User-Agent:  Googlebot
Disallow:  /

User-agent:  Bingbot
Disallow:  /

User-Agent:  360Spider
Disallow:  /

User-Agent:  Yisouspider
Disallow:  /

User-Agent:  Sogouspider
Disallow:  /

User-Agent:  Yahoo!  Slurp
Disallow:  /