September 30, 2022 1:00 PM
Today, we are launching a new dataset called Radar Rankings, where we identify the top most popular domains that reflect how people use the Internet globally and per country....
May 25, 2022 12:59 PM
Now we’re happy to announce we will return more error code types and include additional helpful information to further improve your debugging experience....
May 25, 2022 12:59 PM
How we redesigned our DNS pipeline to significantly improve DNS propagation speed across all zones....
May 03, 2022 12:58 PM
Today we’re announcing the availability of proxied wildcard DNS records on all plan levels...
March 08, 2022 8:55 PM
The majority of DNS queries on the Internet today are unencrypted. This post describes a new protocol, called Discovery of Designated Resolvers (DDR), that allows clients to upgrade from unencrypted DNS to encrypted DNS when only the IP address of a resolver is known. ...
November 13, 2021 2:33 PM
Earlier this week, Cloudflare automatically detected and mitigated a DDoS attack that peaked just below 2 Tbps — the largest we’ve seen to date....
November 12, 2021 12:59 PM
New to Cloudflare and don’t know where to begin? Here are five things you can do to get started with Cloudflare right now......
October 08, 2021 3:16 PM
Today, we're going to show you how the Facebook and affiliate sites downtime affected us, and what we can see in our data....
October 04, 2021 9:08 PM
Today at 1651 UTC, we opened an internal incident entitled "Facebook DNS lookup returning SERVFAIL" because we were worried that something was wrong with our DNS resolver 1.1.1.1. But as we were about to post on our public status page we realized something else more serious was ...
September 27, 2021 12:59 PM
Today we’re announcing a new tool to tackle email spoofing and phishing. We’ll warn users about insecure configurations and provide an easy-to-use wizard to create required DNS records....
March 20, 2021 2:00 PM
How we use gRPC in combination with Kubernetes to improve the performance and usability of internal APIs....
March 08, 2021 2:00 PM
We use Consul for service discovery, and we’ve deployed a cluster that spans several of our data centers. We were aware from the start that the DNS query latencies were not great from certain parts of the world that were furthest away from these data centers....
December 08, 2020 12:00 PM
Today, we’re making several announcements around improving Internet protocols with respect to something important to our customers and Internet users worldwide: privacy....
December 08, 2020 12:00 PM
Oblivious DoH (ODoH) makes secure DNS over HTTPS (DoH) queries into private queries which prevent the leakage of client IP addresses to resolvers. The new proposed ODoH standard addresses this problem and today we are enabling users to use this protocol with 1.1.1.1...
December 08, 2020 12:00 PM
A deep dive into the Encrypted Client Hello, a standard that encrypts privacy-sensitive parameters sent by the client, as part of the TLS handshake....
November 30, 2020 1:14 PM
We've improved the resiliency and management of our infrastructure DNS zone. In this post, we guide you through some of the "whats", "whys" and "hows" we encountered along the way. ...
November 13, 2020 7:06 PM
Researchers from UC Riverside and Tsinghua University found a new way to revive a decade-old DNS cache poisoning attack. Read our deep dive into how the SAD DNS attack on DNS resolvers works, how we protect against this attack in 1.1.1.1, and what the future holds for DNS cache p...
October 30, 2020 12:00 PM
We recently released a new version of Cloudflare Resolver, which adds a piece of information called “Extended DNS Errors” (EDE) along with the response code under certain circumstances. This will be helpful in tracing DNS resolution errors and figure out what went wrong behind th...
October 02, 2020 7:35 AM
October 1 is DNS Flag Day, an initiative by the DNS community to make DNS more secure, reliable and robust. This year the focus is on problems around IP fragmentation of DNS packets....
