How do I prevent a respondent from responding to my survey multiple times?

How do I prevent a respondent from responding to my survey multiple times?

Set restrictions on your survey and specify how many responses you want or when to close your survey. You can also prevent the same user from entering multiple responses.

To prevent multiple responses:

  1. Click Restrictions on the left pane of the Launch tab.
  2. Select Prevent multiple responses if you want to restrict multiple responses from a single respondent.
  3. One response per respondent: Restrict multiple responses from a single person.

    1. One response per email: Restricts multiple responses from a single respondent by generating a unique URL for every email address. You can restrict when a respondent can update their responses:
      1. Respondents can't update their response: They will not be able to open the survey once they submit it.
      2. Respondents can update their response until they complete the survey
      3. Respondents can update their response at any time: They can update the survey even after they've submitted it.  
    2. One response per device: Restrict multiple responses from a single device by using browser cookies. As the survey's metadata is being stored through browser cookies, if the respondent clears their browser history and cookies, a fresh survey will be loaded. Any previously submitted survey response (partial/complete) will be considered as a different response. You can restrict when a respondent can update their responses:

      1. Respondents can't update their response: They respondent will not be able to open the survey once they submit it.
      2. Respondents can update their response until they complete the survey
      3. Respondents can't update their response at any time: They can update the survey even after they've submitted it. 
    3. One response per unique URL: Generate a unique URL for each respondent. You can restrict when a respondent can update their responses:

      1. Parameter name: Type the parameter name that will be appended to the URL.
      2. Do not allow URLs without the parameter: Restrict responses that don't have a certain parameter. This will be added to the URL of the published survey.
      3. Respondents can't update their response: They respondent will not be able to open the survey once they submit it.
      4. Respondents can update their response until they complete the survey
      5. Respondents can update their response at any time: They can update the survey even after they've submitted it.
  4. Click Save.