You are viewing an outdated report.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) 72,502,578 hostnames, but only 5,624,377 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	April 2014 Count	April 2014 %	March 2014 Count	March 2014 %	Growth %
Apache	3,128,287	55.62	3,136,586	55.87	-0.45
Microsoft-IIS	1,032,901	18.36	1,033,992	18.42	-0.30
null	456,995	8.13	453,231	8.07	0.64
nginx	449,211	7.99	437,351	7.79	2.52
Microsoft-HTTPAPI	143,057	2.54	139,699	2.49	2.21
Apache-Coyote	61,695	1.10	60,998	1.09	0.95
IdeaWebServer	55,158	0.98	55,010	0.98	0.08
IIS	35,540	0.63	34,292	0.61	3.44
LiteSpeed	30,677	0.55	30,624	0.55	-0.02
Rapidsite	18,737	0.33	19,589	0.35	-4.53
lighttpd	18,534	0.33	20,561	0.37	-10.03
BigIP	13,492	0.24	13,218	0.24	1.88
A	11,363	0.20	11,527	0.21	-1.61
squid	10,661	0.19	10,052	0.18	5.86
Lotus-Domino	9,019	0.16	9,118	0.16	-1.27
cloudflare-nginx	8,658	0.15	8,810	0.16	-1.91
AkamaiGHost	5,460	0.10	5,291	0.09	3.00
IBM_HTTP_Server	5,333	0.09	5,420	0.10	-1.79
HTTPD	4,714	0.08	4,631	0.08	1.60
MochiWeb	3,350	0.06	3,208	0.06	4.23
Zope	2,898	0.05	2,933	0.05	-1.38
Resin	2,803	0.05	2,805	0.05	-0.26
Tengine	2,778	0.05	2,662	0.05	4.16
Oracle-Application-Server-10g	2,757	0.05	2,793	0.05	-1.48
Varnish	2,483	0.04	2,456	0.04	0.91
EZproxy	2,411	0.04	2,376	0.04	1.28
kangle	2,386	0.04	2,039	0.04	16.80
-	2,341	0.04	2,294	0.04	1.85
WP	1,934	0.03	1,807	0.03	6.82
WDaemon	1,771	0.03	1,773	0.03	-0.30
Cougar	1,690	0.03	1,682	0.03	0.28
Web	1,528	0.03	1,550	0.03	-1.61
xServers	1,430	0.03	1,442	0.03	-1.02
IceWarp	1,416	0.03	1,442	0.03	-1.99
Zeus	1,378	0.02	1,449	0.03	-5.08
Sun-ONE-Web-Server	1,306	0.02	1,363	0.02	-4.36
III	1,204	0.02	1,197	0.02	0.39
GlassFish	1,090	0.02	1,083	0.02	0.46
Rumpus	1,038	0.02	1,026	0.02	0.98
AmazonS3	994	0.02	725	0.01	36.84
openresty	991	0.02	910	0.02	8.69
thttpd	976	0.02	978	0.02	-0.39
sffe	941	0.02	907	0.02	3.55
FC	931	0.02	982	0.02	-5.37
cpsrvd	925	0.02	925	0.02	-0.19
Oracle-Application-Server-11g	888	0.02	876	0.02	1.18
Boa	876	0.02	898	0.02	-2.64
Bomgar	868	0.02	839	0.01	3.26
Cherokee	857	0.02	869	0.02	-1.57
Netscape-Enterprise	820	0.01	838	0.01	-2.33
smartcds	802	0.01	745	0.01	7.45
GWS	802	0.01	834	0.01	-4.02
Sun	779	0.01	789	0.01	-1.46
Flywheel	754	0.01	638	0.01	17.96
Oracle	750	0.01	746	0.01	0.35
httpd	746	0.01	759	0.01	-1.90
CommuniGatePro	727	0.01	723	0.01	0.36
EdgePrism	721	0.01	710	0.01	1.36
Safedog	691	0.01	528	0.01	30.62
WebServer	689	0.01	688	0.01	-0.04
Apache-AdvancedExtranetServer	643	0.01	656	0.01	-2.17
Sun-Java-System-Web-Server	635	0.01	675	0.01	-6.10
ngx_openresty	612	0.01	877	0.02	-30.35
FlashCom	612	0.01	608	0.01	0.47
WWW	597	0.01	597	0.01	-0.19
*****************	577	0.01	565	0.01	1.93
Jetty	548	0.01	549	0.01	-0.37
Demandware	544	0.01	521	0.01	4.22
PWS	521	0.01	482	0.01	7.89
redir-httpd	513	0.01	513	0.01	-0.19
Oracle-iPlanet-Web-Server	465	0.01	446	0.01	4.06
NOYB	462	0.01	455	0.01	1.35
CloudFront	455	0.01	488	0.01	-6.94
AnWeb	444	0.01	457	0.01	-3.03
Abyss	438	0.01	441	0.01	-0.87
maged	436	0.01	421	0.01	3.37
SonicWALL	428	0.01	414	0.01	3.19
Server	418	0.01	411	0.01	1.51
Google	413	0.01	406	0.01	1.53
WebtoB	406	0.01	422	0.01	-3.97
kisa	401	0.01	393	0.01	1.84
HTTP	387	0.01	392	0.01	-1.46
SAP	385	0.01	384	0.01	0.07
ASERVER	380	0.01	354	0.01	7.14
WebServerX	375	0.01	387	0.01	-3.28
ScreenConnect	375	0.01	349	0.01	7.25
ATS	359	0.01	323	0.01	10.93
WS	354	0.01	358	0.01	-1.31
Ipswitch-IMail	350	0.01	360	0.01	-2.96
ApacheBooster	341	0.01	444	0.01	-23.34
TWebAP	338	0.01	320	0.01	5.42
OpenCms	332	0.01	320	0.01	3.55
WebSphere	325	0.01	335	0.01	-3.17
gunicorn	314	0.01	305	0.01	2.76
ListManagerWeb	313	0.01	320	0.01	-2.37
FileMakerPro	308	0.01	314	0.01	-2.10
AOLserver	306	0.01	318	0.01	-3.96
Indy	299	0.01	288	0.01	3.62
IBM_HTTP_SERVER	296	0.01	311	0.01	-5.00
Pantheon	288	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.