Nice information, Captcha is most important if you want to stop registration for spammers. Nowadays spamming is very high that�s why Google Panda is going very strict.

CAPTCHA code was created to prevent automated spam robots from filling out forms, sending out spam and carrying out other malicious activities. The test a CAPTCHA administers is a reverse-Turing Test: a computer administers a test to a human to demonstrate intelligence.

Captcha is designed to prevent spamming from automatic softwares.

Captcha is nothing but an Image code which is used to stop spammers. Generally Captcha is used at the time of Registration purpose.

Captcha is great tool for those fighting against SPAM entries in blog or website .. If someone using word press sites ... then its can be use by simple plugines ...

Captcha is usually used for the key motive to stop robotic accounts filling.

Captcha protect against robot fill up. Human man is identify the captcha sign. So protect against spammers.

Hello. Thank you very much for describing the definition about captcha. Today it�s very important, because it�s needed to stop spammers. I do not like captcha which is very complicated and there is almost impossible to read and understand anything�

Captcha is a code program to have a spam protection against bots.

One response to the security characters were created by the operations that are used in an attempt to challenge-response test type. Process is typically a computer, the computer can do to some extent in order to complete a simple test to ask users will.

A CAPTCHA is a type of challenge-response test used in computing to determine that the user is not run by a computer. The process involves one computer (a server) asking a user to complete a simple test which the computer is able to generate and grade. Because other computers are unable to solve the CAPTCHA, any user entering a correct solution is presumed to be human. A common type of CAPTCHA requires that the user type the letters of a distorted image, sometimes with the addition of an obscured sequence of letters or digits that appears on the screen.
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It's a code use for security.Combination of letters and numbers.

I dont know.

Thanks for sharing wonderful information.


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I have found that since adding Capatch to my site is has cut out on all unwanted junk mail. Great little creation!