content: From DDG  We also save searches, but again, not in a personally identifiable way, as we do not store IP addresses or unique User agent strings. We use aggregate, non-personal search data to improve things like misspellings. Similarly, we may add an affiliate code to some eCommerce sites (e.g. Amazon & eBay) that results in small commissions being paid back to DuckDuckGo when you make purchases at those sites. We do not use any third parties to do the code insertion, and we do not work with any sites that share personally identifiable information (e.g. name, address, etc.) via their affiliate programs.   Edit : Formatting