Captcha on registration
Require captcha on /register — first line of defense against bot signups.
Captcha on registration
Requires captcha on the sign-up form (/register) whenever this toggle is on (always challenged — not tied to login attempt counts).
Where to find it
Admin → Settings → Settings (first tab) → Captcha & abuse → Captcha on forms → Register
Setting key: register_captcha_enabled
How it works
Pair with Disallowed mail hosts and Require email verification before you open registration publicly.
Common problems
Humans fail registration
Broken keys or domain not allowed in the provider console. Test in a private window on the live hostname.