They use Microsoft Advertising: https://help.duckduckgo.com/company/advertising-and-affiliates/#howto https://help.duckduckgo.com/company/advertising-and-affili

They use Microsoft Advertising: https://help.duckduckgo.com/company/advertising-and-affiliates/#howto https://help.duckduckgo.com/company/advertising-and-affiliat..., more info: https://help.duckduckgo.com/duckduckgo-help-pages/company/ads-by-microsoft-on-duckduckgo-private-search/ https://help.duckduckgo.com/duckduckgo-help-pages/company/ad...