I help invent the future. CTO @cloudflare. Angel investor.
Austin, TX
- Tweets 5,382
- Following 2,061
- Followers 39,719
- Likes 10,196
We let down our customers at @Cloudflare today. Our Workers KV service failed and the downstream products that rely on that service had outages of their own. We will publish a full postmortem soon.
I know that these kinds of incidents have real and serious impact for teams around the world as they do their work and serve their own customers.
Beyond the specifics of this incident, the postmortem will go into detail about how we are removing this failure case. We will do everything we can to make this right going forward and I apologize for the problems caused today.
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Triangle Man is a decent front end designer, but he knows nothing about networks. He keeps having to make this point because he has built Vercel on top of AWS which charges him for bandwidth so he has to pass that cost onto his customers or he'll go bankrupt. Cloudflare, on the other hand, built our own network so bandwidth is largely free for us. The best judge of the 'quality' of bandwidth is how peered an organization is. Here's a list of the most peered networks in the world: bgp.he.net/report/exchanges#…. Amazon is very good with about 600 networks it peers with, but Cloudflare has more than twice that number. That means that the default bandwidth you get for free from Cloudflare is actually more likely to be fast and reliable than the Amazon bandwidth you pay for from Vercel
The Cloudflare strategy:
▪️Tell everyone on Twitter that bandwidth is free and unlimited, AwS BaD!
▪️Rename "bandwidth" to "Argo", because the 'free' one is low quality
▪️Create the most evil, non-transparent pricing page in history. Hide real bandwidth price under a tooltip 😂
▪️ When this ruse runs out, hope that they locked you in with Workers and Durable Objects
▪️ Sponsor lots of X accounts to repeat the free & unlimited bs. Hope that enough startups fall into Enterprise trap.
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. @Facebook DNS and other services are down. It appears their BGP routes have been withdrawn from the internet. @Cloudflare 1.1.1.1 started seeing high failure in last 20mins.
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Why hasn’t @Microsoft integrated @LinkedIn and @github? It would become the ultimate recruiting tool.
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Team had a lot of fun making workers faster. Big thank you to @theo for pushing us to be better!
Cat's out of the bag. Cloudflare is ~3x faster for many workloads due to a series of fixes they've shipped in the last 5 days
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Sorry @garrytan. The open internet needs standards to remain viable. Would you have same position for Reddit? This pushes forward a) a transparent, open standard where we help our customers verify the signatures and b) gives the website owner full control - they make the decisions on what to allow/disallow. Some people want agents to interact with their site - others want more control. We think it's up to the site owner to decide. We welcome conversation and debate for how to make it work for all sides.
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After 13 amazing years working alongside @6a6763, who recently announced his retirement, I’m honored to step into the role of CTO. When I started at @Cloudflare , we were a team of less than 30. Now, we’re over 4,000 strong all on a mission to help build a better Internet.
Three chapters at Cloudflare: Programmer to CTO to Board of Directors. cfl.re/4iEt6kF
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I have been @Cloudflare for almost 10yrs and never been more excited for what we have planned for 2022. The time join is now! If you want to work on serverless compute (v8, wasm, etc) , distributed data, IoT, crazy anycast network problems and more.... pls reach out. DMs open.
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I want to know what our India customers want?
Less than a month away from @Cloudflare Birthday Week! What should we announce?
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So, to summarize, the Free bandwidth on Cloudflare is faster and more reliable than the Paid bandwidth on Vercel because Cloudflare is more peered than AWS and Vercel relies on AWS. Argo is different from anything you can get at AWS or Vercel and only makes sense for the most performance sensitive applications. And the reason that Cloudflare can give away bandwidth is because we're good at network engineering. But we're also know what we've not historically been great at: flashy UIs. Good thing that we have tons of applicants from Vercel and other great organizations with design DNA so we will be good at that too soon.
