2026-04-01
Eight years ago, we launched 1.1.1.1 to build a faster, more private Internet. Today, we’re sharing the results of our latest independent examination. The result: our privacy protections are working exactly as promised....
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2026-01-14
A recent change to 1.1.1.1 accidentally altered the order of CNAME records in DNS responses, breaking resolution for some clients. This post explores the technical root cause, examines the source code of affected resolvers, and dives into the inherent ambiguities of the DNS RFCs. ...
2025-12-15
AI competition intensified in 2025 as ChatGPT gained strong challengers. Instagram climbed, X declined, and platforms like Shopee, Temu, and Kwai reshaped global Internet usage. Our 2025 DNS data shows how Internet patterns evolved....
2025-10-27
Cloudflare Radar has launched a new Top-Level Domain (TLD) page, providing insights into TLD popularity, traffic, and security. The top-ranking TLD may come as a surprise....
2025-09-04
Unauthorized TLS certificates were issued for 1.1.1.1 by a Certification Authority without permission from Cloudflare. These rogue certificates have now been revoked....
February 27, 2025
The new Cloudflare Radar DNS page provides increased visibility into aggregate traffic and usage trends seen by our 1.1.1.1 resolver...
November 08, 2024
We describe how Cloudflare uses a custom Lisp-like programming language and formal verifier (written in Racket and Rosette) to prevent logical contradictions in our authoritative DNS nameserver’s behavior....
October 29, 2024
DNS records have moved to a new database, bringing improved performance and reliability to all customers....
September 24, 2024
Cloudflare is extending the use of our public DNS resolver through partnering with ISPs and network providers to deliver a safer browsing experience directly to families. Join us in protecting every Internet user from unsafe content with the click of a button, powered by 1.1.1.1 ...
September 23, 2024
In response to customer demand, we now support the ability to DELETE, PATCH, PUT and POST multiple DNS records in a single API call, enabling more efficient and reliable zone management. ...
April 12, 2024
We are launching Foundation DNS – our new enterprise-grade authoritative DNS offering. ...
March 07, 2024
We're proud to introduce the Advanced DNS Protection system, a robust defense mechanism designed to protect against the most sophisticated DNS-based DDoS attacks...
February 29, 2024
Cloudflare recently fixed two critical DNSSEC vulnerabilities: CVE-2023-50387 and CVE-2023-50868. Both of these vulnerabilities can exhaust computational resources of validating DNS resolvers. These vulnerabilities do not affect our Authoritative DNS or DNS firewall products...
January 09, 2024
Welcome to the sixteenth edition of Cloudflare’s DDoS Threat Report. This edition covers DDoS trends and key findings for the fourth and final quarter of the year 2023, complete with a review of major trends throughout the year...
December 14, 2023
In the last decade, IPv6 adoption on the client side went from under 1% to somewhere in the high 30 to low 40 percent, depending on who’s reporting, but there’s also the other end of the equation: the server side...
December 05, 2023
A recent decision from the Higher Regional Court of Cologne in Germany marked important progress for Cloudflare and the Internet in pushing back against misguided attempts to address online copyright infringement through the DNS system...
September 04, 2023
In this blog we’re going to take a closer look at “connection coalescing”, with specific focus on manage it at a large scale...
July 11, 2023
On July 9, 2023, users in the Asia Pacific region experienced connection errors due to origin DNS resolution failures to .com and .net TLD nameservers...
June 23, 2023
More than 162 million fans tuned in to the 2023 Eurovision Song Contest, the first year that non-participating countries could also vote. Cloudflare helped scale and protect the voting application based.io, built by once.net using our rapid DNS infrastructure, CDN, Cloudflare Pag...
February 28, 2023
Introducing a new DNS platform that powers 1.1.1.1 and various other products....
