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Disallow: / 
User-agent: MJ12bot
Disallow: / 
User-agent: ia_archiver
Disallow: / 
User-agent: rogerbot
Disallow: / 
User-agent: spbot
Disallow: / 
User-agent: ScoutJet
Disallow: / 
User-agent: *
Disallow: /?blackhole
User-agent: gsa-crawler
Disallow: /