*Title should be: "Ability to filter other 'results pages' from kagi search results"
This might not necessarily be possible... but somebody might have a clever idea for dealing with this.
The problem is when other websites allow their internal search/results pages to be indexed, which end up in Kagi search results. See example:

The top result is just a link to Amazon's internal search page. It's not always a major problem since regular results can also be seen, but in some cases I've had 90% of the results be links to platform search pages when I'm doing a more niche search.
It's not isolated to Amazon. I've seen this happen with other websites, and honestly, it's search engine pollution - a way of forcing users onto their internal platform where they control the tracking and the results.
A crude workaround is using the exclusion search operator with INURL and my search terms in URL syntax, e.g:
-inurl:"microsoft+surface+charger" But this isn't perfect since the platform will return various permutations of my query.
I'm not sure how an ideal solution would look.
Perhaps a toggle "exclude platform results pages" or "exclude search-in-search results" or maybe "exclude external platform search engines". I don't know what the best term would be.
As for how to detect these kinds of results, I don't have a great solution there either. Some sites have obvious 'search query' syntax in the URL which could be detected, but this is not always the case.