| Used Operating Systems |
| 1 | 18682 | 40.47 | 265 | 5.72 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 14541 | 31.50 | 3199 | 69.00 | Windows NT |
| 3 | 4629 | 10.03 | 115 | 2.48 | http://www.opensiteexplorer.org/dotbot, ... |
| 4 | 2672 | 5.79 | 5 | 0.11 | +http://webmeup-crawler.com/ |
| 5 | 1007 | 2.18 | 3 | 0.06 | +http://OpenLinkProfiler.org/bot |
| 6 | 1002 | 2.17 | 2 | 0.04 | http://crawler.sistrix.net/ |
| 7 | 1000 | 2.17 | 2 | 0.04 | +https://www.megaindex.ru/?tab=linkAnaly... |
| 8 | 693 | 1.50 | 500 | 10.79 | +http://www.baidu.com/search/spider.html |
| 9 | 489 | 1.06 | 120 | 2.59 | +http://www.linkdex.com/bots/ |
| 10 | 410 | 0.89 | 28 | 0.60 | +http://yandex.com/bots |
| 11 | 264 | 0.57 | 70 | 1.51 | MSIE 5.5; Windows NT 5.0 |
| 12 | 191 | 0.41 | 66 | 1.42 | +http://www.google.com/bot.html |
| 13 | 153 | 0.33 | 34 | 0.73 | +http://www.easou.com/search/spider.html |
| 14 | 120 | 0.26 | 42 | 0.91 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 15 | 71 | 0.15 | 36 | 0.78 | +http://www.bing.com/bingbot.htm |
| 16 | 54 | 0.12 | 42 | 0.91 | Linux i686 [unknown version] |
| 17 | 30 | 0.06 | 21 | 0.45 | J2ME/MIDP |
| 18 | 28 | 0.06 | 14 | 0.30 | Windows 95 |
| 19 | 28 | 0.06 | 27 | 0.58 | X11 |
| 20 | 25 | 0.05 | 22 | 0.47 | Linux [unknown version] |
| 21 | 15 | 0.03 | 9 | 0.19 | Windows 98 |
| 22 | 12 | 0.03 | 6 | 0.13 | Windows 2000 |
| 23 | 10 | 0.02 | 0 | 0.00 | +http://ahrefs.com/robot/ |
| 24 | 8 | 0.02 | 4 | 0.09 | MSIE 5.5; Windows NT 4.0 |
| 25 | 8 | 0.02 | 0 | 0.00 | WinHttp.WinHttpRequest.5 |
| 26 | 6 | 0.01 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 27 | 6 | 0.01 | 2 | 0.04 | +http://www.semrush.com/bot.html |
| 28 | 4 | 0.01 | 1 | 0.02 | PPC Mac OS X Mach-O |
| 29 | 2 | 0.00 | 1 | 0.02 | Windows 3.1 |
