User-agent: *
Allow: /

User-agent: Baiduspider
User-agent: 360Spider
User-agent: Yisouspider
User-agent: PetalBot
Disallow: /

User-agent: Bytespider
Disallow: /

User-agent: Sogou web spider
Disallow: /

User-agent: Sogou inst spider
Disallow: /

User-agent: Amazonbot
Disallow: /

User-agent: MJ12bot
Disallow: /

User-agent: *
Disallow: /*blackhole
Disallow: /?blackhole