User-agent: SemrushBot
Disallow: /
User-agent: SiteAuditBot
Disallow: /
User-agent: SemrushBot-BA
Disallow: /
User-agent: SemrushBot-SI
Disallow: /
User-agent: SemrushBot-SWA
Disallow: /
User-agent: SemrushBot-CT
Disallow: /
User-agent: SemrushBot-BM
Disallow: /
User-agent: SplitSignalBot
Disallow: /
User-agent: SemrushBot-COUB
Disallow: /
User-agent: Applebot         # apple
Disallow: /          # disallow this directory
User-agent: MJ12bot
Disallow: /
User-agent: AhrefsBot
Disallow: /