You are viewing an outdated report.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) 8,523,653 hostnames, but only 1,933,463 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	December 2002 Count	December 2002 %	November 2002 Count	November 2002 %	Growth %
Apache	1,000,006	51.72	1,015,838	51.41	0.61
Microsoft-IIS	680,241	35.18	697,778	35.31	-0.37
Rapidsite	60,929	3.15	62,985	3.19	-1.13
Netscape-Enterprise	34,242	1.77	35,874	1.82	-2.45
null	29,150	1.51	30,016	1.52	-0.75
Lotus-Domino	13,903	0.72	14,424	0.73	-1.49
WebSitePro	7,575	0.39	8,068	0.41	-4.04
WebSTAR	7,556	0.39	7,920	0.40	-2.50
Apache-AdvancedExtranetServer	6,845	0.35	6,965	0.35	0.44
FrontPage	6,095	0.32	6,353	0.32	-1.95
Zeus	5,676	0.29	5,794	0.29	0.12
Stronghold	5,551	0.29	5,875	0.30	-3.43
WN	5,230	0.27	5,635	0.29	-5.14
A	5,230	0.27	5,326	0.27	0.36
IdeaWebServer	3,595	0.19	3,693	0.19	-0.51
NetWare-Enterprise-Web-Server	3,052	0.16	3,130	0.16	-0.35
Netscape-FastTrack	2,932	0.15	3,135	0.16	-4.42
WebSite	2,456	0.13	2,542	0.13	-1.26
IBM_HTTP_Server	2,137	0.11	2,205	0.11	-0.95
Ipswitch-IMail	2,083	0.11	2,044	0.10	4.15
NCSA	2,066	0.11	2,229	0.11	-5.27
FileMakerPro	1,922	0.10	1,937	0.10	1.41
Squid	1,639	0.08	2,085	0.11	-19.66
AppleShareIP	1,553	0.08	1,614	0.08	-1.66
IBM-HTTP-Server	1,471	0.08	1,459	0.07	3.04
Oracle	1,283	0.07	1,266	0.06	3.57
Roxen·Challenger	1,174	0.06	1,250	0.06	-4.01
Zope	1,128	0.06	1,102	0.06	4.61
IBM_HTTP_SERVER	1,068	0.06	996	0.05	9.59
FirstClass	1,051	0.05	1,056	0.05	1.72
HPWB	973	0.05	1,019	0.05	-2.41
CERN	831	0.04	870	0.04	-2.38
Oracle_Web_Listener	808	0.04	872	0.04	-5.30
WebLogic	741	0.04	745	0.04	1.65
SAMBAR	732	0.04	732	0.04	2.20
Xitami	689	0.04	700	0.04	0.60
Netscape-Communications	680	0.04	749	0.04	-7.21
Resin	615	0.03	583	0.03	7.81
OSU	584	0.03	621	0.03	-3.89
Novell-HTTP-Server	569	0.03	606	0.03	-4.04
Roxen	563	0.03	561	0.03	2.57
AOLserver	529	0.03	537	0.03	0.68
Lasso	518	0.03	538	0.03	-1.60
4D_WebSTAR_S	510	0.03	469	0.02	11.14
thttpd	497	0.03	468	0.02	8.53
Domino-Go-Webserver	490	0.03	522	0.03	-4.06
Statistics	443	0.02	452	0.02	0.17
Orion	440	0.02	429	0.02	4.82
CommuniGatePro	436	0.02	432	0.02	3.15
WWW	426	0.02	427	0.02	1.96
MACOS_Personal_Websharing	424	0.02	437	0.02	-0.84
Web	390	0.02	389	0.02	2.46
Cougar	390	0.02	417	0.02	-4.42
AnWeb	386	0.02	380	0.02	3.82
WDaemon	364	0.02	360	0.02	3.34
Patchy	346	0.02	379	0.02	-6.70
Inktomi	345	0.02	337	0.02	4.63
httpd+ssl	340	0.02	288	0.01	20.65
OmniHTTPd	327	0.02	343	0.02	-2.57
Boa	305	0.02	288	0.01	8.23
Oracle9iAS	300	0.02	273	0.01	12.31
Red	278	0.01	316	0.02	-10.09
QuidProQuo	271	0.01	286	0.01	-3.16
Netscape-Commerce	270	0.01	292	0.01	-5.50
JavaWebServer	256	0.01	273	0.01	-4.16
Apache-NeoNova	244	0.01	275	0.01	-9.32
mod_perl	241	0.01	271	0.01	-9.11
Jetty	239	0.01	200	0.01	22.13
MacHTTP	232	0.01	252	0.01	-5.91
4D_WebStar_D	225	0.01	215	0.01	6.96
OpenSA	220	0.01	205	0.01	9.68
Purveyor	212	0.01	225	0.01	-3.70
NaviServer	204	0.01	223	0.01	-6.51
UserLand	203	0.01	208	0.01	-0.26
Web_Server_4D	202	0.01	205	0.01	0.71
Caudium	198	0.01	197	0.01	2.72
Worldgroup	186	0.01	184	0.01	3.31
Netrox-Apache	183	0.01	201	0.01	-6.95
Ultraseek	168	0.01	179	0.01	-4.08
IBM	161	0.01	165	0.01	-0.28
Commerce-Builder	160	0.01	187	0.01	-12.55
squid	153	0.01	147	0.01	6.37
MHttpd	151	0.01	157	0.01	-1.70
NetCache	141	0.01	145	0.01	-0.62
Powered	139	0.01	148	0.01	-4.01
Internet	138	0.01	147	0.01	-4.06
Unknown	136	0.01	142	0.01	-2.12
MDNServer	134	0.01	148	0.01	-7.47
Sun_WebServer	133	0.01	143	0.01	-4.95
Microsoft-PWS-95	124	0.01	135	0.01	-6.13
WebServer	121	0.01	0	0.00	N/A
SilverStream	121	0.01	133	0.01	-7.02
ALEPH	120	0.01	127	0.01	-3.43
Microsoft-PWS	119	0.01	124	0.01	-1.92
JRun	113	0.01	110	0.01	4.99
PoSHTTPd	112	0.01	117	0.01	-2.17
Oracle_Web_listener3.0.2.0.0	110	0.01	116	0.01	-3.08
David-WebBox	108	0.01	112	0.01	-1.45
IceWarp	107	0.01	0	0.00	N/A
HP	107	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.