User-agent:  Baiduspider
Allow:  /

User-Agent:  Googlebot
Allow:  /

User-agent:  Bingbot
Allow:  /

User-Agent:  360Spider
Allow:  /

User-Agent:  Yisouspider
Allow:  /

User-Agent:  Sogouspider
Allow:  /

User-Agent:  Yahoo!  Slurp
Allow:  /

User-agent: *
Disallow: /