You are viewing an outdated report.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) 73,225,327 hostnames, but only 5,528,522 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 2017 Count	November 2017 %	October 2017 Count	October 2017 %	Growth %
Apache	2,571,873	46.52	2,556,977	46.69	-0.36
nginx	965,829	17.47	945,298	17.26	1.22
Microsoft-IIS	862,792	15.61	873,021	15.94	-2.09
null	403,756	7.30	398,674	7.28	0.33
Microsoft-HTTPAPI	240,724	4.35	227,631	4.16	4.76
cloudflare-nginx	90,163	1.63	88,958	1.62	0.41
IdeaWebServer	51,118	0.92	51,161	0.93	-1.02
Apache-Coyote	48,359	0.87	47,255	0.86	1.38
LiteSpeed	40,918	0.74	40,878	0.75	-0.84
BigIP	25,034	0.45	24,645	0.45	0.63
openresty	16,949	0.31	16,715	0.31	0.45
AkamaiGHost	14,598	0.26	13,772	0.25	5.01
CloudFront	10,515	0.19	9,148	0.17	13.87
Flywheel	10,221	0.18	9,869	0.18	2.60
Tengine	9,887	0.18	9,284	0.17	5.50
lighttpd	8,041	0.15	8,122	0.15	-1.92
WWW	6,962	0.13	6,558	0.12	5.17
wts	5,910	0.11	5,939	0.11	-1.42
IIS	5,286	0.10	5,388	0.10	-2.81
squid	5,139	0.09	5,161	0.09	-1.36
AmazonS3	5,019	0.09	4,646	0.08	7.02
Lotus-Domino	4,924	0.09	5,014	0.09	-2.71
Varnish	4,577	0.08	4,578	0.08	-0.95
Safedog	4,437	0.08	3,692	0.07	19.06
kangle	4,084	0.07	3,860	0.07	4.82
Cowboy	3,226	0.06	3,309	0.06	-3.42
sffe	3,212	0.06	3,069	0.06	3.68
EZproxy	2,762	0.05	2,739	0.05	-0.10
nginx-reuseport	2,623	0.05	2,572	0.05	1.03
XtendWeb-nginx	2,329	0.04	2,027	0.04	13.83
Resin	1,738	0.03	1,708	0.03	0.81
IBM_HTTP_Server	1,401	0.03	1,389	0.03	-0.08
Destiny	1,351	0.02	1,413	0.03	-5.28
Zope	1,316	0.02	1,325	0.02	-1.61
YxlinkWAF	1,217	0.02	649	0.01	85.77
WDaemon	1,200	0.02	1,208	0.02	-1.59
GlassFish	1,190	0.02	1,215	0.02	-2.97
IceWarp	1,148	0.02	1,161	0.02	-2.04
-	1,143	0.02	1,163	0.02	-2.64
nginx-upupw	1,139	0.02	1,870	0.03	-39.66
Caddy	1,122	0.02	1,090	0.02	1.98
linuxOS	1,011	0.02	380	0.01	163.57
III	1,001	0.02	1,001	0.02	-0.93
Oracle-Application-Server-10g	998	0.02	1,019	0.02	-2.97
ScreenConnect	973	0.02	967	0.02	-0.32
ws-httpd	942	0.02	927	0.02	0.67
Pantheon	873	0.02	1,129	0.02	-23.40
GSYQ	824	0.01	1,151	0.02	-29.08
Icecast	815	0.01	800	0.01	0.92
Rumpus	804	0.01	810	0.01	-1.67
PWS	780	0.01	779	0.01	-0.81
CHO	773	0.01	770	0.01	-0.55
Bomgar	737	0.01	756	0.01	-3.42
Nginx	713	0.01	695	0.01	1.63
Web	683	0.01	745	0.01	-9.18
Oracle-Application-Server-11g	672	0.01	679	0.01	-1.95
ATS	657	0.01	646	0.01	0.75
Server	627	0.01	615	0.01	1.00
Protected	624	0.01	575	0.01	7.51
Cougar	605	0.01	615	0.01	-2.54
WAF	569	0.01	551	0.01	2.30
WebServer	555	0.01	565	0.01	-2.69
*****************	544	0.01	399	0.01	35.07
xServers	542	0.01	713	0.01	-24.69
VWebServer	518	0.01	402	0.01	27.65
thttpd	513	0.01	528	0.01	-3.75
redir-httpd	499	0.01	498	0.01	-0.73
WowzaStreamingEngine	497	0.01	491	0.01	0.28
httpd	476	0.01	483	0.01	-2.37
TWebAP	476	0.01	469	0.01	0.55
CommuniGatePro	475	0.01	470	0.01	0.12
Pagely	459	0.01	457	0.01	-0.50
Boa	458	0.01	458	0.01	-0.93
AliyunOSS	457	0.01	447	0.01	1.28
Oracle	449	0.01	457	0.01	-2.67
awselb	443	0.01	428	0.01	2.54
yunjiasu-nginx	437	0.01	445	0.01	-2.71
EdgePrism	434	0.01	522	0.01	-17.63
WildFly	431	0.01	443	0.01	-3.62
QRATOR	425	0.01	423	0.01	-0.46
cc-web	414	0.01	413	0.01	-0.69
Sun	406	0.01	391	0.01	2.87
SonicWALL	399	0.01	403	0.01	-1.92
ECAcc	396	0.01	374	0.01	4.89
CentOS	383	0.01	357	0.01	6.28
1	378	0.01	385	0.01	-2.73
Werkzeug	376	0.01	382	0.01	-2.49
LRBD-4295c9b	367	0.01	0	0.00	N/A
360wzws	365	0.01	0	0.00	N/A
ghs	360	0.01	324	0.01	10.07
Firewall	359	0.01	446	0.01	-20.26
Sun-ONE-Web-Server	349	0.01	339	0.01	1.99
OpenBSD	343	0.01	333	0.01	2.04
Oracle-iPlanet-Web-Server	335	0.01	354	0.01	-6.25
GSHD	333	0.01	415	0.01	-20.51
Abyss	331	0.01	326	0.01	0.59
Google	329	0.01	338	0.01	-3.57
gunicorn	326	0.01	338	0.01	-4.45
ECS	324	0.01	318	0.01	0.94
NginxPlus	305	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.