
NIST has standardized four post-quantum signature schemes so far, and they’re not done yet: there are fourteen new candidates in the running for standardization. In this blog post we take measure of them and discover why we ended up with so many PQ signatures.

Election Day 2024 in the US saw a surge in cyber activity. Cloudflare blocked several DDoS attacks on political and election sites, ensuring no impact. In this post, we analyze these attacks, as well Internet traffic increases across the US and other key trends.
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Joao Tome, Jocelyn·November 6, 2024Security 
Workers Builds, an integrated CI/CD pipeline for the Workers platform, recently launched in open beta. We walk through how we built this product on Cloudflare’s Developer Platform.
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Serena, Jacob Hands·October 31, 2024SRE & Ops 
Post-acquisition, we migrated Baselime from AWS to the Cloudflare Developer Platform and in the process, we improved query times, simplified data ingestion, and now handle far more events, all while cutting costs. Here’s how we built a modern, high-performing observability platform on Cloudflare’s network.

On October 30, 2024, cloud hosting provider OVHcloud (AS16276) suffered a brief but significant outage. Within this post, we review Cloudflare’s perspective on this outage.
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Bryton, David Belson·October 30, 2024SRE & Ops 
The third quarter of 2024 was particularly active, with quite a few significant Internet disruptions. Underlying causes included government-directed shutdowns, power outages, hurricane damage, terrestrial and submarine cable cuts, military action, and more.
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David Belson, Doug Madory·October 29, 2024Engineering 
According to a survey done by W3Techs, as of October 2024, Cloudflare is used as an authoritative DNS provider by 14.5% of all websites
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Alex Fattouche, Corey Horton·October 29, 2024Databases 
Hyperdrive (Cloudflare’s globally distributed SQL connection pooler and cache) recently added support for directing database traffic from Workers across Cloudflare Tunnels. We dive deep on what it took to add this feature.
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Andrew Repp, Emilio Assuncao·October 25, 2024Databases 
Cloudflare Workflows is now in open beta! Workflows allows you to build reliable, repeatable, long-lived multi-step applications that can automatically retry, persist state, and scale out. Read on to learn how Workflows works, how we built it on top of Durable Objects, and how you can deploy your first Workflows application.

Learn how we built Cloudflare Queues using our own Developer Platform and how it evolved to a geographically-distributed, horizontally-scalable architecture built on Durable Objects. Our new architecture supports over 10x more throughput and over 3x lower latency compared to the previous version.

How we scaled AI Gateway to handle and store billions of requests, using Cloudflare Workers, D1, Durable Objects, and R2.
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Catarina Pires Mota, Gabriel Massadas·October 24, 2024AI & ML 
Welcome to the 19th edition of the Cloudflare DDoS Threat Report. Released quarterly, these reports provide an in-depth analysis of the DDoS threat landscape as observed across the Cloudflare network. This edition focuses on the third quarter of 2024.

Access for Infrastructure, BastionZero’s integration into Cloudflare One, will enable organizations to apply Zero Trust controls to their servers, databases, Kubernetes clusters, and more. Today we’re announcing short-lived SSH access as the first available feature of this integration.
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Goldbe, Ann Ming Samborski·October 23, 2024SRE & Ops 
In this blog post we will describe how we use anomaly detection to watch for novel DDoS attacks. We’ll provide an overview of how we build models which flag unusual traffic and keep our customers safe.
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Nick Wood, Manish·October 23, 2024Security 
Vectorize was recently upgraded and made generally available, now supporting indexes of up to 5 million vectors, delivering faster responses, with lower pricing and a free tier. This post dives deep into how we built Vectorize to enable these improvements.
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Jerome, Alex Graham·October 22, 2024Databases 
Cloudflare’s global fleet benefits from being managed by open source firmware for the Baseboard Management Controller (BMC), OpenBMC. This has come with various challenges, some of which we discuss here with an explanation of how the open source nature of the firmware for the BMC enabled us to fix the issues and maintain a more stable fleet.

Hono is a web framework that is fast, lightweight, and built using the Web Standards API. Hear the story of Hono by the creator of Hono.

Uphold Zero Trust principles and protect against identity-based attacks by sharing Cloudflare user risk scores with Okta. Learn how this new integration allows your organization to mitigate risk in real time, make informed access decisions, and free up security resources with automation.
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Noelle, Andrew Meyer·October 15, 2024Security 
Cloudflare’s Gen 12 server is the most powerful and power efficient server that we have deployed to date. Through sensitivity analysis, we found that Cloudflare workloads continue to scale with higher core count and higher CPU frequency, as well as achieving a significant boost in performance with larger L3 cache per core.

