You are viewing an outdated report.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) 16,770,802 hostnames, but only 2,737,289 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 2005 Count	December 2005 %	November 2005 Count	November 2005 %	Growth %
Apache	1,526,015	55.75	1,500,599	55.72	0.04
Microsoft-IIS	861,538	31.47	850,905	31.60	-0.39
null	104,541	3.82	100,004	3.71	2.84
Rapidsite	69,131	2.53	68,669	2.55	-0.96
Netscape-Enterprise	17,692	0.65	18,101	0.67	-3.85
Lotus-Domino	15,162	0.55	15,071	0.56	-1.03
A	11,186	0.41	10,888	0.40	1.07
Apache-AdvancedExtranetServer	9,404	0.34	9,583	0.36	-3.46
Apache-Coyote	8,801	0.32	8,187	0.30	5.76
IdeaWebServer	6,867	0.25	6,489	0.24	4.11
Zeus	5,355	0.20	5,326	0.20	-1.09
Sun-ONE-Web-Server	3,532	0.13	3,376	0.13	2.92
Ipswitch-IMail	3,450	0.13	3,462	0.13	-1.96
Zope	3,340	0.12	3,293	0.12	-0.22
WebSTAR	3,083	0.11	3,108	0.12	-2.41
WN	2,987	0.11	3,058	0.11	-3.91
IBM_HTTP_SERVER	2,906	0.11	2,926	0.11	-2.29
IBM_HTTP_Server	2,601	0.10	2,552	0.09	0.27
NOYB	2,590	0.09	2,095	0.08	21.62
WebSitePro	2,543	0.09	2,557	0.09	-2.16
WebServer	2,516	0.09	2,332	0.09	6.14
Resin	2,288	0.08	2,221	0.08	1.35
WebSite	2,039	0.07	2,069	0.08	-3.05
Oracle	1,948	0.07	1,878	0.07	2.04
FileMakerPro	1,708	0.06	1,718	0.06	-2.19
squid	1,707	0.06	1,611	0.06	4.24
Stronghold	1,519	0.06	1,565	0.06	-4.51
4D_WebSTAR_S	1,461	0.05	1,466	0.05	-1.96
lighttpd	1,392	0.05	1,149	0.04	19.18
nginx	1,389	0.05	1,316	0.05	3.83
Oracle-Application-Server-10g	1,385	0.05	1,331	0.05	2.37
Jetty	1,385	0.05	1,335	0.05	2.06
FirstClass	1,380	0.05	1,382	0.05	-1.76
NetWare-Enterprise-Web-Server	1,311	0.05	1,358	0.05	-5.03
WebLogic	1,269	0.05	1,235	0.05	1.09
Cougar	1,185	0.04	1,139	0.04	2.35
WDaemon	1,106	0.04	1,080	0.04	0.75
IceWarp	1,060	0.04	990	0.04	5.33
Netscape-FastTrack	1,020	0.04	1,016	0.04	-1.23
Boa	1,020	0.04	993	0.04	1.05
thttpd	1,002	0.04	980	0.04	0.59
httpd+ssl	949	0.03	994	0.04	-6.08
III	931	0.03	919	0.03	-0.34
Oracle9iAS	921	0.03	937	0.03	-3.30
CommuniGatePro	893	0.03	872	0.03	0.75
AnWeb	830	0.03	812	0.03	0.56
IBM-HTTP-Server	762	0.03	848	0.03	-11.60
AOLserver	741	0.03	727	0.03	0.27
Web	716	0.03	709	0.03	-0.65
SAMBAR	668	0.02	672	0.02	-2.21
NCSA	636	0.02	644	0.02	-2.84
AkamaiGHost	599	0.02	418	0.02	40.98
UserLand	590	0.02	298	0.01	94.77
Orion	562	0.02	549	0.02	0.71
EZproxy	550	0.02	532	0.02	1.71
AppleShareIP	539	0.02	548	0.02	-3.24
4D_WebStar_D	509	0.02	489	0.02	2.40
redir-httpd	500	0.02	504	0.02	-2.40
DeleGate	500	0.02	491	0.02	0.18
WebSphere	492	0.02	497	0.02	-2.61
cpsrvd	475	0.02	459	0.02	1.81
NetCache	456	0.02	433	0.02	3.60
Xitami	455	0.02	491	0.02	-8.84
Roxen	419	0.02	445	0.02	-7.37
OSU	409	0.01	416	0.02	-3.28
Simple,	402	0.01	415	0.02	-4.70
WebtoB	390	0.01	374	0.01	2.59
Ultraseek	381	0.01	377	0.01	-0.58
GWS	362	0.01	314	0.01	13.42
BIG-IP	331	0.01	180	0.01	80.91
HPWB	329	0.01	337	0.01	-3.96
Apache-NeoNova	292	0.01	289	0.01	-0.60
Blocked	286	0.01	263	0.01	6.98
Abyss	275	0.01	280	0.01	-3.38
Squid	262	0.01	272	0.01	-5.24
Roxen·Challenger	255	0.01	266	0.01	-5.69
Tcl-Webserver	252	0.01	261	0.01	-5.01
PowerSchool	233	0.01	189	0.01	21.28
Oracle_Web_Listener	232	0.01	258	0.01	-11.54
CERN	230	0.01	231	0.01	-2.05
OpenSA	222	0.01	226	0.01	-3.36
JRun	218	0.01	209	0.01	2.61
Statistics	211	0.01	217	0.01	-4.34
eSoft	206	0.01	207	0.01	-2.10
Webserver	206	0.01	200	0.01	1.33
kucci	199	0.01	202	0.01	-3.08
Powered	197	0.01	204	0.01	-5.00
Polaris	192	0.01	183	0.01	3.22
Indy	192	0.01	170	0.01	11.11
httpd	177	0.01	162	0.01	7.49
Domino-Go-Webserver	177	0.01	183	0.01	-4.85
Caudium	171	0.01	180	0.01	-6.54
Inktomi	166	0.01	167	0.01	-2.21
Red	165	0.01	168	0.01	-3.38
Internet	165	0.01	158	0.01	2.74
IBM	165	0.01	169	0.01	-3.95
Jeus	159	0.01	160	0.01	-2.24
Netscape-Communications	158	0.01	161	0.01	-3.46
Lasso	158	0.01	164	0.01	-5.22
Web_Server_4D	155	0.01	158	0.01	-3.49

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.