timestamp	ip	host	browser	uri
20170420-03:43:54	64.62.252.169	64.62.252.169	BUbiNG (+http://law.di.unimi.it/BUbiNG.html)	/robots.txt
20180403-10:10:29	64.62.252.169	64.62.252.169	BUbiNG (+http://law.di.unimi.it/BUbiNG.html)	/robots.txt