User-agent: *
Disallow:
User-agent: lwp-trivial
Disallow: /
User-agent: LWP::Simple
Disallow: /
User-agent: SemrushBot-SA
Disallow: / 
User-agent: SemrushBot
Disallow: /
User-agent: AhrefsBot
Disallow: /
User-agent: BUbiNG
Disallow: /