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After Facebook gets network back up I expect a long period of instability. Rebooting a distributed system of this size is hard. They will have cold caches and systems that need other systems to bootstrap. #hugops
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I am headed to Bengaluru in a little over a month. My first time in India! Who should I meet? Which founders and CTOs?
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Heading to India tomorrow for a week! I’ve got one free day to explore Bangalore. What are the must see sites?
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We have tracked this down. It was a bug in our UI that under certain rare circumstances showed a feature on when it wasn’t. It was NEVER turned on for ycombinator, but understand how @garrytan would have thought it was and been pissed. I’ve reached out to him to explain but haven’t heard back. We’ve resolved the bug and appreciate him flagging it.
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Argo is a different product and something that Vercel doesn't have an equivalent for. It's powered by Cloudflare's private backbone and in most cases never touches the public Internet until its last hop. For 95% of Cloudflare customers, they don't need Argo. But for those that need a global private backbone and the speed and reliability it provides, then they can opt to use Argo. And, in fact, the AWS sales team regularly recommends their own clients use Argo because it's something they don't have the ability to provide themselves.
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And have been avoiding replying because prefer to focus internally but everyone has a breaking point for BS.
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I have spent 14 years helping to build a better Internet @Cloudflare. I say helping because no company can do it alone. Real progress comes from working with others who share this spirit.
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. @Cloudflare is your
Security Cloud
Performance Cloud
Network Cloud
Developer Cloud
Media Cloud
Realtime Cloud
Data Cloud
AI Cloud
Agent Cloud
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What should we build (or improve) next @Cloudflare?
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To save other people time and money it’s much easier to just flip the flag on Turnstile to be invisible.
@Cloudflare gives you choice to decide what is best for your users with 3 modes: Managed, Non-Interactive, and Invisible.
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In 2012 @Cloudflare data plane was about 10,000 lines in cfcheck.php + lots of nginx conf. No php left today in the request path. It went from php -> lua -> rust + workers
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We decided to keep the good vibes going with a new beat from @Cloudflare employee @adamfschwartz
introducing the new Cloudflare ☁️⚡
bold new look, same global speed
powering 20% of the internet – yours by default
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Can @dhh make 2026 the year of the linux desktop?
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If you are saving money now that you left 🔺 and migrated to Coolify consider sponsoring @heyandras
A few people asked me if I got tons of customers due to the drama.
To be fair, I have no idea and tbh, I don't care. 😅
I only care that we improve Coolify everyday, so it will be much better and easier to use.
Since I am ramen profitable ($2k/m), I check the stats 2-3 times a month, mostly the churn rate (went from 30% to 12%) and the cancellation reasons in Stripe.
The number of self-hosted instances went up a bit.
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We have NEVER sponsored an X account that is your playbook. Cut it out with the lies.
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I have not been this excited to work @Cloudflare ever. What we have built and plan to ship this year is going to blow everyone away.
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Big day for @Cloudflare as we launch our newest compute primitive, Containers! A bit of history: In 2020, we acquired S2 Remote Browser tech and faced the challenge of migrating it from AWS to our edge. To run a Chromium-based browser securely, we split our team: half focused on the Remote Browser app, half built a robust, independent container platform to support it.
We knew some workloads needed to be close to users but didn’t fit our Workers isolate model. This platform became a game-changer, empowering dozens of internal teams to build features like Workers CI/CD, Browser Rendering, Key Transparency, Workers AI, and more.
But we kept asking: Is this the right primitive for our users? Workers remains the go-to for globally distributed, effortlessly scalable compute at a great price. Initially, many use cases we heard were for single-node webservers that didn’t need region earth. Then we got excited as users started asking for latency-sensitive, real-time applications and the ability to run agents close to the users they serve.
Cloudflare Containers are here to deliver for those high-performance, user-proximal workloads. Excited to see what you build with it!
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Ambitious, intelligent folks early in their careers: stop talking so much in meetings. Listen more. You were invited for a reason and should have nothing to prove.
