You are viewing an outdated report.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) 25,604,643 hostnames, but only 3,283,066 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 2007 Count	December 2007 %	November 2007 Count	November 2007 %	Growth %
Apache	1,896,591	57.77	1,886,653	57.74	0.05
Microsoft-IIS	912,883	27.81	913,330	27.95	-0.53
null	197,318	6.01	193,853	5.93	1.30
Rapidsite	66,792	2.03	66,712	2.04	-0.36
Apache-Coyote	20,838	0.63	19,985	0.61	3.77
A	15,196	0.46	15,104	0.46	0.13
IdeaWebServer	14,810	0.45	14,696	0.45	0.29
Lotus-Domino	13,741	0.42	13,805	0.42	-0.94
Netscape-Enterprise	11,098	0.34	11,326	0.35	-2.48
nginx	7,971	0.24	7,342	0.22	8.05
lighttpd	7,932	0.24	7,437	0.23	6.15
IBM_HTTP_Server	4,601	0.14	4,531	0.14	1.06
Zeus	4,485	0.14	4,519	0.14	-1.23
Apache-AdvancedExtranetServer	4,454	0.14	4,585	0.14	-3.32
Zope	4,332	0.13	4,329	0.13	-0.41
WebServer	4,075	0.12	4,129	0.13	-1.78
Sun-ONE-Web-Server	3,905	0.12	3,924	0.12	-0.96
NOYB	3,248	0.10	3,216	0.10	0.51
squid	3,109	0.09	3,031	0.09	2.08
Resin	3,104	0.09	3,042	0.09	1.55
Oracle-Application-Server-10g	3,056	0.09	3,008	0.09	1.11
IBM_HTTP_SERVER	2,007	0.06	2,068	0.06	-3.41
Cougar	1,937	0.06	1,899	0.06	1.51
WebServerX	1,860	0.06	1,887	0.06	-1.90
Ipswitch-IMail	1,840	0.06	1,845	0.06	-0.75
Jetty	1,550	0.05	1,546	0.05	-0.22
IceWarp	1,550	0.05	1,518	0.05	1.62
WebSTAR	1,543	0.05	1,614	0.05	-4.86
GWS	1,481	0.05	1,435	0.04	2.71
Oracle	1,479	0.05	1,503	0.05	-2.07
WDaemon	1,433	0.04	1,400	0.04	1.87
AkamaiGHost	1,425	0.04	1,048	0.03	35.32
BIG-IP	1,301	0.04	1,320	0.04	-1.91
FileMakerPro	1,227	0.04	1,209	0.04	1.00
WebLogic	1,213	0.04	1,204	0.04	0.27
Boa	1,164	0.04	1,142	0.03	1.44
WebSite	1,127	0.03	1,168	0.04	-3.97
WebSitePro	1,034	0.03	1,097	0.03	-6.19
III	1,014	0.03	1,008	0.03	0.11
thttpd	986	0.03	987	0.03	-0.58
CommuniGatePro	982	0.03	969	0.03	0.86
AnWeb	949	0.03	935	0.03	1.01
4D_WebSTAR_S	922	0.03	961	0.03	-4.52
EZproxy	894	0.03	874	0.03	1.80
PowerSchool	847	0.03	820	0.03	2.80
httpd+ssl	828	0.03	827	0.03	-0.36
LiteSpeed	795	0.02	765	0.02	3.42
AOLserver	722	0.02	730	0.02	-1.57
Web	692	0.02	701	0.02	-1.76
EdgePrism	678	0.02	652	0.02	3.49
4D_WebStar_D	639	0.02	621	0.02	2.41
cpsrvd	621	0.02	623	0.02	-0.80
WebtoB	611	0.02	627	0.02	-3.02
Stronghold	604	0.02	631	0.02	-4.74
DeleGate	537	0.02	541	0.02	-1.21
SAMBAR	534	0.02	549	0.02	-3.20
Oracle9iAS	517	0.02	521	0.02	-1.24
redir-httpd	510	0.02	509	0.02	-0.28
NetWare-Enterprise-Web-Server	493	0.02	519	0.02	-5.46
ListManagerWeb	453	0.01	441	0.01	2.23
NetCache	437	0.01	421	0.01	3.30
Server	414	0.01	231	0.01	78.36
Roxen	413	0.01	420	0.01	-2.14
Orion	413	0.01	424	0.01	-3.06
Abyss	411	0.01	381	0.01	7.36
Netscape-FastTrack	404	0.01	420	0.01	-4.27
WebSphere	402	0.01	401	0.01	-0.23
httpd	399	0.01	399	0.01	-0.48
BigIP	386	0.01	305	0.01	25.95
WWW	385	0.01	375	0.01	2.18
NCSA	376	0.01	382	0.01	-2.04
IBM-HTTP-Server	360	0.01	362	0.01	-1.03
Ultraseek	354	0.01	357	0.01	-1.31
Blocked	354	0.01	360	0.01	-2.14
Acenet	346	0.01	333	0.01	3.41
""	335	0.01	317	0.01	5.17
Sun-Java-System-Web-Server	331	0.01	308	0.01	6.95
Power	328	0.01	331	0.01	-1.38
OSU	328	0.01	320	0.01	2.01
Xitami	316	0.01	322	0.01	-2.33
Microsoft-HTTPAPI	314	0.01	296	0.01	5.57
ENIAC	310	0.01	329	0.01	-6.23
JRun	306	0.01	309	0.01	-1.44
Nost	301	0.01	292	0.01	2.59
NS_6.1	278	0.01	288	0.01	-3.93
Indy	274	0.01	251	0.01	8.64
Secured	261	0.01	262	0.01	-0.86
FirstClass	255	0.01	266	0.01	-4.59
IIS	232	0.01	228	0.01	1.27
Mittwald	226	0.01	218	0.01	3.17
gws	221	0.01	217	0.01	1.36
Jeus	219	0.01	220	0.01	-0.93
AppleShareIP	213	0.01	229	0.01	-7.43
Polaris	206	0.01	204	0.01	0.50
Apache-NeoNova	191	0.01	186	0.01	2.20
CoralWebPrx	189	0.01	181	0.01	3.92
FJapache	186	0.01	186	0.01	-0.48
UserLand	184	0.01	188	0.01	-2.60
Fujitsu-InfoProvider-Pro	181	0.01	181	0.01	-0.48
Apache2	181	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.