As long as your "empty" pages are correctly returning a 404 (or 410) status code, you should not have to worry about any ranking drop in the new domain. Google will treat the URLs as removed - which they were - and eventually reduce the crawl frequency on them.


A site: search is not a reliable way of showing what is indexed. It shows indexed pages as well as redirecting pages that are not indexed. While URLs from your redirecting domain show up in a site: search for that domain, your redirecting domain won't show up in any normal Google search query. If you want to see what is indexed on your alternate domain, ...

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