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Fingerprint
Telling your own profiles apart
- 6
- Fields that make two profiles one machine
- 5
- Fields counted one by one
- None
- Browsers opened to answer
- Every one on this computer
- Profiles compared
Why a twin is the worst tell
A proxy changes where a profile comes from, not what the machine behind it says about itself.
Two profiles reporting one screen, one core count, one memory size and one card are linked, and separate cookies do not undo that.
A platform need not prove the two belong together. It reads the coincidence, and one across six values at once is the kind it acts on.
Six fields make a machine
Two profiles count as one machine when all six agree. The clock stands on its own line and does not enter that verdict.
Pixel ratio and platform decide a twin without appearing in the list below. The platform is never offered for editing, and the ratio follows the panels that template ships with.
| Field | Makes a twin | Counted one by one |
|---|---|---|
| Screen size | Yes | Yes |
| Cores | Yes | Yes |
| Memory | Yes | Yes |
| Graphics card | Yes | Yes |
| Pixel ratio | Yes | No |
| Platform | Yes | No |
| Time zone | No | Yes |
A real reading
A field only this profile holds separates it. A field the whole crowd shares separates nobody, and the list shows which is which.
Shared with ten means ten other profiles report that value. The smaller the number, the more the field separates.
- Screen 1280x800
- shared with 11 of the other 99
- Cores 4
- shared with 2
- Memory 4 GB
- shared with 4
- Graphics card Intel Iris Plus 640
- shared with 8
- Time zone Asia/Tokyo
- shared with 1
The rarest of a hundred profiles on the macOS template, generation 4. The script that counts it is below, so you can repeat the draw.
What a hundred profiles add up to
Measured on three hundred draws of a hundred profiles per template on the shipped engine, with no proxy attached.
Different machines is how many distinct computers the hundred describe. Largest group is the biggest pile sharing one of them, and a profile inside that pile meets the rest of it as twins.
Your own hundred lands somewhere in the range: it is a draw, not a constant.
| Template | Different machines out of 100 | Usually | Largest identical group |
|---|---|---|---|
| macOS | 61..80 | 70 | 3..8 (usually 4) |
| Windows | 70..88 | 79 | 2..7 (usually 3) |
| Linux | 67..87 | 78 | 2..6 (usually 3) |
| Android phone | 17..20 | 20 | 7..19 (usually 11) |
| Android tablet | 7..7 | 7 | 16..26 (usually 19) |
The clock is counted apart
The exit country decides the time zone AND the language list: both are replaced, so a proxy moves two fields, not one. They are reported apart because they follow the country rather than the draw.
Only seven countries out of 114 carry a spread of zones. Behind the other 107 a hundred profiles land on one zone and one language list, and that is the honest ceiling of these two fields.
- 100 profiles behind proxies from one country with a spread
- 2 to 4 time zones, every one of them real there
- The same hundred behind a country without one
- 1 zone and 1 language list, shared by all of them
- Countries carrying a clock and a language list
- 114, of which 7 carry more than one zone
Counted by running the generator, three hundred sets of a hundred profiles. Without a proxy a hundred hold 39 to 49 different language lists, usually 44.
What to do with a twin
The report reads the values a launch would, hand-picked ones included. The exception is the exit country: it comes from the profile record and stays empty until the first launch or the first press of the proxy check. An edited field moves the number straight away.
Fix a twin on the profile you have not spent yet, not on the one already carrying an account.
- 1
Change one field by hand
The editor offers only what that template's real machines report, and screen and card are where the choice is widest: nine panels and ten cards on the Mac.
- 2
Press the button again
The reading is computed from the profile itself, so the new answer appears without opening anything.
- 3
Or start a fresh profile
A different profile number draws a different machine, and an account with no history behind it loses nothing by moving.
A profile already in use is a poor place to experiment
What this does not do
- It compares your profiles with each other and with nothing else. How common that machine is out on the internet is never asked, and a rare one is a tell of its own.
- It is not a forecast of blocks. Two profiles separable here can still be tied by one payment card, one proxy, borrowed cookies or your working rhythm, none of it read here.
- Only profiles on this computer are counted, and only ones outside the recycle bin. Profiles a colleague keeps on another machine are not in the number.
- The clock is reported field by field and stays out of the twin verdict. Two profiles can be named twins with different time zones.
How to check
The report is one function, and a stand holds the diversity behind its numbers.
- Every profile on this computer is compared and twins are named
- apps/desktop/src/main/main.js · apps/desktop/src/main/manager-preload.js
- Six fields decide a twin and five are counted one by one
- apps/desktop/src/main/main.js · apps/desktop/src/manager/renderer.js
- A hundred desktop profiles are close to a hundred different browsers, language and clock counted in
- apps/desktop/test/fingerprint-consistency.js
- Clocks and languages spread instead of following the owner
- packages/shared/src/index.js · apps/desktop/test/fingerprint-consistency.js
- How many machines a hundred profiles add up to, and how big the largest identical group gets
- packages/shared/scripts/различимость.js
Questions
- Does it open a browser to answer?
- No. The machine is derived from the profile number and template, so all profiles are compared at once.
- How many twins are too many?
- One is already a link between two accounts. The panel turns amber at one or two and red at three, because a group on one machine reads as one person.
- Why does memory always look shared?
- Chrome reports at most 8 GB whatever the machine holds, so memory separates almost nobody. The card and the screen do the work.
- Two profiles on one phone model, is that bad?
- Far less than on a desktop. There are 22 handsets in the pool, and real phone traffic repeats models the same way.
- Does a proxy country change the answer?
- Not the count of machines: the signature has no zone in it. It does replace the clock and the language list.
Count your own machines
Open the fingerprint window of any profile and press Compare with other profiles.