Posts by Nick Sullivan

An introduction to JavaScript-based DDoS

Published on by Nick Sullivan.

CloudFlare protects millions of websites from online threats. One of the oldest and most pervasive attacks launched against websites is the Distributed Denial of Service (DDoS) attack. In a typical DDoS attack, an attacker causes a large number of computers to send data to a server, overwhelming its capacity and

Universal SSL: Encryption all the way to the origin, for free

Published on by Nick Sullivan.

Last September, CloudFlare unveiled Universal SSL, enabling HTTPS support for all sites by default. All sites using CloudFlare now support strong cryptography from the browser to CloudFlare’s servers. One of the most popular requests for Universal SSL was to make it easier to encrypt the other half of the

Do the ChaCha: better mobile performance with cryptography

Published on by Nick Sullivan.

CC BY-ND 2.0 image image by Clinton Steeds CloudFlare is always trying to improve customer experience by adopting the latest and best web technologies so that our customers (and their visitors) have a fast and a secure web browsing experience. More and more web sites are now using HTTPS

Kyoto Tycoon Secure Replication

Published on by Nick Sullivan.

Kyoto Tycoon is a distributed key-value store written by FAL Labs, and it is used extensively at CloudFlare. Like many popular key-value stores, Kyoto Tycoon uses timestamp-based replication to ensure eventual consistency and guarantee ordering. Kyoto Tycoon is an open source project, and in the spirit of the holidays, we’