User-agent: *
Disallow:

# too many repeated hits, too quick
User-agent: litefinder
Disallow: /

# Yahoo. too many repeated hits, too quick
User-agent: Slurp
Disallow: /

# too many repeated hits, too quick
User-agent: Baidu
Disallow: /

User-Agent: Googlebot
Allow: /

User-agent: Googlebot
Disallow: /*?