I am thrilled to embark on this journey to run Product and Engineering at Cloudflare, driving forward the mission of helping build a better Internet.

This roundup blog post shares the latest new features and capabilities at Cloudflare. Learn more about new Digital Experience (DEX) monitoring notifications and seamless access to Cloudflare Gateway with China Express.
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Guy Nir, Dong Zhang·October 9, 2024SRE & Ops 
We realized that we need a way to automatically heal our platform from an operations perspective, and designed and built a workflow orchestration platform to provide these self-healing capabilities across our global network. We explore how this has helped us to reduce the impact on our customers due to operational issues, and the rich variety of similar problems it has empowered us to solve.

The Kubernetes team runs several multi-tenant clusters across Cloudflare’s core data centers. When multi-tenant cluster isolation is too limiting for an application, we use KubeVirt. KubeVirt is a cloud-native solution that enables our developers to run virtual machines alongside containers.

The acquisition and integration of Kivera broadens the scope of Cloudflare’s SASE platform beyond just apps, incorporating increased cloud security through proactive configuration management of cloud services.
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Noelle, Neil Brown·October 8, 2024Security 
Great thermal solutions play a crucial role in hardware reliability and performance. Gen 12 servers have implemented an exhaustive thermal analysis to ensure optimal operations within a wide variety of temperature conditions and use cases. By implementing new design and control features for improved power efficiency on the compute nodes we also enabled the support of powerful accelerators to serve

Introducing Cloudflare’s free security.txt generator, empowering all users to easily create and manage their security.txt files. This feature enhances vulnerability disclosure processes, aligns with industry standards, and is integrated into the dashboard for seamless access.
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Alexandra, Sam Khawase·October 6, 2024Security 
Cloudflare’s DDoS defenses have automatically and successfully detected and mitigated a 3.8 terabit per second DDoS attack — the largest attack on record — as part of a month-long campaign of over a hundred hyper-volumetric L3/4 DDoS attacks.

We’re pleased to announce that the litigation against Sable has finally concluded on terms that we believe send a strong message to patent trolls everywhere — if you bring meritless patent claims against Cloudflare, we will fight back and we will win.
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Emily Terrell, Patrick Nemeroff·October 2, 2024Engineering 
On Monday, September 30, customers on Verizon’s mobile network in multiple cities across the United States reported experiencing a loss of connectivity. HTTP request traffic data from Verizon’s mobile ASN (AS6167) showed nominal declines across impacted cities.

Recapping all the big announcements made during 2024’s Birthday Week.
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Kelly May Johnston, Brendan Irvine Broque·September 30, 2024Engineering 
At Cloudflare, we believe in the power of open source. With Project Alexandria, our expanded open source program, we’re helping open source projects have a sustainable and scalable future, providing them with the tools and protection needed to thrive.
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Veronica Marin, Gabby Shires·September 27, 2024Engineering 
This year for Cloudflare’s birthday, we’ve extended our AI Assistant capabilities to help you build new WAF rules, added new AI bot & crawler traffic insights to Radar, and given customers new AI bot blocking capabilities.
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Adam Martinetti, Harsh Saxena·September 27, 2024AI & ML 
We want to make abundantly clear: our free plan is here to stay, and we reaffirmed that commitment this week with 15 releases across our product portfolio that make the Free plan even better.

We’ve been working on something new — a platform for running containers across Cloudflare’s network. We already use it in production, for AI inference and more. Today we want to share an early look at how it’s built, why we built it, and how we use it ourselves.
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Brendan Irvine Broque, Thomas·September 27, 2024AI & ML 
To celebrate Builder Day 2024, we’re shipping 18 updates inspired by direct feedback from developers building on Cloudflare. This includes new capabilities, like running evals with AI Gateway, beta products like Queues and Vectorize graduating to GA, massive speed improvements to KV and Workers AI, pricing simplifications, and bringing key features from Pages into Workers.

Cloudflare’s Startup Program now offers up to $250,000 in credits for companies building on our Developer Platform. The program relaunch uses clear and predictable credits so that you can easily see how usage impacts future pricing.
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Christopher Rotas, Melissa Kargiannakis·September 26, 2024Engineering 
Today, we’re announcing up to 3x faster KV hot reads, with all KV operations faster by up to 20ms. And we want to pull back the curtain and show you how we did it.

Traditional cloud storage is inherently slow because it is accessed over a network and must synchronize many clients. But what if we could instead put your application code deep into the storage layer, such that your code runs where the data is stored? Durable Objects with SQLite do just that.

