| Used Operating Systems by Visits |
| 1 | 13312 | 26.17 | 2672 | 56.29 | Windows NT |
| 2 | 5058 | 9.94 | 401 | 8.45 | +crawl@publiclibraryarchive.org |
| 3 | 3641 | 7.16 | 323 | 6.80 | +http://ahrefs.com/robot/ |
| 4 | 322 | 0.63 | 209 | 4.40 | Windows 95 |
| 5 | 548 | 1.08 | 169 | 3.56 | +http://www.google.com/bot.html |
| 6 | 9806 | 19.28 | 134 | 2.82 | http://www.majestic12.co.uk/bot.php?+ |
| 7 | 14102 | 27.72 | 124 | 2.61 | +http://yandex.com/bots |
| 8 | 123 | 0.24 | 91 | 1.92 | +http://www.baidu.com/search/spider.html |
| 9 | 170 | 0.33 | 57 | 1.20 | +http://www.linkdex.com/bots/ |
| 10 | 228 | 0.45 | 57 | 1.20 | +http://www.exabot.com/go/robot |
| 11 | 79 | 0.16 | 54 | 1.14 | Auto; Windows |
| 12 | 77 | 0.15 | 50 | 1.05 | Windows 3.1 |
| 13 | 71 | 0.14 | 46 | 0.97 | Windows 2000 |
| 14 | 229 | 0.45 | 44 | 0.93 | MSIE 5.5; Windows NT 5.0 |
| 15 | 49 | 0.10 | 43 | 0.91 | Windows CE |
| 16 | 273 | 0.54 | 39 | 0.82 | Windows 98 |
| 17 | 78 | 0.15 | 39 | 0.82 | +http://www.bing.com/bingbot.htm |
| 18 | 51 | 0.10 | 38 | 0.80 | ) - BrowseX (2.0.0 Windows |
| 19 | 60 | 0.12 | 37 | 0.78 | Windows ME |
| 20 | 44 | 0.09 | 37 | 0.78 | MSIE 5.5; Windows NT 4.0 |
| 21 | 56 | 0.11 | 28 | 0.59 | http://www.opensiteexplorer.org/dotbot, ... |
| 22 | 50 | 0.10 | 25 | 0.53 | +http://www.meanpath.com/meanpathbot.htm... |
| 23 | 12 | 0.02 | 6 | 0.13 | http://crawler.sistrix.net/ |
| 24 | 59 | 0.12 | 6 | 0.13 | Windows XP |
| 25 | 6 | 0.01 | 6 | 0.13 | +info@netcraft.com |
| 26 | 9 | 0.02 | 6 | 0.13 | X11 |
| 27 | 1500 | 2.95 | 3 | 0.06 | +http://OpenLinkProfiler.org/bot |
| 28 | 169 | 0.33 | 2 | 0.04 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 29 | 1 | 0.00 | 1 | 0.02 | Android 2.3.5 |
| 30 | 98 | 0.19 | 0 | 0.00 | OS/2 |
| 31 | 3 | 0.01 | 0 | 0.00 | J2ME/MIDP |
| 32 | 141 | 0.28 | 0 | 0.00 | BeOS BePC |
| 33 | 202 | 0.40 | 0 | 0.00 | Macintosh PPC |
| 34 | 2 | 0.00 | 0 | 0.00 | http://filterdb.iss.net/crawler/ |
| 35 | 4 | 0.01 | 0 | 0.00 | Macintosh |
| 36 | 10 | 0.02 | 0 | 0.00 | FreeBSD [unknown version] |
| 37 | 195 | 0.38 | 0 | 0.00 | Linux i686 [unknown version] |
| 38 | 32 | 0.06 | 0 | 0.00 | PPC Mac OS X Mach-O |
