DuckDuckGo
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Screenshot of DuckDuckGo home page as of August, 2016
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Type of site
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Web search engine |
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| Available in | English |
| Headquarters | 20 Paoli Pike, Paoli, Pennsylvania, United States |
| Owner | DuckDuckGo, Inc. |
| Created by | Gabriel Weinberg |
| Slogan(s) | The search engine that doesn't track you. |
| Website | duckduckgo |
| Alexa rank |
 498 (April 2017[update])
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| Commercial | Yes |
| Registration | None |
| Launched | September 25, 2008 |
| Current status | Active |
| Written in | Perl,JavaScript, Python |
DuckDuckGo (DDG) 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 deliberately showing all users the same search results for a given search term. DuckDuckGo emphasizes getting information from the best sources rather than the most sources, generating its search results from key crowdsourced sites such as and from partnerships with other search engines like Yandex, Yahoo!, Bing, and Yummly.
The company is based in 20 Paoli Pike, Paoli, Pennsylvania, in Greater Philadelphia, and has 21 employees. The company name originates from the children's game duck, duck, goose.
Some of DuckDuckGo's source code is free software hosted at GitHub under the Apache 2.0 License, but the core is proprietary. On 21 May 2014, DuckDuckGo launched a redesigned version that focused on smarter answers and a more refined look. The new version added often requested features such as images, local search, auto-suggest and more.
On 18 September 2014, Apple included DuckDuckGo in its Safari browser as an optional search engine. On 10 November 2014, Mozilla added DuckDuckGo as a search option to Firefox 33.1.
DuckDuckGo was founded in 2008 by Gabriel Weinberg, an entrepreneur whose last venture, The Names Database, was acquired by United Online in 2006 for $10 million. Initially self-funded by Weinberg, DuckDuckGo is now advertising-supported but the user has the option to disable ads. The search engine is written in Perl and runs on nginx, FreeBSD and Linux.
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