03/30/2016
The Tor Project makes a browser that allows anyone to surf the Internet anonymously. Tor stands for "the onion router" and that describes how the service works. Traffic is routed through a number of relays where each relay only knows the next hop, not the ultimate destination....
03/28/2016
If you’re in Buenos Aires on April 2-3 and are interested in building, come join the IETF Hackathon. CloudFlare and Mozilla will be working on TLS 1.3, the first new version of TLS in eight years!...
03/23/2016
Back in early December we announced our "no browser left behind" initiative to the world. Since then, we have served well over 500 billion SHA-1 certificates to visitors that otherwise would not have been able to communicate securely with our customers’ sites using HTTPS....
03/04/2016
One way that attackers DDoS websites is by repeatedly doing DNS lookups that have small queries, but large answers. The attackers spoof their IP address so that the DNS answers are sent to the server they are attacking, this is called a reflection attack....
03/03/2016
Over the last month, we’ve been watching some of the largest distributed denial of service (DDoS) attacks ever seen unfold. As CloudFlare has grown we've brought on line systems capable of absorbing and accurately measuring attacks....
03/01/2016
CloudFlare customers are automatically protected against the recently disclosed DROWN Attack. We do not have SSLv2 enabled on our servers....
02/29/2016
A buffer overflow error in GNU libc DNS stub resolver code was announced last week as CVE-2015-7547. While it doesn't have any nickname yet (last year's Ghost was more catchy), it is potentially disastrous....
02/24/2016
At CloudFlare, we’ve constructed one of the world’s largest networks purpose-built to protect our customers from a wide range of attacks. ...
02/19/2016
We're happy to announce that next week CloudFlare is hosting the Null Security meetup in Singapore. You are invited!...
02/12/2016
At CloudFlare, we’re committed to making sure the encrypted web is available to everyone, even those with older browsers. At the same time, we want to make sure that as many people as possible are using the most modern and secure encryption available to them. ...
02/11/2016
Several months ago we started hearing occasional reports from .NET developers that they were having trouble maintaining HTTPS sessions with one of our customer’s websites. ...
02/03/2016
CloudFlare released HTTP/2 support for all customers on December 3rd, 2015. Now, two months later, it's time to take a look at the impact of this release on the HTTP/2 "universe" and also at what has changed from a HTTP/2 vs. SPDY vs. HTTP 1.1 traffic ratio perspective....
01/25/2016
Improving your site’s SEO is probably top of mind for you, but doing so takes a lot of hard work and the rules of the game are constantly changing....
01/22/2016
Four thousand miles (6,400 kilometers) separate CloudFlare’s latest two data centers: Oslo (#75) and Minneapolis (#76)....
01/21/2016
The web is an collaborative ecosystem. Web standards exist to ensure that participants of the network behave in a predictable way....
01/20/2016
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....
01/19/2016
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....
01/18/2016
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....
01/13/2016
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....
12/30/2015
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. ...
12/25/2015
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....
12/24/2015
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....
12/22/2015
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....
12/21/2015
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....
12/18/2015
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. ...
12/17/2015
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 ...
12/17/2015
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....
12/17/2015
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....
12/11/2015
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. ...
12/10/2015
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....
12/09/2015
fter 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. ...
12/04/2015
In November, CloudFlare participated in the tenth annual Internet Governance Forum (IGF) in João Pessoa, Brazil. ...
12/04/2015
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)....
12/03/2015
Why choose, if you can have both? 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. ...
11/20/2015
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....
11/19/2015
India is home to 400 million Internet users, second only to China, and will add more new users this year than any other country in the world. CloudFlare protects and accelerates 4 million websites, mobile apps and APIs, and is trusted by over 10,000 new customers each day....
11/19/2015
A customer reported an unusual problem with our CloudFlare CDN: our servers were responding to some HTTP requests slowly. Extremely slowly. 30 seconds slowly....
11/17/2015
To get the week started it's our distinct pleasure to introduce CloudFlare's latest PoP (point of presence) in Copenhagen, Denmark. Our Copenhagen data center extends the CloudFlare network to 65 PoPs across 34 countries, with 17 in Europe alone. ...
11/10/2015
CloudFlare launched just five years ago with the goal of building a better Internet. That’s why we are excited to announce that beginning today, anyone on CloudFlare can secure their traffic with DNSSEC in just one simple step....
11/06/2015
Three years and 46 data centers later our expansion returns to the United States. Phoenix, the latest addition to the CloudFlare network, is our 11th point of presence in North America, and the start of our effort to further regionalize traffic across the continent. ...
