User-agent: ia_archiver
Disallow: /
User-agent: Googlebot
Disallow: 
User-agent: googlebot-image
Disallow: 
User-agent: googlebot-mobile
Disallow: 
User-agent: MSNBot
Disallow: 
User-agent: baiduspider
Disallow: 
User-agent: facebookexternalhit  
Disallow: 
User-agent: Facebot  
Disallow: 
User-agent: *
Disallow: /
Crawl-delay: 20