User-agent: *
Disallow: /admin/

User-agent: Googlebot
Disallow: 

User-agent: Bingbot
Disallow: 

User-agent: Yahoo-slurp
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User-agent: Baiduspider
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User-agent: Yandex
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User-agent: Sogou
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User-agent: DuckDuckBot
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User-agent: MJ12bot
Disallow: 

User-agent: AhrefsBot
Disallow: 

User-agent: SemrushBot
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User-agent: Majestic-12
Disallow: 

User-agent: SEOkicks-Robot
Disallow: 

User-agent: SEOkicks
Disallow: 

User-agent: MJ12bot/v1.4.8
Disallow: 

User-agent: *
Disallow: /