The Porcupine Attack: investigating millions of junk requests
2017-01-09
We extensively monitor our network and use multiple systems that give us visibility including external monitoring and internal alerts when things go wrong....
How and why the leap second affected Cloudflare DNS
2017-01-01
At midnight UTC on New Year’s Day, deep inside Cloudflare’s custom RRDNS software, a number went negative when it should always have been, at worst, zero. A little later this negative value caused RRDNS to panic. ...
Panama expands Cloudflare network to 50 countries
2016-12-30
A man, a plan, a canal, a data center. Over 5 million Internet properties are now faster across Panama, as Cloudflare turned up its newest data center in Panama City....
2017 and the Internet: our predictions
2016-12-30
Looking back over 2016, we saw the good and bad that comes with widespread use and abuse of the Internet. ...
Using Guzzle and PHPUnit for REST API Testing
2016-12-28
APIs are increasingly becoming the backbone of the modern internet - whether you're ordering food from an app on your phone or browsing a blog using a modern JavaScript framework, chances are those requests are flowing through an API. ...
So you want to expose Go on the Internet
2016-12-26
Back when crypto/tls was slow and net/http young, the general wisdom was to always put Go servers behind a reverse proxy like NGINX. That's not necessary anymore!...
A Very WebP New Year from Cloudflare
2016-12-21
Cloudflare has an automatic image optimization feature called Polish, available for paid plan users. It recompresses images and stripping excess data, speeding up delivery to browsers....
Manage Cloudflare records with Salt
2016-12-14
We use Salt to manage our ever growing global fleet of machines. Salt is great for managing configurations and being the source of truth. We use it for remote command execution and for network automation tasks....
Cloudflare Acquires Eager to Reimagine Apps
2016-12-13
In 2011 we launched the Cloudflare Apps platform in an article that described Cloudflare as “not ... the sexiest business in the world.” Sexy or not, Cloudflare has since grown from the 3.5 billion pageviews a month we were doing then to over 1.3 trillion per month today. ...
We Were Acquired by Cloudflare, Here’s What’s Next
2016-12-13
Like most of you, I first heard of Cloudflare via this blog. I read about HTTP/2, Railgun, the Hundredth Data Center, and Keyless SSL — but I never thought I would work here. I, along with my co-founder Adam, and our friends and coworkers were hard at work building something very different. ...
Caching Anonymous Page Views
2016-12-12
The load time of your website not only affects your search engine rankings, but is also correlated to the conversion rate on your site....
Debugging war story: the mystery of NXDOMAIN
2016-12-07
The following blog post describes a debugging adventure on Cloudflare's Mesos-based cluster. This internal cluster is primarily used to process log file information so that Cloudflare customers have analytics, and for our systems that detect and respond to attacks....
TLD glue sticks around too long
2016-12-05
Recent headline grabbing DDoS attacks provoked heated debates in the DNS community. Everyone has strong opinions on how to harden DNS to avoid downtime in the future. Is it better to use a single DNS provider or multiple? ...
Will autocrats ever learn? - The Internet Blackout in Gambia
2016-12-02
On Wednesday afternoon, Cloudflare and other Internet companies noticed that the West African country of The Gambia had dropped off the Internet - the day before the presidential election that was planned to be held there on Thursday, December 1st. ...
The Daily DDoS: Ten Days of Massive Attacks
2016-12-02
Back in March my colleague Marek wrote about a Winter of Whopping Weekend DDoS Attacks where we were seeing 400Gbps attacks occurring mostly at the weekends. We speculated that attackers were busy with something else during the week....
Not one, not two, but three undersea cables cut in Jersey
2016-11-30
Sometime before midnight Monday (UK local time) a ship dropped its anchor and broke, not one, not two, but three undersea cables serving the island of Jersey in the English Channel. ...
HPACK: the silent killer (feature) of HTTP/2
2016-11-28
If you have experienced HTTP/2 for yourself, you are probably aware of the visible performance gains possible with HTTP/2 due to features like stream multiplexing, explicit stream dependencies, and Server Push. ...
98.01% of sites on Cloudflare now use IPv6
2016-11-21
It's 2016 and almost every site using Cloudflare (more than 4 million of them) is using IPv6. Cloudflare sees significant IPv6 traffic globally where networks have enabled IPv6 to the consumer....
Arribem a Barcelona! Cloudflare’s 101st data center
2016-11-14
Hola Barcelona! The land of Antoni Gaudí, Salvador Dalí, Ferrán Adriá and Lionel Messi is now also home to Cloudflare. Located alongside the Mediterranean, Barcelona, is the capital of the autonomous community of Catalonia....
Generating Documentation for TypeScript Projects
2016-11-12
Traditionally, JavaScript docs use code comments. This post explores generating documentation directly from TypeScript source code, a more efficient alternative....
