timestamp	ip	host	browser	uri
20170411-15:59:28	203.133.168.105	203.133.168.105	Mozilla/5.0 (compatible; Daum/4.1; +http://cs.daum.net/faq/15/4118.html?faqId=28966)	/robots.txt
20170512-13:54:48	203.133.168.105	203.133.168.105	Mozilla/5.0 (compatible; Daum/4.1; +http://cs.daum.net/faq/15/4118.html?faqId=28966)	/robots.txt