DuckDuckGo is a search engine that protects the users’ privacy by not tracking behavior and activity in their service.
They also offer a browser application and a privacy-focused email service.
Can I delete my DuckDuckGo account?
No, you cannot delete your DuckDuckGo account and personal information.
How to delete DuckDuckGo account
Because of how the DuckDuckGo system works, all data are anonymized, and there is no explicit personal information they collected.