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I know the traditional way of evaluating whether a human user is consuming your web page or a bot is accessing it. The Captcha! I have see the image captchas' and expression captchas'.

But when I visited https://goo.gl/ I saw a new kind, where there is no image or an expression, the validation is just done by clicking on a DOM element. There are lot of automated programs that can generate a click and thus pass the validation that is there!

I am curious to know how this will avoid the bots and validates that there is actual human, who is performing the operation. Am I missing something?

Edit:

I saw this video, which is on the recaptcha home page It says that they use Advance risk analysis engine.. what does that mean?

codeMan
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  • just take an input and ask a simple question sth. like "Pls enter the yellow code you find at our imprint" or "enter our zip code from the footer" this will avoid most bots – john Smith Mar 16 '15 at 12:26

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It says that they use Advance risk analysis engine.. what does that mean?

They didn't publish how it exactly works. This would not make sense anyway because then it would be easier to make a bot bypass it.

schnellboot
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