Around 12 years ago, DuckDuckGo (DDG) web search engine was released in Paoli, Pennsylvania, Greater Philadelphia (USA). On 2008, Gabriel Weinberg created DuckDuckGo which name was chosen with respect to the children’s game duck, duck, goose. It collects the results from over 400 sources, crowdsourced websites, DuckDuckBot (its own crawler), and other search engines including, Bing, Yahoo, and Yandex.