DDoS threat report for 2023 Q1
2023-04-11
Threat actors kicked off 2023 with a bang. The start of the year was characterized by a series of hacktivist campaigns against Western targets, and record-breaking hyper volumetric attacks...
Protect your domain with Zone Holds
2023-04-06
Protect against accidental additions of your domain, subdomain, or custom hostnames in other accounts with Zone Holds. Available by default for all enterprise customers...
Cloudflare’s view of the Virgin Media outage in the UK
2023-04-04
UK ISP Virgin Media (AS5089) experienced several outages on April 4, 2023. We examine the impact to Internet traffic, availability of Virgin Media web properties, and how BGP activity may provide insights into the underlying cause...
Oxy: the journey of graceful restarts
2023-04-04
Deploying new versions of long-lived server software while maintaining a reliable experience is challenging. For oxy, we established several development and operational patterns to increase reliability and reduce friction in deployments...
mTLS client certificate revocation vulnerability with TLS Session Resumption
2023-04-03
This blog post outlines the root cause analysis and solution for a bug found in Cloudflare’s mTLS implementation...
Introducing Rollbacks for Workers Deployments
2023-04-03
Deployment rollbacks provide users the ability to quickly visualize and deploy past versions of their Workers, providing even more confidence in the deployment pipeline...
Upgrading one of the oldest components in Cloudflare’s software stack
2023-03-31
Engineers at Cloudflare have improved the release procedure of our largest edge proxy server. The improved process allows us to significantly decrease the amount of memory used during the version upgrade. As a result, we can deploy code faster and more reliably...
From IP packets to HTTP: the many faces of our Oxy framework
2023-03-30
We have recently introduced Oxy, our Rust-based framework for proxies powering many Cloudflare services and products. Today, we will explain why and how it spans various layers of the OSI model, by handling directly raw IP packets, TCP connections and UDP payloads...
Helping protect personal information in the cloud, all across the world
2023-03-30
Helping protect personal information in the cloud, all across the world...
Killnet and AnonymousSudan DDoS attack Australian university websites, and threaten more attacks — here’s what to do about it
2023-03-29
Over the past 24 hours, Cloudflare has observed HTTP DDoS attacks targeting university websites in Australia. Universities were the first of several groups publicly targeted by the pro-Russian hacker group Killnet and their affiliate AnonymousSudan, as revealed in a recent Telegram post...
Cloudflare’s commitment to the 2023 Summit for Democracy
2023-03-28
Cloudflare is proud to participate in and contribute commitments to the 2023 Summit Summit for Democracy because we believe that everyone should have access to an Internet that is faster, more reliable, more private, and more secure...
Introducing our first Authorized Service Delivery Partners for Cloudflare One
2023-03-27
Since launch, Authorized Services Delivery Partner track is having a notable impact and now we are thrilled to announce the first partners who have achieved the designation...
Use the language of your choice with Pages Functions via WebAssembly
2023-03-24
Today Pages is excited to offer support for WebAssembly when writing a Pages Function...
Node.js compatibility for Cloudflare Workers – starting with Async Context Tracking, EventEmitter, Buffer, assert, and util
2023-03-23
Over the coming months, Cloudflare Workers will start to roll out built-in compatibility with Node.js core APIs as part of an effort to support increased compatibility across JavaScript runtimes...
Out now! Auto-renew TLS certificates with DCV Delegation
2023-03-23
Cloudflare will now allow customers that are managing DNS externally to auto-renew certificates through DCV Delegation...
The quantum state of a TCP port
2023-03-20
If I navigate to https://blog.cloudflare.com/, my browser will connect to a remote TCP address from the local IP address assigned to my machine, and a randomly chosen local TCP port. What happens if I then decide to head to another site?...
Everything you might have missed during Security Week 2023
2023-03-20
Learn how Cloudflare made it easier to shift from protecting applications, to protecting employees, and making sure they are protected everywhere during Security Week 2023...
Wildcard and multi-domain support in Cloudflare Access
2023-03-18
We are thrilled to announce the full support of wildcard and multi-hostname application definitions in Cloudflare Access...
Account Security Analytics and Events: better visibility over all domains
2023-03-18
Revealing Account Security Analytics and Events, new eyes on your account in Cloudflare dashboard to give holistic visibility. No matter how many zones you manage, they are all there!...
One-click ISO 27001 certified deployment of Regional Services in the EU
2023-03-18
Cloudflare announces one-click ISO certified region, a super easy way for customers to limit where traffic is serviced to ISO 27001 certified data centers inside the European Union...
