User-Agent: ia_archiver
Disallow:

User-agent: Baiduspider
Disallow:

User-agent: Googlebot
Disallow:

User-Agent: bingbot
Disallow:

User-Agent: msnbot
Disallow:

User-agent: ccbot
Disallow:

User-agent: escan
Disallow:

User-agent: *
Disallow: /