| Used Operating Systems |
| 1 | 25714 | 42.89 | 264 | 1.76 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 13364 | 22.29 | 9216 | 61.34 | +http://ahrefs.com/robot/ |
| 3 | 7675 | 12.80 | 1143 | 7.61 | Windows NT |
| 4 | 2999 | 5.00 | 270 | 1.80 | +http://yandex.com/bots |
| 5 | 2816 | 4.70 | 2402 | 15.99 | +http://www.baidu.com/search/spider.html |
| 6 | 2542 | 4.24 | 3 | 0.02 | +http://OpenLinkProfiler.org/bot |
| 7 | 2237 | 3.73 | 864 | 5.75 | +http://www.google.com/bot.html |
| 8 | 688 | 1.15 | 268 | 1.78 | +http://www.bing.com/bingbot.htm |
| 9 | 550 | 0.92 | 167 | 1.11 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 10 | 339 | 0.57 | 89 | 0.59 | +http://www.linkdex.com/bots/ |
| 11 | 330 | 0.55 | 7 | 0.05 | +http://siteexplorer.info/ |
| 12 | 122 | 0.20 | 77 | 0.51 | Windows 95 |
| 13 | 96 | 0.16 | 31 | 0.21 | Windows XP |
| 14 | 90 | 0.15 | 0 | 0.00 | http://filterdb.iss.net/crawler/ |
| 15 | 75 | 0.13 | 28 | 0.19 | Windows 98 |
| 16 | 38 | 0.06 | 19 | 0.13 | +http://duckduckgo.com |
| 17 | 33 | 0.06 | 20 | 0.13 | ) - BrowseX (2.0.0 Windows |
| 18 | 26 | 0.04 | 18 | 0.12 | Windows 3.1 |
| 19 | 25 | 0.04 | 15 | 0.10 | Windows 2000 |
| 20 | 24 | 0.04 | 2 | 0.01 | +https://www.dataprovider.com/ |
| 21 | 22 | 0.04 | 16 | 0.11 | Windows CE |
| 22 | 22 | 0.04 | 6 | 0.04 | +spider@seoscanners.net |
| 23 | 21 | 0.04 | 21 | 0.14 | +http://www.xovibot.net/ |
| 24 | 20 | 0.03 | 16 | 0.11 | MSIE 5.5; Windows NT 5.0 |
| 25 | 19 | 0.03 | 10 | 0.07 | http://help.yahoo.com/help/us/ysearch/sl... |
| 26 | 17 | 0.03 | 14 | 0.09 | MSIE 5.5; Windows NT 4.0 |
| 27 | 15 | 0.03 | 13 | 0.09 | Auto; Windows |
| 28 | 15 | 0.03 | 8 | 0.05 | +http://www.exabot.com/go/robot |
| 29 | 11 | 0.02 | 8 | 0.05 | Windows ME |
| 30 | 6 | 0.01 | 4 | 0.03 | +info@netcraft.com |
| 31 | 2 | 0.00 | 2 | 0.01 | Linux [unknown version] |
| 32 | 2 | 0.00 | 2 | 0.01 | +https://rankval.com |
| 33 | 1 | 0.00 | 0 | 0.00 | http://desktop.google.com/ |
| 34 | 1 | 0.00 | 1 | 0.01 | http://nmap.org/book/nse.html |
| 35 | 1 | 0.00 | 1 | 0.01 | Linux 2.6.x |
