User-agent: Googlebot
Disallow: 
User-agent: MSNBot
Disallow: 
User-agent: Slurp
Disallow: 
User-agent: Teoma
Disallow: 
User-agent: twiceler
Disallow: 
User-agent: Gigabot
Disallow: 
User-agent: ia_archiver
Disallow: 
User-agent: baiduspider
Disallow: 
User-agent: naverbot
Disallow: 
User-agent: yeti
Disallow: 
User-agent: *
Disallow: 
Crawl-delay: 20