[bun_at_work]

I don't know enough about SEO/web crawlers, so this might be a silly question, but there is a way to identify SEO optimized websites, right? Isn't there a special file or something?

Not sure if it'd be optimal, but dropping all search results with such optimization might bring a more broad search across the internet (more sites than just the common clickbait ones).

[_manifold]

Dropping SEO optimized results from a search is a bit of an oxymoronical idea. You'd essentially be punishing websites for simply ranking higher in search results which doesn't make sense.

[DenverCode]

The vast majority of SEO optimization at this point is through backlinks, internal keywords, meta tags, links, headings, keyword usage, etc.