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Base de Conhecimento da FocusVision

reCaptcha Integration

Overview

You can use the Logic Library to integrate a survey with Google's human verification system, reCaptcha. This is done using the recaptcha logic node.

1: Logic Syntax

To include reCaptcha verification in a survey, you will need to add a <logic> tag to your survey, specifying both a label and uses="recaptcha.1":

<logic uses="recaptcha.1" label="recaptcha"/>

 Additionally, you will need to include the following HTML code from reCaptcha:

<html cond="recaptcha.human" label="h1">
You are human
</html>
<html cond="not recaptcha.human" label="h2" final="1">
You are not human!
</html>

As soon as the survey encounters the recaptcha.1 logic node, it will stop executing and present the respondent with a Google reCaptcha test:

The text "I'm not a robot" displays in the respondent's browser-selected language, along with the reCaptcha logo. After clicking the check-box, the respondent may be presented with a number of images, where certain selection responses are required - in the example below, the user is asked to select images featuring fish: 

This check is not always performed; Google attaches persistent data to each browser that tracks whether the respondent has seen a reCaptcha test on any other page.

2: How it Works

After the user submits the page, FocusVision servers contact Google to independently verify the user's claim. You can call recaptcha.human in your survey to check whether the user was confirmed.

Note: If you are running SST, there is a 90% chance that recaptcha.human is True. Google's servers are not contacted when running SST.

reCaptcha is only usable on decipherinc.com and focusvision.com domains. If you would like to add reCaptcha to a survey on another domain, please contact your Account Manager or support team for assistance.

Alternatively, you can sign up for your own reCaptcha account to use on any domain. Once you sign up for reCaptcha, Google will issue you both a "site key" and a "secret" code. To start using your reCaptcha tests, simpl add the following logic tag to your survey, specifying these two values as provided within your Google site:

<logic uses="recaptcha.1"
     recaptcha:sitekey="12342"
     recaptcha:secret='12341234'
     label="recaptcha"/>
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