HTTP referrer
Referrer (HTTP referrer) enables you to acquire information about the source (URL) from which your respondents came. It is working by default for all your surveys and tests, so you don’t have to set any options to activate it. Just add /referrer/ at the end of the survey URL. Collected information is available in individual survey reports and exported data.
Example:
NOTE. The referrer is based on the HTTP header field called HTTP_REFERRER. We can’t give any guarantee about this value as some users may block it in the web browser. To learn more about HTTP referrer, please visit HTTP_REFERRER on Wikipedia.
Functionality is available in the Professional and Enterprise plan.