| Used Operating Systems |
| 1 | 30022 | 53.74 | 315 | 2.71 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 8330 | 14.91 | 5077 | 43.66 | +http://www.baidu.com/search/spider.html |
| 3 | 8127 | 14.55 | 3963 | 34.08 | +http://ahrefs.com/robot/ |
| 4 | 5439 | 9.74 | 720 | 6.19 | Windows NT |
| 5 | 1094 | 1.96 | 389 | 3.35 | +http://www.bing.com/bingbot.htm |
| 6 | 560 | 1.00 | 300 | 2.58 | +http://www.linkdex.com/bots/ |
| 7 | 432 | 0.77 | 213 | 1.83 | +http://www.google.com/bot.html |
| 8 | 369 | 0.66 | 318 | 2.73 | +http://www.xovibot.net/ |
| 9 | 316 | 0.57 | 71 | 0.61 | +http://yandex.com/bots |
| 10 | 157 | 0.28 | 35 | 0.30 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 11 | 151 | 0.27 | 22 | 0.19 | Windows 95 |
| 12 | 144 | 0.26 | 5 | 0.04 | Windows 2000 |
| 13 | 91 | 0.16 | 7 | 0.06 | Windows XP |
| 14 | 90 | 0.16 | 15 | 0.13 | +http://www.semrush.com/bot.html |
| 15 | 87 | 0.16 | 30 | 0.26 | http://help.yahoo.com/help/us/ysearch/sl... |
| 16 | 58 | 0.10 | 9 | 0.08 | Windows CE |
| 17 | 50 | 0.09 | 5 | 0.04 | +http://OpenLinkProfiler.org/bot |
| 18 | 48 | 0.09 | 2 | 0.02 | +http://webmeup-crawler.com/ |
| 19 | 41 | 0.07 | 7 | 0.06 | Windows ME |
| 20 | 33 | 0.06 | 3 | 0.03 | Windows 98 |
| 21 | 28 | 0.05 | 14 | 0.12 | +http://help.coccoc.com/ |
| 22 | 25 | 0.04 | 10 | 0.09 | +http://www.exabot.com/go/robot |
| 23 | 22 | 0.04 | 22 | 0.19 | apps-spreadsheets; +http://docs.google.c... |
| 24 | 22 | 0.04 | 17 | 0.15 | +http://www.uptime.com/uptimebot |
| 25 | 22 | 0.04 | 4 | 0.03 | +http://www.findxbot.com |
| 26 | 13 | 0.02 | 13 | 0.11 | +http://glutenfreepleasure.com/ |
| 27 | 11 | 0.02 | 4 | 0.03 | MSIE 5.5; Windows NT 4.0 |
| 28 | 10 | 0.02 | 1 | 0.01 | +https://www.aihitdata.com/about |
| 29 | 9 | 0.02 | 1 | 0.01 | MSIE 5.5; Windows NT 5.0 |
| 30 | 8 | 0.01 | 5 | 0.04 | Windows 3.1 |
| 31 | 8 | 0.01 | 6 | 0.05 | Linux i686 [unknown version] |
| 32 | 8 | 0.01 | 1 | 0.01 | Intel Mac OS X 10.6 |
| 33 | 8 | 0.01 | 4 | 0.03 | +http://duckduckgo.com |
| 34 | 8 | 0.01 | 2 | 0.02 | +http://fulltext.sblog.cz/ |
| 35 | 5 | 0.01 | 5 | 0.04 | +http://pmoz.info/doc/botinfo.htm |
| 36 | 4 | 0.01 | 2 | 0.02 | OSF1 V4.0 alpha |
| 37 | 4 | 0.01 | 2 | 0.02 | ANTFresco/2.17; RISC OS-NC 5.13 Laz1UK13... |
| 38 | 3 | 0.01 | 2 | 0.02 | http://nmap.org/book/nse.html |
| 39 | 3 | 0.01 | 2 | 0.02 | +info@netcraft.com |
| 40 | 2 | 0.00 | 2 | 0.02 | Macintosh PPC |
| 41 | 2 | 0.00 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 42 | 2 | 0.00 | 1 | 0.01 | +http://www.meanpath.com/meanpathbot.htm... |
| 43 | 2 | 0.00 | 2 | 0.02 | +http://www.grapeshot.co.uk/crawler.php |
