User-agent: *
Disallow:
# spam-bots
User-agent: AhrefsBot
Disallow: / 
User-agent: MJ12bot
Disallow: / 
User-agent: rogerbot
Disallow: / 
User-agent: spbot
Disallow: / 
User-agent: ScoutJet
Disallow: / 
User-agent: gigabot
Disallow: /
User-agent: dotbot
Disallow: /
User-agent: exabot
Disallow: /