You are viewing an outdated report. The latest version of this report was published on December 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) 18,932,047 hostnames, but only 2,509,200 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	November 2004 Count	November 2004 %	October 2004 Count	October 2004 %	Growth %
Apache	1,372,298	54.69	1,352,114	54.52	0.31
Microsoft-IIS	831,419	33.13	826,071	33.31	-0.52
Rapidsite	73,523	2.93	73,299	2.96	-0.86
null	67,408	2.69	64,543	2.60	3.22
Netscape-Enterprise	23,389	0.93	23,795	0.96	-2.85
Lotus-Domino	15,760	0.63	15,726	0.63	-0.95
Apache-AdvancedExtranetServer	10,205	0.41	10,014	0.40	0.72
A	9,463	0.38	9,293	0.37	0.64
Zeus	5,636	0.22	5,637	0.23	-1.18
IdeaWebServer	5,139	0.20	5,041	0.20	0.76
WebSTAR	4,327	0.17	4,408	0.18	-2.98
WN	3,903	0.16	4,109	0.17	-6.12
WebSitePro	3,636	0.14	3,826	0.15	-6.07
Ipswitch-IMail	3,475	0.14	3,420	0.14	0.43
IBM_HTTP_SERVER	2,883	0.11	2,812	0.11	1.33
Zope	2,738	0.11	2,628	0.11	2.97
Stronghold	2,731	0.11	2,774	0.11	-2.70
WebSite	2,561	0.10	2,611	0.11	-3.06
Apache-Coyote	2,207	0.09	1,930	0.08	13.02
NetWare-Enterprise-Web-Server	2,147	0.09	2,237	0.09	-5.14
Sun-ONE-Web-Server	2,144	0.09	2,009	0.08	5.48
IBM_HTTP_Server	2,098	0.08	2,096	0.08	-1.07
FileMakerPro	1,998	0.08	2,003	0.08	-1.41
Oracle	1,965	0.08	1,982	0.08	-2.01
WebServer	1,743	0.07	1,610	0.06	7.00
Resin	1,553	0.06	1,519	0.06	1.05
Netscape-FastTrack	1,497	0.06	1,559	0.06	-5.09
WebLogic	1,390	0.06	1,345	0.05	2.14
FirstClass	1,389	0.06	1,368	0.06	0.35
4D_WebSTAR_S	1,381	0.06	1,376	0.06	-0.80
IBM-HTTP-Server	1,279	0.05	1,314	0.05	-3.80
Jetty	1,141	0.05	1,108	0.04	1.78
Oracle9iAS	1,114	0.04	1,099	0.04	0.19
squid	1,096	0.04	1,053	0.04	2.87
httpd+ssl	1,072	0.04	1,070	0.04	-0.98
WDaemon	922	0.04	893	0.04	2.05
NCSA	920	0.04	955	0.04	-4.79
Cougar	919	0.04	881	0.04	3.10
thttpd	845	0.03	833	0.03	0.26
AppleShareIP	818	0.03	853	0.03	-5.22
Boa	791	0.03	799	0.03	-2.15
CommuniGatePro	790	0.03	775	0.03	0.75
SAMBAR	777	0.03	795	0.03	-3.40
AnWeb	771	0.03	733	0.03	3.96
AOLserver	707	0.03	706	0.03	-1.02
WWW	666	0.03	663	0.03	-0.72
IceWarp	648	0.03	577	0.02	11.00
Orion	604	0.02	612	0.02	-2.46
Xitami	594	0.02	599	0.02	-1.99
Lasso	563	0.02	570	0.02	-2.38
Roxen	506	0.02	506	0.02	-1.16
OSU	502	0.02	499	0.02	-0.57
Oracle-Application-Server-10g	463	0.02	394	0.02	16.15
4D_WebStar_D	455	0.02	451	0.02	-0.29
HPWB	435	0.02	446	0.02	-3.60
Web	433	0.02	450	0.02	-4.90
Roxen·Challenger	433	0.02	435	0.02	-1.62
oXeo	389	0.02	378	0.02	1.71
EZproxy	388	0.02	370	0.01	3.64
CERN	374	0.01	398	0.02	-7.12
Squid	370	0.01	388	0.02	-5.75
Oracle_Web_Listener	369	0.01	403	0.02	-9.50
WebSphere	368	0.01	344	0.01	5.73
Statistics	363	0.01	362	0.01	-0.89
cpsrvd	346	0.01	339	0.01	0.88
Ultraseek	324	0.01	328	0.01	-2.37
NetCache	283	0.01	288	0.01	-2.88
MACOS_Personal_Websharing	277	0.01	277	0.01	-1.16
Apache-NeoNova	277	0.01	261	0.01	4.90
Tcl-Webserver	270	0.01	258	0.01	3.43
DeleGate	264	0.01	260	0.01	0.36
OpenSA	257	0.01	251	0.01	1.20
AkamaiGHost	257	0.01	252	0.01	0.80
Netscape-Communications	253	0.01	272	0.01	-8.07
Novell-HTTP-Server	249	0.01	251	0.01	-1.95
Domino-Go-Webserver	239	0.01	253	0.01	-6.63
Inktomi	238	0.01	239	0.01	-1.58
WebtoB	233	0.01	216	0.01	6.62
UserLand	217	0.01	216	0.01	-0.71
Abyss	216	0.01	202	0.01	5.69
MHttpd	214	0.01	212	0.01	-0.23
Powered	209	0.01	204	0.01	1.26
Red	207	0.01	213	0.01	-3.95
JRun	203	0.01	184	0.01	9.04
Jeus	175	0.01	176	0.01	-1.73
Web_Server_4D	173	0.01	178	0.01	-3.94
Internet	163	0.01	162	0.01	-0.55
OmniHTTPd	161	0.01	156	0.01	2.00
Worldgroup	157	0.01	158	0.01	-1.79
IBM	157	0.01	154	0.01	0.76
Caudium	157	0.01	162	0.01	-4.21
Purveyor	154	0.01	154	0.01	-1.16
MacHTTP	151	0.01	157	0.01	-4.94
HTTPD2	150	0.01	0	0.00	N/A
WindWeb	149	0.01	150	0.01	-1.82
httpd	146	0.01	145	0.01	-0.48
Tomcat	145	0.01	147	0.01	-2.51
QuidProQuo	145	0.01	144	0.01	-0.48
Wapapi	143	0.01	143	0.01	-1.16
Fujitsu-InfoProvider-Pro	138	0.01	143	0.01	-4.62

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.