| Used Operating Systems |
| 1 | 27273 | 26.36 | 22763 | 76.68 | +http://ahrefs.com/robot/ |
| 2 | 26086 | 25.21 | 234 | 0.79 | http://mj12bot.com/ |
| 3 | 15371 | 14.86 | 1068 | 3.60 | Windows NT |
| 4 | 11122 | 10.75 | 792 | 2.67 | http://www.opensiteexplorer.org/dotbot, ... |
| 5 | 9876 | 9.55 | 1 | 0.00 | +http://megaindex.com/crawler |
| 6 | 3659 | 3.54 | 1347 | 4.54 | +http://www.google.com/bot.html |
| 7 | 2813 | 2.72 | 2414 | 8.13 | +http://www.baidu.com/search/spider.html |
| 8 | 2755 | 2.66 | 3 | 0.01 | +http://OpenLinkProfiler.org/bot |
| 9 | 1694 | 1.64 | 161 | 0.54 | +http://yandex.com/bots |
| 10 | 1214 | 1.17 | 328 | 1.10 | +http://www.linkdex.com/bots/ |
| 11 | 615 | 0.59 | 212 | 0.71 | http://help.yahoo.com/help/us/ysearch/sl... |
| 12 | 207 | 0.20 | 127 | 0.43 | +http://www.bing.com/bingbot.htm |
| 13 | 174 | 0.17 | 8 | 0.03 | +http://www.semrush.com/bot.html |
| 14 | 152 | 0.15 | 54 | 0.18 | +http://www.findxbot.com |
| 15 | 62 | 0.06 | 15 | 0.05 | +http://napoveda.seznam.cz/en/seznambot-... |
| 16 | 59 | 0.06 | 19 | 0.06 | Windows XP |
| 17 | 54 | 0.05 | 10 | 0.03 | +http://siteexplorer.info/Backlink-Check... |
| 18 | 47 | 0.05 | 30 | 0.10 | Windows 95 |
| 19 | 33 | 0.03 | 13 | 0.04 | Windows 98 |
| 20 | 21 | 0.02 | 12 | 0.04 | +http://www.uptime.com/uptimebot |
| 21 | 21 | 0.02 | 3 | 0.01 | http://filterdb.iss.net/crawler/ |
| 22 | 18 | 0.02 | 2 | 0.01 | +http://www.seokicks.de/robot.html |
| 23 | 16 | 0.02 | 7 | 0.02 | +http://www.exabot.com/go/robot |
| 24 | 14 | 0.01 | 8 | 0.03 | Windows CE |
| 25 | 14 | 0.01 | 6 | 0.02 | Windows ME |
| 26 | 14 | 0.01 | 6 | 0.02 | Windows 3.1 |
| 27 | 10 | 0.01 | 5 | 0.02 | Windows 2000 |
| 28 | 10 | 0.01 | 4 | 0.01 | MSIE 5.5; Windows NT 4.0 |
| 29 | 9 | 0.01 | 5 | 0.02 | Auto; Windows |
| 30 | 8 | 0.01 | 4 | 0.01 | ) - BrowseX (2.0.0 Windows |
| 31 | 7 | 0.01 | 5 | 0.02 | +http://sur.ly/bot.html |
| 32 | 7 | 0.01 | 1 | 0.00 | http://www.botje.com/plukkie.htm |
| 33 | 6 | 0.01 | 6 | 0.02 | MSIE 5.5; Windows NT 5.0 |
| 34 | 4 | 0.00 | 2 | 0.01 | Mail.RU_Bot/Robots/2.0; +http://go.mail.... |
| 35 | 4 | 0.00 | 1 | 0.00 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 36 | 4 | 0.00 | 3 | 0.01 | Linux i686 [unknown version] |
| 37 | 3 | 0.00 | 2 | 0.01 | +info@netcraft.com |
| 38 | 2 | 0.00 | 1 | 0.00 | http://www.majestic12.co.uk/bot.php?+ |
| 39 | 1 | 0.00 | 1 | 0.00 | +http://glutenfreepleasure.com/ |
| 40 | 1 | 0.00 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 41 | 1 | 0.00 | 1 | 0.00 | Macintosh |
| 42 | 1 | 0.00 | 1 | 0.00 | Linux 2.2.x |
| 43 | 1 | 0.00 | 1 | 0.00 | PPC Mac OS X Mach-O |
