Canvas spoofing is one of the most powerful tool of Kameleo.
The technique is based on the fact that the same canvas image may be rendered differently in different computers. This happens for several reasons. At the image format level – web browsers uses different image processing engines, image export options, compression level, the final images may got different checksum even if they are pixel-identical. At the system level – operating systems have different fonts, they use different algorithms and settings for anti-aliasing and sub-pixel rendering.
Kameleo can simply override the way how the graphics are being drawn on the canvas. This way it can be very different. See image below.
The problem with it is that it will be 100% unique (as you can see on browserleaks.com/canvas)
Intelligent Canvas Spoofing
Kameleo has a feature called Intelligent Canvas Spoofing. This case the canvas data will come from the Base Profile and the Machine Learning algorithm on browserleaks.com/canvas won’t see at all that the canvas is spoofed.
Canvas spoofing is one of the most powerful tool of Kameleo. Many websites using it to identify your device so there are a lot of privacy tools that help to hide it but none of them can spoof it like Kameleo.
Privacy tools may block canvas but then you will be unique because not too many users are blocking it. Most of the sites may block you then.
Other tools may simply override the how your canvas is drawn for every profile. This worked a couple of years ago but lately Machine Learning Algorithms can realize those fake canvases. This is the case when you see 100% uniqueness on browserleaks.com/canvas .
In Kameleo there is an enhanced way of spoofing. It results a natural canvas that is spoofed. Websites won’t see that you are changing your canvas but it will be different for all your virtual profiles.
An often asked question
Canvas is not spoofed. For 2 profiles I see the same hash on browserleaks.com/canvas
Now worry, it is not a problem. It happens because you choose 2 really similar configuration. 2 very similar chromes will render canvas the same way. This is how the Machine Learning Algorithm can tell for example that you are using Chrome with Windows.
If you try different configurations:
- MacOS – Chrome
- Windows 7 – Chrome
- Windows 10 – Chrome
You should see they have totally different signatures. Exactly how it should be.
If you see what browserleaks says: out of 474678 user agents 1131 will be the same. So 0.24% of the user agents are the same. If you want a unique fingerprint for sure you should disable the intelligent canvas spoofing but that may not guarantee consistency.