User-agent: Yahoo! Slurp
Disallow: /  

User-agent: Slurp
Disallow: /

User-agent: Yahoo!Slurp
Disallow: /

User-agent: Yahoo Slurp
Disallow: /

User-agent: iaskspider
Disallow: /

User-agent: msnbot
Disallow: /

User-agent: YoudaoBot
Disallow: /

User-agent: Sogou web spider
Disallow: /