Cover Your Tracks (EFF)
Browser test showing how trackers fingerprint and identify you
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Pricing
Free
Company
Electronic Frontier Foundation
Platforms
What is Cover Your Tracks (EFF)?
Cover Your Tracks is a browser test from the Electronic Frontier Foundation that shows how trackers see your browser. It checks how well you are protected from tracking and fingerprinting, and it gives an overview of your browser's most unique and identifying characteristics.
You open the site and run the test in your browser. You can also run it against a real tracking company. The site says it collects only anonymous data. There is also a guide that explains how fingerprinting works and how tracking can follow you around the web even after you've taken steps to protect yourself.
It fits privacy-minded people who want to check whether their browser setup, extensions or privacy browser actually reduce tracking. It also fits educators and researchers who want to show how browser fingerprinting works.
Key features
- Browser tracking and fingerprinting protection test
- Option to test with a real tracking company
- Overview of your browser's most unique identifying characteristics
- Guide explaining how browser fingerprinting works
- Collects only anonymous data
Use cases
Who it's for
Checking a privacy setup
Run the test after installing tracker blockers or changing browser settings to see whether your browser is still easy to identify.
Comparing browsers
Test different browsers to see which one exposes fewer unique characteristics to trackers.
Learning about fingerprinting
Use the results and the guide to understand how trackers follow you across sites.
Cover Your Tracks (EFF) pricing
From the vendor's site, checked Nov 7, 2026. Prices change — confirm on their pricing page.
The vendor does not publish plan details.
How Cover Your Tracks (EFF) compares
- Cover Your Tracks (EFF) has a free plan; none of the 2 alternatives below do.
| Tool | Starts at | Free plan | Free trial | API | Open source | |
|---|---|---|---|---|---|---|
| CCover Your Tracks (EFF) | Free | — | — | — | ||
A AmIUnique | — | — | — | — | — | Cover Your Tracks (EFF) vs AmIUnique |
B BrowserLeaks | — | — | — | — | — | Cover Your Tracks (EFF) vs BrowserLeaks |
The closest alternatives in our directory by category. “Starts at” is the cheapest paid plan per month, as each vendor lists it.
Pros and cons
Strengths
- Free to use, run by the nonprofit EFF
- Only anonymous data is collected
- Includes an educational guide on fingerprinting
Limitations
- Diagnoses tracking exposure but does not block trackers itself
Cover Your Tracks (EFF) FAQ
What does Cover Your Tracks do?
It tests your browser to show how well you are protected from tracking and fingerprinting, and it lists your browser's most identifying characteristics.
Is it free?
Yes. It is an EFF project that is funded by donations.
Does it collect my data?
The site says it collects only anonymous data.
Who makes it?
It is a project of the Electronic Frontier Foundation (EFF).
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Cover Your Tracks (EFF)
Free