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 1690 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 31.65 54 161 384 388 391 424 432 460 488 497 510 532 550 557 565
Windows 2000 24.31 521 540 402 398 392 406 395 396 398 393 392 384 371 375 375
Linux 17.53 164 193 223 225 227 239 252 261 273 281 278 294 291 303 304
unknown 8.84 86 116 97 113 118 119 120 137 141 143 140 145 153 149 158
FreeBSD 5.91 70 80 85 85 87 95 97 102 95 95 98 92 93 94 97
F5 Big-IP 3.88 0 12 48 47 50 56 61 62 63 64 60 62 64 69 68
Solaris 8 2.95 41 46 48 47 43 46 45 46 49 44 48 46 46 47 49
AIX 1.59 43 30 30 29 23 28 28 25 27 26 26 26 26 22 23
Solaris 2/7 1.05 35 30 23 22 21 22 22 21 18 18 14 14 15 15 13
Solaris 9/10 1.03 7 11 12 10 11 12 11 10 12 16 17 17 19 18 21
NT4/Windows 98 0.59 31 25 13 12 13 13 11 9 9 10 10 9 8 8 6
HP-UX 0.28 2 7 6 6 4 5 4 3 5 4 4 4 5 5 4
AS/400 0.12 2 2 2 2 1 2 2 2 2 2 2 2 2 2 2
BSD/OS 0.06 12 7 4 3 2 2 2 3 3 0 0 0 0 0 0
Compaq Tru64 0.06 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Windows XP 0.05 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1
NetWare 0.05 0 1 1 0 1 1 1 0 1 1 1 0 1 1 1
MacOSX 0.02 0 0 1 1 1 1 1 1 1 0 0 0 0 0 0
SCO UNIX 0.02 1 1 1 0 0 0 0 0 0 0 0 0 0 0 1
NetBSD/OpenBSD 0.02 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1
Windows Server 2008 0.00 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0

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