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!This plugin hasn’t been updated in over 2 years. It may no longer be maintained or supported and may have compatibility issues when used with more recent versions of WordPress.

WP-Hashcash Extended

Client-side javascript blocks all spam bots. XHTML 1.1 compliant. Now with support for WordPress Versions 3.1+

Installation Instructions

To install WP Hashcash, please download the plugin and unzip it, then copy the wp-hashcash.php file to wp-content/plugins. Activate the plugin and drag into your Widgetized sidebar for public statistics, or visit Options, WP Hashcash from the admin panel to configure options.


If you are upgrading from a previous version of WP-Hashcash, please disabled the plugin, then delete its files entirely. Then, upload the latest plugin files and activate!

Requires: 3.1 or higher
Compatible up to: 3.3.2
Last Updated: 5 years ago
Active Installs: 1,000+


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