You are viewing an outdated report. The latest version of this report was published on October 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) 14,007,566 hostnames, but only 2,357,211 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	February 2004 Count	February 2004 %	January 2004 Count	January 2004 %	Growth %
Apache	1,259,812	53.45	1,247,863	53.29	0.28
Microsoft-IIS	807,064	34.24	805,400	34.40	-0.46
Rapidsite	76,964	3.27	76,925	3.29	-0.62
null	46,733	1.98	44,774	1.91	3.68
Netscape-Enterprise	29,440	1.25	29,879	1.28	-2.13
Lotus-Domino	15,803	0.67	15,787	0.67	-0.57
Apache-AdvancedExtranetServer	9,079	0.39	8,929	0.38	1.00
A	8,290	0.35	8,208	0.35	0.32
Zeus	6,471	0.27	6,412	0.27	0.25
WebSTAR	5,641	0.24	5,804	0.25	-3.46
WebSitePro	5,136	0.22	5,325	0.23	-4.19
WN	4,557	0.19	4,630	0.20	-2.23
IdeaWebServer	4,346	0.18	4,299	0.18	0.42
Stronghold	3,931	0.17	4,104	0.18	-4.86
Ipswitch-IMail	3,254	0.14	3,194	0.14	1.20
NetWare-Enterprise-Web-Server	2,899	0.12	2,972	0.13	-3.11
WebSite	2,888	0.12	2,898	0.12	-1.01
IBM_HTTP_SERVER	2,285	0.10	2,244	0.10	1.15
Zope	2,166	0.09	2,104	0.09	2.26
IBM_HTTP_Server	2,127	0.09	2,125	0.09	-0.57
FileMakerPro	2,125	0.09	2,093	0.09	0.85
Netscape-FastTrack	2,026	0.09	2,089	0.09	-3.66
Oracle	1,925	0.08	1,952	0.08	-2.04
IBM-HTTP-Server	1,465	0.06	1,480	0.06	-1.67
WebServer	1,319	0.06	1,253	0.05	4.56
FirstClass	1,312	0.06	1,310	0.06	-0.52
NCSA	1,252	0.05	1,306	0.06	-4.78
Resin	1,234	0.05	1,204	0.05	1.81
4D_WebSTAR_S	1,204	0.05	1,185	0.05	0.92
AppleShareIP	1,158	0.05	1,176	0.05	-2.19
WebLogic	1,142	0.05	1,109	0.05	2.29
Oracle9iAS	980	0.04	955	0.04	1.93
Jetty	936	0.04	898	0.04	3.54
httpd+ssl	914	0.04	869	0.04	4.48
SAMBAR	858	0.04	864	0.04	-1.36
WDaemon	769	0.03	741	0.03	3.09
Cougar	756	0.03	735	0.03	2.17
thttpd	708	0.03	672	0.03	4.65
CommuniGatePro	696	0.03	684	0.03	1.07
AOLserver	696	0.03	683	0.03	1.22
squid	673	0.03	629	0.03	6.28
AnWeb	671	0.03	668	0.03	-0.22
Xitami	663	0.03	670	0.03	-1.71
HPWB	613	0.03	637	0.03	-4.41
Orion	596	0.03	592	0.03	0.00
Boa	595	0.03	580	0.02	1.90
Lasso	594	0.03	588	0.03	0.35
WWW	563	0.02	556	0.02	0.58
Oracle_Web_Listener	549	0.02	555	0.02	-1.74
Roxen	545	0.02	552	0.02	-1.93
OSU	536	0.02	534	0.02	-0.30
Roxen·Challenger	533	0.02	551	0.02	-3.91
CERN	525	0.02	543	0.02	-3.96
Statistics	445	0.02	437	0.02	1.15
Squid	445	0.02	440	0.02	0.46
Web	436	0.02	438	0.02	-1.12
Netscape-Communications	431	0.02	456	0.02	-6.11
IceWarp	415	0.02	408	0.02	1.04
4D_WebStar_D	401	0.02	386	0.02	3.19
MACOS_Personal_Websharing	393	0.02	394	0.02	-0.92
Novell-HTTP-Server	377	0.02	376	0.02	-0.40
Domino-Go-Webserver	352	0.01	360	0.02	-2.88
Apache-Coyote	346	0.01	223	0.01	54.12
Sun-ONE-Web-Server	329	0.01	198	0.01	65.05
Inktomi	319	0.01	324	0.01	-2.20
EZproxy	282	0.01	270	0.01	3.75
AkamaiGHost	264	0.01	234	0.01	12.07
cpaneld	262	0.01	259	0.01	0.48
OpenSA	260	0.01	257	0.01	0.49
Ultraseek	252	0.01	236	0.01	6.07
DeleGate	249	0.01	237	0.01	4.36
Apache-NeoNova	233	0.01	232	0.01	-0.24
oXeo	229	0.01	222	0.01	2.46
Red	229	0.01	245	0.01	-7.16
OmniHTTPd	223	0.01	241	0.01	-8.09
UserLand	221	0.01	234	0.01	-6.19
WebSphere	211	0.01	196	0.01	6.93
QuidProQuo	205	0.01	214	0.01	-4.85
MHttpd	201	0.01	202	0.01	-1.16
MacHTTP	193	0.01	196	0.01	-2.19
Tcl-Webserver	187	0.01	174	0.01	6.75
Web_Server_4D	184	0.01	190	0.01	-3.80
JavaWebServer	178	0.01	180	0.01	-1.77
NaviServer	168	0.01	164	0.01	1.75
HP-UX_Apache-based_Web_Server	168	0.01	163	0.01	2.38
Purveyor	166	0.01	170	0.01	-3.01
JRun	166	0.01	159	0.01	3.71
IBM	166	0.01	165	0.01	-0.07
Caudium	166	0.01	162	0.01	1.78
Netscape-Commerce	162	0.01	176	0.01	-8.57
WebtoB	161	0.01	156	0.01	2.52
Tomcat	159	0.01	158	0.01	-0.04
NetCache	159	0.01	165	0.01	-4.28
Internet	159	0.01	158	0.01	-0.04
Worldgroup	153	0.01	160	0.01	-5.01
MDNServer	153	0.01	150	0.01	1.32
mod_perl	148	0.01	152	0.01	-3.28
HP	148	0.01	147	0.01	0.01
Wapapi	146	0.01	151	0.01	-3.96
Abyss	143	0.01	0	0.00	N/A

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.