| Used Operating Systems |
| 1 | 21711 | 43.60 | 1576 | 45.40 | Windows NT |
| 2 | 7885 | 15.84 | 167 | 4.81 | http://www.majestic12.co.uk/bot.php?+ |
| 3 | 7418 | 14.90 | 421 | 12.13 | +crawl@publiclibraryarchive.org |
| 4 | 4012 | 8.06 | 4 | 0.12 | http://crawler.007ac9.net/ |
| 5 | 3956 | 7.94 | 305 | 8.79 | +http://ahrefs.com/robot/ |
| 6 | 2022 | 4.06 | 130 | 3.75 | +http://yandex.com/bots |
| 7 | 560 | 1.12 | 251 | 7.23 | +http://www.google.com/bot.html |
| 8 | 502 | 1.01 | 1 | 0.03 | +http://OpenLinkProfiler.org/bot |
| 9 | 333 | 0.67 | 282 | 8.12 | +http://www.baidu.com/search/spider.html |
| 10 | 222 | 0.45 | 71 | 2.05 | +http://www.exabot.com/go/robot |
| 11 | 212 | 0.43 | 17 | 0.49 | Windows 98 |
| 12 | 205 | 0.41 | 69 | 1.99 | +http://www.linkdex.com/bots/ |
| 13 | 131 | 0.26 | 10 | 0.29 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 14 | 87 | 0.17 | 38 | 1.09 | +http://www.bing.com/bingbot.htm |
| 15 | 79 | 0.16 | 23 | 0.66 | Windows 95 |
| 16 | 70 | 0.14 | 30 | 0.86 | http://www.opensiteexplorer.org/dotbot, ... |
| 17 | 64 | 0.13 | 31 | 0.89 | +http://www.meanpath.com/meanpathbot.htm... |
| 18 | 54 | 0.11 | 0 | 0.00 | Solaris 2.4.x |
| 19 | 28 | 0.06 | 0 | 0.00 | PPC Mac OS X Mach-O |
| 20 | 28 | 0.06 | 0 | 0.00 | Macintosh |
| 21 | 24 | 0.05 | 0 | 0.00 | Solaris 9.x |
| 22 | 24 | 0.05 | 0 | 0.00 | MSN 2.5; Windows 98 |
| 23 | 23 | 0.05 | 0 | 0.00 | +http://indonesiancoder.com |
| 24 | 18 | 0.04 | 7 | 0.20 | Windows CE |
| 25 | 18 | 0.04 | 4 | 0.12 | +http://siteexplorer.info/ |
| 26 | 11 | 0.02 | 2 | 0.06 | X11 |
| 27 | 10 | 0.02 | 1 | 0.03 | http://help.yahoo.com/help/us/ysearch/sl... |
| 28 | 8 | 0.02 | 4 | 0.12 | http://crawler.sistrix.net/ |
| 29 | 8 | 0.02 | 4 | 0.12 | Android 2.3.5 |
| 30 | 8 | 0.02 | 0 | 0.00 | America Online Browser 1.1; rev1.1; Wi... |
| 31 | 7 | 0.01 | 5 | 0.14 | Windows 2000 |
| 32 | 7 | 0.01 | 5 | 0.14 | MSIE 5.5; Windows NT 4.0 |
| 33 | 6 | 0.01 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 34 | 6 | 0.01 | 0 | 0.00 | http://filterdb.iss.net/crawler/ |
| 35 | 6 | 0.01 | 0 | 0.00 | America Online Browser 1.1; rev1.5; Wind... |
| 36 | 4 | 0.01 | 0 | 0.00 | Macintosh PPC |
| 37 | 4 | 0.01 | 3 | 0.09 | Windows ME |
| 38 | 4 | 0.01 | 1 | 0.03 | Windows XP |
| 39 | 4 | 0.01 | 0 | 0.00 | Linux i686 [unknown version] |
| 40 | 4 | 0.01 | 2 | 0.06 | Intel Mac OS X 10.6 |
| 41 | 3 | 0.01 | 1 | 0.03 | MSIE 5.5; Windows NT 5.0 |
| 42 | 2 | 0.00 | 2 | 0.06 | Auto; Windows |
| 43 | 2 | 0.00 | 2 | 0.06 | Linux [unknown version] |
| 44 | 2 | 0.00 | 1 | 0.03 | Windows 3.1 |
| 45 | 1 | 0.00 | 1 | 0.03 | +info@netcraft.com |
