Entropy per signal is an estimate from published research (AmIUnique, EFF Cover Your Tracks), not a live measurement against a population. It is an upper bound: real signals overlap, so effective uniqueness is lower. For a dataset-backed number, run EFF Cover Your Tracks.
What each signal gives away
Sorted by how identifying it is. The bar is the estimated bits.
Cookie you can delete. Fingerprint you cannot.
The banner guards the cookie. Nothing guards the fingerprint. Clear the cookie, reload, and the fingerprint still knows you.
What leaves your browser
Nothing. Every signal here is read and hashed in your browser; the fingerprint and the values are never sent to us or anyone. The visit counters use a cookie and localStorage in your own browser only. We keep one anonymous count that this tool ran. Verify in the source.
Lower your fingerprint
Tor Browser
Makes every user look identical, the gold standard for blending in. Best when you need real anonymity.
Firefox with resistFingerprinting
Set privacy.resistFingerprinting in about:config to spoof many of these signals toward common values.
Brave
Randomises canvas, audio and other signals per site by default, so your fingerprint shifts rather than sticks.
Block third-party scripts
uBlock Origin and similar stop most trackers from ever running the collection code in the first place.
These are unpaid recommendations chosen on merit. If that ever changes, this line will say so.