Broken packets: IP fragmentation is flawed
2017-08-18
As opposed to the public telephone network, the internet has a Packet Switched design. But just how big can these packets be?...
Why We Terminated Daily Stormer
2017-08-16
Earlier today, Cloudflare terminated the account of the Daily Stormer. We've stopped proxying their traffic and stopped answering DNS requests for their sites. We've taken measures to ensure that they cannot sign up for Cloudflare's services ever again....
Power outage hits the island of Taiwan. Here’s what we learned.
2017-08-16
At approximately 4:50pm local time (8:50am UTC) August 15, a major unexpected power outage hit the island of Taiwan with a significant amount of its power generation facilities going down....
Recap: How to make a Cloudflare App workshop in Austin
2017-08-11
Cloudflare hosted a developer preview workshop in Austin for Cloudflare Apps, taught by Zack Bloom, tech lead of Cloudflare Apps....
Moving Forward with Path Forward
2017-08-10
In February, I blogged about our first rotation of Path Forward returnships and the awesome people we’ve hired as a result of the program....
The Languages Which Almost Became CSS
2017-08-02
When Tim Berners-Lee announced HTML in 1991 there was no method of styling pages. How a given HTML tag was rendered was determined by the browser, often with significant input from the user’s preferences...
Net Neutrality Day: Cloudflare + Fight for the Future
2017-07-25
For Net Neutrality Day on July 12, Fight for the Future launched a Cloudflare App installable for websites all over the world. Sites with it installed saw as many as 178M page views prompting the users to write to their local congressional representative on the importance of Net Neutrality....
How to use Cloudflare for Service Discovery
2017-07-21
Cloudflare runs 3,588 containers, making up 1,264 apps and services that all need to be able to find and discover each other in order to communicate -- a problem solved with service discovery....
Aquele Abraço Rio de Janeiro: Cloudflare's 116th Data Center!
2017-07-19
Cloudflare is excited to announce our newest data center in Rio de Janeiro, Brazil. This is our eighth data center in South America, and expands the Cloudflare network to 116 cities across 57 countries....
Ninth Circuit Rules on National Security Letter Gag Orders
2017-07-18
As we’ve previously discussed on this blog, Cloudflare has been challenging for years the constitutionality of the FBI’s use of national security letters (NSLs) to demand user data on a confidential basis....
Getting started with Cloudflare Apps
2017-07-12
We recently launched our new Cloudflare Apps platform, and love to see the community it is building. In an effort to help people who run web services such as websites, APIs and more, we would like to help make your web services faster, safer and more reliable....
High-reliability OCSP stapling and why it matters
2017-07-10
At Cloudflare our focus is making the internet faster and more secure. Today we are announcing a new enhancement to our HTTPS service: High-Reliability OCSP stapling....
Participate in the Net Neutrality Day of Action
2017-07-09
We at Cloudflare strongly believe in network neutrality, the principle that networks should not discriminate against content that passes through them. ...
How to make your site HTTPS-only
2017-07-06
The Internet is getting more secure every day as people enable HTTPS, the secure version of HTTP, on their sites and services....
Three little tools: mmsum, mmwatch, mmhistogram
2017-07-04
In a recent blog post, my colleague Marek talked about some SSDP-based DDoS activity we'd been seeing recently. In that blog post he used a tool called mmhistogram to output an ASCII histogram....
A container identity bootstrapping tool
2017-07-03
Everybody has secrets. Software developers have many. Often these secrets—API tokens, TLS private keys, database passwords, SSH keys, and other sensitive data—are needed to make a service run properly and interact securely with other services. ...
Stupidly Simple DDoS Protocol (SSDP) generates 100 Gbps DDoS
2017-06-28
Last month we shared statistics on some popular reflection attacks. Back then the average SSDP attack size was ~12 Gbps....
Announcing the Cloudflare Apps Platform and Developer Fund
2017-06-27
When we started Cloudflare we had no idea if anyone would validate our core idea. Our idea was that everyone should have the ability to be as fast and secure as the Internet giants like Google, Facebook, and Microsoft. Six years later, it's incredible how far that core idea has taken us....
Announcing the New Cloudflare Apps
2017-06-27
Today we’re excited to announce the next generation of Cloudflare Apps. Cloudflare Apps is an open platform of tools to build a high quality website....
Project Jengo: Explaining Challenges to Patent Validity (and a looming threat)
2017-06-23
We’ve written a couple times about the problem of patent trolls, and what we are doing in response to the first case a troll filed against Cloudflare. We set a goal to find prior art on all 38 Blackbird Tech patents and applications. ...