You are viewing an outdated report.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) 71,071,531 hostnames, but only 5,562,237 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 2017 Count	December 2017 %	November 2017 Count	November 2017 %	Growth %
Apache	2,582,352	46.43	2,571,873	46.52	-0.20
nginx	989,858	17.80	965,829	17.47	1.87
Microsoft-IIS	850,054	15.28	862,792	15.61	-2.07
null	401,959	7.23	403,756	7.30	-1.05
Microsoft-HTTPAPI	248,809	4.47	240,724	4.35	2.73
IdeaWebServer	51,305	0.92	51,118	0.92	-0.24
cloudflare-nginx	50,962	0.92	90,163	1.63	-43.82
Apache-Coyote	48,072	0.86	48,359	0.87	-1.20
LiteSpeed	41,074	0.74	40,918	0.74	-0.23
cloudflare	40,137	0.72	0	0.00	N/A
BigIP	26,177	0.47	25,034	0.45	3.93
openresty	17,555	0.32	16,949	0.31	2.95
CloudFront	13,932	0.25	10,515	0.19	31.69
AkamaiGHost	12,941	0.23	14,598	0.26	-11.89
Flywheel	10,588	0.19	10,221	0.18	2.96
Tengine	10,339	0.19	9,887	0.18	3.94
lighttpd	7,922	0.14	8,041	0.15	-2.08
WWW	6,466	0.12	6,962	0.13	-7.69
wts	6,294	0.11	5,910	0.11	5.85
AmazonS3	5,672	0.10	5,019	0.09	12.33
IIS	5,157	0.09	5,286	0.10	-3.03
squid	5,095	0.09	5,139	0.09	-1.46
Lotus-Domino	4,884	0.09	4,924	0.09	-1.41
Varnish	4,467	0.08	4,577	0.08	-2.99
Safedog	4,317	0.08	4,437	0.08	-3.29
kangle	4,224	0.08	4,084	0.07	2.80
Cowboy	3,066	0.06	3,226	0.06	-5.54
sffe	3,004	0.05	3,212	0.06	-7.04
EZproxy	2,740	0.05	2,762	0.05	-1.40
nginx-reuseport	2,725	0.05	2,623	0.05	3.26
XtendWeb-nginx	2,365	0.04	2,329	0.04	0.93
Resin	1,728	0.03	1,738	0.03	-1.18
linuxOS	1,465	0.03	1,011	0.02	44.03
IBM_HTTP_Server	1,385	0.02	1,401	0.03	-1.74
Destiny	1,316	0.02	1,351	0.02	-3.18
Zope	1,283	0.02	1,316	0.02	-3.10
YxlinkWAF	1,244	0.02	1,217	0.02	1.60
WDaemon	1,190	0.02	1,200	0.02	-1.43
GlassFish	1,187	0.02	1,190	0.02	-0.86
Caddy	1,172	0.02	1,122	0.02	3.82
-	1,158	0.02	1,143	0.02	0.70
IceWarp	1,136	0.02	1,148	0.02	-1.65
ScreenConnect	1,005	0.02	973	0.02	2.66
III	969	0.02	1,001	0.02	-3.78
Oracle-Application-Server-10g	966	0.02	998	0.02	-3.79
ws-httpd	963	0.02	942	0.02	1.61
nginx-upupw	856	0.02	1,139	0.02	-25.30
PWS	849	0.02	780	0.01	8.19
Icecast	845	0.02	815	0.01	3.05
Rumpus	791	0.01	804	0.01	-2.21
GSYQ	788	0.01	824	0.01	-4.95
CHO	772	0.01	773	0.01	-0.73
Nginx	755	0.01	713	0.01	5.25
Bomgar	752	0.01	737	0.01	1.42
Pantheon	715	0.01	873	0.02	-18.59
Web	710	0.01	683	0.01	3.32
Server	676	0.01	627	0.01	7.16
Oracle-Application-Server-11g	665	0.01	672	0.01	-1.64
ATS	649	0.01	657	0.01	-1.82
Cougar	578	0.01	605	0.01	-5.04
WebServer	576	0.01	555	0.01	3.15
*****************	571	0.01	544	0.01	4.33
VWebServer	564	0.01	518	0.01	8.22
WAF	563	0.01	569	0.01	-1.65
xServers	551	0.01	542	0.01	1.04
WowzaStreamingEngine	510	0.01	497	0.01	1.99
thttpd	507	0.01	513	0.01	-1.77
redir-httpd	498	0.01	499	0.01	-0.81
awselb	484	0.01	443	0.01	8.59
AliyunOSS	483	0.01	457	0.01	5.05
httpd	478	0.01	476	0.01	-0.19
Protected	474	0.01	624	0.01	-24.50
EdgePrism	474	0.01	434	0.01	8.55
CommuniGatePro	471	0.01	475	0.01	-1.44
TWebAP	467	0.01	476	0.01	-2.49
yunjiasu-nginx	459	0.01	437	0.01	4.40
WildFly	459	0.01	431	0.01	5.85
Pagely	456	0.01	459	0.01	-1.26
Boa	452	0.01	458	0.01	-1.91
Oracle	445	0.01	449	0.01	-1.49
QRATOR	426	0.01	425	0.01	-0.37
ECAcc	425	0.01	396	0.01	6.67
cc-web	422	0.01	414	0.01	1.31
CentOS	406	0.01	383	0.01	5.36
Sun	399	0.01	406	0.01	-2.32
SonicWALL	390	0.01	399	0.01	-2.85
LTMP	370	0.01	0	0.00	N/A
LRBD-e3b8e93	367	0.01	0	0.00	N/A
1	362	0.01	378	0.01	-4.81
Werkzeug	361	0.01	376	0.01	-4.57
nginx-rc	351	0.01	0	0.00	N/A
Sun-ONE-Web-Server	347	0.01	349	0.01	-1.18
ghs	339	0.01	360	0.01	-6.40
OpenBSD	339	0.01	343	0.01	-1.77
360wzws	338	0.01	365	0.01	-7.96
ECS	333	0.01	324	0.01	2.15
gunicorn	332	0.01	326	0.01	1.22
GSHD	325	0.01	333	0.01	-2.99
Abyss	325	0.01	331	0.01	-2.41
Google	323	0.01	329	0.01	-2.42

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.