wp captcha prove that the visitor is a human being and not a spam robot. captcha plugin is the best security solution that protects your Wordpress website forms from spam entries. It can be used for login, registration, password recovery, comments and much more.
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How to add Captcha, Wordpress forms and more?
Follow the next steps in order to add Captcha to your Wordpress login page (form):
Open your Wordpress admin Dashboard.
Navigate to WP Captcha settings page.
Select Different types of captcha from Captcha Types.
Select settings which you wants.
Select Forms to display Captcha.
Other settings you can enter custom error messages.