# disallow all 
User-agent: *
Disallow: /
Crawl-delay: 600

# but allow only important bots
User-agent: Googlebot
Disallow:
User-agent: Googlebot-Image
Disallow:
User-agent: Googlebot-Media
Disallow:
User-agent: Adsbot-Google
Disallow:
User-agent: Googlebot-Mobile
Disallow:
User-agent: Mediapartners-Google
Disallow:
User-agent: DuckDuckBot
Disallow:
User-agent: BingBot
Disallow:
User-agent: msnbot
Disallow:
User-agent: msnbot-media
Disallow:
User-agent: Slurp
Disallow:
User-agent: Yahoo-Blogs
Disallow:
User-agent: Yahoo-MMCrawler
Disallow:

Disallow: /cgi-bin/
Disallow: /zOLDsite/