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Celso Martinho

@celso

πŸ‘Ά From when Mosaic took over Gopher 🏒 VP of Engineering @cloudflare.social πŸ•ΉοΈ Slightly addicted to retrocomputing

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10.05.2023
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Latest posts by Celso Martinho @celso

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Worldwide Overview | Cloudflare Radar Up to date global Internet trends and insights.

All of these features are now available at radar.cloudflare.com, complementing existing insights into Internet traffic, security and attacks, post-quantum encryption, bots, connection quality, Internet outages, routing, and more.

04.03.2026 13:55 πŸ‘ 1 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
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In Israel, Cloudflare Radar shows a clear jump in Internet traffic this morning as people followed the news. Traffic rose nearly 50% after 06:15 UTC compared with the previous week, a pattern typical during fast-moving events that draw nationwide attention.

28.02.2026 12:14 πŸ‘ 12 πŸ” 3 πŸ’¬ 1 πŸ“Œ 0

1 month later
4,500,000 monthly actives

01.03.2026 00:24 πŸ‘ 24 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
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Iran has now been largely offline for 18 hours, with an #Internet shutdown put into place following strikes by the US & Israel. However, small amounts of Web & DNS traffic are still getting through, and IPv4 routes remain available, suggesting some users and sites are allowlisted for access.

01.03.2026 01:20 πŸ‘ 19 πŸ” 17 πŸ’¬ 0 πŸ“Œ 0

Siiigh

28.02.2026 15:55 πŸ‘ 3 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
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Starting around 07:00 UTC, Iranian networks began withdrawing portions of their BGP routes. By 10:30 UTC, the amount of IPv4 space announced globally had fallen even further, a pattern consistent with a nationwide Internet shutdown (as seen in January 2026).

28.02.2026 12:08 πŸ‘ 16 πŸ” 3 πŸ’¬ 0 πŸ“Œ 0
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We deserve a better streams API for JavaScript This post explores some of the fundamental issues I see with Web streams and presents an alternative approach built around JavaScript language primitives that demonstrate something better is possible.

The Web streams API has become ubiquitous in JavaScript runtimes but was designed for a different era. Here's what a modern streaming API could (should?) look like. https://cfl.re/4rEMthX

27.02.2026 15:25 πŸ‘ 21 πŸ” 3 πŸ’¬ 1 πŸ“Œ 2

OpenCode's release cadence is wild and every single one makes noticeable improvements. Rare to see a tool that ships this fast without sacrificing quality. Genuinely gets better with every release.

26.02.2026 18:22 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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A nearly 100x surge in routing announcements from Hetzner Online at 21:00 UTC coincided with an observed ~50% drop in traffic from their network. Social media complaints also cite problems with #DNS.

25.02.2026 22:52 πŸ‘ 2 πŸ” 3 πŸ’¬ 0 πŸ“Œ 0

I also have a A1000 with an original kb, it’s beautiful.

25.02.2026 12:09 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Yes.

25.02.2026 00:05 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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Finally found one. Folks in the business know how rare these are.

24.02.2026 23:18 πŸ‘ 8 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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How we rebuilt Next.js with AI in one week One engineer used AI to rebuild Next.js on Vite in a week. vinext builds up to 4x faster, produces 57% smaller bundles, and deploys to Cloudflare Workers with a single command.

We built a new Next.js, on @vite.dev. Drop-in replacement. Builds 4x faster with @rolldown.rs.

24.02.2026 20:21 πŸ‘ 78 πŸ” 9 πŸ’¬ 3 πŸ“Œ 15
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We hid backdoors in ~40MB binaries and asked AI + Ghidra to find them - Quesma Blog BinaryAudit benchmarks AI agents using Ghidra to find backdoors in compiled binaries of real open-source servers, proxies, and network infrastructure.

quesma.com/blog/introdu...

22.02.2026 15:17 πŸ‘ 1 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
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It's 2026 and we're about to be treated to a magical ZX Spectrum games awards ceremony.

Tune in at 3pm!
www.youtube.com/live/y1RCSr6...

21.02.2026 12:50 πŸ‘ 11 πŸ” 3 πŸ’¬ 0 πŸ“Œ 0

Finally!!!

19.02.2026 00:16 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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I want my last Saturday back!

19.02.2026 00:00 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 1
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You can figure out the address space of a computer just by looking at a single decoder chip in its schematics.

17.02.2026 23:55 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Hamnet is, wow. Give it all the Oscars.

17.02.2026 00:37 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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RentAHuman.ai - AI Agents Hire Humans for Physical Tasks The marketplace where AI agents rent humans. MCP integration, REST API, flexible payments. Book humans for real-world tasks your AI can't do.

Now a joke but remind me in 2y. rentahuman.ai

16.02.2026 16:38 πŸ‘ 4 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

I didn’t see the stats lately, but is it just me or Bsky is quite active and more engaging these days?

14.02.2026 17:34 πŸ‘ 8 πŸ” 0 πŸ’¬ 2 πŸ“Œ 1

Whoa, Macau? I have questions.

13.02.2026 21:43 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
Node History - 2:361/9

I shared this at work just for fun all I got was πŸ€”s, ⁉️s and 🀷s; one person did get it. nodelist.fidonet.cc/node/2/361/9

12.02.2026 19:03 πŸ‘ 2 πŸ” 0 πŸ’¬ 3 πŸ“Œ 0
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Introducing Markdown for Agents Cloudflare's network supports real-time content conversion to markdown at the source.

This is a really nice new Cloudflare feature: on-the-fly markdown conversion. Tools like Claude Code send an "Accept: text/markdown" header when making web requests. If you enable this it, it will send these agents a markdown version of your page instead of the full HTML. Really good for docs.

12.02.2026 15:40 πŸ‘ 101 πŸ” 16 πŸ’¬ 7 πŸ“Œ 6
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Workers are no longer limited to 1000 subrequests Workers no longer have an explicit limit on subrequests per invocation, allowing for more fetch and service calls.

Big developers.cloudflare.com/changelog/20...

12.02.2026 11:44 πŸ‘ 5 πŸ” 1 πŸ’¬ 1 πŸ“Œ 0

Man, Fallout's "okey-dokey" is contagious, now I use it all the time.

10.02.2026 16:08 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

That’s one the problems, but the main one is that I need to stop buying classic computers out of impulse.

10.02.2026 11:50 πŸ‘ 2 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

I never owned an Atari when I was young, but had a friend who had a 2600 and I remember playing Pac-Man and other classics on it.

10.02.2026 11:49 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

The problem is that it seems I can’t stop adding retro classics to my collection.

10.02.2026 11:47 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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I may have a problem.

10.02.2026 01:54 πŸ‘ 12 πŸ” 0 πŸ’¬ 3 πŸ“Œ 0