February 06, 2018 10:33 PM
The root of the DNS tree has been using DNSSEC to protect the zone content since 2010. DNSSEC is simply a mechanism to provide cryptographic signatures alongside DNS records that can be validated, i.e. prove the answer is correct and has not been tampered with. ...
December 22, 2017 2:17 PM
During 2017 Cloudflare published 172 blog posts (including this one). If you need a distraction from the holiday festivities at this time of year here are some highlights from the year....
December 12, 2017 2:00 PM
Phishing is the absolute worst. Unfortunately, sometimes phishing campaigns use Cloudflare for the very convenient, free DNS. ...
December 07, 2017 2:00 PM
One thing we take pride in at Cloudflare is embracing new protocols and standards that help make the Internet faster and safer. Sometimes this means that we’ll launch support for experimental features or standards still under active development, as we did with TLS 1.3....
November 23, 2017 3:28 AM
News outlets and blogs will frequently compare DDoS attacks by the volume of traffic that a victim receives. Surely this makes some sense, right? The greater the volume of traffic a victim receives, the harder to mitigate an attack - right? ...
September 10, 2017 5:04 PM
Since March 30, 2017, Cloudflare has been providing DNS Anycast service as additional F-Root instances under contract with ISC (the F-Root operator). F-Root is a single IPv4 address plus a single IPv6 address which both ISC and Cloudflare announce to the global Internet as a sh...
August 18, 2017 5:40 PM
As opposed to the public telephone network, the internet has a Packet Switched design. But just how big can these packets be?...
July 21, 2017 8:01 AM
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....
May 25, 2017 5:30 PM
At Cloudflare we believe in being good to the Internet and good to our customers. By moving on from the legacy world of IPv4-only to the modern-day world where IPv4 and IPv6 are treated equally, we believe we are doing exactly that....
May 14, 2017 3:00 PM
Cloudflare's Enterprise customers have been using our Load Balancing service since March, and it has been helping them avoid website downtime caused by unreliable hosting providers, Internet outages, or servers. ...
May 10, 2017 9:50 PM
On Friday, we announced DNS analytics for all Cloudflare customers. Because of our scale –– by the time you’ve finished reading this, Cloudflare DNS will have handled millions of DNS queries –– we had to be creative in our implementation. ...
May 05, 2017 2:55 PM
Have you noticed something new in your Cloudflare analytics dashboard this morning? You can now see detailed DNS analytics for your domains on Cloudflare....
April 12, 2017 3:06 PM
We’ve been working with registrars and registries in the IETF on making DNSSEC easier for domain owners, and over the next two weeks we’ll be starting out by enabling DNSSEC automatically for .dk domains....
April 11, 2017 9:28 AM
Cloudflare is now well into its 6th year and providing authoritative DNS has been a core part of infrastructure from the start. We’ve since grown to be the largest and one of the fastest managed DNS services on the Internet, hosting DNS for nearly 100,000 of the Alexa top 1M site...
February 14, 2017 6:04 PM
Curious where your DNS traffic is coming from, how much DNS traffic is on your domain, and what records people are querying for that don’t exist? We now have a Grafana plugin for you. ...
January 01, 2017 10:40 PM
At midnight UTC on New Year’s Day, deep inside Cloudflare’s custom RRDNS software, a number went negative when it should always have been, at worst, zero. A little later this negative value caused RRDNS to panic. ...
December 14, 2016 2:25 PM
We use Salt to manage our ever growing global fleet of machines. Salt is great for managing configurations and being the source of truth. We use it for remote command execution and for network automation tasks....
December 07, 2016 2:11 PM
The following blog post describes a debugging adventure on Cloudflare's Mesos-based cluster. This internal cluster is primarily used to process log file information so that Cloudflare customers have analytics, and for our systems that detect and respond to attacks....
December 05, 2016 1:54 PM
Recent headline grabbing DDoS attacks provoked heated debates in the DNS community. Everyone has strong opinions on how to harden DNS to avoid downtime in the future. Is it better to use a single DNS provider or multiple? ...
