all trackers hate this one trick

all trackers hate this one trick

This ones my fave: https://amiunique.org/fingerprint
It shows the percentages of people who use your same browser features (called similarity ratios), and can determine whether you're unique in their dataset. Can help for tweaking browser settings to try to make yourself not unique.
TIL LibreWolf randomizes some fingerprinting targets.
Attribute number 1 already says 0%. We're done here.
Is there no add on, for Firefox, for example, to stop or confuse fingerprinting?
Any suggestions?
For Android.
My Mum always said I was unique.
Now I have proof!
Just being in Australia, and setting the timezone correctly gets you to below 0.6%
😒
i used to think that firefox on linux and as plain-jane-generic as you could get besides windows; but no, i'm ultra unique:
Yes! You are unique among the 5084762 fingerprints in our entire dataset.
Somehow safari on an iPhone is also unique.
Check next week or in a new private tab now, prob be unique then too—think Apple’s fuzzing/reporting some noise/junk data for us.
Canvas:

& WebGL:

gotta be noisy, here’s hoping!
Look at my epic WebGL render: 
EFF updated their site since last check months ago, seeming to confirm theory

Nice (& I’m unique again on AmIUnique)
I am unique cause I set language to EN-GB :D I guess their dataset is us centric
that's pretty comprehensive, and similarity ratios show how easy it is to create a unique fingerprint for somebody if you hash a few of these metrics together for example.
dang, even with vanadium on graphene i am very uniquely identified. I suppose it can't be helped these days.
what does "You are unique among the 5119710 fingerprints ..." mean?
"We know your IP address". No kidding, that's how IPv4 works, even if the browser wasn't leaking offering it.
The point is not that they know your IP, but that even your IP already gives away information. That's why they start with the information, rather than the IP being the source.
This is not intended to be for people who understand how this works.
And as someone else said, probably vibe coded.
I understand how all of it works. Whether it's vibe coded or not it, it showed me stuff that I didn't think about like arbitrary web pages can know my phone tilt, battery level??
The opsec implications are severe.
Oh yeah, it's insane. The only way to truly protect your identity on the internet is by not using the internet. Second best would be tor, I suppose
The public IP is irrelevant, only shows the IP of the server used by your ISP, which can be at the other side of the country. It can maybe identify the ISP, but not the user, less if a dynamic changing IP is used. The public IP is always leaked if you don't use a VPN or the TOR network.
Absolutely not, the public IP a website sees is your home IP. The resolved location will be inaccurate by design, but the IP definitely identifies you at that time.
depends on the isp, my router has its own adress on the iternet
couple of friends have a different isp that layers it users behind multiple nats so half the city would show the same ip on a website
I've never heard of that kind of network, is that a US thing? I can't imagine having my traffic routed, as the person I replied to said, to the other side of the country before being routed to the proper destination. That is so incredibly inefficient and unnecessary. Not to mention the single point of failure.
Edit: And it makes hosting a public facing server at home a nightmare... I see no benefit to this except not having to get a large IP range to properly assign them to your customers, which sounds like capital efficiency rather than decent user experience. Did I get it right, is this a US thing? :D
Edit 2: And there are a lot of systems IP-banning abusers (it is, in fact, one of the most basic recommendations), meaning that if someone sharing that public IP gets IP banned, the entire customer group sharing the IP is troubled. Even worse if it ends up on a shared blacklist...
What the website see is the current IP of the used ISP server in this moment. In the last check it was Madrid, several hundreds km from my real home. The public IP isn't the same as my user IP, which only know my ISP and I (and the police by the ISP, if exist a court order). The public IP don't show your real location, the website only can use your GPS data if you have it activated or if it appears in your account data (Google, Google Maps).
The public IP location is not precisely your location because your IP address does not convey that information at all. Services that locate an IP guesstimate based, mostly, on what range your IP is a part of, and what public data is available about that range.
I'm not sure about Spain (pretty confident it is the same, only a capitalist hellhole would do what you suggest), but in France and the Netherlands at least, your IP (the one a website sees) is always yours and yours only, not the IP of some ISP server.
If you can open your ports in your router and access them from the internet, then your public IP is yours. Most people can (even with a dynamic IP). If it was an ISP server, you wouldn't be able to.
The thing a european ISP usually do is assign a dynamic IP, so that while your IP is assigned to your home router and yours only at a moment in time, it will likely change the next day, and will always change on a reboot of your router. But it still is your router's IP at that moment in time, not a random ISP server. IPs are not physically assigned to a device
My home IP is mine, fixed, and I can verify that it is indeed my router. Yet the location of it according to locators is the other side of the country. The location locators give you for your IP being different to your actual location is not a proof that your public IP is not your actual home IP at all. And that is because an IP is not tied to a location and only your ISP can tell the location of their IPs.
Depending on your location it can actually be geolocated into your specific city block, I geolocated an online friend's IP just for the hell of it (I already knew where they lived) and it spit back out the city block they lived in as well as a lot of other very identifiable information
Also, if you can ping devices on that network using that IP you can also use that as a way to easily identify users. That's if they have anything that isn't firewalled, obviously, but the point stands!

