Comments on: 21 Best CAPTCHAs: Bloggers Boon & Spammers Bane

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By: David

David — Sat, 28 Aug 2010 05:10:38 +0000

A PHP supported captcha which works on all browsers and pages, as far as they are PHP based. A free captcha script, which can be easily embedded in existing pages to make them safe from any abuse.

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By: Sarah

Sarah — Wed, 09 Jun 2010 18:26:33 +0000

The Vidoop CAPTCHA listed (#9) has been acquired and approved upon by Confident Technologies. It’s a free web app and it’s by far the easiest on your website visitors while also being more secure than text-based CAPTCHAs (which can easily be solved by bots using optical character recognition).

The former Vidoop CAPTCHA, now Confident CAPTCHA from Confident Technologies is available for free here: http://demo.confidenttechnologies.com/captcha/

By: Chat Software

Chat Software — Mon, 24 May 2010 15:04:34 +0000

WP Captcha is the most popular I think.

By: 黑帽SEO

黑帽SEO — Wed, 12 May 2010 23:39:05 +0000

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