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How It Works
How It Works · 14 min

How Cloudflare Decides You're a Bot (Without a CAPTCHA)

How Cloudflare detects bots without a CAPTCHA: TLS and JA4 fingerprinting, HTTP/2 signatures, headless checks, and the 1 to 99 bot score explained.

Shahzeb Umer
Jul 13, 2026

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