Research Survey Vendors

comScore Dynamic Logic GfK/Dimestore
Insight Express Nielson Symphony


  • Survey invitations must be pop-under or in-banner; pop-ups and flyovers are not accepted.
  • Surveys and invitations may not contain Defy Media logos or logos from any of our properties.
  • Surveys and invitations may not imply Defy Media or any of our properties are sponsoring the survey.
  • Clients must notify Defy Media of the need for bonus impressions before signing of the IO.