Operating System Software used at Sites in June 2006

This analysis relates to those sites found in the survey where the common name in the certificate matched the hostname, and the certificate's digital signature was not detected as being self-signed.

Responses were obtained from 499066 sites, with the following distribution of operating system software.

Other views of this data are on separate pages:

The following pie chart shows the moving average shares over time.

The next graph shows the actual development of shares over time.

Market Shares by Operating System Version to June 2006

Operating System Moving
Avg. %		 2004 2005 2006
Jun Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun
Linux 35.04 92009 128514 134325 137384 141869 144409 150325 156287 161295 164336 168734 173407 178931 179469
Windows Server 2003 21.62 22268 59220 63810 67727 70696 74456 78833 84343 89045 92956 97716 101770 132265 134713
Windows 2000 21.21 120070 112430 113053 109432 110479 105967 108249 110026 109070 107799 106462 105426 79990 78230
unknown 7.89 16492 32226 31908 36652 33430 40658 34499 36678 38007 38519 40276 41756 35211 35791
FreeBSD 4.55 16888 17916 18483 18654 19405 19672 19968 20653 21013 21296 21786 22114 22704 22676
Solaris 8 2.81 13770 13327 13591 13256 13295 13303 13304 13580 13471 13322 13109 12937 12822 12645
NT4/Windows 98 1.45 16678 9225 8816 8065 7806 6653 7152 7169 6939 6652 6283 6053 5786 5563
Solaris 9/10 1.08 1937 3373 3847 3992 4151 4394 4444 4753 4871 5052 5288 5421 5713 5794
F5 Big-IP 0.91 0 0 0 0 0 0 3076 3008 3074 3190 3096 2986 8107 8438
Solaris 2/7 0.72 6231 4116 4052 3813 3780 3690 3586 3590 3435 3333 3210 3128 3010 2915
AIX 0.65 3235 3237 3107 3022 3081 3050 3050 3028 3059 3054 2985 2973 3058 2951
MacOSX 0.43 1322 1853 1890 1923 1886 1939 1898 1952 1973 1992 2016 2063 2185 2171
HP-UX 0.40 1412 1785 1788 1711 1790 1819 1866 1869 1646 1666 1852 1891 1944 1966
BSD/OS 0.25 2710 1388 1366 1282 1285 1243 1237 1203 1146 1112 1082 1093 1152 1136
AS/400 0.22 1028 868 1061 1036 1060 1056 1055 1063 1047 1055 1053 1076 1011 1008
NetWare 0.17 752 713 699 669 692 704 720 764 770 791 815 834 890 874
Compaq Tru64 0.16 1307 981 936 898 840 821 784 779 746 728 718 682 618 617
IRIX 0.14 955 744 747 737 729 720 719 696 606 599 669 669 651 630
NetBSD/OpenBSD 0.13 444 557 578 560 552 534 560 614 603 648 643 631 664 659
MacOS 0.08 703 470 458 442 439 423 412 409 399 387 388 364 349 336
Windows XP 0.02 0 0 0 0 0 0 0 0 0 0 0 0 215 210
NetApp NetCache 0.02 55 282 305 317 331 75 69 58 57 64 61 59 60 61
SCO UNIX 0.01 77 57 59 58 65 58 59 59 57 51 54 50 51 51
OpenVMS 0.01 36 32 32 32 30 31 31 34 33 32 34 34 59 59
OS/390 0.01 8 3 3 4 2 4 1 2 3 2 2 1 93 93
SunOS 4 0.00 8 5 4 4 5 4 5 4 4 4 4 4 4 4
NT3/Windows 95 0.00 1 1 1 1 1 1 0 0 0 0 0 0 0 0
Cisco 0.00 1 1 1 1 1 1 1 1 1 1 1 1 1 1
OS/2 0.00 4 5 3 3 3 3 3 4 3 3 5 3 3 1
VM 0.00 3 3 5 5 6 5 5 4 4 4 4 4 4 4

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