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It looks as if they are indexing the content they are crawling, which could lead to a duplicate content penalty. I have found this link on their site http://web-archive-uk.com/form_remove_my_site_from_archive and would suggest removing your site from their index.
It looks as if they are indexing the content they are crawling, which could lead to a duplicate content penalty. I have found this link on their site http://web-archive-uk.com/form_remove_my_site_from_archive and would suggest removing your site from their index.