About search queries in cookies

The other day I read a note about advertising Webbalts. And today I had to look at the communication of the browser with the http-server. It happened by chance that the test took place on the page where I came to the search engine. And by chance I noticed the cookie. Cookies, of course, contained my request. Cookies have remarkable names, I have seen them before on other sites, I just did not pay attention. Obviously, this is not a banner set cookies, because the site for testing (postgresql.org) in general has no banners.

I looked at who else uses such cookies, it turned out that such sites are decent. Obviously, someone else’s can’t put the same cookies on different domains, this can only be done using JS, which is connected via script src. And who we have on all (Russian and non-Russian) sites? That's right, google apps.

So what is the output? Google adds a search query to a cookie, a banner that is connected in the same way (via script src), reads this query and uses it as it wants. Even if the twisters never stood on the site and it suddenly appeared, the use of Google cookies makes it possible to look at the search query that led to this site. Then I understand it was lazy, maybe in the cookies and there is some kind of guid, pass-through for all sites. It would be the most fun - anyone can collect end-to-end statistics. So I just put a Google blocker so that they no longer considered me.
')
Will this somehow affect the display of ads on Webbalts for me? It will affect, of course - I have already come to the conclusion that it is necessary to find adblock, which can block absolutely all JS from external domains, in order not to enter them manually every time in the filter.