| Used Operating Systems |
| 1 | 31860 | 36.53 | 21523 | 76.35 | +http://ahrefs.com/robot/ |
| 2 | 26311 | 30.17 | 172 | 0.61 | http://mj12bot.com/ |
| 3 | 7532 | 8.64 | 43 | 0.15 | http://www.majestic12.co.uk/bot.php?+ |
| 4 | 5108 | 5.86 | 1292 | 4.58 | Windows NT |
| 5 | 3529 | 4.05 | 1507 | 5.35 | +http://www.google.com/bot.html |
| 6 | 3005 | 3.45 | 3 | 0.01 | +http://OpenLinkProfiler.org/bot |
| 7 | 2119 | 2.43 | 2041 | 7.24 | +http://www.baidu.com/search/spider.html |
| 8 | 1797 | 2.06 | 122 | 0.43 | +http://yandex.com/bots |
| 9 | 1647 | 1.89 | 264 | 0.94 | +http://www.bing.com/bingbot.htm |
| 10 | 1626 | 1.86 | 115 | 0.41 | http://help.yahoo.com/help/us/ysearch/sl... |
| 11 | 529 | 0.61 | 203 | 0.72 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 12 | 445 | 0.51 | 121 | 0.43 | +http://www.linkdex.com/bots/ |
| 13 | 266 | 0.30 | 228 | 0.81 | +http://www.xovibot.net/ |
| 14 | 260 | 0.30 | 2 | 0.01 | +http://www.warebay.com/bot.html |
| 15 | 250 | 0.29 | 1 | 0.00 | Linux [unknown version] |
| 16 | 239 | 0.27 | 192 | 0.68 | Windows 95 |
| 17 | 171 | 0.20 | 35 | 0.12 | Windows 98 |
| 18 | 136 | 0.16 | 16 | 0.06 | +http://www.exabot.com/go/robot |
| 19 | 44 | 0.05 | 40 | 0.14 | Windows 2000 |
| 20 | 43 | 0.05 | 38 | 0.13 | Windows ME |
| 21 | 43 | 0.05 | 36 | 0.13 | Windows 3.1 |
| 22 | 42 | 0.05 | 41 | 0.15 | Auto; Windows |
| 23 | 40 | 0.05 | 34 | 0.12 | Windows CE |
| 24 | 40 | 0.05 | 37 | 0.13 | MSIE 5.5; Windows NT 4.0 |
| 25 | 36 | 0.04 | 32 | 0.11 | ) - BrowseX (2.0.0 Windows |
| 26 | 34 | 0.04 | 30 | 0.11 | MSIE 5.5; Windows NT 5.0 |
| 27 | 33 | 0.04 | 3 | 0.01 | Windows XP |
| 28 | 16 | 0.02 | 8 | 0.03 | +http://help.coccoc.com/searchengine |
| 29 | 6 | 0.01 | 5 | 0.02 | +http://8pw.ru/virus |
| 30 | 4 | 0.00 | 0 | 0.00 | +http://napoveda.seznam.cz/en/seznambot-... |
| 31 | 2 | 0.00 | 1 | 0.00 | Macintosh PPC |
| 32 | 2 | 0.00 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 33 | 2 | 0.00 | 1 | 0.00 | +info@netcraft.com |
| 34 | 2 | 0.00 | 2 | 0.01 | Linux i686 [unknown version] |
| 35 | 2 | 0.00 | 1 | 0.00 | +http://duckduckgo.com |
| 36 | 1 | 0.00 | 1 | 0.00 | +http://8pw.ru/ |
| 37 | 1 | 0.00 | 1 | 0.00 | http://nmap.org/book/nse.html |
