User-agent: Baiduspider
  Disallow: 
User-agent: Googlebot
  Disallow: 
User-agent: Slurp
  Disallow: 
User-agent: Sosospider
  Disallow: 
User-agent: Sogouspider
  Disallow: 


User-agent: *
  Disallow: / 
  Disallow: /zghall521/