Many people assume incognito mode makes them 'invisible.' In reality, incognito only stops your browser from saving local history and cookies. Sites can still stitch a pile of browser traits into a near-unique identifier without you noticing — that's a browser fingerprint.
How a fingerprint is assembled
- Canvas / WebGL rendering: the same drawing commands differ pixel-by-pixel across GPUs and drivers, enough to tell devices apart;
- Font list: the combination of fonts you have installed is often quite unique;
- Screen and timezone: resolution, color depth, timezone, and language together narrow you down;
- Hardware hints: CPU cores, memory, and the audio stack all get read.
Any single trait carries little information, but a dozen combined have an extremely low collision rate — studies show most browsers are unique under this fingerprint.
Incognito ≠ anonymous
Incognito only clears local traces (history, cookies) — your IP and browser fingerprint are still exposed as usual. It protects against 'other people on the same computer,' not against sites and trackers.
How to weaken fingerprint tracking
- Use a mainstream browser with default settings to blend into the crowd — ironically harder to single out than a heavily modded setup;
- Turn on your browser's built-in protection (e.g. Firefox's resistFingerprinting);
- Disable WebRTC to avoid leaking your real IP;
- Pair it with a VPN so that even a captured fingerprint can't be tied to your real location.
A fingerprint can't be eliminated 100%, but 'hide the IP + reduce unique traits' meaningfully cuts your cross-site tracking risk. clickone encrypts all traffic and takes over DNS by default, adding exit anonymity on top of this layer.