timestamp	ip	host	browser	uri
20170414-10:51:50	162.243.206.136	162.243.206.136	rogerbot/1.1 (http://moz.com/help/guides/search-overview/crawl-diagnostics#more-help, rogerbot-crawler+pr4-crawler-15@moz.com)/Nutch-1.13	/robots.txt