Password Protection
Password-protect your surveys when you want to share them with specific groups. Anyone trying to access the survey will be shown a popup asking for the password before they can proceed.
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Prevent Multiple Responses
Make sure that people can only submit a single set of responses to your survey. You can use cookies or provide a unique URL to ensure that each respondent can only access it once.
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CAPTCHA
Enabling CAPTCHA protects your survey against automated responses from internet bots. CAPTCHAs use images that bots can't scan to verify that only real people are responding to your survey.
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SSL Certification
SSL (Secure Sockets Layer) establishes a secure connection to the server for your respondents. Zoho Survey comes packaged with SSL protection.
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