You are viewing an outdated report.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) 33,241,937 hostnames, but only 3,594,514 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 2008 Count	August 2008 %	July 2008 Count	July 2008 %	Growth %
Apache	2,086,236	58.04	1,982,351	58.02	0.03
Microsoft-IIS	968,502	26.94	927,337	27.14	-0.73
null	235,241	6.54	217,460	6.36	2.83
Rapidsite	63,858	1.78	63,859	1.87	-4.95
Apache-Coyote	25,465	0.71	23,774	0.70	1.81
IdeaWebServer	20,168	0.56	18,557	0.54	3.31
A	17,059	0.47	16,274	0.48	-0.36
nginx	16,105	0.45	13,408	0.39	14.17
lighttpd	15,173	0.42	14,054	0.41	2.62
Lotus-Domino	13,512	0.38	13,336	0.39	-3.69
Netscape-Enterprise	9,795	0.27	9,773	0.29	-4.73
IBM_HTTP_Server	5,291	0.15	4,851	0.14	3.68
Zope	4,596	0.13	4,434	0.13	-1.47
Zeus	4,190	0.12	4,100	0.12	-2.86
Sun-ONE-Web-Server	3,935	0.11	3,792	0.11	-1.36
squid	3,752	0.10	3,304	0.10	7.94
WebServer	3,469	0.10	3,805	0.11	-13.34
Oracle-Application-Server-10g	3,469	0.10	3,344	0.10	-1.39
Apache-AdvancedExtranetServer	3,443	0.10	3,628	0.11	-9.79
Resin	3,327	0.09	3,175	0.09	-0.40
NOYB	3,006	0.08	3,007	0.09	-4.98
Cougar	2,116	0.06	1,948	0.06	3.25
GWS	1,850	0.05	1,745	0.05	0.77
IBM_HTTP_SERVER	1,738	0.05	1,763	0.05	-6.29
Microsoft-HTTPAPI	1,599	0.04	931	0.03	63.26
IceWarp	1,595	0.04	1,550	0.05	-2.19
Ipswitch-IMail	1,542	0.04	1,570	0.05	-6.64
LiteSpeed	1,539	0.04	1,184	0.03	23.55
WDaemon	1,522	0.04	1,454	0.04	-0.50
Jetty	1,521	0.04	1,513	0.04	-4.44
BigIP	1,508	0.04	1,163	0.03	23.25
WebServerX	1,402	0.04	1,439	0.04	-7.39
Oracle	1,393	0.04	1,404	0.04	-5.69
WebSTAR	1,284	0.04	1,308	0.04	-6.69
Boa	1,242	0.03	1,158	0.03	1.95
WWW	1,192	0.03	917	0.03	23.56
WebLogic	1,179	0.03	1,216	0.04	-7.84
AkamaiGHost	1,103	0.03	388	0.01	170.22
thttpd	1,089	0.03	1,001	0.03	3.41
III	1,069	0.03	1,040	0.03	-2.30
FileMakerPro	1,052	0.03	1,108	0.03	-9.75
EZproxy	1,045	0.03	986	0.03	0.74
Web	1,030	0.03	972	0.03	0.73
WebSite	1,004	0.03	1,007	0.03	-5.23
CommuniGatePro	997	0.03	970	0.03	-2.30
BIG-IP	975	0.03	979	0.03	-5.33
PowerSchool	968	0.03	963	0.03	-4.45
AnWeb	938	0.03	881	0.03	1.20
WebSitePro	842	0.02	858	0.03	-6.72
4D_WebSTAR_S	780	0.02	794	0.02	-6.62
cpsrvd	683	0.02	670	0.02	-3.10
AOLserver	675	0.02	638	0.02	0.57
WebtoB	649	0.02	628	0.02	-1.77
4D_WebStar_D	648	0.02	646	0.02	-4.65
ListManagerWeb	567	0.02	524	0.02	2.85
EdgePrism	554	0.02	300	0.01	75.53
Sun-Java-System-Web-Server	531	0.01	461	0.01	9.49
DeleGate	525	0.01	512	0.01	-2.53
httpd+ssl	524	0.01	545	0.02	-8.61
redir-httpd	513	0.01	509	0.01	-4.20
httpd	512	0.01	464	0.01	4.89
Stronghold	495	0.01	510	0.01	-7.74
Nost	489	0.01	335	0.01	38.75
SAMBAR	486	0.01	504	0.01	-8.34
ENIAC	476	0.01	470	0.01	-3.73
NetCache	461	0.01	401	0.01	9.28
Oracle9iAS	439	0.01	448	0.01	-6.86
gws	433	0.01	299	0.01	37.65
Abyss	423	0.01	410	0.01	-1.93
Roxen	409	0.01	399	0.01	-2.56
""	408	0.01	366	0.01	5.96
Blocked	404	0.01	395	0.01	-2.78
NetWare-Enterprise-Web-Server	376	0.01	416	0.01	-14.09
Orion	374	0.01	379	0.01	-6.20
WebSphere	363	0.01	360	0.01	-4.15
JRun	359	0.01	349	0.01	-2.22
Ultraseek	351	0.01	342	0.01	-2.45
Secured	319	0.01	281	0.01	7.91
IIS	308	0.01	281	0.01	4.19
Netscape-FastTrack	306	0.01	315	0.01	-7.66
Indy	304	0.01	294	0.01	-1.71
NCSA	289	0.01	310	0.01	-11.39
Server	284	0.01	220	0.01	22.71
Xitami	282	0.01	279	0.01	-3.92
IBM-HTTP-Server	281	0.01	287	0.01	-6.93
OSU	278	0.01	270	0.01	-2.13
Rumpus	274	0.01	253	0.01	2.94
Sun	264	0.01	220	0.01	14.06
Power	262	0.01	275	0.01	-9.44
Protected	249	0.01	0	0.00	N/A
DinaHTTPd	222	0.01	207	0.01	1.94
Jeus	221	0.01	224	0.01	-6.22
NS_6.1	220	0.01	226	0.01	-7.47
TimmiT	218	0.01	189	0.01	9.64
FJapache	218	0.01	200	0.01	3.61
Polaris	206	0.01	199	0.01	-1.60
Apache-NeoNova	196	0.01	201	0.01	-7.31
Hanbiro	194	0.01	184	0.01	0.22
Kerio	189	0.01	0	0.00	N/A
Fujitsu-InfoProvider-Pro	182	0.01	173	0.01	-0.00

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.