| Used Operating Systems |
| 1 | 37892 | 52.80 | 423 | 3.27 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 12424 | 17.31 | 1209 | 9.35 | Windows NT |
| 3 | 8690 | 12.11 | 4448 | 34.40 | +http://ahrefs.com/robot/ |
| 4 | 8099 | 11.29 | 5057 | 39.11 | +http://www.baidu.com/search/spider.html |
| 5 | 921 | 1.28 | 352 | 2.72 | +http://www.bing.com/bingbot.htm |
| 6 | 874 | 1.22 | 195 | 1.51 | +http://yandex.com/bots |
| 7 | 579 | 0.81 | 320 | 2.47 | +http://www.linkdex.com/bots/ |
| 8 | 407 | 0.57 | 202 | 1.56 | +http://www.google.com/bot.html |
| 9 | 397 | 0.55 | 125 | 0.97 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 10 | 291 | 0.41 | 25 | 0.19 | Windows 98 |
| 11 | 198 | 0.28 | 170 | 1.31 | +http://www.xovibot.net/ |
| 12 | 152 | 0.21 | 4 | 0.03 | +http://webmeup-crawler.com/ |
| 13 | 133 | 0.19 | 88 | 0.68 | Windows 95 |
| 14 | 83 | 0.12 | 25 | 0.19 | +http://napoveda.seznam.cz/en/seznambot-... |
| 15 | 77 | 0.11 | 29 | 0.22 | http://help.yahoo.com/help/us/ysearch/sl... |
| 16 | 63 | 0.09 | 7 | 0.05 | +http://www.seokicks.de/robot.html |
| 17 | 54 | 0.08 | 52 | 0.40 | +http://www.uptime.com/uptimebot |
| 18 | 50 | 0.07 | 5 | 0.04 | +http://OpenLinkProfiler.org/bot |
| 19 | 50 | 0.07 | 16 | 0.12 | Windows XP |
| 20 | 34 | 0.05 | 10 | 0.08 | +http://www.semrush.com/bot.html |
| 21 | 27 | 0.04 | 15 | 0.12 | Windows ME |
| 22 | 27 | 0.04 | 16 | 0.12 | Windows 3.1 |
| 23 | 23 | 0.03 | 17 | 0.13 | MSIE 5.5; Windows NT 4.0 |
| 24 | 22 | 0.03 | 19 | 0.15 | Auto; Windows |
| 25 | 22 | 0.03 | 16 | 0.12 | MSIE 5.5; Windows NT 5.0 |
| 26 | 20 | 0.03 | 18 | 0.14 | Windows 2000 |
| 27 | 20 | 0.03 | 2 | 0.02 | +http://megaindex.com/crawler |
| 28 | 19 | 0.03 | 18 | 0.14 | ) - BrowseX (2.0.0 Windows |
| 29 | 18 | 0.03 | 4 | 0.03 | +http://help.coccoc.com/ |
| 30 | 15 | 0.02 | 12 | 0.09 | Windows CE |
| 31 | 14 | 0.02 | 5 | 0.04 | +http://duckduckgo.com |
| 32 | 10 | 0.01 | 2 | 0.02 | +http://siteexplorer.info/ |
| 33 | 8 | 0.01 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 34 | 8 | 0.01 | 2 | 0.02 | +http://help.coccoc.com/searchengine |
| 35 | 6 | 0.01 | 2 | 0.02 | +https://www.dataprovider.com/ |
| 36 | 5 | 0.01 | 3 | 0.02 | +https://gimmeusa.com/crawler.html |
| 37 | 4 | 0.01 | 2 | 0.02 | http://www.botje.com/plukkie.htm |
| 38 | 4 | 0.01 | 0 | 0.00 | WinHttp.WinHttpRequest.5 |
| 39 | 4 | 0.01 | 1 | 0.01 | +https://teeraid.com/bot/ |
| 40 | 4 | 0.01 | 2 | 0.02 | +http://www.exabot.com/go/robot |
| 41 | 4 | 0.01 | 2 | 0.02 | +http://fulltext.sblog.cz/ |
| 42 | 3 | 0.00 | 3 | 0.02 | +http://pmoz.info/doc/botinfo.htm |
| 43 | 2 | 0.00 | 2 | 0.02 | +http://glutenfreepleasure.com/ |
| 44 | 2 | 0.00 | 1 | 0.01 | +info@netcraft.com |
| 45 | 2 | 0.00 | 2 | 0.02 | https://help.yahoo.com/kb/mail/yahoo-lin... |
| 46 | 1 | 0.00 | 1 | 0.01 | http://nmap.org/book/nse.html |
| 47 | 1 | 0.00 | 1 | 0.01 | +http://www.grapeshot.co.uk/crawler.php |
| 48 | 1 | 0.00 | 1 | 0.01 | X11 |
