| Used Operating Systems |
| 1 | 6967 | 35.23 | 169 | 7.13 | +http://ahrefs.com/robot/ |
| 2 | 3679 | 18.60 | 20 | 0.84 | http://www.majestic12.co.uk/bot.php?+ |
| 3 | 2927 | 14.80 | 724 | 30.54 | Windows NT |
| 4 | 1424 | 7.20 | 1125 | 47.45 | +http://www.baidu.com/search/spider.html |
| 5 | 1292 | 6.53 | 17 | 0.72 | http://crawler.sistrix.net/ |
| 6 | 960 | 4.85 | 0 | 0.00 | PPC Mac OS X Mach-O |
| 7 | 500 | 2.53 | 2 | 0.08 | +http://www.warebay.com/bot.html |
| 8 | 479 | 2.42 | 121 | 5.10 | +http://www.google.com/bot.html |
| 9 | 319 | 1.61 | 0 | 0.00 | Windows 98 |
| 10 | 248 | 1.25 | 48 | 2.02 | ezooms.bot@gmail.com |
| 11 | 190 | 0.96 | 24 | 1.01 | +http://yandex.com/bots |
| 12 | 188 | 0.95 | 44 | 1.86 | MirrorDetector; +http://yandex.com/bots |
| 13 | 110 | 0.56 | 32 | 1.35 | +http://www.bing.com/bingbot.htm |
| 14 | 86 | 0.43 | 0 | 0.00 | +http://www.compspy.com/spider.html |
| 15 | 74 | 0.37 | 0 | 0.00 | Solaris 2.4.x |
| 16 | 66 | 0.33 | 0 | 0.00 | Macintosh |
| 17 | 44 | 0.22 | 0 | 0.00 | Linux i686 [unknown version] |
| 18 | 36 | 0.18 | 0 | 0.00 | http://help.yahoo.com/help/us/ysearch/sl... |
| 19 | 36 | 0.18 | 36 | 1.52 | http://www.yodao.com/help/webmaster/spid... |
| 20 | 32 | 0.16 | 4 | 0.17 | +http://go.mail.ru/help/robots |
| 21 | 30 | 0.15 | 0 | 0.00 | America Online Browser 1.1; rev1.2; Wind... |
| 22 | 30 | 0.15 | 0 | 0.00 | OS/2 |
| 23 | 28 | 0.14 | 2 | 0.08 | +http://filterdb.iss.net/crawler/ |
| 24 | 10 | 0.05 | 3 | 0.13 | X11 |
| 25 | 8 | 0.04 | 0 | 0.00 | Android 2.3.5 |
| 26 | 6 | 0.03 | 0 | 0.00 | FreeBSD [unknown version] |
| 27 | 4 | 0.02 | 0 | 0.00 | WinHttp.WinHttpRequest.5 |
| 28 | 2 | 0.01 | 0 | 0.00 | +http://4seohunt.biz/about.html |
