Security | Threat Detection | Cyberattacks | DevSecOps | Compliance

Cloudflare Radar: New TLD Insights and Certificate Transparency

Nov 1, 2025 By Cloudflare In Cloudflare
André, who joined Cloudflare as an intern in Lisbon, Portugal, in 2024, explains how radar.cloudflare.com showcases trends in Internet traffic, protocol adoption, and security. He walks us through Radar’s new Top-Level Domain (TLD) insights, how the team uses DNS magnitude to measure domain popularity, and why certificate transparency is crucial for a safer web. The conversation also goes into outage monitoring, the Data Explorer and URL scanner tools, and how users around the world are finding surprising Internet trends — like the rise of Linux usage in France.
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cloudflare

Beyond IP lists: a registry format for bots and agents

Oct 30, 2025 By Thibault Meunier In Cloudflare
As bots and agents start cryptographically signing their requests, there is a growing need for website operators to learn public keys as they are setting up their service. I might be able to find the public key material for well-known fetchers and crawlers, but what about the next 1,000 or next 1,000,000? And how do I find their public key material in order to verify that they are who they say they are? This problem is called discovery.
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cloudflare

Anonymous credentials: rate-limiting bots and agents without compromising privacy

Oct 30, 2025 By Thibault Meunier In Cloudflare
The way we interact with the Internet is changing. Not long ago, ordering a pizza meant visiting a website, clicking through menus, and entering your payment details. Soon, you might just ask your phone to order a pizza that matches your preferences. A program on your device or on a remote server, which we call an AI agent, would visit the website and orchestrate the necessary steps on your behalf.
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cloudflare

Policy, privacy and post-quantum: anonymous credentials for everyone

Oct 30, 2025 By Lena Heimberger In Cloudflare
The Internet is in the midst of one of the most complex transitions in its history: the migration to post-quantum (PQ) cryptography. Making a system safe against quantum attackers isn't just a matter of replacing elliptic curves and RSA with PQ alternatives, such as ML-KEM and ML-DSA. These algorithms have higher costs than their classical counterparts, making them unsuitable as drop-in replacements in many situations.
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A Guide to Cloudflare Load Balancing Setup (Step-by-Step Walkthrough)

Oct 30, 2025 By Cloudflare In Cloudflare
Setting up Cloudflare Load Balancing (LB) made easy! In this in-depth tutorial, we walk you through the essential pre-activation steps for Cloudflare Load Balancing. From understanding the core concepts to configuring your initial pools and health checks, this video covers everything you need to know to get started. If you're looking to improve your website's uptime, latency, and availability, this is the place to start.
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fidelis security

Step-by-Step Guide to CNAPP Implementation: Securing Cloud-Native Applications

Oct 29, 2025 By Fidelis Security In Fidelis Security
Key Takeaways Achieving scalability and agility is one of the top goals for every organization. Cloud-native applications have become the lifesavers of these organizations across various industries to achieve this. But implementing these applications also comes with a few disadvantages. The main reasons are these applications are dynamic and prone to attacks. Traditional or legacy security tools won’t be enough to secure their dynamic, short-lived workloads.
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cloudflare

Defending QUIC from acknowledgement-based DDoS attacks

Oct 29, 2025 By Apoorv Kothari In Cloudflare
On April 10th, 2025 12:10 UTC, a security researcher notified Cloudflare of two vulnerabilities (CVE-2025-4820 and CVE-2025-4821) related to QUIC packet acknowledgement (ACK) handling, through our Public Bug Bounty program. These were DDoS vulnerabilities in the quiche library, and Cloudflare services that use it. quiche is Cloudflare's open-source implementation of QUIC protocol, which is the transport protocol behind HTTP/3.
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