And yet here they are showing me their webpage in darkmode 😒
Funny how websites can read the gyroscope. It can also be used as a microphone. https://crypto.stanford.edu/gyrophone/
Madness! This entire shit show should incur a stalking charge. It’s disgusting this is even allowed.
Well they tried

This post helped me discover that my SurfShark VPN built-in kill switch does not work within the Android app. My home IP was showing.
I turned kill switch on at the OS level and my IP was correctly showing the VPN IP.
How can you tell that it was vibe coded? Genuine question.
One clue to me is the "how many times you moved" statement. One actual human "move" is worth hundreds of what the site calls a move. A human would notice that but the reality of it means nothing to an AI.
Secondly just the language used being quite dramatic but also generic.
You know it's just counting the change in acceleration in your phone's gyroscope chip or whichever it is. If you are typing something the phone "moves" twice with each swipe.
This page is just putting numbers it's collecting from your phone into a template paragraph.
LLMs always write with a very dramatic tone. I really hate that high impact language now.
Great news. My VPN is working!
I'm glad it acknowledges explains the impacts of anti-fingerprinting measures. I've seen some others assume that a random canvas is unique rather than one of the many people randomising it the same way, leading to a false "unique" assessment.
Your browser appears to be returning the viewport in place of the real screen — anti-fingerprinting at work. The substitution is itself distinctive.
Your browser masked your graphics processor. Firefox and Safari have started returning generic strings — "Mozilla", "Apple", "or similar" — instead of the real renderer. The fact that yours did so tells us, with reasonable confidence, which browser you are running. The mask is also a fingerprint.
Does it matter for fingerprinting if the information is misleading? Unless it’s changing dynamically I guess it’s still helps in identifying a user
Your finger moved 899 times.. what????
It seems to count a swipe as a series of dozens of movements. Probably to show there's a clear fingerprint even in how exactly you move your finger.
Websites don't just get a "swipe" command. They know exactly where your finger is on the screen at any given moment.
I found it interesting that it knows my battery level and current orientation of the phone.
I can understand the latter since it might want to render differently, but why does it need to know the battery level?
Potentially to activate battery-saving features? Like AMOLED-black mode if your battery is <15 % or something (and your screen is AMOLED)
Shouldn't that be the provenance of the device itself though. My phone already allows me to set a threshold when it should go to night mode for example. The system can tell the browser to switch rendering to night mode. There's no real reason for the browser then to report to the site.
So that Uber will charge you a higher rate when the battery is low
I don't even know it it's /s anymore
On Firefox android both the battery level and graphics card information were not available. But it was described as another data point regardless.
It got my phone's orientation wrong
This volume requires JavaScript. That is part of the point — your browser is what is being read.
Looks like I'm safe
So a prettier and minimal version of https://coveryourtracks.eff.org/ ?
Kinda like they feed Cover Your Tracks to an LLM’s template so you can experience the data in narrative form
(No LLM used when you visit the site, just when they built it, is what I’m guessing here)
This is a much more detailed, less "fear mongering AI" version of the other website. Thanks for sharing!
Time to start installing and uninstalling random fonts everyday.
And then you become even more identifiable cause you're part of the 10 madmen in Google's database who do it
Or you could use chameleon browser extension.
It changes your data every 5 minutes
I have ~2,000 fonts installed. I thought it would say something about it.
Opend it in Tor Browser inside a Whonix dispVM inside Qubes OS it got nothing on me
I wonder, do phones have 6dof tracking (space + rotation) or 3dof tracking (just rotations)
because if it's 3dof I'm calling bullshit on some of this.

I have 7 3dof fullbody trackers for vrchat (cough cough !VRChat@sh.itjust.works cough cough) and they're so damn inconsistent and need to constantly be ready to be calibrated to line up with what your body is actually doing. Having 1 3dof device can definitely detect walking or swinging, no shot it can tell if you're in bed or on a couch
It told me I was likely sitting while I was sitting at my dining table. I assume if your phone is angled more towards the ground it would say you're in bed.
why would my browser share a list of fonts?
so the site knows what it can render
I don't anything about web development, so I assumed websites told browsers: 'Hey type this text in X font.' If the machine didn't have that font the browser would fall back to another font.
That is how it works, but that fall back tells the website what is and isn't available. Websites don't get a list provided by your browser- this website tests a big list of them:
/* Fonts — measured via width comparison; the device names what it carries */ const testFonts = ['Helvetica Neue','Georgia','Courier New','Comic Sans MS','Impact','Trebuchet MS','Palatino','Garamond','Futura','Gill Sans','Verdana','Tahoma','Lucida Console','Cambria','Consolas','Menlo','Monaco']; const installed = []; const probe = document.createElement('span'); probe.style.cssText = 'position:absolute;left:-9999px;font-size:72px;visibility:hidden'; probe.textContent = 'mmmmmmmmlli'; document.body.appendChild(probe); probe.style.fontFamily = 'monospace'; const baseW = probe.offsetWidth; testFonts.forEach(f => { probe.style.fontFamily = '"' + f + '",monospace'; if (probe.offsetWidth !== baseW) installed.push(f); }); document.body.removeChild(probe);
I use a custom font on one of my websites with the font files hosted on my server, which it offers to the browser, but it can be overridden by user accessibility settings
that would be a sensible way to do it, but turns out the browser leaks a lot of this information to the site because reasons
Further, why are the fonts unique? Why doesn’t every phone of the same model with the same languages have the same fonts enabled?
top 100 comments