31
How Cloudflare blocked a monumental 7.3 Tbps DDoS attack
In mid-May 2025, blocked the largest DDoS attack ever recorded: a staggering 7.3 terabits per second (Tbps).
Cloudflare Blog
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Visit blog.cloudflare.com → RSS feedOn Hacker News Jun 2011 – Nov 2026
Networking & Internet 106Security & Privacy 101Infrastructure & DevOps 77Web & Frontend 75Systems & Performance 64Software Engineering 53
32
Cloudflare Pages: the best way to build JAMstack websites
Across multiple cultures around the world, this time of year is a time of celebration and sharing of gifts with the people we care the most about.
33
Workers AI: Serverless GPU-powered inference
We are excited to launch Workers AI - an AI inference as a service platform, empowering developers to run AI models with just a few lines of code, all powered by our global network of GPUs
34
Cloudflare Meerkat - Globally distributed consensus
Cloudflare Research is building a global consensus service called Meerkat that uses a new consensus algorithm called QuePaxa. We plan to use Meerkat to build a strongly consistent, fault-tolerant key-value store, and other applications.
35
Introducing Workers KV
In 1864 British computer pioneer Charles Babbage described the first key-value store to be used as part of his Analytical Engine.
36
Cloudflare launches Workers Unbound, next evolution of its serverless platform
Today, we are excited to announce the next phase of this with the launch of our new platform, Workers Unbound, without restrictive CPU limits in a private beta.
37
Cloudflare Sippy: Incrementally Migrate Data from AWS S3 to Reduce Egress Fees
Use Sippy to incrementally migrate data from S3 to R2 as it’s requested and avoid migration-specific egress fees
38
Today's Outage Post Mortem
This morning at 09:47 UTC CloudFlare effectively dropped off the Internet. The outage affected all of CloudFlare's services including DNS and any services that rely on our web proxy.
39
Major data center power failure (again): Cloudflare Code Orange tested
Just four months after a complete power outage at a critical data center we were hit with the exact same scenario. Here’s how we did this time, and what’s next
40
Cloudflare Calls
We are announcing Cloudflare Calls, a new product that lets developers build real-time audio and video apps
41
Workers Durable Objects Beta: A New Approach to Stateful Serverless
Durable Objects provide a truly serverless approach to storage and state: consistent, low-latency, distributed, yet effortless to maintain and scale. They also enable coordination and real-time collaboration between clients.
42
Cloudflare incident on August 21, 2025
On August 21, 2025, an influx of traffic directed toward clients hosted in AWS us-east-1 caused severe congestion on links between Cloudflare and us-east-1. In this post, we explain what the failure was, why it occurred, and what we’re doing to make sure this doesn’t happen again.
43
Cloudflare mitigates record-breaking 71M request-per-second DDoS attack
This was a weekend of record-breaking DDoS attacks. Over the weekend, Cloudflare detected and mitigated dozens of hyper-volumetric DDoS attacks. The majority of attacks peaked in the ballpark of 50-70 million requests per second (rps) with the largest exceeding 71 million rps
44
Servers for an Accelerated Future
We designed and built Cloudflare’s network to be able to grow capacity quickly and inexpensively; to allow every server, in every city, to run every service; and to allow us to shift customers and traffic across our network efficiently.
45
Workers Cache
We are launching Workers Cache, a regionally tiered cache that sits directly in front of your Worker entrypoints. Infinitely composable, configured via standard HTTP headers
46
Our container platform is in production. It has GPUs. Here's an early look
We’ve been working on something new — a platform for running containers across Cloudflare’s network. We already use it in production, for AI inference and more. Today we want to share an early look at how it’s built, why we built it, and how we use it ourselves.
47
A Tour Inside CloudFlare's Latest Generation Servers
CloudFlare operates at a significant scale, handling more than a trillion requests through our network every month.
48
Announcing AMP Real URL
The promise of the AMP (Accelerated Mobile Pages) project was that it would make the web, and, in particular, the mobile web, much more pleasant to surf. The AMP HTML framework was designed to make web pages load quickly.
49
Cloudflare outage on February 20, 2026
Cloudflare suffered a service outage on February 20, 2026. A subset of customers who use Cloudflare’s Bring Your Own IP (BYOIP) service saw their routes to the Internet withdrawn via Border Gateway Protocol (BGP).
50
Cloudflare blocks an almost 2 Tbps multi-vector DDoS attack
Earlier this week, Cloudflare automatically detected and mitigated a DDoS attack that peaked just below 2 Tbps — the largest we’ve seen to date.
51
Cloudflare Images Now Available to Everyone
Today, we are launching Cloudflare Images for all customers. Images provides a single product to store, resize and serve images. We built Cloudflare Images, so customers of all sizes can build a scalable and affordable image pipeline with a fraction of the effort.
52
How Cloudflare analyzes 1M DNS queries per second
On Friday, we announced DNS analytics for all Cloudflare customers. Because of our scale –– by the time you’ve finished reading this, Cloudflare DNS will have handled millions of DNS queries –– we had to be creative in our implementation.
53
Caching the uncacheable: CloudFlare's Railgun
CloudFlare recently rolled out a premium service called Railgun that's available to CloudFlare Business and Enterprise customers. Railgun is web optimization software that's designed to speed up the delivery of content that cannot be cached.
54
Cloudflare R2 IA storage tier
We’re excited to announce three new features for Cloudflare R2: event notifications, support for migrations from Google Cloud Storage, and an infrequent access storage tier
55
CloudFlare Is Now a Google Cloud Platform Technology Partner
We’re excited to announce that CloudFlare has just been named a Google Cloud Platform Technology Partner. So what does this mean?
56
Serverless Performance: Cloudflare Workers, Lambda and LambdaEdge
A few months ago we released a new way for people to run serverless Javascript called Cloudflare Workers. We believe Workers is the fastest way to execute serverless functions, but lets prove it.
57
The next chapter for Cloudflare Workers: open-source
As the first announcement of Platform Week, today Cloudflare is announcing the open sourcing of the Workers runtime under the Apache-2.0 license
58
Fearless SSH: Short-lived certificates bring Zero Trust to infrastructure
Access for Infrastructure, BastionZero’s integration into Cloudflare One, will enable organizations to apply Zero Trust controls to their servers, databases, Kubernetes clusters, and more. Today we’re announcing short-lived SSH access as the first available feature of this integration.
59
D1: Improvements to performance and scalability
We've been heads down iterating on D1, and we've just shipped a major new version that's substantially faster, more reliable, and introduces Time Travel: the ability to restore a D1 database to any point in time.
60
Introducing Pseudo IPv4
Today is June 6. For the last two years, the date has been celebrated as World IPv6 Day. CloudFlare has offered full IPv6 support as well as our IPv6-to-IPv4 gateway since 2012.