User-agent: Googlebot
Disallow: /bbs/
Disallow: /search/

User-agent: Bytespider
User-agent: MegaIndex.ru
User-agent: SemrushBot
User-agent: AhrefsBot
User-agent: dotbot
User-agent: MJ12bot
User-agent: Amazonbot
Disallow: /

User-agent: *
Allow: /