This plugin hasn’t been tested with the latest 3 major releases of WordPress. It may no longer be maintained or supported and may have compatibility issues when used with more recent versions of WordPress.



First read, then comment: CommentCaVa disables the comment field for a certain amount of time. This time is calculated from the length of the blog post. Reading speed is set to 30 characters per second. Previous comments are not counted.

CommentCaVa is only a small JavaScript file that also runs outside of WordPress with minor modifications. The waiting message is currently displayed in English (default) or German, according to the browser settings.

This project was subject of my story about blog comments in c’t Magazin 17/2013.

Wishlist: * add more languages, maybe via WordPress plugin i18n * use WordPress options for settings (reading speed, waiting messages, locked comment styling)


Only works with WordPress’ own comment system – no Disqus, Facebook etc. Should do no harm if this condition is not met. Detection of page visibility requires a modern browser (Firefox, Chrome, Opera, Safari 7+, Internet Explorer 10+) that supports the Page Visibility API.


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Contributors & Developers

“CommentCaVa” is open source software. The following people have contributed to this plugin.


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Browse the code, check out the SVN repository, or subscribe to the development log by RSS.


1.0.1: fixed erroneous script directory (WordPress converts directory to lowercase).