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September 12, 2017 4:29 PM
Understanding the prevalence of web traffic interception
This post summarizes how prevalent encrypted web traffic interception is and how it negatively affects online security according to a study published at NDSS 2017 authored by several researchers including the author of this post and Nick Sullivan of Cloudflare. ...
July 10, 2017 12:43 PM
High-reliability OCSP stapling and why it matters
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....
July 06, 2017 1:35 PM
How to make your site HTTPS-only
The Internet is getting more secure every day as people enable HTTPS, the secure version of HTTP, on their sites and services....
September 24, 2016 3:46 PM
How we brought HTTPS Everywhere to the cloud (part 1)
CloudFlare's mission is to make HTTPS accessible for all our customers. It provides security for their websites, improved ranking on search engines, better performance with HTTP/2, and access to browser features such as geolocation that are being deprecated for plaintext HTTP....
September 22, 2016 2:34 PM
Fixing the mixed content problem with Automatic HTTPS Rewrites
Long ago it was difficult, expensive, and slow to set up an HTTPS capable web site. Then along came services like CloudFlare’s Universal SSL that made switching from http:// to https:// as easy as clicking a button. ...
September 21, 2016 3:51 PM
Opportunistic Encryption: Bringing HTTP/2 to the unencrypted web
Encrypting the web is not an easy task. Various complexities prevent websites from migrating from HTTP to HTTPS, including mixed content, which can prevent sites from functioning with HTTPS. ...
September 20, 2016 1:04 PM
Introducing TLS 1.3
The encrypted Internet is about to become a whole lot snappier. When it comes to browsing, we’ve been driving around in a beat-up car from the 90s for a while. Little does anyone know, we’re all about to trade in our station wagons for a smoking new sports car. ...
September 20, 2016 1:04 PM
Encryption Week
Since CloudFlare’s inception, we have worked tirelessly to make encryption as simple and as accessible as possible. Over the last two years, we’ve made CloudFlare the easiest way to enable encryption for web properties and internet services. ...
May 03, 2016 11:40 AM
Introducing CloudFlare Origin CA
In the fall of 2014 CloudFlare launched Universal SSL and doubled the number of sites on the Internet accessible via HTTPS. In just a few days we issued certificates protecting millions of our customers’ domains and became the easiest way to secure your website with SSL/TLS....
March 28, 2016 9:00 PM
Going to IETF 95? Join the TLS 1.3 hackathon
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!...
March 23, 2016 4:03 PM
TLS Certificate Optimization: The Technical Details behind "No Browser Left Behind"
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....
February 11, 2016 12:49 AM
Change the (S)Channel! Deconstructing the Microsoft TLS Session Resumption bug
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. ...
June 24, 2015 1:57 PM
How to build your own public key infrastructure
A major part of securing a network as geographically diverse as CloudFlare’s is protecting data as it travels between datacenters. Customer data and logs are important to protect but so is all the control data that our applications use to communicate with each other. ...
June 11, 2015 10:31 AM
iOS Developers — Migrate to iOS 9 with CloudFlare
Thousands of developers use CloudFlare to accelerate and secure the backend of their mobile applications and websites. This week is WWDC, where thousands of Apple developers come to San Francisco to talk, learn and share best practices for developing software for Apple platforms....