Whether you want the fastest inference at the edge, optimized AI workflows, or vector database-powered RAG, we’re excited to help you harness the full potential of AI and get started on building with Cloudflare.
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Michelle, Kathy·September 26, 2024Databases 
With a new generation of data center accelerator hardware and using optimization techniques such as KV cache compression and speculative decoding, we’ve made large language model (LLM) inference lightning-fast on the Cloudflare Workers AI platform.

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 for Families.
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Kelly May Johnston, Morgan Steffen·September 24, 2024Networking 
Cloudflare is now verifying WhatsApp’s Key Transparency audit proofs to ensure the security of end-to-end encrypted messaging conversations without having to manually check QR codes. We are publishing the results of the proof verification to https://dash.key-transparency.cloudflare.com for independent researchers and security experts to compare against WhatsApp’s. Cloudflare does not have access t
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Thibault, Mari·September 24, 2024Security 
Cloudflare customers on any plan can now audit and control how AI models access the content on their site.

As the Internet evolves, Turnstile does too. Introducing Ephemeral IDs — a new dimension in detecting fraudulent activity, bot or human, that links behavior to a specific client instead of an IP address. This makes Turnstile better for everyone, everywhere.

Since June 2021, we’ve been measuring and ranking our network performance against the top global networks in the world. We use this data to improve our performance, and to share the results of those initiatives. In this post, we’re going to share with you how network performance has changed since our last post in March 2024, and discuss the tools and processes we are using to assess network perfor

Cloudflare launched on September 27, 2010. This week we celebrate our fourteenth birthday
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Matthew Prince, Michelle Zatlyn·September 22, 2024Engineering 
Cloudflare’s Capacity Planning team discusses planning for “what-if” type scenarios, and how they’ve introduced a new “Scenario Planner” system to quickly model hypothetical future changes

On September 17, 2024, during planned routine maintenance, Cloudflare stopped announcing 15 IPv4 prefixes, affecting some Business plan websites for approximately one hour. During this time, IPv4 traffic for these customers would not have reached Cloudflare and users attempting to connect to websites using addresses within those prefixes would have received errors.

Chrome and Mozilla will stop trusting Entrust’s public TLS certificates issued after November 2024 due to concerns about Entrust’s compliance with security standards. In response, Entrust is partnering with SSL.com to continue providing trusted certificates. Cloudflare will support SSL.com as a CA, simplifying certificate management for customers using Entrust by automating issuance and renewals.

At Cloudflare, we protect customer APIs from abuse. This is no easy task, as abusive traffic can take different forms, from giant DDoS attacks to low-and-slow credential stuffing campaigns. We now address this challenge in a new way: by looking outside typical volumetric measures and using statistical machine learning to find important API client request sequences.
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Peter Foster·September 12, 2024Security 
This post explains how our integrations with CrowdStrike Falcon® Next-Gen SIEM allow customers to identify and investigate risky user behavior and analyze data combined with other log sources to uncover hidden threats.
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Corey Mahan, Andrew Meyer·September 11, 2024Security 
See how the first 2024 US presidential debate between Kamala Harris and Donald Trump influenced Internet traffic patterns compared to the Biden-Trump debate. We also review email trends and observed attack activity.

Pingora handles 35M+ requests per second, so saving a few microseconds per request can translate to thousands of dollars saved on computing costs. In this post, we share how we freed up over 500 CPU cores by optimizing one function and announce trie-hard, the open source crate that we created to do it.

Workers now supports more NPM packages and Node.js APIs using an overhauled hybrid compatibility layer.

New TCP resets and timeouts dataset on Cloudflare Radar surfaces connection tampering, scanning, DoS attacks, and more.

Cloudflare brings visibility to the practice of connection tampering as observed from our global network.
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Ram Sundara Raman, Luke·September 5, 2024Networking 
On September 3, 2024, the White House published a report on Internet routing security. We’ll talk about what that means and how you can help.
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Mike Conlow, Emily Music·September 2, 2024Security 
This analysis highlights the 2024 Democratic National Convention’s impact on Internet traffic and security, with spikes in interest for sites related to Kamala Harris and the Democrats, as well as news sites, plus pre-convention attacks on political organizations.

We’re excited to announce wildcard support across our Ruleset Engine-based products and our open-source wildcard crate in Rust. Configuring rules has never been easier, with powerful pattern matching enabling simple and flexible URL redirects and beyond for users on all plans.

NIST has published the first cryptographic standards for protecting against attacks from quantum computers. Learn what this means for you and your organization.