Thread: CAPTCHA

captcha.net

http://www.captcha.net/

A CAPTCHA ( /ˈkæp.tʃə/) is a type of challenge-response test used in computing as an attempt to ensure that the response is generated by a human being.

The process usually involves a computer asking a user to complete a simple test which the computer is able to grade.

These tests are designed to be easy for a computer to generate but difficult for a computer to solve.

If a correct solution is received, it can be presumed to have been entered by a human.

A common type of CAPTCHA requires the user to type letters and/or digits from a distorted image that appears on the screen.

Such tests are commonly used to prevent unwanted internet bots from accessing websites.

CAPTCHA - Wikipedia, the free encyclopedia

time for TD to invest in the technology ...............

and

Since 2009, CAPTCHA advertising has become much more prevalent. Publishers like AOL, Meredith Corporation,[6] and Internet Brands [7] have adopted the option as an additional revenue stream. Users typically type in brand messages instead of distorted text.[8] Leaders in the space are Solve Media, AdsCaptcha, and NuCAPTCHA, among others.[9]

which should please your hip pocket DD

.