| Used Operating Systems |
| 1 | 26438 | 43.22 | 17773 | 78.78 | +http://ahrefs.com/robot/ |
| 2 | 10765 | 17.60 | 120 | 0.53 | http://mj12bot.com/ |
| 3 | 7911 | 12.93 | 923 | 4.09 | Windows NT |
| 4 | 3186 | 5.21 | 436 | 1.93 | +http://www.google.com/bot.html |
| 5 | 2576 | 4.21 | 29 | 0.13 | http://www.majestic12.co.uk/bot.php?+ |
| 6 | 2403 | 3.93 | 2058 | 9.12 | +http://www.baidu.com/search/spider.html |
| 7 | 2070 | 3.38 | 423 | 1.88 | +http://www.linkdex.com/bots/ |
| 8 | 1908 | 3.12 | 403 | 1.79 | +http://www.bing.com/bingbot.htm |
| 9 | 1260 | 2.06 | 8 | 0.04 | +http://siteexplorer.info/Backlink-Check... |
| 10 | 1217 | 1.99 | 131 | 0.58 | +http://yandex.com/bots |
| 11 | 443 | 0.72 | 25 | 0.11 | +http://napoveda.seznam.cz/en/seznambot-... |
| 12 | 243 | 0.40 | 12 | 0.05 | +http://www.semrush.com/bot.html |
| 13 | 203 | 0.33 | 3 | 0.01 | +http://OpenLinkProfiler.org/bot |
| 14 | 139 | 0.23 | 51 | 0.23 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 15 | 95 | 0.16 | 36 | 0.16 | http://help.yahoo.com/help/us/ysearch/sl... |
| 16 | 54 | 0.09 | 6 | 0.03 | +http://www.seokicks.de/robot.html |
| 17 | 34 | 0.06 | 17 | 0.08 | Windows 98 |
| 18 | 28 | 0.05 | 21 | 0.09 | Windows 95 |
| 19 | 28 | 0.05 | 13 | 0.06 | +http://www.exabot.com/go/robot |
| 20 | 26 | 0.04 | 0 | 0.00 | http://filterdb.iss.net/crawler/ |
| 21 | 23 | 0.04 | 11 | 0.05 | Windows XP |
| 22 | 22 | 0.04 | 11 | 0.05 | +http://duckduckgo.com |
| 23 | 16 | 0.03 | 4 | 0.02 | +http://www.profound.net/domainappender |
| 24 | 9 | 0.01 | 1 | 0.00 | +http://8pw.ru/ |
| 25 | 8 | 0.01 | 4 | 0.02 | +http://sur.ly/bot.html |
| 26 | 7 | 0.01 | 6 | 0.03 | +http://8pw.ru/virus |
| 27 | 7 | 0.01 | 6 | 0.03 | MSIE 5.5; Windows NT 5.0 |
| 28 | 6 | 0.01 | 4 | 0.02 | Windows CE |
| 29 | 6 | 0.01 | 4 | 0.02 | Windows 2000 |
| 30 | 6 | 0.01 | 4 | 0.02 | Windows ME |
| 31 | 6 | 0.01 | 5 | 0.02 | Windows 3.1 |
| 32 | 4 | 0.01 | 2 | 0.01 | ) - BrowseX (2.0.0 Windows |
| 33 | 3 | 0.00 | 2 | 0.01 | +info@netcraft.com |
| 34 | 3 | 0.00 | 1 | 0.00 | +http://prlog.ru/ |
| 35 | 3 | 0.00 | 3 | 0.01 | MSIE 5.5; Windows NT 4.0 |
| 36 | 2 | 0.00 | 1 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 37 | 2 | 0.00 | 0 | 0.00 | +https://www.mojeek.com/bot.html |
| 38 | 1 | 0.00 | 1 | 0.00 | Macintosh PPC |
| 39 | 1 | 0.00 | 1 | 0.00 | http://nmap.org/book/nse.html |
| 40 | 1 | 0.00 | 0 | 0.00 | Solaris 2.5.x |
| 41 | 1 | 0.00 | 0 | 0.00 | Linux 2.0.x |
| 42 | 1 | 0.00 | 1 | 0.00 | Linux [unknown version] |
| 43 | 1 | 0.00 | 0 | 0.00 | Linux i686 [unknown version] |
