Ghost content—stale pages hidden in archives or search caches—can silently drag...

https://www.bright-bookmarks.win/when-old-content-surfaces-unexpectedly-through-search-engine-caching-or

Ghost content—stale pages hidden in archives or search caches—can silently drag down your site’s authority and confuse users. If old, irrelevant material is still surfacing, it’s time for a surgical audit