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Hi Joao, 1- DA drop, that could be many reasons. Considering the case that you've not done any major updates and/or created spammy links or disavowed them (in moz's tool) then, its possible that the top domains increased their authority, as they DA cant increase over 100, it makes the lower DA domains to decrease. 2- It's hard to say why your site drop some rankings without your site's URL. If its the case that you have not made any changes and/or created spammy links or disavowed links (in Google Search Console), then its likely that your competitors made some improvements. Keep in mind that DA/PA or any other metric outthere does not tell the quality of any site. its just an approximation of what that tool understands about google algorithms. More info here: Mozscape API updates Open Site Explorer Guide - Moz Help hub Hope it helps. Best luck. GR.