| Used Operating Systems |
| 1 | 3004 | 32.67 | 701 | 19.97 | Windows NT |
| 2 | 2135 | 23.22 | 1952 | 55.61 | +http://www.baidu.com/search/spider.html |
| 3 | 1530 | 16.64 | 269 | 7.66 | +http://www.bing.com/bingbot.htm |
| 4 | 593 | 6.45 | 285 | 8.12 | +http://www.google.com/bot.html |
| 5 | 571 | 6.21 | 38 | 1.08 | +http://yandex.com/bots |
| 6 | 392 | 4.26 | 61 | 1.74 | +http://www.semrush.com/bot.html |
| 7 | 259 | 2.82 | 89 | 2.54 | +http://ahrefs.com/robot/ |
| 8 | 144 | 1.57 | 6 | 0.17 | http://crawler.sistrix.net/ |
| 9 | 111 | 1.21 | 26 | 0.74 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 10 | 104 | 1.13 | 3 | 0.09 | +http://advbot.net/bot.html |
| 11 | 96 | 1.04 | 16 | 0.46 | http://www.majestic12.co.uk/bot.php?+ |
| 12 | 64 | 0.70 | 5 | 0.14 | WinHttp.WinHttpRequest.5 |
| 13 | 32 | 0.35 | 1 | 0.03 | +http://www.aihitdata.com/about |
| 14 | 30 | 0.33 | 9 | 0.26 | +http://www.exabot.com/go/robot |
| 15 | 24 | 0.26 | 1 | 0.03 | +http://www.easou.com/search/spider.html |
| 16 | 15 | 0.16 | 8 | 0.23 | http://www.opensiteexplorer.org/dotbot, ... |
| 17 | 12 | 0.13 | 4 | 0.11 | +http://www.meanpath.com/meanpathbot.htm... |
| 18 | 12 | 0.13 | 4 | 0.11 | +http://duckduckgo.com |
| 19 | 10 | 0.11 | 0 | 0.00 | Linux [unknown version] |
| 20 | 10 | 0.11 | 6 | 0.17 | +http://www.grapeshot.co.uk/crawler.php |
| 21 | 8 | 0.09 | 8 | 0.23 | +http://www.domaintuno.com/robot |
| 22 | 8 | 0.09 | 4 | 0.11 | Windows 98 |
| 23 | 6 | 0.07 | 3 | 0.09 | +http://gimme60.com |
| 24 | 6 | 0.07 | 1 | 0.03 | +http://www.profound.net/domainappender |
| 25 | 4 | 0.04 | 4 | 0.11 | Linux i686 [unknown version] |
| 26 | 4 | 0.04 | 2 | 0.06 | +info@netcraft.com |
| 27 | 4 | 0.04 | 1 | 0.03 | http://filterdb.iss.net/crawler/ |
| 28 | 4 | 0.04 | 1 | 0.03 | +http://get4dl.net |
| 29 | 2 | 0.02 | 2 | 0.06 | +; |
