Cloudy Summarizations of Email Detections: Beta Announcement

Background

Organizations face continuous threats from phishing, business email compromise (BEC), and other advanced email attacks. Attackers adapt their tactics daily, forcing defenders to move just as quickly to keep inboxes safe.

Cloudflare’s visibility across a large portion of the Internet gives us an unparalleled view of malicious campaigns. We process billions of email threat signals every day, feeding them into multiple AI and machine learning models. This lets our detection team create and deploy new rules at high speed, blocking malicious and unwanted emails before they reach the inbox.

But rapid protection introduces a new challenge: making sure security teams understand exactly what we blocked — and why.

The Challenge

Cloudflare’s fast-moving detection pipeline is one of our greatest strengths — but it also creates a communication gap for customers. Every day, our detection analysts publish new rules to block phishing, BEC, and other unwanted messages. These rules often blend signals from multiple AI and machine learning models, each looking at different aspects of a message like its content, headers, links, attachments, and sender reputation.

While this layered approach catches threats early, SOC teams don’t always have insight into the specific combination of factors that triggered a Continue reading

Cloudflare is the best place to build realtime voice agents

The way we interact with AI is fundamentally changing. While text-based interfaces like ChatGPT have shown us what's possible, in terms of interaction, it’s only the beginning. Humans communicate not only by texting, but also talking — we show things, we interrupt and clarify in real-time. Voice AI brings these natural interaction patterns to our applications.

Today, we're excited to announce new capabilities that make it easier than ever to build real-time, voice-enabled AI applications on Cloudflare's global network. These new features create a complete platform for developers building the next generation of conversational AI experiences or can function as building blocks for more advanced AI agents running across platforms.

We're launching:

  • Cloudflare Realtime Agents - A runtime for orchestrating voice AI pipelines at the edge

  • Pipe raw WebRTC audio as PCM in Workers - You can now connect WebRTC audio directly to your AI models or existing complex media pipelines already built on 

  • Workers AI WebSocket support - Realtime AI inference with models like PipeCat's smart-turn-v2

  • Deepgram on Workers AI - Speech-to-text and text-to-speech running in over 330 cities worldwide

Why realtime AI matters now

Today, building voice AI applications is hard. You need to coordinate multiple services such Continue reading

Troubleshooting network connectivity and performance with Cloudflare AI

Monitoring a corporate network and troubleshooting any performance issues across that network is a hard problem, and it has become increasingly complex over time. Imagine that you’re maintaining a corporate network, and you get the dreaded IT ticket. An executive is having a performance issue with an application, and they want you to look into it. The ticket doesn’t have a lot of details. It simply says: “Our internal documentation is taking forever to load. PLS FIX NOW”.

In the early days of IT, a corporate network was built on-premises. It provided network connectivity between employees that worked in person and a variety of corporate applications that were hosted locally.

The shift to cloud environments, the rise of SaaS applications, and a “work from anywhere” model has made IT environments significantly more complex in the past few years. Today, it’s hard to know if a performance issue is the result of:

  • An employee’s device

  • Their home or corporate wifi

  • The corporate network

  • A cloud network hosting a SaaS app

  • An intermediary ISP

A performance ticket submitted by an employee might even be a combination of multiple performance issues all wrapped together into one nasty problem.

Cloudflare built Cloudflare One, Continue reading

The crawl-to-click gap: Cloudflare data on AI bots, training, and referrals

In 2025, Generative AI is reshaping how people and companies use the Internet. Search engines once drove traffic to content creators through links. Now, AI training crawlers — the engines behind commonly-used LLMs — are consuming vast amounts of web data, while sending far fewer users back. We covered this shift, along with related trends and Cloudflare features (like pay per crawl) in early July. Studies from Pew Research Center (1, 2) and Authoritas already point to AI overviews — Google’s new AI-generated summaries shown at the top of search results — contributing to sharp declines in news website traffic. For a news site, this means lots of bot hits, but far fewer real readers clicking through — which in turn means fewer people clicking on ads or chances to convert to subscriptions.

Cloudflare's data shows the same pattern. Crawling by search engines and AI services surged in the first half of 2025 — up 24% year-over-year in June — before slowing to just 4% year-over-year growth in July. How is the space evolving? Which crawling purposes are most common, and how is that changing? Spoiler: training-related crawling is leading the way. In this post, we track Continue reading

Running Palo Alto Firewalls on Proxmox

Running Palo Alto Firewalls on Proxmox

If you follow me or my blog, you may know that I moved my homelab to Proxmox. Even though I already have a physical Palo Alto firewall, I also needed to set up a Palo Alto VM. After some reading and research, and with the help of a great guide I found, I managed to get Palo Alto running on Proxmox. I thought it would be useful to write a post about it for anyone else trying to do the same.

