You are viewing an outdated report.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) 73,439,227 hostnames, but only 5,209,465 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	January 2017 Count	January 2017 %	December 2016 Count	December 2016 %	Growth %
Apache	2,504,901	48.08	2,507,817	48.03	0.11
nginx	831,423	15.96	822,415	15.75	1.32
Microsoft-IIS	831,055	15.95	843,337	16.15	-1.23
null	375,259	7.20	375,682	7.20	0.11
Microsoft-HTTPAPI	206,197	3.96	205,685	3.94	0.47
cloudflare-nginx	78,787	1.51	81,794	1.57	-3.46
Apache-Coyote	54,079	1.04	54,641	1.05	-0.81
IdeaWebServer	50,035	0.96	49,683	0.95	0.93
LiteSpeed	36,422	0.70	36,039	0.69	1.29
BigIP	21,160	0.41	20,834	0.40	1.79
openresty	14,182	0.27	13,920	0.27	2.11
AkamaiGHost	12,419	0.24	12,549	0.24	-0.81
lighttpd	9,372	0.18	9,584	0.18	-1.99
IIS	7,632	0.15	7,943	0.15	-3.70
Tengine	7,431	0.14	7,243	0.14	2.83
WWW	7,409	0.14	8,218	0.16	-9.64
Flywheel	6,835	0.13	6,564	0.13	4.36
squid	6,437	0.12	6,765	0.13	-4.63
A	6,197	0.12	6,226	0.12	-0.24
Safedog	5,901	0.11	5,963	0.11	-0.82
Lotus-Domino	5,531	0.11	5,582	0.11	-0.69
wts	5,239	0.10	5,163	0.10	1.70
Cowboy	4,375	0.08	4,507	0.09	-2.71
Varnish	4,233	0.08	4,185	0.08	1.37
AmazonS3	3,482	0.07	3,166	0.06	10.23
kangle	3,304	0.06	3,097	0.06	6.92
sffe	3,239	0.06	3,273	0.06	-0.82
CloudFront	2,829	0.05	2,909	0.06	-2.53
EZproxy	2,676	0.05	2,680	0.05	0.08
Resin	1,942	0.04	2,009	0.04	-3.12
IBM_HTTP_Server	1,897	0.04	1,925	0.04	-1.23
nginx-reuseport	1,822	0.03	1,791	0.03	1.96
Zope	1,762	0.03	1,792	0.03	-1.45
Destiny	1,726	0.03	1,677	0.03	3.15
Pantheon	1,644	0.03	1,612	0.03	2.21
GSYQ	1,592	0.03	2,747	0.05	-41.92
-	1,463	0.03	1,507	0.03	-2.70
WDaemon	1,310	0.03	1,331	0.03	-1.36
YxlinkWAF	1,217	0.02	1,282	0.02	-4.86
Oracle-Application-Server-10g	1,160	0.02	1,178	0.02	-1.31
IceWarp	1,158	0.02	1,154	0.02	0.57
GlassFish	1,152	0.02	1,149	0.02	0.49
III	1,059	0.02	1,069	0.02	-0.71
xServers	965	0.02	1,416	0.03	-31.70
GSHD	898	0.02	766	0.01	17.50
ScreenConnect	897	0.02	891	0.02	0.90
Rumpus	842	0.02	833	0.02	1.31
ATS	807	0.02	812	0.02	-0.39
ws-httpd	795	0.02	778	0.01	2.41
Bomgar	784	0.02	781	0.01	0.61
CHO	782	0.02	781	0.01	0.35
Cougar	781	0.01	800	0.02	-2.16
PWS	742	0.01	725	0.01	2.57
Web	738	0.01	732	0.01	1.05
Oracle-Application-Server-11g	735	0.01	731	0.01	0.77
Icecast	677	0.01	652	0.01	4.07
WAF	675	0.01	0	0.00	N/A
Protected	662	0.01	585	0.01	13.42
WebServer	610	0.01	616	0.01	-0.75
thttpd	588	0.01	589	0.01	0.05
Server	574	0.01	566	0.01	1.64
XiakeWeb	559	0.01	474	0.01	18.20
*****************	547	0.01	599	0.01	-8.48
kisa	543	0.01	543	0.01	0.22
Caddy	536	0.01	499	0.01	7.66
httpd	526	0.01	527	0.01	0.03
TWebAP	526	0.01	549	0.01	-3.97
Oracle	524	0.01	530	0.01	-0.91
CommuniGatePro	520	0.01	528	0.01	-1.29
Boa	518	0.01	521	0.01	-0.35
redir-httpd	499	0.01	499	0.01	0.22
EdgePrism	473	0.01	466	0.01	1.73
Sun	462	0.01	472	0.01	-1.90
WowzaStreamingEngine	450	0.01	466	0.01	-3.22
Sun-ONE-Web-Server	450	0.01	442	0.01	2.04
Nginx-VPSSIM	442	0.01	455	0.01	-2.64
Nginx	438	0.01	417	0.01	5.27
Oracle-iPlanet-Web-Server	422	0.01	446	0.01	-5.17
1	419	0.01	428	0.01	-1.88
SonicWALL	416	0.01	415	0.01	0.47
QRATOR	409	0.01	414	0.01	-0.99
NetBox	408	0.01	412	0.01	-0.75
VWebServer	407	0.01	388	0.01	5.13
Zeus	405	0.01	419	0.01	-3.12
Google	373	0.01	379	0.01	-1.36
Cherokee	364	0.01	373	0.01	-2.19
Black	363	0.01	292	0.01	24.59
cc-web	357	0.01	354	0.01	1.07
Unknown	355	0.01	340	0.01	4.65
ghs	345	0.01	355	0.01	-2.60
Footprint	337	0.01	346	0.01	-2.38
gunicorn	335	0.01	332	0.01	1.13
Abyss	318	0.01	325	0.01	-1.93
yunjiasu-nginx	317	0.01	329	0.01	-3.43
WildFly	312	0.01	301	0.01	3.89
360wzws	309	0.01	284	0.01	9.05
Werkzeug	299	0.01	286	0.01	4.78
SAP	292	0.01	303	0.01	-3.41
Netscape-Enterprise	292	0.01	293	0.01	-0.12
AliyunOSS	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.