CAPTCHA is a program that protects websites against bots by generating and grading tests that humans can pass but current computer programs cannot. A typical example of CAPTCHA in use is:
CAPTCHA Form Element
1. Drag and drop the CAPTCHA element into the appropriate location:
2. Configure the element. The following view will be displayed:
Ž3. Edit/configure:
Mode
Select Standard
Characters For Captcha Use
Enter appropriate characters to used to generate list for the user to enter.
Height (px)
Enter an appropriate value.
Width (px)
Enter an appropriate value.
Font Size
Enter an appropriate value.
Number of Characters to Display
Enter the appropriate number of characters to be displayed to the end user.
ReCAPTCHA
ReCAPTCHA is an accessible, audio version of CAPTCHA.
1. Select the ReCAPTCHA mode. The following view will be presented:
2. Edit/configure:
Mode
Select the required version of RECAPTCHA.
Public Key
Enter an appropriate API key.
Private Key
Enter an appropriate API key.
Note: API keys are available via Google Webmaster tools.
Theme
Select an appropriate option.
