You are viewing an outdated report. The latest version of this report was published on September 1st, 2024

Web server surveys have been around for a long time. One of the problems with running a survey is how to produce meaningful results given the number of choices with the collection and reporting methodologies. Some examples:

• How does one treat wildcarded DNS sites that generate unlimited number of unique hostnames, all residing on the same system?
• How does one treat taste-testing web sites that do not have any unique content on them at all?
• If very large number of web sites reside on a single IP address, is it a a case of search engine spamming, a large number of low traffic web sites on a single platform, or a web hosting facility using load-redirection for a large number of legitimate web sites?
• How "greedy" or aggressive should the hunt for new web sites be?

All of the above are issues that our conventional web server survey deals with. The biggest issue that comes up time and again, however, is the fact that our conventional survey counts unique hostnames, not unique installations. This can seriously impact market share statistics. Case in point: the data set used both web server survey reports contains (for the last month's data set) 25,098,650 hostnames, but only 3,206,214 distinct IP addresses.

This particular report addresses this in part by counting unique IP addresses in an attempt at answering the question of how many installations of a particular server might exist. By using the IP address as a proxy for the physical hardware on which a server is running, we still need to be aware that it is not a perfect 1 to 1 mapping:

• A load balanced network of servers might share a single public facing IP address, and be undercounted.
• A single server may have multiple public IP addresses bound to one or more network cards on the system, and thus still be counted more than once.

While not a perfect solution, we feel that counting web servers by IP will give a much closer view of the number of server installs for a given technology.

Click any server to see detailed graphs and histories.

