You are viewing an outdated report.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) 69,692,155 hostnames, but only 5,523,861 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	October 2013 Count	October 2013 %	September 2013 Count	September 2013 %	Growth %
Apache	3,170,004	57.39	3,158,678	57.62	-0.40
Microsoft-IIS	1,035,696	18.75	1,026,496	18.72	0.13
null	438,423	7.94	434,204	7.92	0.21
nginx	346,844	6.28	336,143	6.13	2.40
Microsoft-HTTPAPI	127,727	2.31	125,392	2.29	1.09
Apache-Coyote	59,495	1.08	58,403	1.07	1.10
IdeaWebServer	52,627	0.95	51,851	0.95	0.73
IIS	31,677	0.57	32,155	0.59	-2.23
LiteSpeed	28,332	0.51	27,767	0.51	1.26
Rapidsite	23,463	0.42	23,883	0.44	-2.50
lighttpd	20,971	0.38	21,295	0.39	-2.26
BigIP	12,034	0.22	11,819	0.22	1.05
A	12,026	0.22	12,168	0.22	-1.91
Lotus-Domino	9,583	0.17	9,642	0.18	-1.36
squid	9,385	0.17	9,186	0.17	1.40
AkamaiGHost	7,547	0.14	6,777	0.12	10.52
cloudflare-nginx	6,565	0.12	6,405	0.12	1.72
IBM_HTTP_Server	6,058	0.11	6,138	0.11	-2.05
HTTPD	4,173	0.08	4,100	0.07	1.01
Zope	3,085	0.06	3,086	0.06	-0.79
Oracle-Application-Server-10g	2,977	0.05	3,015	0.05	-2.01
Resin	2,882	0.05	2,866	0.05	-0.20
Varnish	2,401	0.04	2,133	0.04	11.71
MochiWeb	2,385	0.04	2,194	0.04	7.88
EZproxy	2,280	0.04	2,260	0.04	0.12
-	2,259	0.04	2,212	0.04	1.35
Tengine	1,894	0.03	2,005	0.04	-6.25
Cougar	1,793	0.03	1,808	0.03	-1.58
WDaemon	1,780	0.03	1,751	0.03	0.89
kangle	1,761	0.03	1,629	0.03	7.29
Web	1,626	0.03	1,665	0.03	-3.08
Zeus	1,623	0.03	1,660	0.03	-2.97
xServers	1,579	0.03	1,569	0.03	-0.12
Sun-ONE-Web-Server	1,524	0.03	1,545	0.03	-2.10
IceWarp	1,481	0.03	1,488	0.03	-1.22
ngx_openresty	1,403	0.03	1,108	0.02	25.67
ApacheBooster	1,208	0.02	876	0.02	36.86
III	1,184	0.02	1,188	0.02	-1.09
WP	1,099	0.02	1,038	0.02	5.08
sffe	1,027	0.02	935	0.02	9.01
Rumpus	1,012	0.02	992	0.02	1.25
thttpd	995	0.02	1,001	0.02	-1.35
Netscape-Enterprise	994	0.02	1,032	0.02	-4.41
GWS	962	0.02	976	0.02	-2.18
GlassFish	958	0.02	932	0.02	2.01
Cherokee	943	0.02	942	0.02	-0.65
Boa	918	0.02	903	0.02	0.89
cpsrvd	901	0.02	897	0.02	-0.31
FC	857	0.02	874	0.02	-2.69
Bomgar	826	0.01	825	0.02	-0.63
CloudFront	807	0.01	616	0.01	30.02
Oracle-Application-Server-11g	793	0.01	769	0.01	2.34
Sun	772	0.01	770	0.01	-0.50
Oracle	759	0.01	784	0.01	-3.92
Sun-Java-System-Web-Server	751	0.01	759	0.01	-1.80
CommuniGatePro	749	0.01	748	0.01	-0.62
Safedog	746	0.01	676	0.01	9.52
httpd	736	0.01	735	0.01	-0.62
Apache-AdvancedExtranetServer	725	0.01	740	0.01	-2.77
smartcds	696	0.01	691	0.01	-0.04
WebServer	651	0.01	662	0.01	-2.40
WWW	631	0.01	629	0.01	-0.44
Jetty	622	0.01	630	0.01	-2.02
EdgePrism	604	0.01	664	0.01	-9.72
ASERVER	577	0.01	758	0.01	-24.45
Server	572	0.01	573	0.01	-0.93
redir-httpd	514	0.01	513	0.01	-0.56
FlashCom	510	0.01	504	0.01	0.43
AnWeb	493	0.01	500	0.01	-2.14
NOYB	484	0.01	485	0.01	-0.96
AmazonS3	477	0.01	432	0.01	9.58
Demandware	461	0.01	440	0.01	3.98
Oracle-iPlanet-Web-Server	454	0.01	451	0.01	-0.09
Abyss	436	0.01	436	0.01	-0.75
WebtoB	435	0.01	444	0.01	-2.77
PWS	435	0.01	447	0.01	-3.42
WebServerX	412	0.01	415	0.01	-1.47
HTTP	402	0.01	393	0.01	1.52
Unknown	392	0.01	383	0.01	1.58
*****************	388	0.01	405	0.01	-4.92
Ipswitch-IMail	386	0.01	382	0.01	0.28
SonicWALL	377	0.01	355	0.01	5.40
SAP	371	0.01	373	0.01	-1.29
Google	366	0.01	363	0.01	0.07
maged	365	0.01	348	0.01	4.09
ListManagerWeb	361	0.01	368	0.01	-2.64
kisa	358	0.01	354	0.01	0.37
WebSphere	353	0.01	354	0.01	-1.04
IBM_HTTP_SERVER	344	0.01	348	0.01	-1.90
WS	339	0.01	331	0.01	1.64
FileMakerPro	338	0.01	347	0.01	-3.33
AOLserver	335	0.01	337	0.01	-1.34
OpenCms	312	0.01	319	0.01	-2.93
Indy	311	0.01	297	0.01	3.92
DinaHTTPd	304	0.01	317	0.01	-4.82
4D_WebStar_D	304	0.01	309	0.01	-2.36
RomPager	281	0.01	313	0.01	-10.90
Footprint	278	0.01	0	0.00	N/A
WebSTAR	275	0.00	276	0.01	-1.11
TWebAP	272	0.00	277	0.01	-2.55

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.