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Today is my 10 year anniversary @Cloudflare. Pretty amazing ride and just getting started.
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Tired of waiting for @Cloudflare containers? We're prioritizing early access for users with the best use cases for Cloudflare Workers + containers. Reply or DM!
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Shout out to @DhravyaShah for the great idea!
💡Starting in January 2026, Cloudflare offices will be open on select days as free co-working spaces for eligible teams.
To qualify, be sure to enroll in Cloudflare for Startups if you haven't done so already. Come build, connect, and innovate in-person with your team. Locations will include: SF, AUS, LON, LIS
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. @Cloudflare free tiers have only ever added more value over 13+ years and no intention of changing. Free customers are part of our DNA and fuel our innovation flywheel. It is so integral to our business that it is discussed in detail in our S1 filing. sec.gov/Archives/edgar/data/…
Free tiers that developers are currently relying on:
Vercel
Netlify
GitHub/pages
CloudFlare
Supabase
Firebase
Neon
Turso
How screwed would you be if they all rugged the free tiers?
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Burning down the Node.js compat list!
We've implemented the node:http client and server APIs in Cloudflare Workers, allowing developers to migrate existing Node.js applications with minimal code changes. cfl.re/42kid14
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I don’t know why you share posts you discussed personally with me and know
aren’t accurate. Every company has different pricing strategies and everyone should use what makes sense for them. We also don’t charge for developer “seats”. No right answers.
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The level of actionable observability in @PlanetScale is unreal.
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This applies internally and externally. All new hires @Cloudflare have a final call with someone on exec team like @eastdakota, @zatlyn, and me hoping that after they start they'll will be comfortable to share both positive and negative feedback directly.
Every company needs a DM POC - someone high up who you can just DM the most obvious things and who shortcuts the PM hierarchy.
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We're not done making @theo benchmarks faster! Many changes, like this one we're upstreaming to @nextjs , will speed up web for everyone.
What makes Next.js slow? In cases like @theo's benchmark, it's because it's creating multiple React streams, parsing and rendering to JSON and HTML, reading the whole body along the way and doubling the payload. Next.js = 220ms, plain React streams the same thing in 27ms
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Less than a month away from @Cloudflare Birthday Week! What should we announce?
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We’re building the AI cloud
We’ve assembled all the primitives on top of our network
Now we’re adding the best team, and models to execute
Welcome @Replicate team
Big news: Replicate is joining Cloudflare.
Replicate's going to carry on as a distinct brand, and all that will happen is that it’s going to get way better: it’ll be faster, we’ll have more resources, and it’ll integrate with the rest of Cloudflare’s Developer Platform.
replicate.com/blog/replicate…
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Just challenged the @Cloudflare Turnstile team to cut p90 solve time by 75%.
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After getting to know Dillon over the past year I knew that I wanted to get an opportunity to work with him. His compassion for people and passion for building great products is unmatched. Excited to get to ship together!
life update...
very excited to share i'll be joining @cloudflare to work on the developer platform and workers!
the momentum and incredible work that the team has shipped over the past few months has been inspiring and exciting to watch. stoked to get to be a part of it
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Don’t wait! Use the only AI Cloud @Cloudflare that already gives you Workflows, Queues, Durable Objects, Sandboxes, Containers, Storage, Inference and AI Gateway running on the same machines that power 20% of the Internet!
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.@Cloudflare 2026 intern applications are open. DM an agent built on Cloudflare Workers to ensure your application is personally reviewed. Link in comments.
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Hiring reminder... My @Cloudflare teams are hiring for engineering, product, and developer relations. If you want to work on serverless, storage, video, distributed systems, databases, or AI please DM me!
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What are you building on @Cloudflare Workers Platform? Best replies get swag sent to them!
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I've been @Cloudflare for over 13 years ... and can confirm we have always 🚢🚢🚢. We have a few superpowers with our network and organizational setup that make it possible!
has @cloudflare (15 years old, public, 4k people) always been shipping things people want at this rapid rate, or is this some new phase of excellence? i’m quite curious how so, either way.
