Check registration info against a blacklist. Module page https://www.drupal.org/project/spambot Stability Secure Tags #Spam, #Users #Spam [Module] Spambot [Module] Honeypot [Module] Automatic IP Ban (Autoban) [Module] ReCaptcha V3 [Module] Spam Master #Users [Module] Spambot [Module] User Field Login [Article] Default Roles [Module] Real Name [Article] User Login And Registration