| Used Operating Systems |
| 1 | 19968 | 40.84 | 233 | 2.84 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 6959 | 14.23 | 1548 | 18.89 | Windows NT |
| 3 | 4540 | 9.29 | 2415 | 29.48 | +http://ahrefs.com/robot/ |
| 4 | 3385 | 6.92 | 1 | 0.01 | +http://megaindex.com/crawler |
| 5 | 2179 | 4.46 | 1900 | 23.19 | +http://www.baidu.com/search/spider.html |
| 6 | 1948 | 3.98 | 6 | 0.07 | +http://www.warebay.com/bot.html |
| 7 | 1725 | 3.53 | 279 | 3.41 | +http://www.bing.com/bingbot.htm |
| 8 | 1241 | 2.54 | 2 | 0.02 | +http://OpenLinkProfiler.org/bot |
| 9 | 1059 | 2.17 | 517 | 6.31 | +http://www.google.com/bot.html |
| 10 | 1050 | 2.15 | 236 | 2.88 | +http://yandex.com/bots |
| 11 | 1006 | 2.06 | 2 | 0.02 | http://crawler.007ac9.net/ |
| 12 | 971 | 1.99 | 344 | 4.20 | http://www.opensiteexplorer.org/dotbot, ... |
| 13 | 947 | 1.94 | 6 | 0.07 | +http://webmeup-crawler.com/ |
| 14 | 411 | 0.84 | 182 | 2.22 | http://help.yahoo.com/help/us/ysearch/sl... |
| 15 | 357 | 0.73 | 136 | 1.66 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 16 | 352 | 0.72 | 78 | 0.95 | +http://www.linkdex.com/bots/ |
| 17 | 247 | 0.51 | 27 | 0.33 | +http://fulltext.sblog.cz/ |
| 18 | 107 | 0.22 | 98 | 1.20 | +http://www.xovibot.net/ |
| 19 | 57 | 0.12 | 48 | 0.59 | +http://www.uptime.com/uptimebot |
| 20 | 55 | 0.11 | 20 | 0.24 | Windows XP |
| 21 | 51 | 0.10 | 1 | 0.01 | +https://www.aihitdata.com/about |
| 22 | 41 | 0.08 | 22 | 0.27 | Windows 95 |
| 23 | 34 | 0.07 | 14 | 0.17 | Windows 98 |
| 24 | 30 | 0.06 | 11 | 0.13 | +http://www.exabot.com/go/robot |
| 25 | 24 | 0.05 | 12 | 0.15 | +http://duckduckgo.com |
| 26 | 18 | 0.04 | 2 | 0.02 | +https://www.lipperhey.com/en/about/ |
| 27 | 16 | 0.03 | 6 | 0.07 | MSIE 5.5; Windows NT 4.0 |
| 28 | 14 | 0.03 | 7 | 0.09 | Windows 2000 |
| 29 | 12 | 0.02 | 5 | 0.06 | Windows CE |
| 30 | 12 | 0.02 | 3 | 0.04 | Android 2.3.5 |
| 31 | 12 | 0.02 | 4 | 0.05 | X11 |
| 32 | 10 | 0.02 | 4 | 0.05 | Windows ME |
| 33 | 9 | 0.02 | 1 | 0.01 | +http://www.linkpad.ru |
| 34 | 7 | 0.01 | 3 | 0.04 | Windows 3.1 |
| 35 | 6 | 0.01 | 5 | 0.06 | ) - BrowseX (2.0.0 Windows |
| 36 | 4 | 0.01 | 2 | 0.02 | Auto; Windows |
| 37 | 4 | 0.01 | 3 | 0.04 | MSIE 5.5; Windows NT 5.0 |
| 38 | 4 | 0.01 | 1 | 0.01 | +https://teeraid.com/bot/ |
| 39 | 3 | 0.01 | 1 | 0.01 | +http://www.privacyaware.org |
| 40 | 2 | 0.00 | 1 | 0.01 | +http://sur.ly/bot.html |
| 41 | 2 | 0.00 | 1 | 0.01 | +https://www.mojeek.com/bot.html |
| 42 | 2 | 0.00 | 2 | 0.02 | Linux i686 [unknown version] |
| 43 | 2 | 0.00 | 1 | 0.01 | +info@netcraft.com |
| 44 | 2 | 0.00 | 0 | 0.00 | +http://www.semrush.com/bot.html |
| 45 | 1 | 0.00 | 1 | 0.01 | +https://gimmeusa.com/crawler.html |
| 46 | 1 | 0.00 | 1 | 0.01 | http://nmap.org/book/nse.html |
| 47 | 1 | 0.00 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 48 | 1 | 0.00 | 0 | 0.00 | Intel Mac OS X 10.6 |
| 49 | 1 | 0.00 | 0 | 0.00 | +http://siteexplorer.info/ |
| 50 | 1 | 0.00 | 1 | 0.01 | +http://www.grapeshot.co.uk/crawler.php |
