Restrict survey access to people who click the link from a specific website.
When enabled, only visitors coming from the URL you specify can access the survey. This prevents the link from being shared or copied to other locations.
Important: The URL must match exactly, including http:// or https:// and any specific page paths.

Example use case: Your survey link is posted on a password-protected department website, and you want to ensure only people who can access that page can take the survey.