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Data Science
Simon Willison's Blog·Jun 16·5 min read
Cloudflare CAPTCHA on at least one ampersand
TL;DR
Cloudflare's CAPTCHA system was causing unnecessary challenges for simple search queries on a website. A new rule was implemented using Cloudflare's API to only trigger the CAPTCHA for search URLs that contain an ampersand.
✦ Why It Matters
Engineers can optimize security settings to enhance user experience without sacrificing protection against bots.
Key Takeaways
- Configure CAPTCHA to trigger only for complex search queries.
- Use Cloudflare API for rule management.
- Test search functionality after implementing new rules.
- Monitor user experience to ensure CAPTCHA is effective.
How It Works
The new CAPTCHA rule is designed to activate only when the search URL contains an ampersand, which is common in more complex queries. This selective triggering reduces unnecessary interruptions for users performing simple searches.