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Guess what @Cloudflare Sandboxes are powered by @bunjavascript! Some say “bespoke” JS runtimes are bad, but we believe diverse runtimes like @deno_land , Bun, & Workerd drive innovation. Imagine if the web stuck to one browser—we’d all be on Internet Explorer! 😅 Also, huge Node.js fans here, with Node.js TSC members on our team!
We're excited to introduce Cloudflare Sandboxes — the easiest way to run LLM generated code on demand.
Sandboxes make it easy to spin up new instances of containers (and soon Workers — stay tuned!!) to make it easy to spin up tens, hundreds, or thousands of code-running agents
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This was a @Cloudflare principle that we got away from and getting back here will make the platform better for everyone.
Over the next year Cloudflare will make nearly every feature we offer available to any customer who wants to buy and use it. cfl.re/4mzwgr1 #BirthdayWeek
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Built in Bangalore!
Introducing CallsKit ✨
An open source toolkit to build realtime call experiences using @CloudflareDev Realtime.
Has camera, mic, screen-share, chat, simulcast support.
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14+ years ago, when @Cloudflare launched majority of traffic was from humans. Today the majority is API traffic (machine-to-machine).
Tomorrow, AI agents are about to become the new users, and I predict they'll exceed human traffic soon.
@cloudflare workers are the perfect platform to build secure, fast, private agents: from API calls, Compute, Storage, AI inference, to Logs & observability... all in one global, efficient connectivity cloud
Build agents on a platform that:
→ Has all the pieces for you to build & iterate fast (from AI models, to vector DB, to durable execution)
→ Supports all the frameworks, incl @aisdk, @langchain and @OpenAI
→ Will scale & charge for what you use
developers.cloudflare.com/ag…
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Internal tools or VPN shouldn’t be an excuse. @Cloudflare are offering free use of our zero trust product and doing 30 min onboarding sessions. Happy to personally jump on Zoom with anybody IT to help
We're extending our offer to provide @Cloudflare for Teams (Access & Gateway) for free for 6 months to companies of all sizes. If we can assist people getting work done securely and efficiently while they work from home, then it's our duty to help. blog.cloudflare.com/cloudfla…
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. @leerob is class act. He DM with me yesterday to discuss how to better handle security issues with @nextjs in the future and plans for adding adapters to make it easier for @Netlify @Cloudflare support.
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Today is still the best time to join @Cloudflare
I’ve joined Cloudflare to build AI agents, and make it the best place for you to build yours!
Agents are going to be everywhere, and the team here is full of incredibly talented people building internet-scale infrastructure to make that happen. Stoked to be a part of the band 🕺
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I love big, audacious projects. @awesomekling’s @ladybirdbrowser, and @dhh's @OmarchyLinux are examples of entrenched areas that need diversity and new approaches.
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Better @Cloudflare integration
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We are trying to figure out what is going one with @Starlink. @Cloudflare seeing irregularities in their BGP advertisements, and a complete loss of traffic
Satellite #Internet provider @Starlink is currently experiencing a network-wide outage. They have acknowledged the outage, but have not yet provided information on a cause.
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An open Internet depends on a model that incentivizes great content to continue to be published. Proud to partner with some of the best publishers and AI services to launch a new model built that rewards high-quality material in a new AI era.
Cloudflare is making it easier for publishers and content creators of all sizes to prevent their content from being scraped for AI training. Here's how: cfl.re/4l2cXqp
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This has been a 7-year journey to making post-quantum cryptography safe to deploy at scale. Almost 30% of the top 100k sites are quantum safe because of @Cloudflare. Cloudflare's research team has been leading the push from standards to deployment.
