You are viewing an outdated report.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) 67,648,864 hostnames, but only 5,416,936 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	July 2013 Count	July 2013 %	June 2013 Count	June 2013 %	Growth %
Apache	3,125,886	57.71	3,105,595	57.85	-0.26
Microsoft-IIS	1,028,392	18.98	1,027,978	19.15	-0.86
null	440,586	8.13	437,594	8.15	-0.23
nginx	317,592	5.86	305,929	5.70	2.87
Microsoft-HTTPAPI	119,228	2.20	116,412	2.17	1.49
Apache-Coyote	57,189	1.06	57,068	1.06	-0.69
IdeaWebServer	50,869	0.94	50,108	0.93	0.60
LiteSpeed	27,535	0.51	27,730	0.52	-1.60
Rapidsite	24,961	0.46	25,736	0.48	-3.89
lighttpd	21,675	0.40	21,974	0.41	-2.25
IIS	19,649	0.36	9,626	0.18	102.28
A	12,392	0.23	12,560	0.23	-2.23
BigIP	11,241	0.21	11,000	0.20	1.27
Lotus-Domino	9,782	0.18	9,860	0.18	-1.69
squid	8,713	0.16	8,337	0.16	3.57
AkamaiGHost	8,435	0.16	6,367	0.12	31.28
IBM_HTTP_Server	6,340	0.12	6,422	0.12	-2.17
cloudflare-nginx	6,064	0.11	6,051	0.11	-0.69
HTTPD	3,748	0.07	3,882	0.07	-4.32
Zope	3,160	0.06	3,173	0.06	-1.31
Oracle-Application-Server-10g	3,096	0.06	3,129	0.06	-1.95
Resin	2,894	0.05	2,968	0.06	-3.37
-	2,417	0.04	2,000	0.04	19.76
EZproxy	2,222	0.04	2,186	0.04	0.73
Varnish	1,973	0.04	1,880	0.04	4.00
MochiWeb	1,909	0.04	1,774	0.03	6.64
Cougar	1,873	0.03	1,871	0.03	-0.80
WDaemon	1,755	0.03	1,777	0.03	-2.13
Tengine	1,730	0.03	1,660	0.03	3.28
Zeus	1,696	0.03	1,709	0.03	-1.66
Web	1,645	0.03	1,617	0.03	0.81
Sun-ONE-Web-Server	1,604	0.03	1,662	0.03	-4.36
xServers	1,562	0.03	1,533	0.03	0.97
IceWarp	1,497	0.03	1,507	0.03	-1.56
kangle	1,433	0.03	1,416	0.03	0.29
III	1,193	0.02	1,206	0.02	-1.97
Netscape-Enterprise	1,079	0.02	1,120	0.02	-4.53
thttpd	1,058	0.02	3,347	0.06	-68.68
GWS	1,031	0.02	1,056	0.02	-3.25
sffe	1,011	0.02	1,198	0.02	-16.37
Rumpus	982	0.02	976	0.02	-0.29
Cherokee	966	0.02	988	0.02	-3.11
WP	915	0.02	853	0.02	6.30
Boa	901	0.02	913	0.02	-2.21
cpsrvd	897	0.02	912	0.02	-2.53
GlassFish	883	0.02	875	0.02	0.00
FC	868	0.02	822	0.02	4.64
ApacheBooster	829	0.02	665	0.01	23.54
Oracle	803	0.01	860	0.02	-7.47
Bomgar	803	0.01	795	0.01	0.09
Sun-Java-System-Web-Server	792	0.01	796	0.01	-1.40
Apache-AdvancedExtranetServer	778	0.01	794	0.01	-2.90
Sun	775	0.01	761	0.01	0.92
CommuniGatePro	772	0.01	779	0.01	-1.79
httpd	751	0.01	767	0.01	-2.97
Oracle-Application-Server-11g	740	0.01	721	0.01	1.71
Jetty	693	0.01	695	0.01	-1.19
smartcds	681	0.01	618	0.01	9.20
WebServer	645	0.01	657	0.01	-2.71
WWW	621	0.01	625	0.01	-1.54
Server	576	0.01	578	0.01	-1.25
ASERVER	552	0.01	415	0.01	31.81
AnWeb	539	0.01	575	0.01	-7.11
CloudFront	523	0.01	489	0.01	5.99
redir-httpd	515	0.01	516	0.01	-1.10
NOYB	501	0.01	521	0.01	-4.71
FlashCom	486	0.01	476	0.01	1.18
Abyss	445	0.01	454	0.01	-2.87
WebtoB	444	0.01	427	0.01	3.04
Oracle-iPlanet-Web-Server	430	0.01	423	0.01	0.74
Demandware	419	0.01	411	0.01	1.03
WebServerX	417	0.01	429	0.01	-3.68
EdgePrism	400	0.01	449	0.01	-11.72
Ipswitch-IMail	397	0.01	407	0.01	-3.34
ListManagerWeb	395	0.01	409	0.01	-4.30
HTTP	392	0.01	386	0.01	0.64
*****************	388	0.01	377	0.01	1.99
Unknown	386	0.01	380	0.01	0.66
PWS	385	0.01	351	0.01	8.70
maged	383	0.01	319	0.01	18.98
SAP	372	0.01	366	0.01	0.72
IBM_HTTP_SERVER	367	0.01	379	0.01	-4.04
ngx_openresty	365	0.01	352	0.01	2.76
FileMakerPro	356	0.01	366	0.01	-3.61
WebSphere	350	0.01	363	0.01	-4.45
AmazonS3	347	0.01	347	0.01	-0.90
AOLserver	344	0.01	366	0.01	-6.86
SonicWALL	342	0.01	336	0.01	0.87
DinaHTTPd	341	0.01	360	0.01	-6.13
kisa	340	0.01	316	0.01	6.62
Google	336	0.01	315	0.01	5.70
WS	335	0.01	330	0.01	0.60
ATS	319	0.01	0	0.00	N/A
4D_WebStar_D	319	0.01	339	0.01	-6.75
OpenCms	304	0.01	299	0.01	0.75
Indy	303	0.01	301	0.01	-0.25
WebSTAR	285	0.01	304	0.01	-7.10
WebLogic	282	0.01	296	0.01	-5.59
TWebAP	277	0.01	270	0.01	1.67
Roxen	275	0.01	275	0.01	-0.90

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.