GeeTest protects websites, mobile apps and APIs from bad bot attacks with zero user friction. Its self-learning defense model based on Graph Convolutional Networks and massive volumes of behavioral biometric data collected since 2012 allows GeeTest to identify and mitigate bad bots across all GeeTest-protected sites. By analyzing over 200 parameters, GeeTest dynamic defense model provides its clients with a broader and deeper understanding of bot activities while its superior technology constantly learns and adjusts itself for any emerging threats. As the industry leader in the era of user experience, GeeTest CAPTCHA utilizes gamification to turn CAPTCHA into a fun and effortless experience. At present, GeeTest serves over 290,000 businesses worldwide, processing 1,000,000,000+ requests every day. At the beginning of 2024, GeeTest, a leader in innovative bot management solutions, proudly presents its latest offering – GeeTest Device Fingerprinting. The advanced cybersecurity solution designed to fortify online platforms against evolving digital threats. Leveraging sophisticated algorithms and cutting-edge technology, it intelligently identifies and tracks devices, providing a robust defense mechanism against malicious activities. Existing security measures often struggle to identify and prevent malicious activities originating from seemingly legitimate devices. GeeTest Device Fingerprinting steps in as a proactive and advanced solution to bridge this gap.

ALTCHA uses a proof-of-work mechanism to protect your website, APIs, and online services from spam and unwanted content. Unlike other solutions, ALTCHA is free, open-source and self-hosted, without external services, does not use cookies nor fingerprinting, does not track users, and is fully compliant with GDPR.