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Disallow: /forum/?act=
Disallow: /forum/?showuser=
Disallow: /forum/lofiversion

User-agent: Googlebot
Disallow: /forum/index.php
Disallow: /forum/?act=
Disallow: /forum/?showuser=
Disallow: /forum/lofiversion

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Disallow: /forum/index.php
Disallow: /forum/?act=
Disallow: /forum/?showuser=
Disallow: /forum/lofiversion