No, it’s not an overkill to use honeypot and captcha together for the same form. Why? They both use different approach: Honeypots are targeted towards bots falling for common rules. Captchas are targeted towards humans passing rules. Why have Honeypots: When set up correctly, they’ll protect you against wholesale spam bots. It means it’ll automatically … Read more
Use this plugin for this purpose SI Captcha
My favorite captcha plugin is reCaptcha. The captcha images are scans from old, damaged books. A computer identifies possibilities with OCR, then the user, in correctly filling out the captcha, confirms it. It helps digitize whole books this way. It’s an initiative by Google. Read about them on their website.
CAPTCHA is the human validation test (usually the blurry squiglly letters that need to be deciphered) used by many sites to prevent spam. reCAPTCHA is a reversed CAPTCHA – the same test, used not only to prevent spam but to help in the book digitazion project. In other words, the reCAPTCHA tests are not meaningless combination of … Read more