2026-06-23 · 6 min · Zsanett Angyalos

A Smarter reCAPTCHA Alternative: Introducing BitNinja’s JavaScript-Based Proof-of-Work CAPTCHA

Traditional CAPTCHA systems have protected websites from spam, abuse, and automated attacks for years. However, as bots become more sophisticated and user expectations continue to rise, website owners are increasingly searching for a more efficient and user-friendly reCAPTCHA...