The Cloudflare Blog

We’re proud to collaborate with CyberPeace Institute by powering its latest initiative, the CyberPeace Tracer, a platform that enables civil society organizations to proactively report cyber threats.

The Linux kernel can produce a hung task warning. Searching the Internet and the kernel docs, you can find a brief explanation that the process is stuck in the uninterruptible state.

We’re excited to announce the beta release of Automatic Audit Logs, offering greater transparency and control.

This blog examines how diverse cultural celebrations — from Western Christmas to Orthodox and Lunar New Year festivities — shape global Internet traffic.

Cloudflare was recently contacted by researchers who discovered a broadcast amplification vulnerability through their QUIC Internet measurement research. We've implemented a mitigation.

Cloudflare patched a Mutual TLS (mTLS) vulnerability (CVE-2025-23419) reported via its Bug Bounty Program. The flaw in session resumption allowed client certificates to authenticate across different

On Thursday, February 6, 2025, we experienced an outage with our object storage service (R2) and products that rely on it. Here's what happened and what we're doing to fix this going forward.

Cloudflare achieves ENS certification, and intends to pursue FedRAMP High and IRAP.

Today, we are launching a new dedicated “AI Insights” page on Cloudflare Radar that incorporates this graph and builds on it with additional metrics.

Media and journalism companies can now build end-to-end workflows that support Content Credentials by using Cloudflare Images.

After a rather busy third quarter, the fourth quarter of 2024 saw significantly fewer Internet disruptions.

Cloudflare is the first organization globally to announce having been successfully audited against the ‘Global Cross-Border Privacy Rules’ system and ‘Global Privacy Recognition for Processors’.

January 27 marks the International Holocaust Remembrance Day — a solemn occasion to honor the memory of the six million Jews who perished in the Holocaust, along with countless others who fell victim

Here we explain how we made our data pipeline scale to 700 million events per second while becoming more resilient than ever before. We share some math behind our approach and some of the designs of

2024 ended with a bang. Cloudflare mitigated another record-breaking DDoS attack peaking at 5.6 Tbps.

On January 19, 2025, ByteDance suspended TikTok and related apps for US users. We examine the 14-hour traffic plunge, recovery near Donald Trump’s inauguration.

On January 19, 2025, ByteDance shut down access to TikTok and other owned/operated apps for US users, causing an 85% traffic plunge and a rapid shift to alternatives like RedNote.

Cloudflare strengthens its commitment to cybersecurity by joining CISA's "Secure by Design" pledge. In line with this, we're reducing the prevalence of vulnerability classes across our products.

At Cloudflare, we treat developer content like an open source product. This collaborative approach enables global contributions to enhance quality and relevance for a wide range of users. This year,

Multi-Path TCP (MPTCP) leverages multiple network interfaces, like Wi-Fi and cellular, to provide seamless mobility for more reliable connectivity. While promising, MPTCP is still in its early stages,