Operating System Software used at Sites in January 2008

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 794008 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 January 2008

Operating System Moving
Avg. %		 2005 2006 2007 2008
Jan Jan Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan
Linux 38.15 104844 161295 213870 218403 223634 227426 245162 252189 264805 269741 275944 282506 293099 299137 305532
Windows Server 2003 32.98 39647 89045 169263 171977 176907 183797 203187 212656 230855 235448 242386 248618 260797 264451 270350
unknown 8.94 27776 38007 42809 48707 49786 48007 50634 51413 56755 60453 63553 67266 71175 74573 76766
Windows 2000 8.43 113316 109070 67254 65372 64296 62943 62814 61721 62552 60726 59972 58591 57018 55940 54591
FreeBSD 4.11 15119 21013 25669 25898 26392 26775 27565 28019 29309 29506 29949 30218 30559 30929 31179
F5 Big-IP 2.45 0 3074 11370 10968 11353 12801 13695 15122 16851 17513 18011 18257 19654 20577 21417
Solaris 8 1.46 12938 13471 11323 11149 11016 10885 10689 10706 10783 10637 10531 10391 10130 9851 9693
Solaris 9/10 1.17 2472 4871 7259 6925 7088 7249 7454 7784 8161 8269 8401 8719 8852 8965 9175
NT4/Windows 98 0.41 11346 6939 3849 3663 3500 3318 3159 3049 2992 2845 2759 2658 2534 2461 2375
MacOSX 0.39 1491 1973 2413 2427 2493 2542 2651 2764 2915 2940 2941 2969 2975 2944 2881
HP-UX 0.29 1671 1646 1974 1978 1977 2018 1996 2007 2085 2094 2113 2114 2109 2145 2189
Solaris 2/7 0.25 4693 3435 2253 2165 2132 2073 2022 1933 1886 1829 1767 1652 1625 1572 1543
AIX 0.21 3304 3059 2753 2737 2715 2688 2692 2690 2738 971 960 936 903 881 864
NetWare 0.15 722 770 979 988 990 983 1022 1040 1111 1062 1061 1068 1078 1083 1069
AS/400 0.15 797 1047 1035 994 997 1007 1005 1023 1055 1067 1073 1102 1130 1099 1101
BSD/OS 0.11 1612 1146 912 897 881 861 845 842 844 793 796 768 753 739 712
NetBSD/OpenBSD 0.10 464 603 678 677 673 669 720 722 745 735 746 758 783 788 782
Windows XP 0.06 0 0 259 262 266 275 360 387 406 415 439 430 498 502 512
IRIX 0.06 717 606 549 536 517 485 486 473 473 452 429 423 404 401 395
Compaq Tru64 0.06 1136 746 489 478 466 466 465 462 450 442 415 406 382 366 354
MacOS 0.03 521 399 264 263 260 246 241 229 224 216 216 208 205 204 196
OpenVMS 0.01 33 33 64 62 63 65 68 66 66 66 70 68 70 67 70
OS/390 0.01 7 3 97 96 92 91 90 90 96 96 100 94 99 94 99
NetApp NetCache 0.01 55 57 63 57 57 60 57 60 61 59 64 60 56 57 61
SCO UNIX 0.01 70 57 49 49 45 43 40 48 46 45 48 47 48 47 50
Cisco 0.00 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0
SunOS 4 0.00 4 4 3 3 3 3 3 3 3 3 3 3 3 3 3
NT3/Windows 95 0.00 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1
OS/2 0.00 3 3 6 3 3 4 3 3 2 2 2 3 4 2 2
Windows Server 2008 0.00 0 0 0 0 0 0 0 0 12 14 16 24 37 38 43
VM 0.00 2 4 4 4 4 5 4 4 4 4 5 5 5 3 3

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