You are viewing an outdated report. The latest version of this report was published on April 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) 60,674,085 hostnames, but only 5,337,344 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 2019 Count	December 2019 %	November 2019 Count	November 2019 %	Growth %
Apache	2,174,752	40.75	2,162,092	41.12	-0.91
nginx	1,216,598	22.79	1,179,997	22.44	1.57
Microsoft-IIS	749,091	14.03	728,609	13.86	1.29
null	340,203	6.37	332,277	6.32	0.87
Microsoft-HTTPAPI	299,627	5.61	304,303	5.79	-3.00
cloudflare	157,414	2.95	164,166	3.12	-5.53
LiteSpeed	59,046	1.11	58,168	1.11	0.01
IdeaWebServer	43,696	0.82	43,639	0.83	-1.35
Tengine	35,678	0.67	34,414	0.65	2.14
BigIP	29,646	0.56	29,538	0.56	-1.12
Apache-Coyote	26,685	0.50	26,889	0.51	-2.23
AkamaiGHost	17,756	0.33	16,391	0.31	6.72
openresty	17,589	0.33	16,746	0.32	3.48
Nginx	13,049	0.24	7,725	0.15	66.42
awselb	12,106	0.23	11,458	0.22	4.09
AmazonS3	11,702	0.22	11,395	0.22	1.17
Flywheel	9,160	0.17	9,445	0.18	-4.45
CloudFront	5,840	0.11	4,866	0.09	18.24
wts	5,445	0.10	5,302	0.10	1.18
lighttpd	5,073	0.10	5,116	0.10	-2.31
Varnish	4,277	0.08	4,166	0.08	1.14
nginx-reuseport	3,992	0.07	3,946	0.08	-0.33
nginx-rc	3,643	0.07	3,493	0.07	2.75
Lotus-Domino	3,319	0.06	3,328	0.06	-1.75
Safedog	2,757	0.05	2,884	0.05	-5.82
EZproxy	2,638	0.05	2,632	0.05	-1.26
WWW	2,527	0.05	2,877	0.05	-13.47
Caddy	2,219	0.04	2,154	0.04	1.49
kangle	1,990	0.04	2,105	0.04	-6.86
Cowboy	1,546	0.03	1,525	0.03	-0.13
squid	1,453	0.03	1,468	0.03	-2.49
Firewall	1,261	0.02	1,271	0.02	-2.26
IIS	1,195	0.02	1,072	0.02	9.82
ws-httpd	1,171	0.02	1,165	0.02	-0.97
Resin	1,050	0.02	1,041	0.02	-0.63
YxlinkWAF	1,037	0.02	953	0.02	7.20
scl	959	0.02	965	0.02	-2.09
IceWarp	929	0.02	930	0.02	-1.59
AliyunOSS	886	0.02	833	0.02	4.79
Icecast	885	0.02	863	0.02	1.03
nginx-clojure	858	0.02	398	0.01	112.38
WDaemon	830	0.02	830	0.02	-1.48
Server	788	0.01	777	0.01	-0.09
Destiny	781	0.01	769	0.01	0.06
GlassFish	762	0.01	774	0.01	-3.01
-	758	0.01	960	0.02	-22.21
VWebServer	752	0.01	731	0.01	1.35
sffe	722	0.01	783	0.01	-9.16
Zope	712	0.01	724	0.01	-3.11
ScreenConnect	683	0.01	668	0.01	0.73
CHO	656	0.01	656	0.01	-1.48
CentOS	632	0.01	620	0.01	0.42
Kestrel	611	0.01	628	0.01	-4.15
IBM_HTTP_Server	609	0.01	605	0.01	-0.83
ECAcc	554	0.01	554	0.01	-1.48
Oracle-Application-Server-10g	546	0.01	537	0.01	0.17
III	510	0.01	518	0.01	-3.00
redir-httpd	486	0.01	487	0.01	-1.68
Rumpus	485	0.01	480	0.01	-0.46
ngjit	450	0.01	412	0.01	7.60
ATS	448	0.01	438	0.01	0.77
OpenBSD	445	0.01	438	0.01	0.09
EdgePrism	430	0.01	431	0.01	-1.71
web	417	0.01	404	0.01	1.69
Web	412	0.01	377	0.01	7.66
QRATOR	404	0.01	407	0.01	-2.21
aruba-proxy	376	0.01	367	0.01	0.93
WildFly	376	0.01	363	0.01	2.05
Protected	357	0.01	362	0.01	-2.84
Microsoft-Azure-Application-Gateway	357	0.01	280	0.01	25.61
cc-web	346	0.01	343	0.01	-0.62
TornadoServer	338	0.01	0	0.00	N/A
4D	337	0.01	332	0.01	0.00
WebServer	335	0.01	335	0.01	-1.48
Oracle-Application-Server-11g	334	0.01	340	0.01	-3.22
MageStack-MagentoOS	334	0.01	338	0.01	-2.65
CommuniGatePro	331	0.01	336	0.01	-2.95
LRBD-c148be0	328	0.01	0	0.00	N/A
unknown	324	0.01	316	0.01	1.01
WowzaStreamingEngine	320	0.01	306	0.01	3.03
Werkzeug	315	0.01	294	0.01	5.56
shield	311	0.01	316	0.01	-3.04
ECS	297	0.01	303	0.01	-3.43
ghs	296	0.01	292	0.01	-0.13
WAF	295	0.01	324	0.01	-10.30
*****************	294	0.01	280	0.01	3.44
Netscape-Enterprise	289	0.01	297	0.01	-4.14
httpd	270	0.01	270	0.01	-1.48
Bomgar	267	0.01	273	0.01	-3.65
UploadServer	263	0.00	261	0.00	-0.73
F5aaS	262	0.00	275	0.01	-6.14
ECD	261	0.00	259	0.00	-0.72
awex	253	0.00	254	0.00	-1.87
SonicWALL	250	0.00	243	0.00	1.36
yunjiasu-nginx	247	0.00	0	0.00	N/A
myracloud	247	0.00	242	0.00	0.55
long1	246	0.00	252	0.00	-3.83
bfe	246	0.00	251	0.00	-3.44
FlowBalancer	244	0.00	243	0.00	-1.08
gunicorn	243	0.00	246	0.00	-2.68

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.