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 39,181 websites that are Math Captcha Customers. We know of 9,268 live websites using Math Captcha and an additional 29,913 sites that used Math Captcha historically and 2,915 websites in the United States.
Get a list of 39,181 websites using Math Captcha which includes location information, hosting data, contact details, 9,268 currently live websites and an additional 6,910 domains that redirect to sites in this list. 29,913 sites that used this technology previouslyand 2,915 websites in the United States currently using Math Captcha.
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