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First of all, Google doesn't use Moz spam score: https://support.google.com/webmasters/thread/2440327?hl=en So, if your Moz spam score is high because of "spammy" backlinks it doesn't mean that Google considers your site as spammy. You can check the spam score for every linking domain in the Link Explorer. If there are too "spammy" domains take the necessary actions (disavow them in GSC as the last resort). It can take a few weeks for Google to process the information that you upload. Your list will be incorporated into our index as we recrawl the web and reprocess the pages that we see. Please check following thread for more details: https://support.google.com/webmasters/thread/10239497?hl=en When we did for our website it took less than 2 weeks.