Ads. However, DuckDuckGo does not run their own ad network. The ads you are shown are only based on the current keyword from your search. edit: Here is a quora

Ads. However, DuckDuckGo does not run their own ad network. The ads you are shown are only based on the current keyword from your search. edit: Here is a quora answer from the CEO at DuckDuckGo posted a couple years ago talking about how the company is funded. [0] [0]: https://www.quora.com/How-is-DuckDuckGo-funded?share=1 https://www.quora.com/How-is-DuckDuckGo-funded?share=1