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Cloudflare’s 2024 Transparency Reports - now live with new data and a new format

2025-02-28

Cloudflare’s 2024 Transparency Reports are now live — with new topics, new data points, and a new format, consistent with the EU’s Digital Services Act...

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Cloudflare’s 2024 Transparency Reports - now live with new data and a new format

Some TXT about, and A PTR to, new DNS insights on Cloudflare Radar

2025-02-27

1.1.1.1RadarDNSResolverDNSSECDoHTraffic

The new Cloudflare Radar DNS page provides increased visibility into aggregate traffic and usage trends seen by our 1.1.1.1 resolver...

Keep AI interactions secure and risk-free with Guardrails in AI Gateway

2025-02-26

AIDevelopersDeveloper PlatformAI GatewaySecurity

Deploy AI safely with built-in Guardrails in AI Gateway. Flag and block harmful or inappropriate content, protect personal data, and ensure compliance in real-time...

Making Cloudflare the best platform for building AI Agents

2025-02-25

AICloudflare WorkersDurable Objects

Today we’re excited to share a few announcements on how we’re making it even easier to build AI agents on Cloudflare....

Helping civil society monitor cyber attacks with the CyberPeaceTracer and Cloudflare Email Security

2025-02-17

ImpactSecurityProject Galileo

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....

Searching for the cause of hung tasks in the Linux kernel

2025-02-14

Deep DiveLinuxKernelMonitoring

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....

Automatic Audit Logs: new updates deliver increased transparency and accountability

2025-02-13

Audit LogsBeta

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

Offline celebrations: how Christmas, NYE, and Lunar New Year festivities shape online behavior

2025-02-11

Internet TrafficRadarTrendsChristmasNew Year

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

QUIC action: patching a broadcast address amplification vulnerability

2025-02-10

SecurityNetworkEdgeDDoSHTTP3Bug Bounty

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

Resolving a Mutual TLS session resumption vulnerability

2025-02-07

VulnerabilitiesWAFZero TrustSASETLSNetwork Services

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...

Cloudflare incident on February 6, 2025

2025-02-07

Post MortemOutageR2 Storage

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....

No hallucinations here: track the latest AI trends with expanded insights on Cloudflare Radar

2025-02-04

AIRadarBotsWorkers AI1.1.1.1Traffic

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

Preserving content provenance by integrating Content Credentials into Cloudflare Images

2025-02-03

Cloudflare ImagesImage ResizingImage Storage

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

A diversity of downtime: the Q4 2024 Internet disruption summary

2025-01-28

RadarInternet ShutdownInternet TrafficConsumer Services

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

Cloudflare meets new Global Cross-Border Privacy (CBPR) standards

2025-01-28

CertificationPrivacyComplianceSecurityPolicy & Legal

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’....

Cloudflare thwarts over 47 million cyberthreats against Jewish and Holocaust educational websites

2025-01-27

DDoSDDoS ReportsAttacksSecurityNetwork Services

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...

Over 700 million events/second: How we make sense of too much data

2025-01-27

BugsAnalyticsDataGraphQLSQLGoDeep DiveSampling

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 ...

Record-breaking 5.6 Tbps DDoS attack and global DDoS trends for 2024 Q4

2025-01-21

DDoSDDoS ReportsDDoS AlertsTrendsRadarMiraiAttacks

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

The fall and rise of TikTok (traffic)

2025-01-21

RadarInternet TrafficTrendsTikTok

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....