百度爬虫(Baiduspider):
Baiduspider+(+http://www.baidu.com/search/spider.htm")
google爬虫(Googlebot)
Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)
Googlebot/2.1 (+http://www.googlebot.com/bot.html)
Googlebot/2.1 (+http://www.google.com/bot.html)
Googlebot-Image/1.0
雅虎爬虫(Yahoo! )
Mozilla/5.0 (compatible; Yahoo! Slurp China; http://misc.yahoo.com.cn/help.html")
Mozilla/5.0 (compatible; Yahoo! Slurp; http://help.yahoo.com/help/us/ysearch/slurp")
新浪爱问爬虫 (iaskspider)
iaskspider/2.0(+http://iask.com/help/help_index.html")
Mozilla/5.0 (compatible; iaskspider/1.0; MSIE 6.0)
搜狗爬虫(Sogou)
Sogou web spider/3.0(+http://www.sogou.com/docs/help/webmasters.htm#07)
Sogou Push Spider/3.0(+http://www.sogou.com/docs/help/webmasters.htm#07)
Sogou Pic Spider/3.0(+http://www.sogou.com/docs/help/webmasters.htm#07)
搜搜爬虫(Sosospider)
Sosospider+(+http://help.soso.com/webspider.htm)
网易有道爬虫(YoudaoBot)
Mozilla/5.0 (compatible; YoudaoBot/1.0; http://www.youdao.com/help/webmaster/spider/; )
360(360Spider)
Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0); 360Spider
MSN爬虫(msnbot)
msnbot/1.0 (+http://search.msn.com/msnbot.htm)
bing必应爬虫(bingbot)
Mozilla/5.0 (compatible; bingbot/2.0; +http://www.bing.com/bingbot.htm)
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