| Used Operating Systems |
| 1 | 6701 | 51.16 | 114 | 3.14 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 3271 | 24.98 | 2223 | 61.29 | +http://www.baidu.com/search/spider.html |
| 3 | 827 | 6.31 | 357 | 9.84 | +http://www.bing.com/bingbot.htm |
| 4 | 749 | 5.72 | 364 | 10.04 | +http://www.google.com/bot.html |
| 5 | 720 | 5.50 | 258 | 7.11 | Windows NT |
| 6 | 169 | 1.29 | 39 | 1.08 | +http://www.linkdex.com/bots/ |
| 7 | 110 | 0.84 | 49 | 1.35 | http://www.opensiteexplorer.org/dotbot, ... |
| 8 | 82 | 0.63 | 39 | 1.08 | +http://www.exabot.com/go/robot |
| 9 | 73 | 0.56 | 30 | 0.83 | +http://yandex.com/bots |
| 10 | 70 | 0.53 | 11 | 0.30 | +http://fulltext.sblog.cz/ |
| 11 | 63 | 0.48 | 33 | 0.91 | http://help.yahoo.com/help/us/ysearch/sl... |
| 12 | 34 | 0.26 | 16 | 0.44 | +http://help.coccoc.com/ |
| 13 | 28 | 0.21 | 13 | 0.36 | +http://www.semrush.com/bot.html |
| 14 | 27 | 0.21 | 19 | 0.52 | +http://ahrefs.com/robot/ |
| 15 | 25 | 0.19 | 1 | 0.03 | Android |
| 16 | 21 | 0.16 | 11 | 0.30 | Linux [unknown version] |
| 17 | 20 | 0.15 | 2 | 0.06 | +http://megaindex.com/crawler |
| 18 | 18 | 0.14 | 6 | 0.17 | +http://OpenLinkProfiler.org/bot |
| 19 | 18 | 0.14 | 9 | 0.25 | +http://duckduckgo.com |
| 20 | 14 | 0.11 | 7 | 0.19 | +http://www.meanpath.com/meanpathbot.htm... |
| 21 | 10 | 0.08 | 3 | 0.08 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 22 | 10 | 0.08 | 1 | 0.03 | +https://www.lipperhey.com/en/about/ |
| 23 | 7 | 0.05 | 7 | 0.19 | +http://www.domaintuno.com/robot |
| 24 | 5 | 0.04 | 1 | 0.03 | +http://webmeup-crawler.com/ |
| 25 | 4 | 0.03 | 2 | 0.06 | +info@netcraft.com |
| 26 | 4 | 0.03 | 2 | 0.06 | +http://shoulu.jike.com/spider.html |
| 27 | 3 | 0.02 | 3 | 0.08 | +http://pmoz.info/doc/botinfo.htm |
| 28 | 3 | 0.02 | 1 | 0.03 | +http://prlog.ru/ |
| 29 | 2 | 0.02 | 2 | 0.06 | not on Windows server; |
| 30 | 2 | 0.02 | 2 | 0.06 | +http://glutenfreepleasure.com/ |
| 31 | 2 | 0.02 | 0 | 0.00 | Windows 98 |
| 32 | 2 | 0.02 | 0 | 0.00 | +http://siteexplorer.info/ |
| 33 | 2 | 0.02 | 2 | 0.06 | +http://www.grapeshot.co.uk/crawler.php |
| 34 | 1 | 0.01 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
