-06-16
Здравствуйте! ))) CloudFlare is excited to announce the newest addition to our network in the largest country in the world (by footprint), increasing both our data center and city count to 83. ...
Hello, Colorado! CloudFlare's 82nd Data Center is Live in Denver
2016-06-15
Hello from the Mile High City! Denver is our twelfth data center in the United States, and our 82nd data center globally, improving regional web performance....
Secure and fast GitHub Pages with CloudFlare
2016-06-14
GitHub offers a web hosting service whereby you can serve a static website from a GitHub repository. This platform, GitHub Pages, can be used with CloudFlare whilst using a custom domain name. ...
Brussels, Belgium: CloudFlare's 81st Data Center is Live!
2016-06-13
Our week begins in Brussels, where we announce our newest data center. This is our 23rd data center in Europe alone, and our 81st data center globally - providing additional redundancy to nearby facilities in Amsterdam and Paris....
Optimizing TLS over TCP to reduce latency
2016-06-10
The layered nature of the Internet (HTTP on top of some reliable transport (e.g. TCP), TCP on top of some datagram layer (e.g. IP), IP on top of some link (e.g. Ethernet)) has been very important in its development. ...
Perth, Australia: 80th Data Center
2016-06-10
CloudFlare is excited to announce the launch of our newest data center in Perth, Australia. This expands the breadth of our global network to span 80 unique cities across 41 countries, and is our fourth data center in the Oceania region....
Open Sourcing CloudFlare’s UI Framework
2016-06-08
Late last year, the CloudFlare UI team made a huge decision: to change JavaScript frameworks from Backbone & Marionette to React & Redux....
Supporting the transition to IPv6-only networking services for iOS
2016-06-07
Early last month Apple announced that all apps submitted to the Apple Store June 1 forward would need to support IPv6-only networking as they transition to IPv6-only network services in iOS 9. ...
