| Used Operating Systems |
| 1 | 16540 | 61.61 | 2191 | 34.10 | Windows NT |
| 2 | 2607 | 9.71 | 2347 | 36.52 | +http://www.baidu.com/search/spider.html |
| 3 | 1748 | 6.51 | 422 | 6.57 | +http://www.google.com/bot.html |
| 4 | 1107 | 4.12 | 667 | 10.38 | +http://www.bing.com/bingbot.htm |
| 5 | 1053 | 3.92 | 39 | 0.61 | http://www.majestic12.co.uk/bot.php?+ |
| 6 | 896 | 3.34 | 241 | 3.75 | ezooms.bot@gmail.com |
| 7 | 785 | 2.92 | 134 | 2.09 | http://www.yodao.com/help/webmaster/spid... |
| 8 | 478 | 1.78 | 2 | 0.03 | +http://www.warebay.com/bot.html |
| 9 | 268 | 1.00 | 62 | 0.96 | +http://yandex.com/bots |
| 10 | 235 | 0.88 | 41 | 0.64 | J2ME/MIDP |
| 11 | 221 | 0.82 | 58 | 0.90 | Windows 98 |
| 12 | 193 | 0.72 | 59 | 0.92 | Windows 95 |
| 13 | 146 | 0.54 | 1 | 0.02 | Macintosh |
| 14 | 51 | 0.19 | 28 | 0.44 | +http://discoveryengine.com/discobot.htm... |
| 15 | 47 | 0.18 | 6 | 0.09 | Linux i686 [unknown version] |
| 16 | 45 | 0.17 | 15 | 0.23 | Windows XP |
| 17 | 42 | 0.16 | 13 | 0.20 | MSIE 5.5; Windows NT 4.0 |
| 18 | 40 | 0.15 | 15 | 0.23 | Windows CE |
| 19 | 40 | 0.15 | 16 | 0.25 | http://crawler.sistrix.net/ |
| 20 | 38 | 0.14 | 3 | 0.05 | S60 |
| 21 | 32 | 0.12 | 4 | 0.06 | BlackBerry |
| 22 | 23 | 0.09 | 13 | 0.20 | +http://ahrefs.com/robot/ |
| 23 | 23 | 0.09 | 8 | 0.12 | Windows 3.1 |
| 24 | 21 | 0.08 | 6 | 0.09 | MSIE 5.5; Windows NT 5.0 |
| 25 | 20 | 0.07 | 4 | 0.06 | +http://www.exabot.com/go/robot |
| 26 | 18 | 0.07 | 2 | 0.03 | http://help.yahoo.com/help/us/ysearch/sl... |
| 27 | 14 | 0.05 | 5 | 0.08 | Windows 2000 |
| 28 | 14 | 0.05 | 2 | 0.03 | +http://www.aihit.com/ |
| 29 | 14 | 0.05 | 1 | 0.02 | WinHttp.WinHttpRequest.5 |
| 30 | 13 | 0.05 | 1 | 0.02 | Series 60 |
| 31 | 13 | 0.05 | 5 | 0.08 | Intel Mac OS X 10.6 |
| 32 | 12 | 0.04 | 0 | 0.00 | http://desktop.google.com/ |
| 33 | 12 | 0.04 | 4 | 0.06 | Windows ME |
| 34 | 10 | 0.04 | 3 | 0.05 | +http://shoulu.jike.com/spider.html |
| 35 | 9 | 0.03 | 2 | 0.03 | +info@netcraft.com |
| 36 | 8 | 0.03 | 1 | 0.02 | Intel Mac OS X 10.5 |
| 37 | 3 | 0.01 | 1 | 0.02 | FreeBSD [unknown version] |
| 38 | 2 | 0.01 | 2 | 0.03 | Macintosh PPC |
| 39 | 2 | 0.01 | 0 | 0.00 | Windows 6.1; MSIE 8.0.7600.16385 |
| 40 | 1 | 0.00 | 1 | 0.02 | Intel Mac OS X 10.4 |
| 41 | 1 | 0.00 | 0 | 0.00 | MTK |
| 42 | 1 | 0.00 | 0 | 0.00 | +http://fulltext.sblog.cz/screenshot/ |
| 43 | 1 | 0.00 | 1 | 0.02 | Solaris 8.x |
