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Disallow: / 

User-agent: Yahoo-MMCrawler
Disallow: / 

User-agent: psbot
Disallow: /

User-agent: asterias
Disallow: /

User-agent: label-grabber
Disallow: /

User-agent: roadrunner
Disallow: /

User-agent: ecollector
Disallow: /

User-agent: downloadexpress
Disallow: /

User-agent: cydralspider
Disallow: /