User-agent: msnbot
Crawl-delay: 1

User-agent: Baiduspider
Disallow: /

User-agent: Yandex
Disallow: /

User-agent: AhrefsBot 
Disallow: /

User-agent: proximic
Disallow: /

User-agent: SemrushBot
Disallow: /

User-agent: SemrushBot-SA
Disallow: /