| Used Operating Systems |
| 1 | 25842 | 64.46 | 485 | 8.03 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 4063 | 10.14 | 751 | 12.44 | Windows NT |
| 3 | 3935 | 9.82 | 2834 | 46.93 | +http://www.baidu.com/search/spider.html |
| 4 | 1480 | 3.69 | 513 | 8.49 | +http://www.bing.com/bingbot.htm |
| 5 | 1389 | 3.46 | 248 | 4.11 | +http://www.google.com/bot.html |
| 6 | 712 | 1.78 | 224 | 3.71 | http://www.opensiteexplorer.org/dotbot, ... |
| 7 | 467 | 1.16 | 114 | 1.89 | +http://www.linkdex.com/bots/ |
| 8 | 305 | 0.76 | 88 | 1.46 | +http://napoveda.seznam.cz/en/seznambot-... |
| 9 | 246 | 0.61 | 6 | 0.10 | +http://OpenLinkProfiler.org/bot |
| 10 | 222 | 0.55 | 184 | 3.05 | +http://www.xovibot.net/ |
| 11 | 201 | 0.50 | 63 | 1.04 | +http://yandex.com/bots |
| 12 | 179 | 0.45 | 124 | 2.05 | +http://ahrefs.com/robot/ |
| 13 | 175 | 0.44 | 75 | 1.24 | http://help.yahoo.com/help/us/ysearch/sl... |
| 14 | 98 | 0.24 | 6 | 0.10 | +http://www.seokicks.de/robot.html |
| 15 | 65 | 0.16 | 23 | 0.38 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 16 | 64 | 0.16 | 2 | 0.03 | +https://www.aihitdata.com/about |
| 17 | 63 | 0.16 | 8 | 0.13 | +http://corp.sputnik.ru/webmaster |
| 18 | 61 | 0.15 | 52 | 0.86 | Windows 95 |
| 19 | 55 | 0.14 | 6 | 0.10 | +http://fulltext.sblog.cz/ |
| 20 | 50 | 0.12 | 13 | 0.22 | Windows 98 |
| 21 | 48 | 0.12 | 2 | 0.03 | +http://megaindex.com/crawler |
| 22 | 42 | 0.10 | 39 | 0.65 | +http://www.uptime.com/uptimebot |
| 23 | 32 | 0.08 | 14 | 0.23 | +http://www.exabot.com/go/robot |
| 24 | 30 | 0.07 | 16 | 0.26 | +http://www.semrush.com/bot.html |
| 25 | 24 | 0.06 | 2 | 0.03 | +https://www.dataprovider.com/ |
| 26 | 23 | 0.06 | 21 | 0.35 | ) - BrowseX (2.0.0 Windows |
| 27 | 22 | 0.05 | 16 | 0.26 | Windows 3.1 |
| 28 | 21 | 0.05 | 3 | 0.05 | http://filterdb.iss.net/crawler/ |
| 29 | 19 | 0.05 | 17 | 0.28 | Auto; Windows |
| 30 | 17 | 0.04 | 5 | 0.08 | Windows XP |
| 31 | 17 | 0.04 | 4 | 0.07 | +http://siteexplorer.info/ |
| 32 | 15 | 0.04 | 14 | 0.23 | Windows 2000 |
| 33 | 12 | 0.03 | 3 | 0.05 | +http://webmeup-crawler.com/ |
| 34 | 11 | 0.03 | 1 | 0.02 | crawler@mixrank.com |
| 35 | 11 | 0.03 | 10 | 0.17 | Windows CE |
| 36 | 11 | 0.03 | 11 | 0.18 | MSIE 5.5; Windows NT 4.0 |
| 37 | 10 | 0.02 | 10 | 0.17 | MSIE 5.5; Windows NT 5.0 |
| 38 | 9 | 0.02 | 7 | 0.12 | Windows ME |
| 39 | 8 | 0.02 | 2 | 0.03 | +http://www.warebay.com/bot.html |
| 40 | 4 | 0.01 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 41 | 4 | 0.01 | 2 | 0.03 | +https://www.mojeek.com/bot.html |
| 42 | 4 | 0.01 | 4 | 0.07 | Linux [unknown version] |
| 43 | 4 | 0.01 | 2 | 0.03 | http://www.botje.com/plukkie.htm |
| 44 | 4 | 0.01 | 4 | 0.07 | X11 |
| 45 | 3 | 0.01 | 3 | 0.05 | Linux i686 [unknown version] |
| 46 | 2 | 0.00 | 2 | 0.03 | http://nmap.org/book/nse.html |
| 47 | 2 | 0.00 | 2 | 0.03 | Windows Phone OS 7.5 |
| 48 | 2 | 0.00 | 1 | 0.02 | +info@netcraft.com |
| 49 | 2 | 0.00 | 2 | 0.03 | +http://www.grapeshot.co.uk/crawler.php |
| 50 | 2 | 0.00 | 1 | 0.02 | +http://duckduckgo.com |
| 51 | 1 | 0.00 | 0 | 0.00 | +; |
