User-agent: SemrushBot
Disallow: /

User-agent: AhrefsBot
Disallow: /

User-agent: dotbot
Disallow: /

User-agent: BLEXBot
Disallow: /

User-agent: MJ12bot
Disallow: /

User-agent: barkrowler
Disallow: /

User-agent: Bytespider
Disallow: /

User-agent: DataForSeoBot
Disallow: /

User-agent: Meta-ExternalAgent
Disallow: /

User-agent: Amazonbot
Disallow: /

User-agent: *
Crawl-delay: 1