That is a good startingpoint, but also something SEO can very easy hack. Obfusicating the usual hints of a popular CMS is not hard.
I wonder whether doing a parallel search on google and filter out by their top-results from your own results would be a feasiable solution? Add a filter on the top 500 websites, and whether known ad-sources are used and you might get slowly there.
Maybe instead of a smart searchengine it would be better to focus on a dumb focus which gives access to all the metadata of a page too, and allows people to optimize for themself. Fulltext alone is not the only relevant content for good results. Google knows it and uses them, but has very limited acces to it for the enduser.
I wonder whether doing a parallel search on google and filter out by their top-results from your own results would be a feasiable solution? Add a filter on the top 500 websites, and whether known ad-sources are used and you might get slowly there.
Maybe instead of a smart searchengine it would be better to focus on a dumb focus which gives access to all the metadata of a page too, and allows people to optimize for themself. Fulltext alone is not the only relevant content for good results. Google knows it and uses them, but has very limited acces to it for the enduser.