CAPTCHA for WordPress that integrates into login, registration and comments.
https://wordpress.org/plugins/wp-math-captcha/
Widgets · CAPTCHA · WordPress Plugins
Get access to data on 39,981 websites that are Math Captcha Customers. We know of 8,671 live websites using Math Captcha and an additional 31,310 sites that used Math Captcha historically and 2,849 websites in the United States.
Get a list of 39,981 websites using Math Captcha which includes location information, hosting data, contact details, 8,671 currently live websites and an additional 7,034 domains that redirect to sites in this list. 31,310 sites that used this technology previouslyand 2,849 websites in the United States currently using Math Captcha.
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