All the Benefits of CAPTCHA without having a CAPTCHA! WP CAPTCHA Free Plugin

Posted by Abbas ||

June 1, 2009 ||

3,362 views ||

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STOP SPAM Like every other WP based blog I have Akismet taking care of the comment spam. It does a good job of it and does not let any spammy comments fall through the cracks.

I noticed number of spam comments have increased from a few 100 a day to couple thousand. Though Akismet is not letting any of these comments through on the site, these are certainly using server resources.

After one of my friends suggested I decided to install a CAPTCHA plugin to stop the spam from entering into the system itself. I am not a great fan of CAPTCHA as the easy ones are crackable anyway and the tougher ones are tough enough to confuse a human.

In the process of searching for the right plugin I found “WP CAPTCHA Free” which does the job VERY well and does not even have a CAPTCHA!

Here is how it works!

“WP CAPTCHA-Free blocks comment spam by using a combination of time-based hash (a.k.a. Time Based Tokens, TBT) and JavaScript (AJAX). When a comment is posted the plugin validates a hash based on time (and some other parameters). Comments posted via automated means will not have a hash or will have an expired hash and will be rejected. Unlike using a CAPTCHA, this does not place any burden on the commenter. “

I haven’t seen a single SPAM comment entering the system for approval or otherwise. At the same time I have tested if it lets uses enter a comment without a problem. So far I haven’t had a problem but I would encourage our readers to shoot an e-mail to nerds at tnerd.com.

Click here to visit the plugin page.

Tags: captcha, CAPTCHA Image, CAPTCHA Plugin Wordpress, Free Captcha

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