WebSpamProtect.com - CAPTCHA Service

A CAPTCHA is a type of challenge-response test used in computing to determine whether the user is human. A common type of CAPTCHA requires that the user type the letters or digits of a distorted image that appears on the screen. CAPTCHAs have several applications: preventing spam in blog, guestbook, contact/feedback form, wiki; protecting website registration; online polls; preventing dictionary attacks and other types of spam.

There are a few approaches to defeating CAPTCHAs: exploiting bugs in the implementation that allow the attacker to completely bypass the CAPTCHA or improving character recognition software. A number of research projects have attempted to beat visual CAPTCHAs by creating programs that contain the following functionality:

1. Extraction of the image from the web page.
2. Removal of background clutter.
3. Segmentation, i.e. splitting the image into regions each containing a single letter.
4. Identifying the letter for each region.

Steps 1, 2, and 4 are easy tasks for computers. The only part where humans still outperform computers is segmentation. If the letters are connected, the segmentation becomes nearly impossible with current software. Hence, an effective CAPTCHA should focus on the segmentation.

WebSpamProtect.com allows you to instantly add CAPTCHA to your web site and protect your forms against spam robots. Below are a few examples of CAPTCHAs that you can create. You can customize the CAPTCHA image size, text length, text type, colors, font, background and more.

Register now and protect your website!