You are viewing an outdated report.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) 68,880,873 hostnames, but only 5,155,676 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	November 2016 Count	November 2016 %	October 2016 Count	October 2016 %	Growth %
Apache	2,491,664	48.33	1,019,964	50.65	-4.59
Microsoft-IIS	830,403	16.11	298,689	14.83	8.58
nginx	804,747	15.61	351,983	17.48	-10.70
null	371,988	7.22	125,903	6.25	15.40
Microsoft-HTTPAPI	203,778	3.95	70,930	3.52	12.21
cloudflare-nginx	80,093	1.55	28,871	1.43	8.35
Apache-Coyote	53,391	1.04	9,413	0.47	121.53
IdeaWebServer	49,282	0.96	20,844	1.04	-7.66
LiteSpeed	35,196	0.68	18,113	0.90	-24.11
BigIP	20,347	0.39	5,446	0.27	45.92
AkamaiGHost	12,413	0.24	1,323	0.07	266.45
IIS	10,045	0.19	3,655	0.18	7.34
lighttpd	9,814	0.19	3,419	0.17	12.11
WWW	7,488	0.15	2,367	0.12	23.56
Tengine	6,887	0.13	2,613	0.13	2.94
squid	6,671	0.13	1,426	0.07	82.71
A	6,335	0.12	929	0.05	166.34
Flywheel	6,201	0.12	3,585	0.18	-32.44
Safedog	5,995	0.12	2,630	0.13	-10.97
Lotus-Domino	5,638	0.11	1,292	0.06	70.44
Cowboy	4,507	0.09	901	0.04	95.37
openresty	4,496	0.09	2,180	0.11	-19.45
wts	4,106	0.08	1,451	0.07	10.52
Varnish	4,050	0.08	1,509	0.07	4.83
sffe	3,088	0.06	184	0.01	555.48
AmazonS3	2,895	0.06	1,317	0.07	-14.15
kangle	2,884	0.06	1,080	0.05	4.30
EZproxy	2,658	0.05	624	0.03	66.37
YxlinkWAF	2,622	0.05	813	0.04	25.96
GSYQ	2,410	0.05	739	0.04	27.37
Rapidsite	2,291	0.04	1,075	0.05	-16.76
CloudFront	2,268	0.04	1,214	0.06	-27.03
Resin	1,987	0.04	291	0.01	166.69
IBM_HTTP_Server	1,948	0.04	475	0.02	60.18
Zope	1,813	0.04	465	0.02	52.28
Destiny	1,692	0.03	76	0.00	769.53
nginx-reuseport	1,689	0.03	480	0.02	37.43
Pantheon	1,533	0.03	633	0.03	-5.41
-	1,500	0.03	632	0.03	-7.30
xServers	1,383	0.03	570	0.03	-5.24
WDaemon	1,350	0.03	91	0.00	479.42
GSHD	1,253	0.02	575	0.03	-14.89
Oracle-Application-Server-10g	1,209	0.02	309	0.02	52.82
IceWarp	1,173	0.02	117	0.01	291.57
GlassFish	1,140	0.02	260	0.01	71.25
III	1,078	0.02	170	0.01	147.67
ScreenConnect	876	0.02	89	0.00	284.43
Rumpus	858	0.02	0	0.00	N/A
ATS	858	0.02	266	0.01	25.98
Cougar	814	0.02	117	0.01	171.73
Bomgar	791	0.02	0	0.00	N/A
CHO	775	0.02	280	0.01	8.10
Oracle-Application-Server-11g	751	0.01	182	0.01	61.16
Web	748	0.01	207	0.01	41.13
ws-httpd	744	0.01	342	0.02	-15.03
PWS	731	0.01	202	0.01	41.34
Protected	724	0.01	387	0.02	-26.93
WebServer	633	0.01	260	0.01	-4.91
Icecast	618	0.01	103	0.01	134.34
Server	589	0.01	129	0.01	78.33
thttpd	588	0.01	80	0.00	187.07
*****************	571	0.01	0	0.00	N/A
YUNDUN	558	0.01	0	0.00	N/A
kisa	549	0.01	352	0.02	-39.08
CommuniGatePro	544	0.01	0	0.00	N/A
Oracle	535	0.01	106	0.01	97.13
httpd	534	0.01	100	0.00	108.56
TWebAP	531	0.01	83	0.00	149.87
Boa	519	0.01	0	0.00	N/A
redir-httpd	496	0.01	0	0.00	N/A
Nginx-VPSSIM	481	0.01	321	0.02	-41.48
Sun	474	0.01	87	0.00	112.79
EdgePrism	464	0.01	86	0.00	110.73
Caddy	463	0.01	178	0.01	1.59
WowzaStreamingEngine	453	0.01	78	0.00	126.83
Oracle-iPlanet-Web-Server	451	0.01	134	0.01	31.45
Sun-ONE-Web-Server	445	0.01	122	0.01	42.46
1	425	0.01	220	0.01	-24.55
Zeus	419	0.01	142	0.01	15.25
NetBox	415	0.01	152	0.01	6.64
SonicWALL	406	0.01	0	0.00	N/A
QRATOR	396	0.01	151	0.01	2.43
VWebServer	391	0.01	80	0.00	90.89
Google	387	0.01	0	0.00	N/A
XiakeWeb	383	0.01	142	0.01	5.34
Cherokee	376	0.01	163	0.01	-9.91
Footprint	373	0.01	0	0.00	N/A
cc-web	353	0.01	0	0.00	N/A
Nginx	351	0.01	121	0.01	13.30
gunicorn	347	0.01	115	0.01	17.85
Unknown	345	0.01	97	0.00	38.91
yunjiasu-nginx	339	0.01	300	0.01	-55.87
Abyss	323	0.01	111	0.01	13.65
ghs	322	0.01	135	0.01	-6.84
SAP	300	0.01	0	0.00	N/A
Netscape-Enterprise	293	0.01	0	0.00	N/A
Black	288	0.01	152	0.01	-26.00
NginxPlus	285	0.01	0	0.00	N/A
Werkzeug	283	0.01	83	0.00	33.17
WildFly	280	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.