Undertone is a member of the Network Advertising Initiative (“NAI”). The NAI is a cooperative of online marketing and analytics companies committed to building consumer awareness and establishing responsible business and data management practices and standards. The NAI Code requires transparency that supports consumer choice with regard to use of sensitive consumer data for online behavioral targeting. While Undertone does not create nor use any sensitive data segments in providing its online advertising services, in order to provide transparency around health related data segments, below is a list of standard health related segments Undertone may utilize in delivering advertisements.

  • Men’s Health and Personal Care
  • Women’s Health and Personal Care
  • General Health
  • Fitness Enthusiasts and Wellness
  • Pregnancy
  • Seniors Health and Wellness
  • Common Ailments such as allergies, heartburn, headaches, muscle pain, vision, and cold and flu



Interest-Based Advertising or IBA is why you see ads that are relevant to you. With this type of advertising, Undertone collects non-personally identifiable information and uses this information to try to predict what ads might be the most interesting to you.  Undertone is committed to providing consumers notice and choice regarding IBA. Undertone offers an “opt-out cookie” for those that wish to opt-out of Undertone IBA activities. This cookie will honor your IBA preferences for a period of five (5) years. We may increase this period, which means your opt-out choice will continue for a longer period. If you have multiple Internet browsers or users on the same computer, you will need to perform the opt-out operation for each browser and/or user. If you or your anti-virus or other software deletes the opt-out cookies from your computer, if you re-install your browser, or if you delete your cookies (which can happen if you clear or delete your browser history), then you will need to repeat the process. Undertone may be unable to provide you with an opt-out cookie if your browser is set to block third-party cookies.

Click Here to Install the Undertone Opt-Out Cookie.

Please note that the above opt-out link is applicable to Undertone IBA activities conducted through “ads.undertone.com” as well as “legolas-media.com.” You may also opt-out of IBA conducted by Undertone and other member companies of the Network Advertising Initiative (NAI) by visiting the NAI website here. Or you may opt-out of IBA by Undertone and other member companies of the Digital Advertising Alliance (DAA) by visiting the DAA website here