User-agent: * 
Disallow: /bitrix
User-agent: Slurp
Disallow: /
User-Agent: Googlebot-Image
Disallow: /
User-Agent: Googlebot-Mobile
Disallow: /
User-agent: StackRambler
Disallow: /

User-agent: Slurp
Crawl-delay: 100
User-agent: Twiceler
Disallow: /
User-Agent: W3C-checklink
Disallow: /