/new-preview/

This URL on the old site holds a preview of an earlier homepage redesign. It is not real content, but it is in the sitemap and is indexable, which means Google may be treating it as a duplicate of the homepage.

Recommended action

Do not recreate it. Instead: 301-redirect /new-preview/ to /, and remove it from the sitemap. If it needs to stay reachable for internal review, set it to noindex and exclude it from the sitemap.

This file is a note for the developer, not a page to publish.