User-Agent: sistrix
Disallow: /

User-Agent: MJ12bot
Disallow: /

User-Agent: rogerbot
Disallow: /

User-Agent: AhrefsBot
Disallow: /

User-Agent: SearchmetricsBot
Disallow: /

User-Agent: SemrushBot
Disallow: /

User-Agent: XoviBot
Disallow: /

User-Agent: seolytics
Disallow: /