You are viewing an outdated report.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) 72,545,612 hostnames, but only 5,584,922 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	March 2016 Count	March 2016 %	February 2016 Count	February 2016 %	Growth %
Apache	2,872,330	51.43	2,961,642	52.41	-1.86
Microsoft-IIS	867,110	15.53	889,469	15.74	-1.36
nginx	761,728	13.64	706,464	12.50	9.10
null	411,431	7.37	419,165	7.42	-0.68
Microsoft-HTTPAPI	199,289	3.57	200,432	3.55	0.61
cloudflare-nginx	71,538	1.28	69,841	1.24	3.65
Apache-Coyote	61,081	1.09	61,766	1.09	0.06
IdeaWebServer	53,979	0.97	54,128	0.96	0.91
LiteSpeed	34,858	0.62	35,415	0.63	-0.41
BigIP	19,715	0.35	19,740	0.35	1.06
IIS	17,785	0.32	17,857	0.32	0.78
lighttpd	13,887	0.25	14,636	0.26	-3.99
AkamaiGHost	11,517	0.21	11,182	0.20	4.22
squid	10,357	0.19	10,884	0.19	-3.71
A	8,887	0.16	9,034	0.16	-0.46
Tengine	7,092	0.13	7,137	0.13	0.55
Lotus-Domino	6,704	0.12	6,790	0.12	-0.10
WWW	6,378	0.11	5,976	0.11	7.99
Rapidsite	6,133	0.11	6,244	0.11	-0.61
Cowboy	5,589	0.10	5,586	0.10	1.24
Safedog	5,104	0.09	5,087	0.09	1.52
Flywheel	4,656	0.08	4,534	0.08	3.91
sffe	4,453	0.08	4,596	0.08	-1.96
Varnish	3,900	0.07	3,907	0.07	1.01
kangle	3,444	0.06	3,306	0.06	5.41
GSHD	3,303	0.06	4,031	0.07	-17.09
AmazonS3	2,786	0.05	2,781	0.05	1.37
openresty	2,767	0.05	2,707	0.05	3.43
IBM_HTTP_Server	2,632	0.05	2,746	0.05	-3.01
EZproxy	2,609	0.05	2,637	0.05	0.11
CloudFront	2,537	0.05	2,189	0.04	17.27
Resin	2,334	0.04	2,379	0.04	-0.73
Zope	2,149	0.04	2,185	0.04	-0.48
-	2,006	0.04	2,138	0.04	-5.06
Oracle-Application-Server-10g	1,565	0.03	1,611	0.03	-1.70
WDaemon	1,494	0.03	1,503	0.03	0.58
xServers	1,449	0.03	1,446	0.03	1.40
GlassFish	1,287	0.02	1,306	0.02	-0.29
IceWarp	1,249	0.02	1,266	0.02	-0.17
Pantheon	1,151	0.02	1,121	0.02	3.89
III	1,107	0.02	1,112	0.02	0.73
Web	1,063	0.02	1,069	0.02	0.62
Cougar	974	0.02	984	0.02	0.16
Rumpus	952	0.02	952	0.02	1.19
Oracle-Application-Server-11g	858	0.02	875	0.02	-0.78
YxlinkWAF	835	0.01	814	0.01	3.80
CHO	833	0.01	831	0.01	1.43
Bomgar	813	0.01	816	0.01	0.81
NetBox	807	0.01	834	0.01	-2.09
ScreenConnect	801	0.01	808	0.01	0.31
Sun-ONE-Web-Server	753	0.01	767	0.01	-0.66
ATS	717	0.01	694	0.01	4.54
thttpd	701	0.01	716	0.01	-0.93
WebServer	699	0.01	708	0.01	-0.10
PWS	681	0.01	637	0.01	8.18
*****************	639	0.01	616	0.01	4.96
httpd	635	0.01	654	0.01	-1.75
Boa	615	0.01	647	0.01	-3.82
Oracle	609	0.01	617	0.01	-0.13
EdgePrism	605	0.01	603	0.01	1.52
Black	581	0.01	0	0.00	N/A
ws-httpd	578	0.01	0	0.00	N/A
CommuniGatePro	561	0.01	579	0.01	-1.96
Sun	558	0.01	569	0.01	-0.77
Zeus	553	0.01	594	0.01	-5.80
kisa	536	0.01	529	0.01	2.53
Protected	520	0.01	462	0.01	13.89
Icecast	509	0.01	509	0.01	1.19
redir-httpd	505	0.01	506	0.01	0.99
XiakeWeb	484	0.01	626	0.01	-21.77
Cherokee	481	0.01	501	0.01	-2.85
Server	466	0.01	461	0.01	2.28
wts	464	0.01	0	0.00	N/A
SonicWALL	454	0.01	463	0.01	-0.78
Nginx-VPSSIM	448	0.01	460	0.01	-1.45
Oracle-iPlanet-Web-Server	445	0.01	452	0.01	-0.38
TWebAP	439	0.01	432	0.01	2.83
WowzaStreamingEngine	437	0.01	432	0.01	2.36
Netscape-Enterprise	423	0.01	432	0.01	-0.92
yunjiasu-nginx	418	0.01	339	0.01	24.77
Apache-AdvancedExtranetServer	412	0.01	415	0.01	0.45
Google	411	0.01	414	0.01	0.45
QRATOR	378	0.01	384	0.01	-0.39
Unknown	377	0.01	380	0.01	0.39
GWS	374	0.01	385	0.01	-1.70
Abyss	373	0.01	377	0.01	0.11
gunicorn	372	0.01	376	0.01	0.11
cc-web	338	0.01	349	0.01	-2.00
ngx_openresty	337	0.01	348	0.01	-2.01
Jetty	337	0.01	350	0.01	-2.57
ghs	334	0.01	333	0.01	1.49
SAP	329	0.01	326	0.01	2.12
NginxPlus	327	0.01	291	0.01	13.70
cpsrvd	323	0.01	500	0.01	-34.63
FlashCom	319	0.01	345	0.01	-6.44
WS	317	0.01	324	0.01	-1.00
OpenCms	308	0.01	303	0.01	2.86
unknown	285	0.01	290	0.01	-0.56
Sun-Java-System-Web-Server	285	0.01	295	0.01	-2.24
Footprint	275	0.00	299	0.01	-6.94

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.