Why am I (not only us) haunted by intrusive advertising of online stores?

Question

Browsers

Hello !
There is such a problem:
1) I open incognito mode on the browser
2) I go to some online store selling, say, flying saucers
3) I browse the goods and close the incognito mode
4) I go to Yandex (or mail.ru, it doesn’t matter) look at the mail, and there they show me the products that I viewed
Question: how does it work: cookie, localStorage, sessionStorage. What is it ? Obviously, in incognito mode, the data should not be saved, but then how does the code get access to what I bought?

Answer 1

https://xakep.ru/2010/12/28/54434/

Answer 2

adblock

Answer 3

Discover adblock and ghostery - solves all problems with ads.

Answer 4

I know a man who just works in the field of online advertising. So he just said that all this happens through cookies. And when he found out that I use adblock, he was very upset. =D

Answer 5

By ip they can ...
Cast: this person with this ip and incognito mode looked at such goods. If such data comes from another site on which you are, then .... we show you the goods)))

Answer 6

Most likely by cookie, possibly by IP, the whole system is very connected.

Answer 7

binding IP with User-agent is enough

Answer 8

Just because you're paranoid doesn't mean you're not being followed...