| Used Operating Systems |
| 1 | 2718 | 26.52 | 1186 | 25.55 | Windows NT |
| 2 | 2547 | 24.85 | 2253 | 48.54 | +http://www.baidu.com/search/spider.html |
| 3 | 1024 | 9.99 | 234 | 5.04 | +http://www.bing.com/bingbot.htm |
| 4 | 721 | 7.03 | 184 | 3.96 | http://www.opensiteexplorer.org/dotbot, ... |
| 5 | 550 | 5.37 | 84 | 1.81 | +http://yandex.com/bots |
| 6 | 538 | 5.25 | 4 | 0.09 | http://crawler.007ac9.net/ |
| 7 | 358 | 3.49 | 120 | 2.59 | +http://www.google.com/bot.html |
| 8 | 300 | 2.93 | 184 | 3.96 | +http://ahrefs.com/robot/ |
| 9 | 228 | 2.22 | 55 | 1.18 | http://www.majestic12.co.uk/bot.php?+ |
| 10 | 197 | 1.92 | 43 | 0.93 | http://help.yahoo.com/help/us/ysearch/sl... |
| 11 | 188 | 1.83 | 87 | 1.87 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 12 | 178 | 1.74 | 3 | 0.06 | +http://OpenLinkProfiler.org/bot |
| 13 | 154 | 1.50 | 8 | 0.17 | http://www.searchmetrics.com/en/searchme... |
| 14 | 101 | 0.99 | 71 | 1.53 | +http://www.easou.com/search/spider.html |
| 15 | 90 | 0.88 | 27 | 0.58 | Windows 95 |
| 16 | 64 | 0.62 | 10 | 0.22 | +http://fulltext.sblog.cz/ |
| 17 | 39 | 0.38 | 12 | 0.26 | +http://www.exabot.com/go/robot |
| 18 | 32 | 0.31 | 16 | 0.34 | +http://www.career-x.de/bot.html |
| 19 | 26 | 0.25 | 7 | 0.15 | Windows 98 |
| 20 | 21 | 0.20 | 5 | 0.11 | Windows 2000 |
| 21 | 21 | 0.20 | 5 | 0.11 | Windows XP |
| 22 | 16 | 0.16 | 2 | 0.04 | +http://siteexplorer.info/ |
| 23 | 15 | 0.15 | 5 | 0.11 | Windows ME |
| 24 | 12 | 0.12 | 2 | 0.04 | Windows CE |
| 25 | 12 | 0.12 | 4 | 0.09 | Windows 3.1 |
| 26 | 12 | 0.12 | 4 | 0.09 | ) - BrowseX (2.0.0 Windows |
| 27 | 12 | 0.12 | 0 | 0.00 | WinHttp.WinHttpRequest.5 |
| 28 | 9 | 0.09 | 3 | 0.06 | Auto; Windows |
| 29 | 9 | 0.09 | 6 | 0.13 | +http://wmaid.com/explore/ |
| 30 | 9 | 0.09 | 3 | 0.06 | +http://inload.in |
| 31 | 8 | 0.08 | 3 | 0.06 | Linux [unknown version] |
| 32 | 6 | 0.06 | 3 | 0.06 | http://crawler.sistrix.net/ |
| 33 | 6 | 0.06 | 2 | 0.04 | MSIE 5.5; Windows NT 4.0 |
| 34 | 5 | 0.05 | 3 | 0.06 | +info@netcraft.com |
| 35 | 4 | 0.04 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 36 | 4 | 0.04 | 0 | 0.00 | MSIE 5.5; Windows NT 5.1 |
| 37 | 4 | 0.04 | 2 | 0.04 | ScoutJet; +http://blekko.com/about/blekk... |
| 38 | 3 | 0.03 | 1 | 0.02 | +http://getdownload.ws |
| 39 | 3 | 0.03 | 1 | 0.02 | +http://freedlf.com/ |
| 40 | 2 | 0.02 | 0 | 0.00 | Win32 |
| 41 | 2 | 0.02 | 0 | 0.00 | Macintosh PPC |
| 42 | 2 | 0.02 | 0 | 0.00 | Linux 2.4.x |
