You are viewing an outdated report.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) 72,783,810 hostnames, but only 5,221,173 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	December 2016 Count	December 2016 %	November 2016 Count	November 2016 %	Growth %
Apache	2,507,817	48.03	2,491,664	48.33	-0.61
Microsoft-IIS	843,337	16.15	830,403	16.11	0.28
nginx	822,415	15.75	804,747	15.61	0.91
null	375,682	7.20	371,988	7.22	-0.27
Microsoft-HTTPAPI	205,685	3.94	203,778	3.95	-0.33
cloudflare-nginx	81,794	1.57	80,093	1.55	0.84
Apache-Coyote	54,641	1.05	53,391	1.04	1.06
IdeaWebServer	49,683	0.95	49,282	0.96	-0.45
LiteSpeed	36,039	0.69	35,196	0.68	1.11
BigIP	20,834	0.40	20,347	0.39	1.11
openresty	13,920	0.27	4,496	0.09	205.72
AkamaiGHost	12,549	0.24	12,413	0.24	-0.17
lighttpd	9,584	0.18	9,814	0.19	-3.57
WWW	8,218	0.16	7,488	0.15	8.37
IIS	7,943	0.15	10,045	0.19	-21.92
Tengine	7,243	0.14	6,887	0.13	3.85
squid	6,765	0.13	6,671	0.13	0.14
Flywheel	6,564	0.13	6,201	0.12	4.53
A	6,226	0.12	6,335	0.12	-2.95
Safedog	5,963	0.11	5,995	0.12	-1.78
Lotus-Domino	5,582	0.11	5,638	0.11	-2.24
wts	5,163	0.10	4,106	0.08	24.17
Cowboy	4,507	0.09	4,507	0.09	-1.25
Varnish	4,185	0.08	4,050	0.08	2.04
sffe	3,273	0.06	3,088	0.06	4.66
AmazonS3	3,166	0.06	2,895	0.06	7.99
kangle	3,097	0.06	2,884	0.06	6.04
CloudFront	2,909	0.06	2,268	0.04	26.65
GSYQ	2,747	0.05	2,410	0.05	12.55
EZproxy	2,680	0.05	2,658	0.05	-0.44
Resin	2,009	0.04	1,987	0.04	-0.16
IBM_HTTP_Server	1,925	0.04	1,948	0.04	-2.42
Zope	1,792	0.03	1,813	0.04	-2.40
nginx-reuseport	1,791	0.03	1,689	0.03	4.71
Destiny	1,677	0.03	1,692	0.03	-2.13
Pantheon	1,612	0.03	1,533	0.03	3.83
-	1,507	0.03	1,500	0.03	-0.79
xServers	1,416	0.03	1,383	0.03	1.10
Rapidsite	1,333	0.03	2,291	0.04	-42.55
WDaemon	1,331	0.03	1,350	0.03	-2.64
YxlinkWAF	1,282	0.02	2,622	0.05	-51.72
Oracle-Application-Server-10g	1,178	0.02	1,209	0.02	-3.79
IceWarp	1,154	0.02	1,173	0.02	-2.85
GlassFish	1,149	0.02	1,140	0.02	-0.47
III	1,069	0.02	1,078	0.02	-2.08
ScreenConnect	891	0.02	876	0.02	0.44
Rumpus	833	0.02	858	0.02	-4.13
ATS	812	0.02	858	0.02	-6.55
Cougar	800	0.02	814	0.02	-2.95
CHO	781	0.01	775	0.02	-0.49
Bomgar	781	0.01	791	0.02	-2.50
ws-httpd	778	0.01	744	0.01	3.26
GSHD	766	0.01	1,253	0.02	-39.63
Web	732	0.01	748	0.01	-3.37
Oracle-Application-Server-11g	731	0.01	751	0.01	-3.88
PWS	725	0.01	731	0.01	-2.06
Icecast	652	0.01	618	0.01	4.18
WebServer	616	0.01	633	0.01	-3.91
*****************	599	0.01	571	0.01	3.59
thttpd	589	0.01	588	0.01	-1.09
Protected	585	0.01	724	0.01	-20.21
Server	566	0.01	589	0.01	-5.11
TWebAP	549	0.01	531	0.01	2.09
kisa	543	0.01	549	0.01	-2.33
Oracle	530	0.01	535	0.01	-2.18
CommuniGatePro	528	0.01	544	0.01	-4.16
httpd	527	0.01	534	0.01	-2.55
Boa	521	0.01	519	0.01	-0.87
YUNDUN	509	0.01	558	0.01	-9.93
redir-httpd	499	0.01	496	0.01	-0.66
Caddy	499	0.01	463	0.01	6.42
XiakeWeb	474	0.01	383	0.01	22.21
Sun	472	0.01	474	0.01	-1.67
WowzaStreamingEngine	466	0.01	453	0.01	1.58
EdgePrism	466	0.01	464	0.01	-0.83
Nginx-VPSSIM	455	0.01	481	0.01	-6.59
Oracle-iPlanet-Web-Server	446	0.01	451	0.01	-2.35
Sun-ONE-Web-Server	442	0.01	445	0.01	-1.92
1	428	0.01	425	0.01	-0.56
Zeus	419	0.01	419	0.01	-1.25
Nginx	417	0.01	351	0.01	17.31
SonicWALL	415	0.01	406	0.01	0.93
QRATOR	414	0.01	396	0.01	3.23
NetBox	412	0.01	415	0.01	-1.97
VWebServer	388	0.01	391	0.01	-2.01
Google	379	0.01	387	0.01	-3.30
Cherokee	373	0.01	376	0.01	-2.04
ghs	355	0.01	322	0.01	8.87
cc-web	354	0.01	353	0.01	-0.97
Footprint	346	0.01	373	0.01	-8.40
Unknown	340	0.01	345	0.01	-2.69
gunicorn	332	0.01	347	0.01	-5.52
yunjiasu-nginx	329	0.01	339	0.01	-4.17
Abyss	325	0.01	323	0.01	-0.64
SAP	303	0.01	300	0.01	-0.27
WildFly	301	0.01	280	0.01	6.15
Netscape-Enterprise	293	0.01	293	0.01	-1.25
Black	292	0.01	288	0.01	0.12
Werkzeug	286	0.01	283	0.01	-0.21
360wzws	284	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.