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 323341 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
Windows Server 2003 36.29 26437 52211 89150 90577 92767 94485 97960 101195 109547 110817 113926 116210 117427 119002 120215
Linux 28.61 54420 68332 76735 77383 78318 78985 81537 82971 86084 86792 87939 88810 89990 91279 92520
unknown 11.40 18559 22500 23432 25981 25998 26091 26923 28394 29928 33230 34749 36935 38746 39345 40841
Windows 2000 10.56 72521 65043 38555 37169 36357 35281 34557 33722 33925 32692 32113 31098 29838 29113 28384
FreeBSD 3.83 8383 9904 10948 10948 11171 11234 11416 11457 11714 11670 11796 11791 11808 11986 11943
F5 Big-IP 3.67 0 2068 7548 7256 7535 8421 8744 9421 10924 11249 11480 11374 12297 12921 13309
Solaris 8 1.69 7012 6893 5565 5443 5350 5286 5218 5268 5365 5290 5209 5141 5015 4919 4852
Solaris 9/10 1.32 1490 2668 3788 3524 3581 3654 3701 3826 3981 4038 4062 4190 4129 4155 4245
NT4/Windows 98 0.51 6522 3736 2036 1947 1861 1764 1689 1643 1604 1535 1485 1434 1383 1336 1301
MacOSX 0.50 1071 1312 1451 1438 1446 1456 1448 1500 1574 1570 1548 1560 1538 1536 1513
AIX 0.28 2251 2212 2059 2055 2048 2034 2039 2046 2105 361 364 345 353 356 348
HP-UX 0.26 937 749 851 846 828 833 806 781 798 795 800 795 781 792 798
Solaris 2/7 0.22 2102 1518 930 881 848 813 792 715 682 675 656 615 601 556 539
AS/400 0.22 503 669 652 625 627 629 617 626 653 669 669 685 712 685 686
NetWare 0.17 460 446 538 523 515 514 536 543 575 542 535 524 516 513 504
Compaq Tru64 0.12 1012 659 437 427 414 416 416 411 401 394 371 370 344 331 324
BSD/OS 0.09 827 454 323 315 312 304 295 283 286 285 294 273 267 258 254
NetBSD/OpenBSD 0.07 260 236 218 214 211 194 197 186 196 187 187 193 196 202 203
MacOS 0.05 417 298 201 197 192 185 178 171 165 158 158 151 147 146 142
Windows XP 0.04 0 0 95 97 96 90 105 117 135 138 146 139 143 144 153
IRIX 0.04 348 174 160 152 145 126 124 121 119 113 108 108 99 98 97
OpenVMS 0.02 26 26 46 44 45 46 46 46 46 43 47 46 47 46 46
OS/390 0.02 6 3 57 57 55 56 55 58 61 61 62 59 62 62 64
NetApp NetCache 0.01 25 19 24 22 22 24 23 23 24 23 26 24 23 23 26
SCO UNIX 0.01 34 26 25 23 20 19 18 22 20 18 20 18 21 21 21
SunOS 4 0.00 4 3 2 2 2 2 2 2 2 2 2 2 2 2 2
NT3/Windows 95 0.00 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1
OS/2 0.00 0 0 3 1 0 1 0 0 0 0 0 0 0 0 0
Windows Server 2008 0.00 0 0 0 0 0 0 0 0 0 1 3 3 6 5 7
VM 0.00 2 3 3 3 3 3 3 3 3 3 3 3 3 3 3

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