Server	August 2007 Count	August 2007 %	July 2007 Count	July 2007 %	Growth %
Apache	1,847,855	57.63	1,846,498	57.57	0.11
Microsoft-IIS	909,308	28.36	913,400	28.48	-0.41
null	182,482	5.69	180,114	5.62	1.35
Rapidsite	65,990	2.06	66,252	2.07	-0.36
Apache-Coyote	18,624	0.58	18,501	0.58	0.70
A	14,490	0.45	14,421	0.45	0.52
Lotus-Domino	14,052	0.44	14,161	0.44	-0.73
IdeaWebServer	13,571	0.42	13,291	0.41	2.15
Netscape-Enterprise	11,978	0.37	12,203	0.38	-1.81
lighttpd	6,053	0.19	5,853	0.18	3.46
nginx	5,850	0.18	5,569	0.17	5.09
Apache-AdvancedExtranetServer	5,028	0.16	5,203	0.16	-3.33
Zeus	4,587	0.14	4,634	0.14	-0.98
IBM_HTTP_Server	4,288	0.13	4,209	0.13	1.92
Zope	4,214	0.13	4,263	0.13	-1.11
Sun-ONE-Web-Server	3,871	0.12	3,879	0.12	-0.17
WebServer	3,836	0.12	3,813	0.12	0.64
NOYB	3,813	0.12	4,866	0.15	-21.61
Resin	3,000	0.09	3,014	0.09	-0.43
Oracle-Application-Server-10g	2,928	0.09	2,889	0.09	1.39
squid	2,727	0.09	2,681	0.08	1.75
IBM_HTTP_SERVER	2,134	0.07	2,181	0.07	-2.12
Ipswitch-IMail	2,006	0.06	2,071	0.06	-3.10
Cougar	1,831	0.06	1,822	0.06	0.53
WebSTAR	1,815	0.06	1,866	0.06	-2.70
Oracle	1,544	0.05	1,570	0.05	-1.62
GWS	1,508	0.05	1,477	0.05	2.14
Jetty	1,507	0.05	1,545	0.05	-2.42
IceWarp	1,469	0.05	1,449	0.05	1.42
WebLogic	1,464	0.05	1,383	0.04	5.90
WebServerX	1,367	0.04	1,262	0.04	8.36
WDaemon	1,346	0.04	1,373	0.04	-1.93
BIG-IP	1,323	0.04	1,245	0.04	6.31
WebSitePro	1,269	0.04	1,237	0.04	2.63
WebSite	1,234	0.04	1,185	0.04	4.18
FileMakerPro	1,229	0.04	1,264	0.04	-2.73
Boa	1,194	0.04	1,209	0.04	-1.20
thttpd	1,020	0.03	1,035	0.03	-1.41
4D_WebSTAR_S	1,017	0.03	1,029	0.03	-1.13
III	1,003	0.03	1,002	0.03	0.14
CommuniGatePro	980	0.03	979	0.03	0.14
AnWeb	954	0.03	1,048	0.03	-8.93
httpd+ssl	886	0.03	895	0.03	-0.97
EZproxy	807	0.03	805	0.03	0.29
AOLserver	751	0.02	752	0.02	-0.09
AkamaiGHost	730	0.02	757	0.02	-3.53
PowerSchool	723	0.02	709	0.02	2.01
Web	706	0.02	716	0.02	-1.36
Stronghold	672	0.02	696	0.02	-3.41
LiteSpeed	648	0.02	626	0.02	3.55
cpsrvd	604	0.02	592	0.02	2.07
4D_WebStar_D	593	0.02	601	0.02	-1.29
EdgePrism	582	0.02	553	0.02	5.28
WebtoB	577	0.02	560	0.02	3.08
Oracle9iAS	571	0.02	587	0.02	-2.69
NetWare-Enterprise-Web-Server	565	0.02	600	0.02	-5.80
SAMBAR	547	0.02	583	0.02	-6.14
DeleGate	535	0.02	541	0.02	-1.07
NetCache	514	0.02	524	0.02	-1.87
redir-httpd	509	0.02	509	0.02	0.04
Netscape-FastTrack	482	0.02	517	0.02	-6.73
Orion	463	0.01	477	0.01	-2.90
Roxen	435	0.01	434	0.01	0.27
ListManagerWeb	412	0.01	399	0.01	3.30
NCSA	398	0.01	406	0.01	-1.93
IBM-HTTP-Server	383	0.01	391	0.01	-2.01
WebSphere	382	0.01	376	0.01	1.63
Ultraseek	370	0.01	369	0.01	0.31
Abyss	358	0.01	351	0.01	2.03
WWW	344	0.01	220	0.01	56.42
Xitami	335	0.01	340	0.01	-1.43
OSU	334	0.01	341	0.01	-2.02
Acenet	331	0.01	327	0.01	1.26
httpd	311	0.01	299	0.01	4.05
FirstClass	298	0.01	325	0.01	-8.27
""	298	0.01	285	0.01	4.60
Nost	292	0.01	292	0.01	0.04
Power	284	0.01	302	0.01	-5.92
JRun	277	0.01	285	0.01	-2.77
ENIAC	273	0.01	263	0.01	3.84
NS_6.1	252	0.01	232	0.01	8.66
IIS	250	0.01	244	0.01	2.50
Indy	244	0.01	260	0.01	-6.12
AppleShareIP	244	0.01	249	0.01	-1.97
Microsoft-HTTPAPI	242	0.01	236	0.01	2.58
Sun-Java-System-Web-Server	240	0.01	209	0.01	14.88
Secured	233	0.01	215	0.01	8.41
Jeus	224	0.01	232	0.01	-3.41
Server	213	0.01	229	0.01	-6.95
lighttpd-yt	199	0.01	0	0.00	N/A
UserLand	197	0.01	179	0.01	10.10
Mittwald	196	0.01	190	0.01	3.20
Tcl-Webserver	194	0.01	202	0.01	-3.92
Polaris	188	0.01	201	0.01	-6.43
Webserver	185	0.01	176	0.01	5.15
FJapache	180	0.01	175	0.01	2.90
Apache-NeoNova	176	0.01	182	0.01	-3.26
HPWB	173	0.01	173	0.01	0.04
Fujitsu-InfoProvider-Pro	169	0.01	167	0.01	1.24
Blocked	162	0.01	174	0.01	-6.86

Note: Readers are cautioned that the Growth percentages are based on a server's market share penetration rather than the absolute number of servers we detected. Thus, it is possible for the number of servers to increase, while the growth is actually a negative value.