What is reCAPTCHA? reCAPTCHA v2 & v3 in ASP.NET

reCAPTCHA is a service that protects your site from spam and abuse. It uses advanced risk analysis techniques to tell humans and bots apart.

reCAPTCHA v3 helps you detect abusive traffic on your website without user interaction. Instead of showing a CAPTCHA challenge, reCAPTCHA v3 returns a score so you can choose the most appropriate action for your website.

reCAPTCHA v3 scores are between 0–1.

reCAPTCHA v2 (“I’m not a robot” Checkbox) requires the user to click a checkbox indicating the user is…