At a high level, you need to download the Palo Alto QCOW image. I’m using PAN-OS 11.2.5 and downloaded the image called PA-VM-KVM-11.2.5.qcow2. You will also need multiple network interfaces on Proxmox. With Palo Alto, you need at least two to begin with, one for management and one for data.

When I say Proxmox interfaces or NICs, I mean the virtual network adapters that you can assign to your VM. These map to your physical or virtual bridges on the Proxmox host, and they let you connect the firewall VM to different parts of your network.

Running Palo Alto Firewalls on Proxmox
I have two linux bridges

The first step is to copy the Palo Alto QCOW image over to Continue reading

N4N037: IPsec Basics

It’s time to talk crypto. No, not the Bitcoin kind. Ethan and Holly introduce the basics of IPsec, the protocol that authenticates and encrypts traffic between endpoints. They discuss what it is, how it provides trustworthiness and secrecy to IP traffic, and common use cases. They review the different types of IPsec protocols and modes,... Read more »

A deeper look at AI crawlers: breaking down traffic by purpose and industry

Search platforms historically crawled web sites with the implicit promise that, as the sites showed up in the results for relevant searches, they would send traffic on to those sites — in turn leading to ad revenue for the publisher. This model worked fairly well for several decades, with a whole industry emerging around optimizing content for optimal placement in search results. It led to higher click-through rates, more eyeballs for publishers, and, ideally, more ad revenue. However, the emergence of AI platforms over the last several years, and the incorporation of AI "overviews" into classic search platforms, has turned the model on its head. When users turn to these AI platforms with queries that used to go to search engines, they often won't click through to the original source site once an answer is provided — and that assumes that a link to the source is provided at all! No clickthrough, no eyeballs, and no ad revenue. 

To provide a perspective on the scope of this problem, Radar launched crawl/refer ratios on July 1, based on traffic seen across our whole customer base. These ratios effectively compare the number of crawling requests for HTML pages from the crawler Continue reading

The age of agents: cryptographically recognizing agent traffic

On the surface, the goal of handling bot traffic is clear: keep malicious bots away, while letting through the helpful ones. Some bots are evidently malicious — such as mass price scrapers or those testing stolen credit cards. Others are helpful, like the bots that index your website. Cloudflare has segmented this second category of helpful bot traffic through our verified bots program, vetting and validating bots that are transparent about who they are and what they do.

Today, the rise of agents has transformed how we interact with the Internet, often blurring the distinctions between benign and malicious bot actors. Bots are no longer directed only by the bot owners, but also by individual end users to act on their behalf. These bots directed by end users are often working in ways that website owners want to allow, such as planning a trip, ordering food, or making a purchase.

Our customers have asked us for easier, more granular ways to ensure specific bots, crawlers, and agents can reach their websites, while continuing to block bad actors. That’s why we’re excited to introduce signed agents, an extension of our verified bots program that gives a new bot Continue reading

Make Your Website Conversational for People and Agents with NLWeb and AutoRAG

Publishers and content creators have historically relied on traditional keyword-based search to help users navigate their website’s content. However, traditional search is built on outdated assumptions: users type in keywords to indicate intent, and the site returns a list of links for the most relevant results. It’s up to the visitor to click around, skim pages, and piece together the answer they’re looking for. 

AI has reset expectations and that paradigm is breaking: how we search for information has fundamentally changed.

Your New Type of Visitors

Users no longer want to search websites the old way. They’re used to interacting with AI systems like Copilot, Claude, and ChatGPT, where they can simply ask a question and get an answer. We’ve moved from search engines to answer engines. 

At the same time, websites now have a new class of visitors, AI agents. Agents face the same pain with keyword search: they have to issue keyword queries, click through links, and scrape pages to piece together answers. But they also need more: a structured way to ask questions and get reliable answers across websites. This means that websites need a way to give the agents they trust controlled access, so Continue reading

The next step for content creators in working with AI bots: Introducing AI Crawl Control

Empowering content creators in the age of AI with smarter crawling controls and direct communication channels

Imagine you run a regional news site. Last month an AI bot scraped 3 years of archives in minutes — with no payment and little to no referral traffic. As a small company, you may struggle to get the AI company's attention for a licensing deal. Do you block all crawler traffic, or do you let them in and settle for the few referrals they send? 

It’s picking between two bad options.

