Let's face reality: as soon as you browse the internet, you will be tracked and identified. Here are just a few data points used for fingerprinting:
IP address, User-Agent string, Referrer URL, Requested URL, Language, Locale, Screen resolution, Time zone, System time, Installed fonts, Installed plugins, Cookie data, Browser fingerprint, Canvas fingerprint, WebGL fingerprint, AudioContext fingerprint, Mouse movements, Click paths, Keyboard input timing, History sniffing, DNS queries, Destination IP addresses, HTTP traffic content, HTTPS metadata (host, SNI, timing), MAC address, Query parameters, Session ID, Login status, User account info, Geolocation (via IP), Geolocation (via browser API), Page interaction data, Time on page, Scroll behavior, Clicks, Form submissions, Browser type, OS type, Network provider, Client ID (\_ga cookie), Session ID, Timestamp, Pages visited, UTM parameters, Interaction events, Google Ad ID, DoubleClick cookie (IDE), Cross-site behavior, Cross-device behavior, Inferred demographics, Mouse tracking, Scroll depth, Video interactions, Audio interactions, Session replay, Keystroke logging, Facebook login status, Pixel events (Meta, LinkedIn, etc)
If you want to avoid that, you need to make a real effort (not just using DuckDuckGo). The Tails operating system might be a good place to start.
IP address, User-Agent string, Referrer URL, Requested URL, Language, Locale, Screen resolution, Time zone, System time, Installed fonts, Installed plugins, Cookie data, Browser fingerprint, Canvas fingerprint, WebGL fingerprint, AudioContext fingerprint, Mouse movements, Click paths, Keyboard input timing, History sniffing, DNS queries, Destination IP addresses, HTTP traffic content, HTTPS metadata (host, SNI, timing), MAC address, Query parameters, Session ID, Login status, User account info, Geolocation (via IP), Geolocation (via browser API), Page interaction data, Time on page, Scroll behavior, Clicks, Form submissions, Browser type, OS type, Network provider, Client ID (\_ga cookie), Session ID, Timestamp, Pages visited, UTM parameters, Interaction events, Google Ad ID, DoubleClick cookie (IDE), Cross-site behavior, Cross-device behavior, Inferred demographics, Mouse tracking, Scroll depth, Video interactions, Audio interactions, Session replay, Keystroke logging, Facebook login status, Pixel events (Meta, LinkedIn, etc)
If you want to avoid that, you need to make a real effort (not just using DuckDuckGo). The Tails operating system might be a good place to start.