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Remember your 404s until the next deploy

Remember your 404s until the next deploy

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2 min read
Cloudflare Turnstile in Playwright tests: what test keys cover and when you need real keys

Cloudflare Turnstile in Playwright tests: what test keys cover and when you need real keys

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6 min read
CI on Cloudflare Containers cost a quarter of GitHub's price. Keeping it alive took 433 commits.

CI on Cloudflare Containers cost a quarter of GitHub's price. Keeping it alive took 433 commits.

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7 min read
cf-cache-status DYNAMIC: Why Cloudflare Isn't Caching Your HTML (and How to Fix It)

cf-cache-status DYNAMIC: Why Cloudflare Isn't Caching Your HTML (and How to Fix It)

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8 min read
PageSpeed 100 on Mobile With Next.js: What Actually Worked (and What Didn't)

PageSpeed 100 on Mobile With Next.js: What Actually Worked (and What Didn't)

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10 min read
Send email from a Cloudflare Worker contact form

Send email from a Cloudflare Worker contact form

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5 min read
Cloudflare Turnstile contact form tutorial: verify the token in a Worker

Cloudflare Turnstile contact form tutorial: verify the token in a Worker

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5 min read
I built a pen-pal platform that gives your inbox back — mutual match or no email

I built a pen-pal platform that gives your inbox back — mutual match or no email

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3 min read
Why your email scraper misses addresses: Cloudflare [email protected], entities and [at]/[dot] in Python

Why your email scraper misses addresses: Cloudflare [email protected], entities and [at]/[dot] in Python

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5 min read
How we moved a live crochet shop to Cloudflare with zero downtime

How we moved a live crochet shop to Cloudflare with zero downtime

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2 min read
Five Serverless Instances, Five Counters, One Rate Limit That Didn't Exist

Five Serverless Instances, Five Counters, One Rate Limit That Didn't Exist

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6 min read
Handling Legacy Domain Requests on a Static Site with 301 and 410

Handling Legacy Domain Requests on a Static Site with 301 and 410

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2 min read
A Collision in Our Own Per-Request Key: One of Our URLs Returned the Same Bytes Twice in 30 Fetches

A Collision in Our Own Per-Request Key: One of Our URLs Returned the Same Bytes Twice in 30 Fetches

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4 min read
Embedding a signed-in web app in itch.io: frame-ancestors, partitioned cookies and OAuth

Embedding a signed-in web app in itch.io: frame-ancestors, partitioned cookies and OAuth

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5 min read
The Rate Limiter Was the Outage

The Rate Limiter Was the Outage

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5 min read
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