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.
Related Posts:
- Using both honeypot and captcha [closed]
- Adding Re Captcha to your site [closed]
- Adding a captcha plugin for comments in the site
- Create human verification for wordpress contact form with two random number [closed]
- I need captcha implemtation for any custom form in wordpress [closed]
- Difference between CAPTCHA and reCAPTCHA
- Custom ReCaptcha Login
- Integrate recaptcha and wp_signon – what is needed?
- Is there a plugin to protect downloads with recaptcha?
- Insert Captcha Code info Any Form (Created of Plugin)
- how to use reCaptcha v3 in wordpress custom login form?
- Help with verifying google recaptcha in a custom form
- How to implement Google reCaptcha without installing a plugin?
- How to run JavaScript function in WooCommerce checkout?
- How to disable reCaptcha v3 except on Contact Form 7 pages?
- Align reCaptcha to right on Contact Form 7 [closed]
- change captcha design in Fast Secure Contact Form plugin
- Adding a slider captcha to the comment system
- Undefined index: b in /path/file.php relating to querystring parameters
- recaptcha working on local but not on live wordpress sites [closed]
- How to validate recaptcha on comments form?
- Submit form after reCaptcha is solved
- How to add re-captcha to wordpress search?
- Gravity form built in Captcha
- Getting thousands of registration spam
- Session problem in PHP – trying to create a simple CAPTCHA
- Ajax Validation for reCaptcha
- CAPTCHA plugin where I can use my own images and ask my own questions? [closed]
- reCaptcha doesnt appear in comment (manual or plugin)
- How to find out which plugin create captcha after login?
- Gravity forms / Recaptcha / Autoptimize – somewhere it goes wrong
- How to integrate CAPTCHA on register page? [closed]
- Create customized captcha field to wordpress comment form without Plugin
- reCAPTCHA on page template without plugin
- Simple Math Quiz or Captcha to hide whois query form
- Add captcha validation to my custom form for Frontend posting
- Website Captcha Error: The reCAPTCHA wasn’t entered correctly
- Is it possible to check if password is correct in wp_authenticate_user?
- Capcha not getting displayed
- Can’t access my wp admin: captcha images invisible, gives me error message
- Custom Registration and Login Forms with reCaptcha 2 Validation
- s2member captcha how to make responsive – css or javascript
- Unable to login after adding ReCaptacha without API key