| Used Operating Systems |
| 1 | 4183 | 37.89 | 694 | 14.27 | Windows NT |
| 2 | 2499 | 22.63 | 2221 | 45.67 | +http://www.baidu.com/search/spider.html |
| 3 | 1323 | 11.98 | 388 | 7.98 | ezooms.bot@gmail.com |
| 4 | 1090 | 9.87 | 515 | 10.59 | +http://www.google.com/bot.html |
| 5 | 532 | 4.82 | 350 | 7.20 | +http://www.bing.com/bingbot.htm |
| 6 | 473 | 4.28 | 172 | 3.54 | +http://yandex.com/bots |
| 7 | 253 | 2.29 | 250 | 5.14 | http://www.yodao.com/help/webmaster/spid... |
| 8 | 104 | 0.94 | 4 | 0.08 | http://crawler.sistrix.net/ |
| 9 | 100 | 0.91 | 1 | 0.02 | http://www.lipperhey.com/ |
| 10 | 97 | 0.88 | 82 | 1.69 | +http://ahrefs.com/robot/ |
| 11 | 75 | 0.68 | 34 | 0.70 | Windows 98 |
| 12 | 69 | 0.62 | 5 | 0.10 | Linux i686 [unknown version] |
| 13 | 52 | 0.47 | 47 | 0.97 | Windows 95 |
| 14 | 45 | 0.41 | 1 | 0.02 | PPC Mac OS X 10.4 |
| 15 | 24 | 0.22 | 9 | 0.19 | http://www.majestic12.co.uk/bot.php?+ |
| 16 | 22 | 0.20 | 12 | 0.25 | +http://www.exabot.com/go/robot |
| 17 | 15 | 0.14 | 15 | 0.31 | Windows 3.1 |
| 18 | 13 | 0.12 | 12 | 0.25 | Windows 2000 |
| 19 | 12 | 0.11 | 11 | 0.23 | Windows ME |
| 20 | 9 | 0.08 | 2 | 0.04 | http://help.yahoo.com/help/us/ysearch/sl... |
| 21 | 8 | 0.07 | 7 | 0.14 | Windows XP |
| 22 | 7 | 0.06 | 7 | 0.14 | MSIE 5.5; Windows NT 4.0 |
| 23 | 6 | 0.05 | 6 | 0.12 | Windows CE |
| 24 | 6 | 0.05 | 4 | 0.08 | +http://discoveryengine.com/discobot.htm... |
| 25 | 6 | 0.05 | 3 | 0.06 | +http://www.acoon.de/robot.asp |
| 26 | 4 | 0.04 | 4 | 0.08 | MSIE 5.5; Windows NT 5.0 |
| 27 | 3 | 0.03 | 0 | 0.00 | http://desktop.google.com/ |
| 28 | 2 | 0.02 | 0 | 0.00 | J2ME/MIDP |
| 29 | 2 | 0.02 | 2 | 0.04 | Linux 2.4.x |
| 30 | 2 | 0.02 | 2 | 0.04 | Linux 2.0.x |
| 31 | 2 | 0.02 | 1 | 0.02 | +info@netcraft.com |
| 32 | 1 | 0.01 | 1 | 0.02 | +http://www.netseer.com/crawler.html; cr... |
| 33 | 1 | 0.01 | 0 | 0.00 | Linux [unknown version] |
| 34 | 1 | 0.01 | 1 | 0.02 | +http://www.webcorp.org.uk |
