timestamp	ip	host	browser	uri
20201107-10:02:59	49.7.21.144	49.7.21.144	Sogou web spider/4.0(+http://www.sogou.com/docs/help/webmasters.htm#07)	/robots.txt
20201207-10:04:19	49.7.21.144	49.7.21.144	Sogou web spider/4.0(+http://www.sogou.com/docs/help/webmasters.htm#07)	/robots.txt