Cover Your Tracks
The EFF's test showing how uniquely identifiable your browser is from fonts, plugins and screen size alone. Most people are one in millions.
Opens in a new tab. We do not control this site and it may have changed since we catalogued it.
How to get the most from it
Cover Your Tracks sits in Privacy & Security under Learn, filed as a minute.
- Give it one round. There is nothing to finish and nothing lost by leaving.
- Use a laptop or desktop computer — we file it as desktop only.
- It works with the sound off, so it is fine on a train or in a quiet office.
- No account needed — you can start without signing up.
- Go in expecting something unsettling and brainy.
About this category: Breach checkers, fingerprint tests, throwaway inboxes and plain-English readings of terms of service. Mildly alarming, entirely free.
Good for
- A one-round break between tasks
- A little creeping unease
- Giving your brain a workout
- A quiet break at your desk
- Trying it with zero commitment
Cover Your Tracks: quick answers
Is Cover Your Tracks free?
Yes. Cover Your Tracks is free to use and needs no account.
Do I need an account to use Cover Your Tracks?
No. You can use Cover Your Tracks without signing up for anything.
Does Cover Your Tracks work on a phone?
Not well. We file Cover Your Tracks as desktop only, so open it on a laptop or desktop computer.
Is Cover Your Tracks safe for work?
Yes, we file it as safe for work. It also works muted.
How long does Cover Your Tracks take?
We file it as "A minute": One quick round, then you can leave.
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