You are viewing an outdated report. The latest version of this report was published on April 1st, 2025

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) 45,861,196 hostnames, but only 4,106,607 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	June 2010 Count	June 2010 %	May 2010 Count	May 2010 %	Growth %
Apache	2,410,948	58.71	2,388,831	58.67	0.07
Microsoft-IIS	988,420	24.07	986,297	24.22	-0.64
null	310,170	7.55	307,520	7.55	0.00
nginx	68,541	1.67	64,878	1.59	4.75
Rapidsite	52,777	1.29	53,323	1.31	-1.87
Apache-Coyote	37,529	0.91	36,887	0.91	0.87
IdeaWebServer	30,242	0.74	29,648	0.73	1.14
Microsoft-HTTPAPI	23,380	0.57	21,561	0.53	7.51
lighttpd	19,780	0.48	19,294	0.47	1.65
A	17,564	0.43	17,610	0.43	-1.11
Lotus-Domino	12,054	0.29	12,130	0.30	-1.47
LiteSpeed	8,310	0.20	7,846	0.19	5.01
IBM_HTTP_Server	6,471	0.16	6,418	0.16	-0.03
BigIP	4,421	0.11	4,316	0.11	1.56
squid	4,371	0.11	4,416	0.11	-1.86
Zope	4,247	0.10	4,302	0.11	-2.12
Oracle-Application-Server-10g	4,050	0.10	4,047	0.10	-0.78
Resin	3,408	0.08	3,417	0.08	-1.11
Netscape-Enterprise	3,371	0.08	3,446	0.08	-3.01
AkamaiGHost	3,199	0.08	2,103	0.05	50.82
Sun-ONE-Web-Server	3,151	0.08	3,222	0.08	-3.04
Zeus	3,052	0.07	3,141	0.08	-3.66
Cougar	2,399	0.06	2,392	0.06	-0.56
Apache-AdvancedExtranetServer	1,785	0.04	1,856	0.05	-4.64
GWS	1,767	0.04	1,780	0.04	-1.58
WDaemon	1,643	0.04	1,635	0.04	-0.37
WebServerX	1,594	0.04	1,544	0.04	2.36
IceWarp	1,571	0.04	1,572	0.04	-0.91
EZproxy	1,460	0.04	1,446	0.04	0.11
NOYB	1,381	0.03	1,367	0.03	0.16
Jetty	1,364	0.03	1,345	0.03	0.55
PowerSchool	1,317	0.03	1,297	0.03	0.68
Sun-Java-System-Web-Server	1,204	0.03	1,188	0.03	0.48
apache	1,180	0.03	1,125	0.03	4.00
WWW	1,157	0.03	1,222	0.03	-6.12
Oracle	1,147	0.03	1,159	0.03	-1.88
III	1,147	0.03	1,141	0.03	-0.33
Web	1,144	0.03	1,164	0.03	-2.55
Boa	1,114	0.03	1,135	0.03	-2.69
thttpd	1,077	0.03	1,093	0.03	-2.30
IBM_HTTP_SERVER	1,037	0.03	1,058	0.03	-2.82
HTTPD	1,032	0.03	971	0.02	5.38
CommuniGatePro	943	0.02	944	0.02	-0.96
Ipswitch-IMail	935	0.02	964	0.02	-3.83
AnWeb	898	0.02	935	0.02	-4.77
httpd	837	0.02	836	0.02	-0.73
cpsrvd	811	0.02	810	0.02	-0.73
WebSTAR	745	0.02	770	0.02	-4.07
Sun	735	0.02	700	0.02	4.11
ListManagerWeb	724	0.02	710	0.02	1.10
FileMakerPro	686	0.02	707	0.02	-3.80
4D_WebStar_D	662	0.02	681	0.02	-3.62
WebtoB	652	0.02	639	0.02	1.17
sffe	647	0.02	658	0.02	-2.51
TimmiT	620	0.02	435	0.01	41.32
WebLogic	591	0.01	762	0.02	-23.10
BIG-IP	561	0.01	584	0.01	-4.76
WebSite	537	0.01	548	0.01	-2.84
Rumpus	525	0.01	503	0.01	3.49
AOLserver	518	0.01	518	0.01	-0.85
redir-httpd	515	0.01	514	0.01	-0.66
Cherokee	512	0.01	479	0.01	5.98
Secured	493	0.01	459	0.01	6.49
DeleGate	489	0.01	486	0.01	-0.24
WebSitePro	483	0.01	476	0.01	0.61
JRun	446	0.01	438	0.01	0.96
Windows	438	0.01	527	0.01	-17.60
4D_WebSTAR_S	422	0.01	434	0.01	-3.59
EdgePrism	414	0.01	387	0.01	6.07
Abyss	414	0.01	432	0.01	-4.98
WebServer	396	0.01	393	0.01	-0.09
Power	383	0.01	385	0.01	-1.37
WebSphere	376	0.01	377	0.01	-1.11
""	363	0.01	357	0.01	0.82
Bomgar	358	0.01	341	0.01	4.09
Server	356	0.01	341	0.01	3.51
SAMBAR	356	0.01	350	0.01	0.85
Roxen	349	0.01	357	0.01	-3.07
ThirdSphere	345	0.01	354	0.01	-3.37
Indy	329	0.01	320	0.01	1.94
Varnish	315	0.01	309	0.01	1.07
Stronghold	312	0.01	316	0.01	-2.11
NetCache	309	0.01	310	0.01	-1.17
ENIAC	289	0.01	291	0.01	-1.53
Orion	275	0.01	286	0.01	-4.66
SAP	274	0.01	272	0.01	-0.12
IIS	272	0.01	267	0.01	1.01
Ultraseek	262	0.01	266	0.01	-2.34
SW	256	0.01	255	0.01	-0.46
FC	255	0.01	229	0.01	10.41
CloudFront	249	0.01	242	0.01	2.02
Kerio	245	0.01	244	0.01	-0.44
Oracle9iAS	242	0.01	257	0.01	-6.64
httpd+ssl	227	0.01	228	0.01	-1.29
CoralWebPrx	227	0.01	236	0.01	-4.63
Xitami	219	0.01	219	0.01	-0.85
Hanbiro	218	0.01	216	0.01	0.07
OSU	213	0.01	214	0.01	-1.31
VB	205	0.00	216	0.01	-5.90
BarracudaHTTP	200	0.00	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.