DuckDuckGo supports search syntax you can use to fine-tune your queries.

Search Operators

• Use site: to limit your search results to pages from a specific website. For example, dogs site:example.com will return pages about dogs from the website example.com.
• Use –site: to eliminate pages from a specific website from showing up in search results. For example, cats –site:example.com will remove any example.com pages from your list of search results about cats.

Search Directly on Other Sites

• Use \ to go to directly to the first search result. For example, \futurama.
• Use ! to search other sites' search engines directly. Remember, though, because your search is actually taking place on that other site, you are subject to that site’s policies, including its data collection practices. For example, !a blink182 searches Amazon.com for blink182. There are thousands of sites covered!

Safe Search

• Add !safeon or !safeoff to the end of your search to turn on and off safe search for that search.

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Prior versions on GitHub.