You are viewing an outdated report. The latest version of this report was published on November 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) 11,511,633 hostnames, but only 2,237,957 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 2003 Count	August 2003 %	July 2003 Count	July 2003 %	Growth %
Apache	1,184,441	52.93	1,179,269	52.72	0.39
Microsoft-IIS	775,017	34.63	778,830	34.82	-0.54
Rapidsite	75,084	3.36	74,676	3.34	0.50
null	38,363	1.71	37,257	1.67	2.92
Netscape-Enterprise	31,853	1.42	32,489	1.45	-2.00
Lotus-Domino	15,567	0.70	15,601	0.70	-0.26
Apache-AdvancedExtranetServer	8,226	0.37	8,310	0.37	-1.06
A	7,480	0.33	7,348	0.33	1.75
WebSTAR	6,535	0.29	6,769	0.30	-3.50
Zeus	6,263	0.28	6,269	0.28	-0.14
WebSitePro	6,179	0.28	6,393	0.29	-3.39
WN	5,011	0.22	5,103	0.23	-1.85
Stronghold	4,635	0.21	4,837	0.22	-4.22
IdeaWebServer	4,092	0.18	4,064	0.18	0.64
NetWare-Enterprise-Web-Server	3,094	0.14	3,121	0.14	-0.91
Ipswitch-IMail	2,922	0.13	2,873	0.13	1.66
WebSite	2,796	0.12	2,820	0.13	-0.90
Netscape-FastTrack	2,411	0.11	2,544	0.11	-5.27
IBM_HTTP_Server	2,141	0.10	2,198	0.10	-2.64
FileMakerPro	2,077	0.09	2,103	0.09	-1.28
IBM_HTTP_SERVER	1,867	0.08	1,803	0.08	3.50
Oracle	1,757	0.08	1,729	0.08	1.57
Zope	1,748	0.08	1,682	0.08	3.88
IBM-HTTP-Server	1,543	0.07	1,558	0.07	-1.01
NCSA	1,517	0.07	1,583	0.07	-4.21
AppleShareIP	1,278	0.06	1,366	0.06	-6.49
FirstClass	1,235	0.06	1,239	0.06	-0.37
WebLogic	996	0.04	965	0.04	3.17
Resin	970	0.04	959	0.04	1.10
4D_WebSTAR_S	947	0.04	872	0.04	8.55
WebServer	935	0.04	899	0.04	3.96
SAMBAR	818	0.04	835	0.04	-2.08
HPWB	763	0.03	788	0.04	-3.22
Oracle9iAS	711	0.03	673	0.03	5.60
Roxen·Challenger	687	0.03	725	0.03	-5.28
Xitami	685	0.03	697	0.03	-1.77
AOLserver	677	0.03	659	0.03	2.68
Oracle_Web_Listener	668	0.03	685	0.03	-2.53
Jetty	667	0.03	606	0.03	10.02
thttpd	663	0.03	653	0.03	1.48
Cougar	633	0.03	615	0.03	2.88
CommuniGatePro	621	0.03	608	0.03	2.09
CERN	616	0.03	653	0.03	-5.71
WDaemon	613	0.03	620	0.03	-1.17
Lasso	595	0.03	592	0.03	0.46
httpd+ssl	578	0.03	548	0.02	5.43
Roxen	559	0.02	556	0.02	0.49
OSU	555	0.02	566	0.03	-1.99
Orion	553	0.02	540	0.02	2.36
Netscape-Communications	543	0.02	561	0.03	-3.25
AnWeb	525	0.02	576	0.03	-8.90
WWW	511	0.02	501	0.02	1.95
Boa	491	0.02	483	0.02	1.61
Statistics	457	0.02	457	0.02	-0.05
Squid	452	0.02	886	0.04	-49.01
Web	427	0.02	418	0.02	2.11
Novell-HTTP-Server	427	0.02	451	0.02	-5.36
MACOS_Personal_Websharing	412	0.02	437	0.02	-5.76
Domino-Go-Webserver	411	0.02	427	0.02	-3.79
OmniHTTPd	373	0.02	388	0.02	-3.91
4D_WebStar_D	361	0.02	346	0.02	4.29
squid	355	0.02	328	0.01	8.18
Inktomi	353	0.02	358	0.02	-1.44
IceWarp	309	0.01	293	0.01	5.41
Red	255	0.01	259	0.01	-1.59
OpenSA	249	0.01	264	0.01	-5.73
QuidProQuo	235	0.01	252	0.01	-6.79
UserLand	226	0.01	218	0.01	3.62
oXeo	222	0.01	216	0.01	2.73
DeleGate	219	0.01	151	0.01	44.97
Apache-NeoNova	215	0.01	204	0.01	5.34
Purveyor	212	0.01	212	0.01	-0.05
JavaWebServer	212	0.01	229	0.01	-7.47
Netrox-Apache	204	0.01	202	0.01	0.94
Ultraseek	202	0.01	189	0.01	6.83
Web_Server_4D	201	0.01	204	0.01	-1.52
Netscape-Commerce	200	0.01	220	0.01	-9.13
EZproxy	196	0.01	175	0.01	11.95
MacHTTP	193	0.01	208	0.01	-7.25
MHttpd	192	0.01	189	0.01	1.54
mod_perl	186	0.01	192	0.01	-3.17
NaviServer	179	0.01	196	0.01	-8.72
IBM	174	0.01	173	0.01	0.53
Caudium	174	0.01	180	0.01	-3.38
Worldgroup	172	0.01	166	0.01	3.57
MDNServer	169	0.01	166	0.01	1.76
Internet	162	0.01	168	0.01	-3.62
JRun	159	0.01	168	0.01	-5.40
NetCache	158	0.01	173	0.01	-8.71
Tomcat	157	0.01	148	0.01	6.03
HP	153	0.01	172	0.01	-11.09
HP-UX_Apache-based_Web_Server	151	0.01	156	0.01	-3.25
Unknown	150	0.01	153	0.01	-2.01
Wapapi	140	0.01	139	0.01	0.67
cpaneld	135	0.01	122	0.01	10.60
HTTP	128	0.01	131	0.01	-2.33
Fujitsu-InfoProvider-Pro	126	0.01	0	0.00	N/A
JARING	124	0.01	124	0.01	-0.05
WebtoB	123	0.01	0	0.00	N/A
Commerce-Builder	123	0.01	130	0.01	-5.43

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.