ALAN Captcha functions


Experience the latest generation of bot defense...

...with the best possible protection of your users' privacy and maximum user-friendliness

Effektive Sicherheit

Effective security

ALAN Captcha effectively fulfills the most basic tasks of a CAPTCHA but does not get in the way of users. ALAN Captcha offers powerful protection against spam (junk messages) and improved security against cyber threats such as hacking, brute force attacks, credential stuffing, etc. It uses a variety of mechanisms and logic to make it difficult for automated scripts to bypass. ALAN Captcha offers increased protection for your contact forms, login screens, search forms and other customer contact points.

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Maximum user-friendliness

ALAN Captcha relies on cryptographic puzzles for machines (browsers). Human users do not have to solve tasks such as image recognition, text recognition or the like with ALAN Captcha. This makes ALAN Captcha the most user-friendly experience possible. Users can concentrate undisturbed on the activities they really want to do, such as filling out contact forms, or login masks.  

ALAN Captcha stands for "Zero User Friction". Your customer touch-points such as login pages remain accessible and user-friendly without causing frustration and without compromising security.


Data protection at GDPR level

ALAN Captcha has clear data protection guidelines. In the interests of 100% transparency, importance is often attached to whether and how user data is collected, stored and used. ALAN Captcha relies on a technology that does not track user behavior. The storage of personal data is also not necessary. ALAN Captcha supports you as a website operator or provider of online services in complying with data protection regulations such as the GDPR.

Mensch im Kreis

Accessible & Mobile First 

ALAN Captcha stands for maximum accessibility. Thanks to the cryptographic puzzles for machines and the associated task freedom for end users, ALAN Captcha is suitable for users with visual, auditory or other disabilities and is therefore WCGA-compliant. ALAN Captcha also takes into account the fact that smartphones dominate the digital landscape. ALAN Captcha ensures that it works perfectly on mobile devices. 



ALAN Captcha offers a large number of languages as standard, such as English, German, French, Dutch, Bulgarian, Czech, Ukrainian, Albanian and Vietnamese. The addition of Spanish, Portuguese, Italian, Turkish, Hungarian, Polish, Romanian and Slovakian is already in development.

Lineal Zirkel


ALAN Captcha can be customized to match the branding and design of the website or application to be protected. For example, you can change the look and feel of ALAN Captcha, such as colors, fonts and styles, to create a cohesive and visually appealing experience for your users.

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High-performance security

Our innovative CAPTCHA technology combined with state-of-the-art data centers ensures scalability and performance to handle high traffic loads. Through targeted fine-tuning, consistent performance can be delivered under different conditions, making it more difficult for bots to operate.