Adds Secure Image CAPTCHA anti-spam to WordPress
https://wordpress.org/plugins/si-captcha-for-wordpress/
Widgets · CAPTCHA · WordPress Plugins
Get access to data on 192,715 websites SI CAPTCHA Customers. We know of 42,917 live websites using SI CAPTCHA and an additional 149,798 sites that used SI CAPTCHA historically and 12,296 websites in the United States.
Get a list of 192,715 websites using SI CAPTCHA which includes location information, hosting data, contact details, 42,917 currently live websites and an additional 22,126 domains that redirect to sites in this list. 149,798 sites that used this technology previouslyand 12,296 websites in the United States currently using SI CAPTCHA.
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