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A particular site of mine ... if you search for it by url, google displays the active pages as well as all sorts of supplemental results with links to pages that no longer exist. How do I get Google to drop these pages .. it's been spidering the site regularly and several pages are fresh-tagged but it refuses to drop those supplemental result pages even though they return 404 errors when you click through.
If they are indeed 404 you can try the google console remove tool: [google.com...]
The only way out is to use the URL console to delist it. It will be gone in just a few days. However this also delists it in results where it might be a useful match for current content.
If the page is already 404 then use the URL contoller to delist it without worry.
I have some pages that return 404 header but the old cached version lingers in the supplemental index. I'ld love to get rid of then but I have been frightened off by the warning above.
Is it nothing to worry about?
The URL console has options to remove single pages, whole folders, or every page of a site. Choose which one you use, carefully.