User-agent: spbot
Disallow: /
User-agent: dotbot
Disallow: /
User-agent: AhrefsBot
Disallow: /
User-agent: Baiduspider
Disallow: /
User-agent: baiduspider
Disallow: /
User-agent: Ezooms
Disallow: /
User-agent: MJ12bot
Disallow: /
User-agent: Yandex
Disallow: /
User-agent: YandexBot
Disallow: /

User-agent: *
Crawl-delay: 30