How do sites calculate users?

Question

User identification

Hello, please tell me, I had such a situation that on one site they blocked, well, I thought that according to the standard scheme by ip, I changed ip, cleaned the browsers completely to zero, there are no plugins and extensions, I changed the user agent, everything works, an hour later they blocked it again like it's me and I have another account already blocked, I tried vpn, changing the Mac address, which the site allegedly cannot recognize, did not help, I got interested, tried everything possible, HOW do they do it? Is it really through js that they pull out all the information about the characteristics of the computer? changed the name of the processor and video card. The only option is something that can be tracked by behavior, but I tried to behave differently on the site - it's useless. Well, not psychics, what options do they have to find out that it's me, and not someone else? By the way, Avito also somehow recognized at one time in a similar way, and also not immediately, but after a while

Answer 1

If you are interested in this topic, check out this channel There are webinars, long, but very interesting!
And also for social networks, you can search for videos on YouTube Arthur Khachuyan , he tells how social networks collect information about you, etc.)