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Hi, I haven't actually done this myself, but the best way to handle it is after the move and the www-version of the site has been verified in GWT, just check to see if the disavow file exists there. If it doesn't just re-add it. The fact that you are redirecting from a non-www to www, means that your disavow document will still be fine to use, as it applies to the new site too. -Andy