Seven government recall feeds, and what it takes to make them agree
Every developed market publishes its product recalls. The EU has Safety Gate, France runs RappelConso on top of it, the US splits the job across the C…
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Your Scraper Works Locally but Returns 403 on a Server. Here's Why.
Key takeaways A request is judged on many layers at once — IP reputation, TLS fingerprint, HTTP/2 shape, headers, and how the browser is driven — and …
When Your SPA Eats Your API Routes: Fixing the Cloudflare Worker vs React Router Conflict
This article was originally published on Jo4 Blog . My affiliate tracking links were returning the entire React app instead of a 302 redirect. Not a 4…
Edge vs. Endpoint Bot Blocking: A Developer's Guide to Cloudflare and Wordfence
Edge vs. Endpoint Bot Blocking: A Developer's Guide to Cloudflare and Wordfence The Real Cost of AI Bot Traffic on Your WordPress Stack If you're runn…
Every response promised a rate limit. Nothing enforced it.
One function in this site's Worker attaches security headers to every response it renders. Until yesterday two of them were RateLimit-Limit: 100 and R…
How I built a suite of self-destructing web tools on Cloudflare (solo, free tier)
Most cloud tools are built around saving things. But a lot of the time I don't want to save anything — I just want to hand something off for a few min…
Cloudflare Workers AI: Add a Free LLM to a Static Site, No Backend Needed
Quick answer: A static site behind Cloudflare can get AI without a backend and without storing an API key. Workers AI binds a model like Llama 3.3 70B…
My "Deploy to Cloudflare" button disabled auth
I recently open-sourced Minvoice , a small invoicing app that runs entirely on Cloudflare Workers. Like every well-behaved open-source Workers project…
My agent dry-ran fine in staging 100 times — then wrecked production on the first real run
A staging-to-production data bleed cost me 4 hours of rollback. That's what finally made dry-run a structural requirement, not an afterthought. The co…
После прочтения сжечь. Как устроен zero-knowledge сервис, где сервер не видит ключ
Привет! Задача возникла банальная: нужно передать коллеге пароль, API-ключ или конфиг. Телега — не хочется, почта — тем более. Существующие решения от…
My Durable Objects alarm loop burned CPU for 3 days before I noticed — here's what the docs miss
A 30-line Slack notifier was eating 60% of my CPU-time budget across 4 client Workers. The culprit: a runaway alarm loop I assumed was impossible. Her…
Cutting Claude API Costs in Half with a 3-Tier Routing System (Haiku/Sonnet/Opus)
Adding more Claude subagents made my pipeline slower past 6 — but the real problem wasn't concurrency at all. When I finally looked at the cost logs f…
KV locks for Workers cron jobs will silently fail — here's what I use instead
A ghost lock blocked every cron trigger for 6 hours after a Korean ad-network API took 45 seconds to respond — 15 seconds past the Workers wall clock …
Cloudflare under the hood: how it works and how attackers try to get around it
1. What Cloudflare actually is Cloudflare is not a reverse proxy running on one server somewhere. It is a globally distributed edge network with over …
cfzt: как я обернул Zero Trust Cloudflare Tunnel в одну команду и зачем туда пришлось добавить вотчдог для QUIC
В домашней инфраструктуре у меня крутится десяток сервисов: Grafana, Zabbix, n8n, Navidrome, ollama, БД, пара дашбордов и тестовых API. Кажд…
[Перевод] Cloudflare: Оркестрация AI-ревью кода в промышленных масштабах
Code review — отличный механизм для отлова багов, но это почти гарантированный способ создать «бутылочное горлышко» для всей команды. В Cloudflare мед…
Zero-JS Wasn't Enough: Edge Caching SSR HTML on Cloudflare Workers
The previous article ended with a confession: same build, two PageSpeed runs two hours apart, desktop Performance 99 and then 90. I blamed first-scree…
The Cloudflare toggle that's blocking your brand from ChatGPT
Originally published on the Brandswarm blog . We build Brandswarm . It's a SaaS that tracks how AI assistants describe your brand — ChatGPT, Claude, P…
Meet PageZERO: an open source SaaS starter kit on Cloudflare for the AI era
You have an idea for a SaaS. You open Cursor or Claude Code, and the familiar ritual begins. Auth. A database. Payments. Transactional email. Permissi…
How to Submit Your MCP Server to Anthropic's Connector Directory (From Someone Who Did It)
A practical guide based on real submission experience — what the form asks, what reviewers check, and what I got wrong the first time. I built an MCP …
Using Cloudflare Turnstile Invisible Challenges for Mobile APIs Without Breaking the User Experience
The problem we are solving We have mobile apps calling APIs through Cloudflare. The APIs are seeing automated traffic from headless browsers, scripted…
Security Week 2622: эффективность Claude Mythos по версии Cloudflare
На прошлой неделе компания Cloudflare поделилась своими впечатлениями о работе ИИ-модели Claude Mythos. Эта модель разработана компанией Anthropic, и …
Your robots.txt says GPTBot is welcome. Your server says 403.
Your robots.txt lists User-agent: GPTBot - Allow: / . The page loads fine in a browser. The "AI crawler" checkers say you're configured correctly. But…
Blazingly Fast Ecommerce Stack for Less Than a Coffee a Month — No Marketplace, No Platform Cut
If you've ever looked at a marketplace's fee page and felt your eye twitch, this post is for you. The major selling platforms take their cut from ever…
Two Gates Are Closing on AI Web Scraping
Google narrowed developer access to its web-search tools in January, while Cloudflare documented broader controls for blocking or challenging AI crawl…
I gave Claude a persistent memory for $0/month using Cloudflare
I gave Claude a persistent memory for $0/month using Cloudflare Claude is great. But every time you start a new conversation, it forgets everything. Y…
Your AI Strategy Has a Blind Spot: An SEO and AEO Audit of vibescoder.dev
I spend a lot of time thinking about how AI agents discover and consume content. I run a company that builds developer tools. I write a blog about bui…
I Deployed My First Cloudflare Worker — Here's What I Learned
I sat there staring at the screen, my heart racing as I clicked 'deploy' on my first Cloudflare Worker. What should have been a straightforward proces…