| Used Operating Systems |
| 1 | 45748 | 58.69 | 546 | 5.48 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 17395 | 22.31 | 7471 | 74.96 | +http://ahrefs.com/robot/ |
| 3 | 4802 | 6.16 | 14 | 0.14 | +http://www.warebay.com/bot.html |
| 4 | 3915 | 5.02 | 570 | 5.72 | Windows NT |
| 5 | 2006 | 2.57 | 2 | 0.02 | http://crawler.007ac9.net/ |
| 6 | 1498 | 1.92 | 916 | 9.19 | +http://www.baidu.com/search/spider.html |
| 7 | 810 | 1.04 | 6 | 0.06 | +http://OpenLinkProfiler.org/bot |
| 8 | 312 | 0.40 | 103 | 1.03 | +http://www.bing.com/bingbot.htm |
| 9 | 250 | 0.32 | 1 | 0.01 | Linux [unknown version] |
| 10 | 226 | 0.29 | 86 | 0.86 | +http://yandex.com/bots |
| 11 | 216 | 0.28 | 31 | 0.31 | http://help.yahoo.com/help/us/ysearch/sl... |
| 12 | 191 | 0.25 | 35 | 0.35 | +http://www.google.com/bot.html |
| 13 | 105 | 0.13 | 20 | 0.20 | Windows 95 |
| 14 | 92 | 0.12 | 23 | 0.23 | +http://www.linkdex.com/bots/ |
| 15 | 87 | 0.11 | 71 | 0.71 | +http://www.uptime.com/uptimebot |
| 16 | 55 | 0.07 | 16 | 0.16 | Windows XP |
| 17 | 54 | 0.07 | 4 | 0.04 | Windows 98 |
| 18 | 46 | 0.06 | 14 | 0.14 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 19 | 30 | 0.04 | 3 | 0.03 | +http://filterdb.iss.net/crawler/ |
| 20 | 30 | 0.04 | 14 | 0.14 | +http://www.exabot.com/go/robot |
| 21 | 24 | 0.03 | 4 | 0.04 | Windows 3.1 |
| 22 | 12 | 0.02 | 2 | 0.02 | MSIE 5.5; Windows NT 5.0 |
| 23 | 10 | 0.01 | 1 | 0.01 | Windows ME |
| 24 | 8 | 0.01 | 2 | 0.02 | Android |
| 25 | 8 | 0.01 | 0 | 0.00 | http://www.opensiteexplorer.org/dotbot, ... |
| 26 | 8 | 0.01 | 4 | 0.04 | MSIE 5.5; Windows NT 4.0 |
| 27 | 6 | 0.01 | 2 | 0.02 | +http://www.privacyaware.org |
| 28 | 4 | 0.01 | 2 | 0.02 | +http://siteexplorer.info/ |
| 29 | 2 | 0.00 | 2 | 0.02 | Windows 2000 |
| 30 | 2 | 0.00 | 0 | 0.00 | Android 2.3.5 |
| 31 | 2 | 0.00 | 2 | 0.02 | +info@netcraft.com |