Cloudflare wants to help break that stalemate. On July 1st of this year, we declared Content Independence Day based on a simple premise: creators deserve control of how their content is accessed and used. Today, we're taking the next step in that journey by releasing AI Crawl Control to general availability — giving content creators and AI crawlers an important new way to communicate.

AI Crawl Control goes GA

Today, we're rebranding our AI Audit tool as AI Crawl Control and moving it from beta to general availability. This reflects the tool's evolution from simple monitoring to detailed insights and control over how AI systems can access your content. 

The Continue reading

Evaluating image segmentation models for background removal for Images

Last week, we wrote about face cropping for Images, which runs an open-source face detection model in Workers AI to automatically crop images of people at scale.

It wasn’t too long ago when deploying AI workloads was prohibitively complex. Real-time inference previously required specialized (and costly) hardware, and we didn’t always have standard abstractions for deployment. We also didn’t always have Workers AI to enable developers — including ourselves — to ship AI features without this additional overhead.

And whether you’re skeptical or celebratory of AI, you’ve likely seen its explosive progression. New benchmark-breaking computational models are released every week. We now expect a fairly high degree of accuracy — the more important differentiators are how well a model fits within a product’s infrastructure and what developers do with its predictions.

This week, we’re introducing background removal for Images. This feature runs a dichotomous image segmentation model on Workers AI to isolate subjects in an image from their backgrounds. We took a controlled, deliberate approach to testing models for efficiency and accuracy.

Here’s how we evaluated various image segmentation models to develop background removal.

A primer on image segmentation

In computer vision, image segmentation is the process of splitting Continue reading

Network Automation Reality Check with William Collins

In early August, William Collins invited me to chat about a sarcastic comment I made about a specific automation tool I have a love-hate relationship with on LinkedIn.

We quickly agreed not to go (too deep) into tool-bashing. Instead, we discussed the eternal problems of network automation, from unhealthy obsession with tools to focus on point solutions while lacking the bigger picture or believing in vendor-delivered nirvana.

Listen to the podcast

IBM And AMD Tag Team On Hybrid Classical-Quantum Supercomputers

As we talked about a decade ago in the wake of launching The Next Platform, quantum computers – at least the fault tolerant ones being built by IBM, Google, Rigetti, and a few others – need a massive amount of traditional Von Neumann compute to help maintain their state, assist with qubit error correction, and assist with their computations. …

IBM And AMD Tag Team On Hybrid Classical-Quantum Supercomputers was written by Timothy Prickett Morgan at The Next Platform.

AI Gateway now gives you access to your favorite AI models, dynamic routing and more — through just one endpoint

Getting the observability you need is challenging enough when the code is deterministic, but AI presents a new challenge — a core part of your user’s experience now relies on a non-deterministic engine that provides unpredictable outputs. On top of that, there are many factors that can influence the results: the model, the system prompt. And on top of that, you still have to worry about performance, reliability, and costs. 

Solving performance, reliability and observability challenges is exactly what Cloudflare was built for, and two years ago, with the introduction of AI Gateway, we wanted to extend to our users the same levels of control in the age of AI. 

Today, we’re excited to announce several features to make building AI applications easier and more manageable: unified billing, secure key storage, dynamic routing, security controls with Data Loss Prevention (DLP). This means that AI Gateway becomes your go-to place to control costs and API keys, route between different models and providers, and manage your AI traffic. Check out our new AI Gateway landing page for more information at a glance.

Connect to all your favorite AI providers

When using an AI provider, you typically have to sign up for Continue reading

State-of-the-art image generation Leonardo models and text-to-speech Deepgram models now available in Workers AI

When we first launched Workers AI, we made a bet that AI models would get faster and smaller. We built our infrastructure around this hypothesis, adding specialized GPUs to our datacenters around the world that can serve inference to users as fast as possible. We created our platform to be as general as possible, but we also identified niche use cases that fit our infrastructure well, such as low-latency image generation or real-time audio voice agents. To lean in on those use cases, we’re bringing on some new models that will help make it easier to develop for these applications.

Today, we’re excited to announce that we are expanding our model catalog to include closed-source partner models that fit this use case. We’ve partnered with Leonardo.Ai and Deepgram to bring their latest and greatest models to Workers AI, hosted on Cloudflare’s infrastructure. Leonardo and Deepgram both have models with a great speed-to-performance ratio that suit the infrastructure of Workers AI. We’re starting off with these great partners — but expect to expand our catalog to other partner models as well.

The benefits of using these models on Workers AI is that we don’t only have a standalone inference Continue reading

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