| Used Operating Systems |
| 1 | 21682 | 25.19 | 14064 | 69.75 | +http://ahrefs.com/robot/ |
| 2 | 19493 | 22.64 | 1515 | 7.51 | Windows NT |
| 3 | 18705 | 21.73 | 183 | 0.91 | http://www.majestic12.co.uk/bot.php?+ |
| 4 | 7736 | 8.99 | 617 | 3.06 | +http://www.bing.com/bingbot.htm |
| 5 | 6714 | 7.80 | 2 | 0.01 | +http://megaindex.com/crawler |
| 6 | 3140 | 3.65 | 2152 | 10.67 | +http://www.baidu.com/search/spider.html |
| 7 | 2885 | 3.35 | 449 | 2.23 | +http://www.google.com/bot.html |
| 8 | 1387 | 1.61 | 235 | 1.17 | +http://yandex.com/bots |
| 9 | 1169 | 1.36 | 251 | 1.24 | +http://www.linkdex.com/bots/ |
| 10 | 1003 | 1.17 | 1 | 0.00 | http://crawler.007ac9.net/ |
| 11 | 269 | 0.31 | 4 | 0.02 | +http://OpenLinkProfiler.org/bot |
| 12 | 244 | 0.28 | 28 | 0.14 | http://www.opensiteexplorer.org/dotbot, ... |
| 13 | 231 | 0.27 | 29 | 0.14 | +http://napoveda.seznam.cz/en/seznambot-... |
| 14 | 220 | 0.26 | 76 | 0.38 | http://help.yahoo.com/help/us/ysearch/sl... |
| 15 | 186 | 0.22 | 19 | 0.09 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 16 | 155 | 0.18 | 103 | 0.51 | Windows 95 |
| 17 | 123 | 0.14 | 110 | 0.55 | +http://www.xovibot.net/ |
| 18 | 120 | 0.14 | 29 | 0.14 | +http://www.semrush.com/bot.html |
| 19 | 119 | 0.14 | 26 | 0.13 | Windows 98 |
| 20 | 78 | 0.09 | 21 | 0.10 | Windows XP |
| 21 | 47 | 0.05 | 30 | 0.15 | Windows 3.1 |
| 22 | 40 | 0.05 | 5 | 0.02 | +http://www.seokicks.de/robot.html |
| 23 | 39 | 0.05 | 27 | 0.13 | MSIE 5.5; Windows NT 5.0 |
| 24 | 37 | 0.04 | 36 | 0.18 | +http://www.uptime.com/uptimebot |
| 25 | 35 | 0.04 | 25 | 0.12 | Windows CE |
| 26 | 28 | 0.03 | 18 | 0.09 | Windows 2000 |
| 27 | 28 | 0.03 | 23 | 0.11 | ) - BrowseX (2.0.0 Windows |
| 28 | 26 | 0.03 | 20 | 0.10 | MSIE 5.5; Windows NT 4.0 |
| 29 | 26 | 0.03 | 13 | 0.06 | +http://duckduckgo.com |
| 30 | 25 | 0.03 | 12 | 0.06 | +http://www.exabot.com/go/robot |
| 31 | 21 | 0.02 | 16 | 0.08 | Auto; Windows |
| 32 | 19 | 0.02 | 15 | 0.07 | Windows ME |
| 33 | 14 | 0.02 | 2 | 0.01 | +http://siteexplorer.info/ |
| 34 | 12 | 0.01 | 1 | 0.00 | +https://www.dataprovider.com/ |
| 35 | 8 | 0.01 | 0 | 0.00 | +http://fulltext.sblog.cz/ |
| 36 | 6 | 0.01 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 37 | 2 | 0.00 | 0 | 0.00 | J2ME/MIDP |
| 38 | 2 | 0.00 | 1 | 0.00 | +https://www.mojeek.com/bot.html |
| 39 | 2 | 0.00 | 1 | 0.00 | Linux [unknown version] |
| 40 | 2 | 0.00 | 1 | 0.00 | http://www.botje.com/plukkie.htm |
| 41 | 2 | 0.00 | 1 | 0.00 | +info@netcraft.com |
| 42 | 2 | 0.00 | 0 | 0.00 | Linux i586 [unknown version] |
| 43 | 1 | 0.00 | 1 | 0.00 | http://nmap.org/book/nse.html |
