User-agent: searchpreview
Disallow: /
User-agent:BecomeJPBot
Disallow: /
User-agent:BecomeBot
Disallow: /
User-agent:Yeti
Disallow: /
User-agent:Naver
Disallow: /
User-agent:Baiduspider+
Disallow: /
User-agent:Baiduspider
Disallow: /