You don't need such a complex analysis, it's actually much simpler: you are mostly shown websites that try to make money from you, because those are the ones op

You don't need such a complex analysis, it's actually much simpler: you are mostly shown websites that try to make money from you, because those are the ones optimizing as hell to be at the front of the search. Any other website, where people just share information freely, where you might get different opinions, experiences, hell, _anything that is different from just trying to sell you something_ (even if it is ads), will be very far in the back.