New answers tagged domain-forwarding
It won't harm your website. Make proper 301 redirection of your old domain. e.g. www.badges-and-buttons.com 301 redirect to www.badges-buttons.com Also, read this http://stackoverflow.com/questions/8450573/how-to-301-redirect-an-entire-domain-while-preserving-the-path
Google punishments If both sites are the same and both sites are in the index then yes, one will be marked as duplicate. Do a site: www.example.com` as a search on Google. Generally what normally happens is when a site is marked duplicate it will noted by Google and if enough pages and content gets marked as duplicate the site will receive a punishment ...
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