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n-captcha is a modern, privacy-focused CAPTCHA engine designed to protect your web applications and cloud services from bots and automated abuse, while ensuring a seamless user experience.

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Why Choose n-captcha?

What is a CAPTCHA?
A CAPTCHA (Completely Automated Public Turing test to tell Computers and Humans Apart) is a security mechanism designed to differentiate between human users and automated bots. It helps protect websites from spam, abuse, and malicious automation by presenting challenges that are easy for humans but difficult for machines to solve.

Assessment:
CAPTCHAs are essential for maintaining the integrity of online services. They prevent automated scripts from performing actions such as account creation, form submissions, or scraping data. Modern CAPTCHAs, like n-captcha, use advanced techniques such as behavioral analysis and invisible challenges to provide security without disrupting the user experience.

• Easy Integration: Simple API and flexible widget for quick setup.
• Accessibility: Designed for all users, including those with disabilities.
• Customizable: Adapt the look and feel to match your brand.
• Privacy First: No tracking or unnecessary data collection.
• Advanced Security: Uses behavioral analysis and challenge-response to stop bots.

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How It Works

1. User interacts naturally with the page—no explicit challenge is shown.
2. n-captcha analyzes user behavior in real-time to distinguish humans from bots.
3. On success, a secure token is issued for your backend validation.

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Privacy & User Behavior

How does n-captcha handle user behavior data?
n-captcha uses behavioral signals—such as mouse movements, typing patterns, and interaction timing—to distinguish humans from bots. These signals are processed in real-time and are used solely for the purpose of bot detection.

• No Tracking: n-captcha does not use behavioral data for advertising, profiling, or tracking users across sites.
• No Persistent Storage: Behavioral data is not stored or linked to user identities. It is analyzed transiently and discarded after verification.
• Signature Generation: A temporary, anonymous signature may be generated from behavioral patterns to validate a session, but this signature cannot be used to track users beyond the current interaction.
• Privacy by Design: All data processing is compliant with privacy regulations and follows the principle of data minimization.

Your behavioral data is used only to protect your experience—never to track or profile you.

Protect your site, respect your users. Try n-captcha today!

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Get Started

Integrate n-captcha in minutes. See the documentation for setup instructions, API reference, and customization options.