User-agent:Googlebot
Disallow:/

User-agent:Baiduspider
Disallow:/

User-agent:bingbot
Disallow:/

User-agent:Sogou web spider
Disallow:/

User-agent:Sogou wap spider
Disallow:/

User-agent:YisouSpider
Disallow:/

User-agent:BaiduSpider-ads
Disallow:/

User-agent:*
Disallow:/