User-agent: crawl-18c.cuil.com
Disallow: /
User-agent: crawl-66-249-67-233.googlebot.com
Disallow: /
User-agent: crawl-66-249-67-45.googlebot.com
Disallow: /
User-agent: b3090861.crawl.yahoo.net
Disallow: /
User-agent: *   # directed to all robots
Disallow: /