Stop punishing users with traffic lights. IronWall is a privacy-first alternative to reCAPTCHA. Instead of checking humanity, we challenge the device's computational power (Proof-of-Work). Spamming 1M requests costs a botnet real electricity/CPU time, making attacks economically unviable. ✅ 3KB SDK (Tiny) ✅ No Tracking / No Cookies ✅ Invisible to Humans (~1s solve time) ✅ Enterprise Controls (Geo-Fencing, IP Reputation) Drop-in support for React, Vue, and Vanilla JS.