ALT https://www.netmeister.org/blog/pqc-use-2025-09.html
Cloudflare automatically upgraded security for over 6M domains with Automatic SSL/TLS, ensuring safer connections to origins without customer effort. Now we’re extending this to post-quantum cryptography. cfl.re/3IhJ2wq #BirthdayWeek
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With so much interest in @Cloudflare this week I want to remind you that we have our Project Alexandria Open Source program with virtually no limits and most important we don’t kick you out after one year and make you pay! Link to apply in reply!
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We are not always perfect but over and over again @Cloudflare team responds to a crisis with transparency and follow through.
And as an added bonus the additional resiliency comes with speed.
Top = new first-party system
Bottom = old third-party system
Workers KV is Cloudflare's global key-value store. After the incident on June 12, we accelerated work to re-architect KV’s redundant storage backend, remove single points of failure, and make substantial improvements to KV’s p99 latency profile. cfl.re/4fs16Qp
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If you want to be a PM on @Cloudflare Workers platform please DM @ritakozlov @elithrar @williamallen @irvinebroque or anyone else on the team. We have a lot to ship 🚢 this year and need help making the platform delight developers everywhere!
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If you've been in the same role with the same manager for 2+ years, start exploring new opportunities in or out of your company. Leaders: If you're not refactoring your teams every few years, you're missing chances to grow talent & innovate.
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You can build anything on @Cloudflare and it is getting easier every day.
i just <3 cloudflare
was struggling to set up dashboards on AWS to track some metrics yesterday
took an hour to send everything to cloudflare workers analytics engine + built a custom ui with an llm
custom dashboard purpose-built for my exact problem -- done ✅
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Next week is a @Cloudflare developer Innovation Week! What should we announce?
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Just passed 13 years working @cloudflare , i can say with confidence i don’t recall a single dull day.
just about 7 years working at @stripe, i can say with confidence i don’t recall a single dull day.
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If you are running an internet facing Java server please get it behind a waf and patched! The log4j vulnerability is shellshock level bad. @Cloudflare team is deploying waf rules for our customers.
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Lots of new things to 🚢 @Cloudflare … My teams are hiring 20+ people this quarter. Please send help (or referrals). Need product managers and engineers! Roles open in Austin, SF, London, Lisbon, and remote.
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I need a setup like this that doesn’t require a desktop.
Cloudflare CTO made a good callout on something I should add to my blog and I managed to get it added, along with a new feature, while driving to Apple Hill, CA 2.5hrs out of SF
here's how 👇
1. my phone and office desktop pc are on the same tailscale, so i started by ssh'ing into that box
2. `tmux a - t personalsite` to bring up my dev session for it, then open pane 0 with Claude code
3. tell Claude to curl the wiki for public suffix and add a h3 section under the security h2 recommending users do it
but then, here's where it gets interesting!! i wanted to share the new section with Dane and therefore it was finally time to ship headings being clickable anchor links
i had Claude do it, but was worried they would look weird due to anchir tag styles applying and therefore wanted to see the changes locally.
now remember the code is running on my desktop in the office 2hrs away and I'm currently interacting with it via my phone
with vite Dev server, which Astro uses, you can add a "--host flag" to access it on the box externally, so I did that and started "yarn dev --host"
then grabbed the desktop's IP in tailscale, navigated to "<desktopip>: 4321" on my phone's browser, saw it was messed up like i suspected, had Claude fix it, commit push, and done!!
link with an anchor was summarily deployed to prod by CI and I shared with Dane 🫡
ALT Claude Code on the virtual private server.
ALT Blog About multi-tenant SSL termination
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Next week is a @Cloudflare developer Innovation Week! What should we announce?
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If one of your angel investors berates you into using their product, they aren't going to be there for you when times are hard. The first thing I tell founders I invest in is: always do what's best for your business, get advice, but go with your own gut.
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Yeah sure. @alexatallah can you switch credit to him.
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Around 11 years ago, one of our competitors would tell customers we were lying about our scale and pointed to it being impossible with so few employees.
Something I just told a founder: Stay as small as you can for as long as you can. People who come to visit your office should always be surprised that such an important company has so few employees.
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