| Used Operating Systems |
| 1 | 4618 | 30.77 | 29 | 0.63 | Windows 98 |
| 2 | 4132 | 27.54 | 3280 | 70.92 | +http://www.baidu.com/search/spider.html |
| 3 | 2634 | 17.55 | 428 | 9.25 | Windows NT |
| 4 | 1068 | 7.12 | 220 | 4.76 | +http://yandex.com/bots |
| 5 | 831 | 5.54 | 206 | 4.45 | +http://www.bing.com/bingbot.htm |
| 6 | 457 | 3.05 | 110 | 2.38 | ezooms.bot@gmail.com |
| 7 | 365 | 2.43 | 198 | 4.28 | +http://ahrefs.com/robot/ |
| 8 | 351 | 2.34 | 78 | 1.69 | +http://www.google.com/bot.html |
| 9 | 301 | 2.01 | 14 | 0.30 | http://crawler.sistrix.net/ |
| 10 | 132 | 0.88 | 13 | 0.28 | http://www.majestic12.co.uk/bot.php?+ |
| 11 | 32 | 0.21 | 14 | 0.30 | Windows 95 |
| 12 | 30 | 0.20 | 15 | 0.32 | +http://www.exabot.com/go/robot |
| 13 | 14 | 0.09 | 2 | 0.04 | http://help.yahoo.com/help/us/ysearch/sl... |
| 14 | 12 | 0.08 | 6 | 0.13 | Auto; Windows |
| 15 | 6 | 0.04 | 2 | 0.04 | Linux i686 [unknown version] |
| 16 | 5 | 0.03 | 1 | 0.02 | +http://www.compspy.com/spider.html |
| 17 | 4 | 0.03 | 4 | 0.09 | MSIE 5.5; Windows NT 5.0 |
| 18 | 4 | 0.03 | 2 | 0.04 | +http://discoveryengine.com/discoverybot... |
| 19 | 4 | 0.03 | 2 | 0.04 | MSIE 5.5; Windows NT 4.0 |
| 20 | 3 | 0.02 | 0 | 0.00 | http://desktop.google.com/ |
| 21 | 3 | 0.02 | 1 | 0.02 | +info@netcraft.com |
