timestamp	ip	host	browser	uri
20190524-21:20:06	54.36.148.4	ip-54-36-148-4.a.ahrefs.com	Mozilla/5.0 (compatible; AhrefsBot/6.1; +http://ahrefs.com/robot/)	/robots.txt
20200228-05:59:23	54.36.148.4	ip-54-36-148-4.a.ahrefs.com	Mozilla/5.0 (compatible; AhrefsBot/6.1; +http://ahrefs.com/robot/)	/robots.txt
20210627-17:44:20	54.36.148.4	ip-54-36-148-4.a.ahrefs.com	Mozilla/5.0 (compatible; AhrefsBot/7.0; +http://ahrefs.com/robot/)	/robots.txt