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 4424 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
Operating System	Moving Avg. %	Jan	Jan	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Jan
Linux	35.14	598	858	1084	1110	1154	1190	1236	1294	1367	1421	1440	1477	1510	1555	1574
Windows Server 2003	34.75	196	472	1048	1074	1116	1161	1202	1269	1348	1399	1446	1455	1503	1544	1608
Windows 2000	11.67	777	823	530	511	502	491	486	478	482	457	460	464	447	448	435
unknown	7.50	135	188	230	260	272	264	274	258	279	280	293	299	313	345	354
Solaris 8	2.69	117	140	113	114	114	113	111	112	113	108	108	111	104	105	102
F5 Big-IP	2.29	0	2	60	59	56	67	70	80	82	99	102	101	102	102	113
FreeBSD	1.80	35	45	56	57	62	62	64	67	71	80	84	78	72	77	76
Solaris 9/10	1.41	12	25	42	42	39	45	44	48	51	54	58	57	60	64	70
NT4/Windows 98	0.78	86	62	37	36	39	34	36	36	32	31	32	29	27	27	27
AS/400	0.49	10	24	21	21	21	21	21	21	20	21	21	21	17	18	19
HP-UX	0.36	20	17	13	14	14	14	14	16	16	16	17	17	17	12	12
IRIX	0.30	32	31	30	30	30	30	29	29	28	16	6	3	3	3	3
MacOSX	0.18	5	7	9	9	9	9	8	7	8	7	8	8	6	6	6
AIX	0.16	29	20	16	16	15	10	10	9	3	4	4	5	5	4	4
NetWare	0.15	4	2	3	3	2	5	5	6	6	5	6	6	8	7	8
NetBSD/OpenBSD	0.14	2	1	8	8	6	6	6	5	5	5	5	5	5	6	6
Solaris 2/7	0.11	26	16	3	3	3	3	3	4	5	5	5	5	4	4	4
Windows XP	0.03	0	0	1	1	1	1	1	1	1	1	1	1	1	1	1
Compaq Tru64	0.03	3	3	1	1	1	1	1	1	1	1	1	1	1	1	1
MacOS	0.02	2	1	1	1	1	1	1	1	1	1	1	1	1	1	1
BSD/OS	0.01	4	6	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