| Used Operating Systems |
| 1 | 33348 | 44.81 | 541 | 4.84 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 21302 | 28.62 | 8462 | 75.64 | +http://ahrefs.com/robot/ |
| 3 | 12885 | 17.31 | 588 | 5.26 | Windows NT |
| 4 | 2806 | 3.77 | 238 | 2.13 | +http://yandex.com/bots |
| 5 | 1878 | 2.52 | 1087 | 9.72 | +http://www.baidu.com/search/spider.html |
| 6 | 810 | 1.09 | 6 | 0.05 | +http://OpenLinkProfiler.org/bot |
| 7 | 500 | 0.67 | 2 | 0.02 | Linux [unknown version] |
| 8 | 208 | 0.28 | 64 | 0.57 | +http://www.bing.com/bingbot.htm |
| 9 | 186 | 0.25 | 18 | 0.16 | +http://www.google.com/bot.html |
| 10 | 141 | 0.19 | 39 | 0.35 | Windows 95 |
| 11 | 111 | 0.15 | 28 | 0.25 | +http://www.linkdex.com/bots/ |
| 12 | 61 | 0.08 | 16 | 0.14 | http://help.yahoo.com/help/us/ysearch/sl... |
| 13 | 44 | 0.06 | 16 | 0.14 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 14 | 41 | 0.06 | 15 | 0.13 | Windows 98 |
| 15 | 29 | 0.04 | 11 | 0.10 | Windows 3.1 |
| 16 | 26 | 0.03 | 14 | 0.13 | +http://www.exabot.com/go/robot |
| 17 | 12 | 0.02 | 6 | 0.05 | Windows XP |
| 18 | 11 | 0.01 | 11 | 0.10 | Windows 2000 |
| 19 | 8 | 0.01 | 8 | 0.07 | ) - BrowseX (2.0.0 Windows |
| 20 | 5 | 0.01 | 5 | 0.04 | MSIE 5.5; Windows NT 5.0 |
| 21 | 4 | 0.01 | 4 | 0.04 | Windows CE |
| 22 | 4 | 0.01 | 4 | 0.04 | Auto; Windows |
| 23 | 4 | 0.01 | 0 | 0.00 | http://filterdb.iss.net/crawler/ |
| 24 | 2 | 0.00 | 2 | 0.02 | +info@netcraft.com |
| 25 | 2 | 0.00 | 1 | 0.01 | +http://siteexplorer.info/ |
| 26 | 1 | 0.00 | 1 | 0.01 | MSIE 5.5; Windows NT 4.0 |
