| Used Operating Systems by Visits |
| 1 | 4831 | 4.48 | 1549 | 23.34 | +http://www.bing.com/bingbot.htm |
| 2 | 13031 | 12.10 | 1429 | 21.53 | Windows NT |
| 3 | 3245 | 3.01 | 1192 | 17.96 | +http://www.google.com/bot.html |
| 4 | 34144 | 31.70 | 714 | 10.76 | +http://ahrefs.com/robot/ |
| 5 | 40597 | 37.69 | 556 | 8.38 | http://www.majestic12.co.uk/bot.php?+ |
| 6 | 1120 | 1.04 | 394 | 5.94 | http://help.yahoo.com/help/us/ysearch/sl... |
| 7 | 970 | 0.90 | 146 | 2.20 | +http://yandex.com/bots |
| 8 | 236 | 0.22 | 101 | 1.52 | http://www.opensiteexplorer.org/dotbot, ... |
| 9 | 421 | 0.39 | 100 | 1.51 | +http://www.linkdex.com/bots/ |
| 10 | 182 | 0.17 | 68 | 1.02 | +http://duckduckgo.com |
| 11 | 118 | 0.11 | 50 | 0.75 | Windows 95 |
| 12 | 48 | 0.04 | 46 | 0.69 | +info@netcraft.com |
| 13 | 165 | 0.15 | 36 | 0.54 | Windows XP |
| 14 | 113 | 0.10 | 30 | 0.45 | Windows 98 |
| 15 | 40 | 0.04 | 24 | 0.36 | +http://www.exabot.com/go/robot |
| 16 | 196 | 0.18 | 22 | 0.33 | http://www.bing.com/bingbot.htm |
| 17 | 28 | 0.03 | 14 | 0.21 | +http://www.meanpath.com/meanpathbot.htm... |
| 18 | 311 | 0.29 | 13 | 0.20 | +http://www.xovibot.net/ |
| 19 | 26 | 0.02 | 11 | 0.17 | MSIE 5.5; Windows NT 5.0 |
| 20 | 15 | 0.01 | 10 | 0.15 | Windows CE |
| 21 | 24 | 0.02 | 10 | 0.15 | http://www.botje.com/plukkie.htm |
| 22 | 140 | 0.13 | 10 | 0.15 | +http://inbyapp.com |
| 23 | 22 | 0.02 | 10 | 0.15 | ) - BrowseX (2.0.0 Windows |
| 24 | 16 | 0.01 | 8 | 0.12 | Windows 3.1 |
| 25 | 54 | 0.05 | 8 | 0.12 | http://filterdb.iss.net/crawler/ |
| 26 | 862 | 0.80 | 7 | 0.11 | +http://OpenLinkProfiler.org/bot |
| 27 | 17 | 0.02 | 7 | 0.11 | Windows ME |
| 28 | 23 | 0.02 | 7 | 0.11 | MSIE 5.5; Windows NT 4.0 |
| 29 | 13 | 0.01 | 7 | 0.11 | +http://www.grapeshot.co.uk/crawler.php |
| 30 | 20 | 0.02 | 6 | 0.09 | Auto; Windows |
| 31 | 7 | 0.01 | 6 | 0.09 | apps-spreadsheets; +http://docs.google.c... |
| 32 | 80 | 0.07 | 6 | 0.09 | +https://www.aihitdata.com/about |
| 33 | 1040 | 0.97 | 5 | 0.08 | +http://www.warebay.com/bot.html |
| 34 | 172 | 0.16 | 5 | 0.08 | +http://fulltext.sblog.cz/ |
| 35 | 4 | 0.00 | 4 | 0.06 | http://nmap.org/book/nse.html |
| 36 | 21 | 0.02 | 4 | 0.06 | +https://www.lipperhey.com/en/about/ |
| 37 | 501 | 0.47 | 3 | 0.05 | Linux [unknown version] |
| 38 | 9 | 0.01 | 3 | 0.05 | +http://www.privacyaware.org |
| 39 | 4 | 0.00 | 3 | 0.05 | +http://www.semrush.com/bot.html |
| 40 | 6 | 0.01 | 2 | 0.03 | Windows 2000 |
| 41 | 4 | 0.00 | 2 | 0.03 | +https://www.mojeek.com/bot.html |
| 42 | 1879 | 1.74 | 2 | 0.03 | crawler@goodzer.com |
| 43 | 6 | 0.01 | 2 | 0.03 | Linux i686 [unknown version] |
| 44 | 70 | 0.06 | 2 | 0.03 | +http://www.findxbot.com |
| 45 | 2 | 0.00 | 1 | 0.02 | +http://crawler.seolytics.net/ |
| 46 | 3 | 0.00 | 1 | 0.02 | X11 |
| 47 | 1 | 0.00 | 0 | 0.00 | Android |
| 48 | 8 | 0.01 | 0 | 0.00 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 49 | 1 | 0.00 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 50 | 4 | 0.00 | 0 | 0.00 | Windows 92 |
| 51 | 4 | 0.00 | 0 | 0.00 | WinHttp.WinHttpRequest.5 |
| 52 | 2866 | 2.66 | 0 | 0.00 | +http://www.baidu.com/search/spider.html |
| 53 | 2 | 0.00 | 0 | 0.00 | Android 2.3.5 |
