February 20, 2019 3:14 PM
Bot-powered credential stuffing is a scourge on the modern Internet. These attacks attempt to log into and take over a user’s account by assaulting password forms with a barrage of dictionary words and previously stolen account credentials....
February 18, 2019 1:13 PM
Proper TCP socket splicing reduces the load on userspace processes and enables more efficient data forwarding. We realized that Linux Kernel's SOCKMAP infrastructure can be reused for this purpose....
February 07, 2019 5:00 PM
Cloudflare Access secures your internal sites by adding authentication. When a request is made to a site behind Access, Cloudflare asks the visitor to login with your identity provider....
February 05, 2019 4:00 PM
Cloudflare seeks to help its end customers use whichever public and private clouds best suit their needs. Towards that goal, we have been working to make sure our solutions work well with various public cloud providers including Microsoft’s Azure platform....
January 16, 2019 5:01 PM
When you launch your domain to the world, you rely on the Domain Name System (DNS) to direct your users to the address for your site. However, DNS cannot guarantee that your visitors reach your content because DNS, in its basic form, lacks authentication....
December 25, 2018 5:42 PM
We've put together some Christmas Cryptography questions. Do you think you can solve them?...
December 21, 2018 1:11 PM
Firewall Rules are one of the best security features we released this year, and have been an overwhelming success. Customers have been using Firewall Rules to solve interesting security related use cases....
December 20, 2018 1:00 PM
Recently when logging into one of my credit card providers, I was greeted by a familiar screen. After entering in my username, the service asked me to supply 3 random characters from my password to validate ownership of my account....
November 29, 2018 9:54 AM
As TLS 1.3 was ratified earlier this year, I was recollecting how we got started with it here at Cloudflare. We made the decision to be early adopters of TLS 1.3 a little over two years ago. It was a very important decision, and we took it very seriously....
November 28, 2018 7:59 PM
Efficient packet dropping is a key part of Cloudflare’s distributed denial of service (DDoS) attack mitigations. In this post, we introduce a new tool in our packet dropping arsenal: L4Drop....
November 16, 2018 11:00 AM
You can now place applications that require SSH connections, like your source control repository, behind Cloudflare Access. We’re excited to release that same feature so that your team can also destroy your own VPN....
November 15, 2018 5:22 PM
Last Monday evening — 12 November 2018 — Google and a number of other services experienced a 74 minute outage. Incidents like this only serve to demonstrate just how much frailty is involved in how packets get from one point on the Internet to another....
November 13, 2018 7:33 PM
As Cloudflare Workers matures, we continue to push ourselves to develop and deploy important features using them. Today, we’re excited to announce support for HTTP signed exchanges, generated by Cloudflare Workers!...
