> https://coveryourtracks.eff.org/
You quickly discover how difficult it really is to avoid a unique fingerprint.
Lots of folks in this thread are focusing on DNS and VPN to avoid detection, which of course can help, but a huge number of identifiable bits come from your browser's APIs:
User Agent
Screen Size and Color Depth
System Fonts
Hash of canvas fingerprint
Hash of WebGL fingerprint
WebGL Vendor & Renderer
Touch Support
AudioContext fingerprint
Hardware Concurrency
Device Memory
Platform
Language
Timezone
Timezone offset
Browser Plugin Details
etc etc