You are viewing an outdated report.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) 15,292,647 hostnames, but only 2,429,493 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 2004 Count	August 2004 %	July 2004 Count	July 2004 %	Growth %
Apache	1,316,561	54.19	1,308,272	54.06	0.23
Microsoft-IIS	814,904	33.54	814,462	33.66	-0.34
Rapidsite	76,117	3.13	76,640	3.17	-1.08
null	59,295	2.44	56,859	2.35	3.87
Netscape-Enterprise	24,877	1.02	25,507	1.05	-2.86
Lotus-Domino	15,624	0.64	15,652	0.65	-0.58
Apache-AdvancedExtranetServer	9,692	0.40	9,643	0.40	0.11
A	8,974	0.37	8,899	0.37	0.44
Zeus	5,679	0.23	5,916	0.24	-4.39
IdeaWebServer	4,783	0.20	4,769	0.20	-0.11
WebSTAR	4,676	0.19	4,848	0.20	-3.93
WebSitePro	4,255	0.18	4,355	0.18	-2.69
WN	4,055	0.17	4,121	0.17	-1.99
Ipswitch-IMail	3,393	0.14	3,380	0.14	-0.02
Stronghold	3,068	0.13	3,243	0.13	-5.77
WebSite	2,757	0.11	2,762	0.11	-0.58
IBM_HTTP_SERVER	2,667	0.11	2,601	0.11	2.13
Zope	2,512	0.10	2,452	0.10	2.04
NetWare-Enterprise-Web-Server	2,344	0.10	2,505	0.10	-6.80
IBM_HTTP_Server	2,070	0.09	2,100	0.09	-1.82
FileMakerPro	1,996	0.08	2,056	0.08	-3.31
Oracle	1,974	0.08	1,965	0.08	0.06
Sun-ONE-Web-Server	1,746	0.07	1,512	0.06	15.02
Netscape-FastTrack	1,629	0.07	1,676	0.07	-3.19
Apache-Coyote	1,438	0.06	1,266	0.05	13.13
WebServer	1,425	0.06	1,370	0.06	3.60
Resin	1,420	0.06	1,377	0.06	2.71
IBM-HTTP-Server	1,379	0.06	1,402	0.06	-2.03
FirstClass	1,349	0.06	1,345	0.06	-0.10
WebLogic	1,315	0.05	1,295	0.05	1.14
4D_WebSTAR_S	1,313	0.05	1,304	0.05	0.29
Oracle9iAS	1,081	0.04	1,099	0.05	-2.03
Jetty	1,065	0.04	1,060	0.04	0.07
squid	1,043	0.04	954	0.04	8.89
httpd+ssl	1,030	0.04	1,024	0.04	0.19
NCSA	996	0.04	1,032	0.04	-3.87
AppleShareIP	908	0.04	935	0.04	-3.27
WDaemon	867	0.04	852	0.04	1.36
Cougar	828	0.03	836	0.03	-1.35
thttpd	826	0.03	799	0.03	2.97
SAMBAR	790	0.03	799	0.03	-1.52
CommuniGatePro	756	0.03	749	0.03	0.53
AOLserver	703	0.03	705	0.03	-0.68
AnWeb	682	0.03	682	0.03	-0.40
Boa	660	0.03	652	0.03	0.82
WWW	644	0.03	625	0.03	2.63
Orion	604	0.02	599	0.02	0.43
Xitami	593	0.02	601	0.02	-1.72
Lasso	574	0.02	577	0.02	-0.92
IceWarp	533	0.02	528	0.02	0.54
Roxen	505	0.02	506	0.02	-0.60
OSU	503	0.02	519	0.02	-3.47
HPWB	493	0.02	501	0.02	-1.99
Roxen·Challenger	454	0.02	467	0.02	-3.17
4D_WebStar_D	437	0.02	424	0.02	2.66
Web	433	0.02	447	0.02	-3.52
CERN	408	0.02	423	0.02	-3.93
Oracle_Web_Listener	406	0.02	445	0.02	-9.13
Squid	384	0.02	407	0.02	-6.03
Statistics	380	0.02	388	0.02	-2.45
EZproxy	354	0.01	338	0.01	4.32
oXeo	314	0.01	319	0.01	-1.96
Netscape-Communications	310	0.01	355	0.01	-13.02
MACOS_Personal_Websharing	303	0.01	308	0.01	-2.02
Ultraseek	300	0.01	302	0.01	-1.06
cpsrvd	293	0.01	299	0.01	-2.40
WebSphere	289	0.01	284	0.01	1.36
Oracle-Application-Server-10g	279	0.01	232	0.01	19.78
Novell-HTTP-Server	271	0.01	299	0.01	-9.73
Domino-Go-Webserver	268	0.01	270	0.01	-1.14
DeleGate	256	0.01	253	0.01	0.78
Inktomi	255	0.01	267	0.01	-4.87
OpenSA	251	0.01	256	0.01	-2.34
Apache-NeoNova	248	0.01	245	0.01	0.82
NetCache	244	0.01	259	0.01	-6.17
Tcl-Webserver	242	0.01	230	0.01	4.80
UserLand	223	0.01	223	0.01	-0.40
AkamaiGHost	223	0.01	170	0.01	30.65
Red	214	0.01	215	0.01	-0.86
MHttpd	212	0.01	209	0.01	1.03
Powered	198	0.01	191	0.01	3.25
WebtoB	197	0.01	198	0.01	-0.90
Abyss	191	0.01	173	0.01	9.96
Web_Server_4D	179	0.01	174	0.01	2.46
JRun	174	0.01	169	0.01	2.55
Internet	170	0.01	162	0.01	4.52
OmniHTTPd	165	0.01	159	0.01	3.36
MacHTTP	164	0.01	173	0.01	-5.58
Jeus	163	0.01	147	0.01	10.44
Worldgroup	159	0.01	161	0.01	-1.64
IBM	156	0.01	161	0.01	-3.49
Purveyor	153	0.01	157	0.01	-2.94
JavaWebServer	151	0.01	161	0.01	-6.58
Tomcat	149	0.01	155	0.01	-4.25
Caudium	149	0.01	159	0.01	-6.66
NaviServer	142	0.01	150	0.01	-5.71
publicfile	140	0.01	0	0.00	N/A
httpd	140	0.01	0	0.00	N/A
QuidProQuo	138	0.01	151	0.01	-8.97
Wapapi	136	0.01	141	0.01	-3.93

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.