Deze plugin is niet getest met de laatste 3 grotere versies van WordPress. Mogelijk wordt het niet meer onderhouden of ondersteund. Ook kunnen er compatibiliteitsproblemen ontstaan wanneer het wordt gebruikt met recentere versies van WordPress.

Hashcash for Contact Form 7


This plugin marries the plugins WP Hashcash and Contact Form 7 thus allowing you to protect your contact forms using captcha-less hashcash spam prevention. Requires both WP Hashcash, or WP Hashcash Extended if you prefer, and Contact Form 7 to be installed and activated.

The main advantage of using this plugin is that bots who attempt to send spam using your contact form will be blocked without inconveniencing human users. Users won’t have to enter weird image captchas just to reach you.

See the Hashcash for Contact Form 7 homepage for more information.


  1. Unzip the package, and upload the folder hashcash-for-contact-form-7 to the /wp-content/plugins/ directory
  2. Activate the plugin through the ‘Plugins’ menu in WordPress
  3. Edit your contact form and add the hashcash tag [wphc] to it.


Er zijn geen beoordelingen voor deze plugin.

Bijdragers & ontwikkelaars

“Hashcash for Contact Form 7” is open source software. De volgende personen hebben bijgedragen aan deze plugin.


Vertaal “Hashcash for Contact Form 7” naar jouw taal.

Interesse in ontwikkeling?

Bekijk de code, haal de SVN repository op, of abonneer je op het ontwikkellog via RSS.


  • German language description added


  • Removed validation error messages because they are never displayed for nameless wpcf7 controls.
  • Added German language translation courtesy of Jan.
  • Changed plugin text domain to match plugin slug.
  • Translated strings are now escaped before output.
  • WordPress version number support bumped up to 3.8.


  • Bug fix release – Fixed a bug where the plugin failed to detect CF7 and WPHC. Thanks to Tobias Leugger for the bug report and help debugging.


  • Initial release