2026-05-13
We’ve enabled higher usage limits, faster performance, better reliability, and increased shipping velocity for our Browser Run product by rebuilding on top of Cloudflare’s Containers. Here’s how....
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2026-04-15
Browser Rendering is now Browser Run, with Live View, Human in the Loop, CDP access, session recordings, and 4x higher concurrency limits for AI agents....
2025-10-28
Cloudflare is launching an experiment with Chrome to evaluate fast, scalable, and quantum-ready Merkle Tree Certificates, all without degrading performance or changing WebPKI trust relationships....
2024-01-04
In this post, we explore the latest changes to Privacy Pass protocol. We are also excited to introduce a public implementation of the latest IETF draft of the Privacy Pass protocol — including a set of open-source templates that can be used to implement Privacy Pass Origins, Issuers, and Attesters...
2023-10-05
Google announced a security issue in Chrome titled "Heap buffer overflow in WebP in Google Chrome." At first it seemed like just another bug, but has implications that extended well beyond Chrome....
October 17, 2019
Just a few weeks ago we announced the availability on our edge network of HTTP/3, the new revision of HTTP intended to improve security and performance on the Internet. Everyone can now enable HTTP/3 on their Cloudflare zone...
October 17, 2018
When considering website performance, the term TTFB - time to first byte - crops up regularly. Often we see measurements from cURL and Chrome, and this article will show what timings those tools can produce, including time to first byte......
July 24, 2018
It's no secret that Cloudflare operates at a huge scale. Cloudflare provides security and performance to over 9 million websites all around the world, from small businesses and WordPress blogs to Fortune 500 companies. That means one in every 10 web requests goes through our netw...
July 24, 2018
I still remember my first foray onto the internet as a university student back in the mid 90's. It was a simpler time back then, of course; we weren't doing our personal banking or our tax returns or handling our medical records so encrypting the transport layer wasn't exactly a ...
June 28, 2018
In preparation for Chrome’s Not Secure flag, which will update the indicator to show Not Secure when a site is not accessed over https, we wanted people to be able to test whether their site would pass. ...
June 28, 2018
Less than one month from today, on July 23, Google will start prominently labeling any site loaded in Chrome without HTTPS as "Not Secure"....
February 14, 2018
Google just announced that beginning in July 2018, with the release of Chrome 68, web pages loaded without HTTPS will be marked as “not secure”. More than half of web visitors will soon see this warning when visiting unencrypted HTTP sites....
November 09, 2017
During a recent internship at Cloudflare, I had the chance to help integrate support for improving the accessibility of websites that are protected by the Cloudflare edge network. ...
November 09, 2017
Cloudflare supports Privacy Pass, a recently-announced privacy-preserving protocol developed in collaboration with researchers from Royal Holloway and the University of Waterloo. ...
February 01, 2017
Nick Sullivan and I gave a talk about TLS 1.3 at 33c3, the latest Chaos Communication Congress. The congress, attended by more that 13,000 hackers in Hamburg, has been one of the hallmark events of the security community for more than 30 years....
September 20, 2016
The encrypted Internet is about to become a whole lot snappier. When it comes to browsing, we’ve been driving around in a beat-up car from the 90s for a while. Little does anyone know, we’re all about to trade in our station wagons for a smoking new sports car. ...
April 04, 2016
Not long ago we introduced support for TLS cipher suites based on the ChaCha20-Poly1305 AEAD, for all our customers. Back then those cipher suites were only supported by the Chrome browser and Google's websites, but were in the process of standardization. ...
November 10, 2014
At CloudFlare, we’re dedicated to ensuring sites are not only secure, but also available to the widest audience. In the coming months, both Google’s Chrome browser and Mozilla’s Firefox browser are changing their policy with respect to certain web site certificates....
December 26, 2013
It’s common knowledge that domain sharding, where the resources in a web page are shared across different domains (or subdomains), is a good thing. ...
September 20, 2013
If you connect to CloudFlare's web site using HTTPS the connection will be secured using one of the many encryption schemes supported by SSL/TLS. ...
