Understand What a Proxy Is
A proxy is a middleman between your device and the duckduckgoproxy.com internet. Instead of connecting directly to a website, your browser connects to a proxy server, which then fetches the site for you. This hides your IP address, making it harder for websites and advertisers to track you.
DuckDuckGo itself is privacy-friendly, but clicking on search results can take you to websites that do track you. A proxy helps keep your identity hidden even after you leave DuckDuckGo.