Image based Captcha is the latest alternative to current text based Captcha. It’s based on a set of images easier to be recognized and classified by human users than traditional textual Captcha. The user has to identify and click on a sequence of images. After he completes correctly the test and is verified as a human – he is allowed to carry on his online session.

3D Captcha image is unbreakable by robots yet easy to discern by human beings…

As you may already know by now, Captcha is a common approach to prevent access of users that aren’t human to all kinds of websites. The captcha is a kind of test that requires verification of distorted image plus textual content which is deciphered easily by humans but not by computer bots. 
However, it appears that [...]

Like the following captcha comics?

Check this excellent site…
(And please let us know if you run into additional funny stuff)

Is the Captcha test not perfect? It sure looks like it can be improved, as not too long ago some bot spammers had succeed to crack the Captcha codes of the registration process to Gmail…

Audio Captchas are an alternative for people who suffer from sight impairment and thus are unable to solve regular textual or image Captchas

Captcha protects your website from unwanted users such as automated machines, bots and spammers. Once you have decided to use Captcha for your site, there are some important criterions you must take into consideration:
Accessibility
Captcha must be accessible for every user – for the normal and the blinds.
That means that the captcha image shouldn’t be too [...]

Online Marketing Solutions / Online Branding Solutions
Businesses that want to succeed in the online world should know how to market their selves, meaning they must know their target market / audience and the channels they can use in order to get to this audience.
The following online marketing solutions can be used for branding a new [...]

The initials for Captcha are: “Completely Automated Public Turning test to tell Computers and Humans Apart”.
But when searching for the term on the web it seems like users tend to perform some typing errors as well as misspellings.
The most common misspellings for the captcha term are: captsha, capatcha, capttcha and chaptcha, while sometimes these misspellings are [...]

Captcha Definition
Captcha is the abbreviation of “Completely Automated Public Turning test to tell Computers and Humans Apart”.
What is Captcha?
Captcha is some kind of a test or a task that human user will perform easily while a bot or an automated script should find it difficult to carry out as well as time-consuming.
Captcha tests are used [...]