User-agent: Googlebot
Disallow:
Crawl-delay: 3

User-agent: msnbot
Disallow:
Crawl-delay: 3

User-agent: bingbot
Disallow:
Crawl-delay: 1

User-agent: Slurp
Disallow:
Crawl-delay: 3

User-agent: ia_archiver
Disallow:
Crawl-delay: 3

User-agent: *
Disallow: /