You are viewing an outdated report. The latest version of this report was published on January 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) 18,929,160 hostnames, but only 2,013,657 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 2016 Count	October 2016 %	September 2016 Count	September 2016 %	Growth %
Apache	1,019,964	50.65	2,489,335	48.63	4.17
nginx	351,983	17.48	779,455	15.23	14.81
Microsoft-IIS	298,689	14.83	789,547	15.42	-3.82
null	125,903	6.25	410,063	8.01	-21.94
Microsoft-HTTPAPI	70,930	3.52	198,102	3.87	-8.97
cloudflare-nginx	28,871	1.43	77,286	1.51	-5.03
IdeaWebServer	20,844	1.04	49,231	0.96	7.64
LiteSpeed	18,113	0.90	34,442	0.67	33.70
Apache-Coyote	9,413	0.47	53,663	1.05	-55.40
BigIP	5,446	0.27	19,836	0.39	-30.20
IIS	3,655	0.18	11,376	0.22	-18.32
Flywheel	3,585	0.18	5,727	0.11	59.15
lighttpd	3,419	0.17	10,390	0.20	-16.34
Safedog	2,630	0.13	6,944	0.14	-3.71
Tengine	2,613	0.13	6,805	0.13	-2.38
WWW	2,367	0.12	6,592	0.13	-8.71
openresty	2,180	0.11	3,595	0.07	54.17
Varnish	1,509	0.07	3,848	0.08	-0.30
wts	1,451	0.07	4,364	0.09	-15.47
squid	1,426	0.07	7,360	0.14	-50.74
AkamaiGHost	1,323	0.07	12,392	0.24	-72.86
AmazonS3	1,317	0.07	3,075	0.06	8.89
Lotus-Domino	1,292	0.06	5,726	0.11	-42.64
CloudFront	1,214	0.06	2,749	0.05	12.27
kangle	1,080	0.05	2,900	0.06	-5.32
Rapidsite	1,075	0.05	3,006	0.06	-9.08
A	929	0.05	6,497	0.13	-63.65
Cowboy	901	0.04	4,750	0.09	-51.78
YxlinkWAF	813	0.04	2,557	0.05	-19.17
GSYQ	739	0.04	1,672	0.03	12.37
Pantheon	633	0.03	1,444	0.03	11.45
-	632	0.03	1,547	0.03	3.86
EZproxy	624	0.03	2,651	0.05	-40.16
GSHD	575	0.03	1,872	0.04	-21.91
xServers	570	0.03	1,342	0.03	7.98
nginx-reuseport	480	0.02	1,565	0.03	-22.02
IBM_HTTP_Server	475	0.02	2,077	0.04	-41.86
Zope	465	0.02	1,872	0.04	-36.85
Protected	387	0.02	631	0.01	55.93
kisa	352	0.02	547	0.01	63.60
ws-httpd	342	0.02	650	0.01	33.77
Nginx-VPSSIM	321	0.02	564	0.01	44.70
Oracle-Application-Server-10g	309	0.02	1,271	0.02	-38.19
yunjiasu-nginx	300	0.01	351	0.01	117.29
Resin	291	0.01	2,052	0.04	-63.95
CHO	280	0.01	760	0.01	-6.33
ATS	266	0.01	778	0.02	-13.08
WebServer	260	0.01	637	0.01	3.77
GlassFish	260	0.01	1,159	0.02	-42.97
1	220	0.01	434	0.01	28.87
Web	207	0.01	784	0.02	-32.87
PWS	202	0.01	846	0.02	-39.30
sffe	184	0.01	3,058	0.06	-84.70
Oracle-Application-Server-11g	182	0.01	766	0.01	-39.59
Caddy	178	0.01	360	0.01	25.70
III	170	0.01	1,088	0.02	-60.28
Cherokee	163	0.01	406	0.01	2.07
NetBox	152	0.01	783	0.02	-50.65
Black	152	0.01	0	0.00	N/A
360wzws	152	0.01	292	0.01	32.34
QRATOR	151	0.01	400	0.01	-4.03
Zeus	142	0.01	433	0.01	-16.63
XiakeWeb	142	0.01	485	0.01	-25.56
ghs	135	0.01	320	0.01	7.26
Oracle-iPlanet-Web-Server	134	0.01	476	0.01	-28.43
Server	129	0.01	556	0.01	-41.01
WAF	128	0.01	587	0.01	-44.56
Sucuri	127	0.01	0	0.00	N/A
Sun-ONE-Web-Server	122	0.01	480	0.01	-35.38
Nginx	121	0.01	0	0.00	N/A
IceWarp	117	0.01	1,175	0.02	-74.68
Cougar	117	0.01	849	0.02	-64.96
gunicorn	115	0.01	348	0.01	-15.99
MageStack-MagentoOS	115	0.01	0	0.00	N/A
HTTPD-HR	112	0.01	0	0.00	N/A
Abyss	111	0.01	324	0.01	-12.90
Oracle	106	0.01	554	0.01	-51.36
Pepyaka	103	0.01	0	0.00	N/A
Icecast	103	0.01	604	0.01	-56.65
httpd	100	0.00	569	0.01	-55.32
Unknown	97	0.00	334	0.01	-26.17
Jetty(8.1.12.v20130726)	97	0.00	0	0.00	N/A
By	94	0.00	0	0.00	N/A
o2switch	92	0.00	0	0.00	N/A
Pagely	92	0.00	0	0.00	N/A
NOYB	92	0.00	0	0.00	N/A
WDaemon	91	0.00	1,371	0.03	-83.13
Jetty	90	0.00	322	0.01	-28.94
ScreenConnect	89	0.00	872	0.02	-74.05
Sun	87	0.00	476	0.01	-53.53
EdgePrism	86	0.00	677	0.01	-67.70
Werkzeug	83	0.00	0	0.00	N/A
TWebAP	83	0.00	557	0.01	-62.12
AliyunOSS	81	0.00	0	0.00	N/A
thttpd	80	0.00	604	0.01	-66.33
VWebServer	80	0.00	337	0.01	-39.65
WowzaStreamingEngine	78	0.00	445	0.01	-55.44
OpenBSD	78	0.00	0	0.00	N/A
Destiny	76	0.00	1,661	0.03	-88.37
WisePanel	75	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.