DuckDuckGo is an internet search engine that emphasizes protecting searchers' privacy and avoiding the filter bubble of personalized search results. DuckDuckGo distinguishes itself from other search engines by not profiling its users and by showing all users the same search results for a given search term.
DuckDuckGo is built primarily upon search APIs from various vendors. Because of this, TechCrunch characterized the service as a "hybrid" search engine.
In July 2010, Weinberg started a DuckDuckGo community website to allow the public to report problems, discuss means of spreading the use of the search engine, request features, and discuss open sourcing the code.