Your web browser automatically sends information about your user agent and IP address to the search engine but Duck Duck Go will not store it at all. This information could be used to link you to your searches and other search engines will use it to show you more targeted advertising. Duck Duck Go will go out of its way to delete that data. At Duck Duck Go no cookies are used by default and they do not work with any affiliate program that will share personally identifiable information like name and address. Feedback at Duck Duck Go can also be given anonymous not having to enter an email address in the form (it can be left blank). This privacy search engine also allows searching via its SSL website and lots of customization options. Duck Duck Go pulls results from Microsoft’s Bing and Google search APIs, a lot of what you’re getting are results you could find on those search engines with the added advantadge that your personal privacy is respected while searching the Internet. Duck Duck Go also has its own web crawler and web index. Registration not required.