This cookie name is being set on 1,326 websites and 992 distinct domains and we have seen it bein used in the following objects:

  • 1,326 HTTP cookies

Cookie origin and purpose

  • Generic Visual Website Optimizer (VWO) user tracking cookie (confidence 0.5) » Reference...
  • A session (temporary) cookie used by Generic Visual Website Optimizer (VWO) to detect if the cookies are enabled on the browser of the user or not (confidence 1.0) » Reference...

Cookie classification

  • unknown (confidence 0.5)
  • tracking (confidence 0.5)

Sample values

Sample value:

Domains targeted by _vis_opt_test_cookie cookie

This list includes both third-party domains set by tracking and adversing companies, as well as the first-party domains of the websites that use this cookie name.

Websites setting _vis_opt_test_cookie cookie

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