WordPress plugin (ZIP install)

WordPress.org review is in progress. Until then, you can install captchalink.com manually by downloading the ZIP and uploading it from your WordPress admin panel.

Download plugin ZIP

Use this direct file:

https://captchalink.com/captchalink.zip
Download ZIP View widget docs

How to install (for non-technical users)

  1. Open your WordPress Admin.
  2. Go to Plugins -> Add New -> Upload Plugin.
  3. Select captchalink.zip and click Install Now.
  4. Click Activate Plugin.
  5. Go to Settings → Captchalink.
  6. Set Service base URL (usually https://captchalink.com).
  7. Enable CAPTCHA for the forms you want: comments, login, registration, lost password.

How verification works

The plugin injects a hidden captcha_token in form submit and verifies it server-side using: /api/verify.php. Default free keys are prefilled in plugin settings.

Troubleshooting

  • If CAPTCHA box is visible but empty, check your Service base URL.
  • If submit says CAPTCHA required, verify the widget script is loading and token is injected.
  • If running localhost, keep your WordPress and captchalink.com server reachable from the same environment.