What's on this page:IntroductionDetermining Who Can Access Your SurveySetting a Survey PasswordPreventing Respondents from Taking Your Survey More Than OnceRestricting What Website a Respondent Comes FromPreventing Search Engines From Finding Your SurveySpecifying When Your Survey Can Be Started
Some surveys require more privacy than others. Using the Survey Protection settings available in Survey Options, you can password protect your survey, specify a date and time for the survey to close, prevent respondents from taking the survey more than once, and more.
To access your Survey Protection settings, click Survey Options in the Survey module.
You will see the following Survey Protection settings:
Determining Who Can Access Your Survey
There are two ways a respondent can enter your survey. The first is to do so anonymously, by clicking an Anonymous Link. The second is to click an Individual Link generated just for them (either though the Emails tab or the Personal Links tab in the Distributions module).
By default, respondents with either type of link can take your survey. If you would like to restrict access to only those who have received the Individual Link in an email invitation, select By Invitation Only.
To change survey access
Setting a Survey Password
You can set a single, general password that any respondent must enter to access your survey. This is helpful when you are using the Anonymous Link and want to restrict who can enter the survey.
To set a survey password
Preventing Respondents from Taking Your Survey More Than Once
In circumstances where you are offering an incentive or conducting a sensitive vote, you may want to prevent participants from taking a survey more than once. The Prevent Ballot Box Stuffing option helps keep respondents from taking a survey multiple times by placing a cookie on their browser when they submit a response. The next time the respondent clicks on the survey link, Qualtrics will see this cookie and not permit them to take the survey.
Prevent Ballot Box Stuffing is a great deterrent, but can be circumvented by savvy participants clearing their browser cookies or switching to a different web browser. With surveys that have a higher incentive to cheat, consider distributing your survey using the Qualtrics Mailer (which creates a unique, one-time use link for each participant) or using an Authenticator.
To enable Prevent Ballot Box Stuffing
Restricting What Website a Respondent Comes From
Using the HTTP Referer Verification option, you can specify the URL your respondents must come from in order to access your survey.
This setting is useful if your survey link is posted on a particular website (such as an internal university or company page) and you want to make sure the link does not get copied and sent to others. Only those who can access that page would be able to take the survey.
To restrict what website a respondent comes from
Preventing Search Engines From Finding Your Survey
Search engines work by creating what is called an index, or a map of all pages on the Internet so they can be searched quickly. With the Prevent Indexing option, you can keep search engines from finding your survey and presenting it in their search results.
To prevent indexing
Specifying When Your Survey Can Be Started
By default, surveys can be taken at any time as long as they are active. Setting the Survey Expiration allows you to specify the exact date and time when respondents can begin your survey.
Respondents trying to access your survey before or after the specified range will receive a simple message explaining that the survey is currently unavailable. The expiration date specifically affects participants’ ability to start the survey. Those who are in the middle of a response will be allowed to continue taking their survey and finish after the expiration date.