This is the first article in a two-part series where we show how to build your own anti-bot system to protect a login endpoint, without relying on third-party services.
Why write this?
Many bot detection solutions, reCAPTCHA, Turnstile, or vendor-maintained scripts, are designed for easy integration but come with tradeoffs.
First seen on securityboulevard.com
Jump to article: securityboulevard.com/2025/10/roll-your-own-bot-detection-fingerprinting-javascript-part-1/
