CAPTCHA alternative with advanced bot detection
Make your website unprofitable for bot attacks. Detect and stop suspicious activity. Customize security measures to suit your individual needs.
Security Concept
Multi-layered protection against bots, abuse, and fraud
TrustCaptcha protects every interaction automatically. This keeps spam, abuse, and fraud away while users verify without even noticing.
Overview
Each layer contributes to making bot attacks economically unprofitable, ensuring security with the best possible user experience.
| Name | What it does | Benefits |
|---|---|---|
| 1. Adaptive Cryptographic Puzzles | Uses a dynamic proof-of-work concept that automatically increases the computational effort for suspicious requests, depending on threat level and request frequency. | Large-scale abuse and automated attacks become economically unprofitable, drastically reducing spam and misuse while real users are unaffected. |
| 2. Intelligent Bot Scoring | Real-time evaluation of bot signals and technical data to compute a bot detection score. | Stops spam and suspicious activity early and protects your forms from abuse. |
| 3. Configurable Policy Controls | Provides administrative settings including CAPTCHA duration, IP allow/block lists, geoblocking, bypass keys, adjustable sensitivity/thresholds, multi-attempt/result retrieval logic and configurable verification validity. | Enables precise tuning of protection strength to operational needs and different use cases. |
Automatically stop attackers.
Every request from a bot costs time and computing power. TrustCaptcha’s adaptive cryptographic puzzles scale dynamically, the more suspicious the activity, the harder the cryptographic puzzle becomes. For attackers, large-scale abuse quickly becomes economically pointless while real users are not affected.
Smarter decisions through intelligent scoring.
TrustCaptcha analyzes bot signals and technical data to detect automated traffic and stop it. A transparent score helps your system decide who gets in, reducing spam and preventing attacks. In addition to our logic, it can be used in combination with your own security logic, e.g. blocking suspicious sessions or triggering stronger checks like two-factor authentication or identity proofing.
Your website, your choice.
Every website is different. Fine-tune thresholds, adjust sensitivity, adapt CAPTCHA duration or create allowlists for trusted partners and internal tools or block specific countries or IP ranges with one click. You control the CAPTCHAs behaviour.

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Everything you need to protect your website now is just a few clicks away!
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- No puzzles
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