| Used Operating Systems |
| 1 | 18977 | 29.82 | 160 | 0.95 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 14133 | 22.21 | 12434 | 73.94 | +http://ahrefs.com/robot/ |
| 3 | 11458 | 18.01 | 532 | 3.16 | +http://yandex.com/bots |
| 4 | 8166 | 12.83 | 347 | 2.06 | Windows NT |
| 5 | 3403 | 5.35 | 1 | 0.01 | +http://megaindex.com/crawler |
| 6 | 2080 | 3.27 | 1920 | 11.42 | +http://www.baidu.com/search/spider.html |
| 7 | 2002 | 3.15 | 2 | 0.01 | +http://OpenLinkProfiler.org/bot |
| 8 | 1612 | 2.53 | 718 | 4.27 | +http://www.google.com/bot.html |
| 9 | 605 | 0.95 | 335 | 1.99 | +http://www.xovibot.net/ |
| 10 | 578 | 0.91 | 215 | 1.28 | +http://www.bing.com/bingbot.htm |
| 11 | 257 | 0.40 | 50 | 0.30 | +http://www.linkdex.com/bots/ |
| 12 | 128 | 0.20 | 4 | 0.02 | +http://siteexplorer.info/ |
| 13 | 38 | 0.06 | 0 | 0.00 | http://filterdb.iss.net/crawler/ |
| 14 | 35 | 0.06 | 2 | 0.01 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 15 | 23 | 0.04 | 11 | 0.07 | +http://www.uptime.com/uptimebot |
| 16 | 22 | 0.03 | 10 | 0.06 | Windows 98 |
| 17 | 21 | 0.03 | 20 | 0.12 | Windows 95 |
| 18 | 16 | 0.03 | 8 | 0.05 | +http://duckduckgo.com |
| 19 | 15 | 0.02 | 7 | 0.04 | http://help.yahoo.com/help/us/ysearch/sl... |
| 20 | 12 | 0.02 | 1 | 0.01 | +https://www.dataprovider.com/ |
| 21 | 9 | 0.01 | 5 | 0.03 | +http://www.exabot.com/go/robot |
| 22 | 6 | 0.01 | 0 | 0.00 | +spider@seoscanners.net |
| 23 | 5 | 0.01 | 3 | 0.02 | Windows 2000 |
| 24 | 5 | 0.01 | 3 | 0.02 | Windows XP |
| 25 | 5 | 0.01 | 4 | 0.02 | Windows 3.1 |
| 26 | 4 | 0.01 | 4 | 0.02 | MSIE 5.5; Windows NT 5.0 |
| 27 | 4 | 0.01 | 3 | 0.02 | +info@netcraft.com |
| 28 | 4 | 0.01 | 4 | 0.02 | ) - BrowseX (2.0.0 Windows |
| 29 | 4 | 0.01 | 4 | 0.02 | MSIE 5.5; Windows NT 4.0 |
| 30 | 3 | 0.00 | 3 | 0.02 | Windows CE |
| 31 | 3 | 0.00 | 3 | 0.02 | Windows ME |
| 32 | 2 | 0.00 | 2 | 0.01 | http://nmap.org/book/nse.html |
| 33 | 1 | 0.00 | 1 | 0.01 | Auto; Windows |
