The Cloudflare Blog

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.

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.

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.

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.

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.

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.

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

This summer, Cloudflare welcomed approximately 60 interns from all around the globe, on a mission to #HelpBuildABetterInternet. Join us as we dive into what we were able to accomplish and our experiences!

This summer, Cloudflare welcomed approximately 60 interns from all around the globe, on a mission to #HelpBuildABetterInternet. Join us as we dive into what we were able to accomplish and our experiences!

From the U.S. elections and geopolitical conflict to tens of millions in corporate dollars lost, phishing remains the root cause of cyber damages. Learn why a comprehensive solution is the best way to stay protected.

From the U.S. elections and geopolitical conflict to tens of millions in corporate dollars lost, phishing remains the root cause of cyber damages. Learn why a comprehensive solution is the best way to stay protected

Cloudflare Stream is an end-to-end solution for video encoding, storage, delivery, and playback, focused on simplifying all aspects of video for developers. Newly uploaded or ingested portrait videos will now automatically be processed in full HD quality