User-agent: *
Disallow: /

User-agent: Googlebot
Disallow: 

User-agent: Bingbot
Disallow: 

User-agent: DuckDuckBot
Disallow: 

User-agent: Slurp
Disallow: 

User-agent: Baiduspider
Disallow: 

User-agent: YandexBot
Disallow: 

User-agent: MegaIndex
Disallow: /