Compare Cloudflare Turnstile to these popular alternatives based on real-world usage and developer feedback.

It is a free service that protects your website from spam and abuse. It uses an advanced risk analysis engine and adaptive CAPTCHAs to keep automated software from engaging in abusive activities on your site. It does this while letting your valid users pass through with ease.

Open security analytics. Understand, monitor, and protect your product from cyber threats, account takeovers, fake accounts, and abuse.

Real-time IP threat scoring, subnet intelligence, AI-powered analysis and global cyber activity tracking. Fastest IP reputation API.

Detect temporary emails with explainable AI. 95%+ accuracy, <500ms API, governance tools, and appeals management. 10 free email checks. Start now.