According to Abine, there are four main ways that a person's Internet browsing can be tracked. These are through Internet cookies, IP address tracking, web bugs and the web browser's history.
As the New York Times explains, there are also many methods available to users who want to maintain a low profile when browsing the web. Using search engines with privacy-friendly information policies, such as DuckDuckGo, can help reduce records of Internet searches. Many browsers also have private modes that allow users to browse without recording the websites they go to into the local Internet browsing history. Shielding an IP address is also possible by connecting to what is called a virtual private network, or VPN, which obscures an identity not only from Web sites but also from the user's Internet service provider.