#To block SemrushBot from crawling your site for different SEO and technical issues:
User-agent: SiteAuditBot
Disallow: /

#To block SemrushBot from crawling your site for Backlink Audit tool:
User-agent: SemrushBot-BA
Disallow: /

#To block SemrushBot from crawling your site for On Page SEO Checker tool and similar tools:
User-agent: SemrushBot-SI
Disallow: /

#To block SemrushBot from checking URLs on your site for SWA tool:
User-agent: SemrushBot-SWA
Disallow: /

#To block SemrushBot from crawling your site for Content Analyzer and Post Tracking tools:
User-agent: SemrushBot-CT
Disallow: /

#To block SplitSignalBot from crawling your site for SplitSignal tool:
User-agent: SplitSignalBot
Disallow: /

#To block SemrushBot-COUB from crawling your site for Content Outline Builder tool:
User-agent: SemrushBot-COUB
Disallow: /