DuckDuckGo

DuckDuckGo is the most popular private search engine and is the default for the Tor Browser. The company is based in the USA.

Key Features:

• No user tracking or profiling
• No search history storage
• No personal information collection
• Instant answers and bang searches (!g for Google, !w for Wikipedia)
• Available as mobile app and browser extension
• Dark web search through Tor

Privacy: Unlike Google, DuckDuckGo doesn’t create a search profile about you or show personalized results.