We’re Hosting a Go Hackathon!
2016-01-20
The Go test coverage implementation is quite ingenious: when asked to, the Go compiler will preprocess the source so that when each code portion is executed a bit is set in a coverage bitmap....
Go coverage with external tests
2016-01-19
The Go test coverage implementation is quite ingenious: when asked to, the Go compiler will preprocess the source so that when each code portion is executed a bit is set in a coverage bitmap....
Think Global, Peer Local. Peer with CloudFlare at 100 Internet Exchange Points
2016-01-18
Internet Exchange Points (IXPs) or Network Access Points (NAPs) facilities are where networks meet, participating in what's known as peering, which interconnects various parts of the global Internet....
Flexible, secure SSH with DNSSEC
2016-01-13
If you read this blog on a regular basis, you probably use the little tool called SSH, especially its ubiquitous and most popular implementation OpenSSH....
Cairo, Egypt: CloudFlare’s 74th Data Center
2015-12-30
It’s been a big year of expansion for CloudFlare’s global network as we added new data centers across six continents, and we’re certainly not done. Today we announce the launch of our newest data center in Cairo, Egypt and a partnership with Telecom Egypt. ...
How to Talk to Your Parents About Encryption
2015-12-25
It’s December 25th, which means most of you are probably at home visiting with family. I asked a few of the security engineers here at CloudFlare how they explain their jobs when they’re home for the holidays, and here's what they had to say....
Zdrasti, Sofia! CloudFlare’s 73rd Data Center Now Live
2015-12-24
Only days after the launch of our Hamburg data center, CloudFlare is excited to announce yet another European data center - this time in Sofia, Bulgaria. With over 1.2 million people, Sofia is a city with rich history tracing back over 7,000 years....
Why it’s harder to forge a SHA-1 certificate than it is to find a SHA-1 collision
2015-12-22
It’s well known that SHA-1 is no longer considered a secure cryptographic hash function. Researchers now believe that finding a hash collision (two values that result in the same value when SHA-1 is applied) is inevitable and likely to happen....
What's inside net/http? Late binding in the Go standard library
2015-12-21
It's well known that we're heavy users of the Go programming language at CloudFlare. Our work often involves delving into the standard library source code to understand internal code paths, error handling and performance characteristics....
Unser neues 72. Rechenzentrum: Hamburg
2015-12-18
Yesterday we announced new points of presence (PoPs) in Montreal and Vancouver. Today: Hamburg. However, the holidays are hardly over, and we have lots more cheer to spread. ...
Vancouver & Montreal, Canada: CloudFlare's latest data centers
2015-12-17
With the holiday season in full swing, it's only fitting that we continue to spread cheer, joy and a faster Internet around the world. To start the season we begin in Canada with NHL rivals Montreal and Vancouver, our 70th and 71st points of presence (PoPs) globally. Montreal and Vancouver, the 2nd and 3rd largest Canadian metropolitan areas, respectively, join our existing PoP in Canada's largest, Toronto. Together, CloudFlare's network in Canada is now milliseconds away from the country's ...
A Different Kind of POP: The Joomla Unserialize Vulnerability
2015-12-17
At CloudFlare, we spend a lot of time talking about the PoPs (Points of Presence) we have around the globe, however, on December 14th, another kind of POP came to the world: a vulnerability being exploited in the wild against Joomla’s Content Management System....
Partial kernel bypass merged into netmap main
2015-12-17
In a previous post we described our work on a new netmap mode called single-rx-queue. After submitting the pull request, the netmap maintainers told us that the patch was interesting, but they would prefer something more configurable instead of a tailored custom mode....
HTTP/2 Demo: Under the Hood
2015-12-11
At first glance, the potential performance improvements of HTTP/1.1 versus HTTP/2 on our demo page may seem a bit hard to believe. So, we put together a technical explanation of how this demo actually works. ...
HTTP/2 For Web Developers
2015-12-10
HTTP/2 changes the way web developers optimize their websites. In HTTP/1.1, it’s become common practice to eek out an extra 5% of page load speed by hacking away at your TCP connections and HTTP requests with techniques like spriting, inlining, domain sharding, and concatenation....
SHA-1 Deprecation: No Browser Left Behind
2015-12-09
After December 31, 2015, SSL certificates that use the SHA-1 hash algorithm for their signature will be declared technology non grata on the modern Internet. ...
What is Internet Governance and Why Does it Matter?
2015-12-04
In November, CloudFlare participated in the tenth annual Internet Governance Forum (IGF) in João Pessoa, Brazil. ...
Tools for debugging, testing and using HTTP/2
2015-12-04
With CloudFlare's release of HTTP/2 for all our customers the web suddenly has a lot of HTTP/2 connections. To get the most out of HTTP/2 you'll want to be using an up to date web browser (all the major browsers support HTTP/2)....
HTTP/2 is here! Goodbye SPDY? Not quite yet
2015-12-03
Today CloudFlare is introducing HTTP/2 support for all customers using SSL/TLS connections, while still supporting SPDY. There is no need to make a decision between SPDY or HTTP/2. ...
Zürich, Switzerland: CloudFlare's 69th Data Center
2015-11-20
Grüetzi Zürich, our 5th point of presence (PoP) to be announced this week, and 69th globally! Located at the northern tip of Lake Zürich in Switzerland, the city of Zürich, often referred to as "Downtown Switzerland," is the largest city in the country....