| Used Operating Systems |
| 1 | 23468 | 35.09 | 229 | 1.60 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 12988 | 19.42 | 6366 | 44.43 | +http://ahrefs.com/robot/ |
| 3 | 6773 | 10.13 | 1634 | 11.40 | Windows NT |
| 4 | 6686 | 10.00 | 4271 | 29.81 | +http://www.baidu.com/search/spider.html |
| 5 | 3387 | 5.06 | 211 | 1.47 | +http://yandex.com/bots |
| 6 | 3326 | 4.97 | 1 | 0.01 | +http://megaindex.com/crawler |
| 7 | 3199 | 4.78 | 11 | 0.08 | +http://www.warebay.com/bot.html |
| 8 | 1819 | 2.72 | 5 | 0.03 | +http://OpenLinkProfiler.org/bot |
| 9 | 1127 | 1.69 | 558 | 3.89 | +http://www.google.com/bot.html |
| 10 | 982 | 1.47 | 239 | 1.67 | +http://www.linkdex.com/bots/ |
| 11 | 750 | 1.12 | 3 | 0.02 | Linux [unknown version] |
| 12 | 502 | 0.75 | 159 | 1.11 | +http://www.bing.com/bingbot.htm |
| 13 | 392 | 0.59 | 6 | 0.04 | +http://siteexplorer.info/ |
| 14 | 387 | 0.58 | 95 | 0.66 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 15 | 345 | 0.52 | 220 | 1.54 | +http://www.xovibot.net/ |
| 16 | 252 | 0.38 | 15 | 0.10 | +http://www.semrush.com/bot.html |
| 17 | 108 | 0.16 | 48 | 0.33 | Windows 98 |
| 18 | 97 | 0.15 | 92 | 0.64 | Windows 95 |
| 19 | 44 | 0.07 | 13 | 0.09 | +http://www.exabot.com/go/robot |
| 20 | 39 | 0.06 | 8 | 0.06 | http://help.yahoo.com/help/us/ysearch/sl... |
| 21 | 19 | 0.03 | 18 | 0.13 | Windows 2000 |
| 22 | 19 | 0.03 | 3 | 0.02 | +http://webmeup-crawler.com/ |
| 23 | 18 | 0.03 | 16 | 0.11 | MSIE 5.5; Windows NT 5.0 |
| 24 | 15 | 0.02 | 13 | 0.09 | Auto; Windows |
| 25 | 15 | 0.02 | 8 | 0.06 | Windows XP |
| 26 | 14 | 0.02 | 14 | 0.10 | Windows CE |
| 27 | 14 | 0.02 | 14 | 0.10 | Windows ME |
| 28 | 14 | 0.02 | 14 | 0.10 | MSIE 5.5; Windows NT 4.0 |
| 29 | 13 | 0.02 | 12 | 0.08 | Windows 3.1 |
| 30 | 13 | 0.02 | 1 | 0.01 | +https://www.dataprovider.com/ |
| 31 | 12 | 0.02 | 11 | 0.08 | ) - BrowseX (2.0.0 Windows |
| 32 | 9 | 0.01 | 0 | 0.00 | +http://sur.ly/bot.html |
| 33 | 8 | 0.01 | 7 | 0.05 | +info@netcraft.com |
| 34 | 6 | 0.01 | 6 | 0.04 | actually this is http://ismyblogworking.... |
| 35 | 4 | 0.01 | 4 | 0.03 | +http://www.uptime.com/uptimebot |
| 36 | 4 | 0.01 | 1 | 0.01 | Windows 76 |
| 37 | 2 | 0.00 | 0 | 0.00 | +http://glutenfreepleasure.com/ |
| 38 | 2 | 0.00 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 39 | 2 | 0.00 | 1 | 0.01 | +spider@seoscanners.net |
| 40 | 2 | 0.00 | 1 | 0.01 | +http://domainsigma.com/robot |
| 41 | 1 | 0.00 | 0 | 0.00 | Windows 46 |
| 42 | 1 | 0.00 | 0 | 0.00 | Windows A5 |
| 43 | 1 | 0.00 | 0 | 0.00 | Windows C7 |
| 44 | 1 | 0.00 | 0 | 0.00 | +http://www.domainoptima.com/robot |
| 45 | 1 | 0.00 | 1 | 0.01 | Windows 6F |
