| Used Operating Systems |
| 1 | 31413 | 53.95 | 417 | 6.24 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 15263 | 26.22 | 1014 | 15.17 | Windows NT |
| 3 | 6541 | 11.23 | 4298 | 64.31 | +http://ahrefs.com/robot/ |
| 4 | 2006 | 3.45 | 2 | 0.03 | http://crawler.007ac9.net/ |
| 5 | 837 | 1.44 | 238 | 3.56 | +http://www.google.com/bot.html |
| 6 | 774 | 1.33 | 222 | 3.32 | +http://www.bing.com/bingbot.htm |
| 7 | 247 | 0.42 | 73 | 1.09 | http://www.opensiteexplorer.org/dotbot, ... |
| 8 | 201 | 0.35 | 70 | 1.05 | +http://yandex.com/bots |
| 9 | 182 | 0.31 | 58 | 0.87 | http://help.yahoo.com/help/us/ysearch/sl... |
| 10 | 165 | 0.28 | 88 | 1.32 | Windows 95 |
| 11 | 146 | 0.25 | 42 | 0.63 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 12 | 87 | 0.15 | 16 | 0.24 | Windows 98 |
| 13 | 54 | 0.09 | 13 | 0.19 | Windows XP |
| 14 | 48 | 0.08 | 2 | 0.03 | +https://www.dataprovider.com/ |
| 15 | 46 | 0.08 | 16 | 0.24 | MSIE 5.5; Windows NT 5.0 |
| 16 | 40 | 0.07 | 20 | 0.30 | Windows ME |
| 17 | 36 | 0.06 | 15 | 0.22 | +http://www.linkdex.com/bots/ |
| 18 | 22 | 0.04 | 2 | 0.03 | crawler@mixrank.com |
| 19 | 18 | 0.03 | 16 | 0.24 | Auto; Windows |
| 20 | 18 | 0.03 | 15 | 0.22 | MSIE 5.5; Windows NT 4.0 |
| 21 | 14 | 0.02 | 11 | 0.16 | Windows 3.1 |
| 22 | 14 | 0.02 | 5 | 0.07 | +http://www.exabot.com/go/robot |
| 23 | 12 | 0.02 | 11 | 0.16 | ) - BrowseX (2.0.0 Windows |
| 24 | 9 | 0.02 | 0 | 0.00 | Linux i686 [unknown version] |
| 25 | 8 | 0.01 | 8 | 0.12 | Windows CE |
| 26 | 6 | 0.01 | 6 | 0.09 | Windows 2000 |
| 27 | 5 | 0.01 | 1 | 0.01 | +http://www.semrush.com/bot.html |
| 28 | 4 | 0.01 | 2 | 0.03 | http://www.botje.com/plukkie.htm |
| 29 | 4 | 0.01 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 30 | 2 | 0.00 | 2 | 0.03 | X11 |
