Google: it’s okay to list a URL twice in a disavow links file

In a tweet, Google’s John Mueller said that it was okay to list a URL twice in a disavow links file:

@Photogkris @mattcutts Duplicates don't cause problems (but make your maintenance harder). I sort text-files before submitting 🙂

— John Mueller (@JohnMu) 30. Oktober 2014

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