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 6549 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 40.50 921 1391 1894 1950 2005 2091 2188 2298 2410 2449 2500 2541 2557 2600 2589
Windows Server 2003 28.86 301 633 1299 1343 1388 1468 1544 1626 1712 1793 1827 1848 1870 1915 1790
unknown 9.97 179 256 331 375 380 403 431 448 474 488 508 549 588 642 989
Windows 2000 8.97 985 945 604 582 578 565 558 551 533 539 532 526 522 511 449
Solaris 8 2.99 185 176 176 181 175 176 181 182 179 176 179 176 177 178 175
Solaris 9/10 2.21 19 52 95 89 100 109 113 123 130 135 135 142 146 147 143
FreeBSD 1.94 64 65 73 80 88 92 97 105 113 93 117 129 133 133 131
F5 Big-IP 1.11 0 0 25 27 27 39 40 68 69 71 71 74 77 77 83
NetWare 0.62 6 8 14 31 33 36 36 36 37 38 39 40 39 41 41
Solaris 2/7 0.61 70 60 38 37 38 38 39 34 34 33 33 35 35 35 36
HP-UX 0.58 27 24 27 27 27 30 29 32 35 34 34 34 35 38 39
AIX 0.47 43 38 40 38 39 39 40 42 41 41 29 24 18 19 19
NT4/Windows 98 0.42 90 57 45 26 28 27 23 20 22 22 22 23 22 22 21
MacOSX 0.22 4 4 10 9 11 12 12 12 15 13 13 15 15 16 13
AS/400 0.13 11 14 11 6 6 6 6 7 7 8 8 8 8 8 8
NetApp NetCache 0.12 2 5 8 7 6 6 6 7 7 7 7 7 7 7 7
Windows XP 0.10 0 0 3 4 4 4 5 4 6 6 6 7 7 7 7
BSD/OS 0.05 6 6 3 3 3 3 3 3 3 3 3 3 3 3 3
OS/390 0.04 0 0 4 4 4 4 4 4 4 4 4 1 1 1 1
Compaq Tru64 0.04 5 2 2 2 2 2 2 3 3 3 3 3 2 2 2
NetBSD/OpenBSD 0.03 0 1 3 2 2 3 1 2 3 1 2 1 2 2 2
OpenVMS 0.02 0 0 2 2 2 2 2 1 1 1 1 1 1 1 1
IRIX 0.01 4 3 3 3 3 0 0 0 0 0 0 0 0 0 0
MacOS 0.00 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0
SCO UNIX 0.00 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

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