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 40,958 websites Math Captcha Customers. We know of 13,438 live websites using Math Captcha and an additional 27,520 sites that used Math Captcha historically and 4,626 websites in the United States.
Get a list of 40,958 websites using Math Captcha which includes location information, hosting data, contact details, 13,438 currently live websites and an additional 8,819 domains that redirect to sites in this list. 27,520 sites that used this technology previouslyand 4,626 websites in the United States currently using Math Captcha.
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