timestamp	ip	host	browser	uri
2017:03:12:06:11:10	106.120.173.109	sogouspider-106-120-173-109.crawl.sogou.com	Sogou web spider/4.0(+http://www.sogou.com/docs/help/webmasters.htm#07)	/robots.txt
20171029-02:02:15	106.120.173.109	sogouspider-106-120-173-109.crawl.sogou.com	Sogou web spider/4.0(+http://www.sogou.com/docs/help/webmasters.htm#07)	/robots.txt