Please see their article [1] for details, before claiming something is impossible.
TL;DR: They check how many ads and trackers are on websites and punish those in the sorting.
Most of the useless websites are full of affiliate links, ads and tracking so they naturally get downgraded.
If you’re talking about a niche topic with only one result you obviously still get that one result, but I’d argue for most search terms the issue lies in ordering the very many results.
If you’re talking about a niche topic with only one result you obviously still get that one result, but I’d argue for most search terms the issue lies in ordering the very many results.
[1] https://blog.kagi.com/search-enhancements