timestamp	ip	host	browser	uri
20190729-08:26:27	54.36.149.0	ip-54-36-149-0.a.ahrefs.com	Mozilla/5.0 (compatible; AhrefsBot/6.1; +http://ahrefs.com/robot/)	/robots.txt
20210515-05:38:47	54.36.149.0	ip-54-36-149-0.a.ahrefs.com	Mozilla/5.0 (compatible; AhrefsBot/7.0; +http://ahrefs.com/robot/)	/robots.txt