Change info of OS and phonenumber that webpages can see?

[Mike3]

So, I noticed some webpages manage to see info on what OS I use.

Can they also see kernel version?

When using a friends computer there was even a webpage that could see his phonenumber connected to his modem, which was a smartphone.

So I assume the webpages read this information from some file somewhere.

Is it possible to change this information / text / file, so that there is other information there. I.e. trick or fool the webpages one visits, so that they think I am using for example windows 10 or 11 or whatever the latest version is? Same with phonenumber connected to modem?

[Feek]

You can switch the user agent (e.g. by adding an extension to your browser).

This site could provide you some usefull information:

Code: Select all

https://www.whatismybrowser.com

[Flash]

It seems that a smart phone will promiscuously give its GPS coordinates to anyone who asks: https://www.youtube.com/watch?v=fZtWRzcmh0Y