User-agent: baiduspider
Disallow: 

User-agent: Bingbot
Disallow: 

User-agent: Googlebot
Disallow: 

User-agent: msnbot
Disallow: 

User-agent: Naverbot
Disallow: 

User-agent: Slurp
Disallow: 

User-agent: Yandex
Disallow: 

User-agent: Yeti
Disallow: 

User-agent: ia_archiver
Disallow: 

User-agent: *
Disallow: /