DuckDuckgo was founded in 2008 as an alternative search engine that respects user privacy and claims to have a "superior search experience with smarter answers". DuckDuckGo users flock to the site to avoid the filter bubble of personalized search results. The number of people who used the search engine grew in 2015, and according to DuckDuckGo, they even had a day on which they reached over 12 million search queries.
This increase in queries can be correlated directly to the traffic increase the search engine saw over 2015. Looking at worldwide desktop and mobile traffic, DuckDuckGo had an impressive 22% increase in traffic from January to December 2015: