You are viewing an outdated report.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) 64,393,274 hostnames, but only 4,506,461 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	April 2022 Count	April 2022 %	March 2022 Count	March 2022 %	Growth %
Apache	1,655,165	36.73	1,671,933	37.16	-1.15
nginx	1,423,833	31.60	1,411,376	31.37	0.73
null	388,128	8.61	384,836	8.55	0.70
Microsoft-IIS	322,953	7.17	325,269	7.23	-0.86
Microsoft-HTTPAPI	192,005	4.26	189,697	4.22	1.06
cloudflare	103,236	2.29	99,402	2.21	3.70
LiteSpeed	79,021	1.75	77,849	1.73	1.35
Nginx	43,351	0.96	43,060	0.96	0.52
IdeaWebServer	36,508	0.81	36,595	0.81	-0.39
awselb	32,684	0.73	32,059	0.71	1.79
BigIP	26,669	0.59	26,690	0.59	-0.23
openresty	22,540	0.50	22,349	0.50	0.70
AmazonS3	18,389	0.41	18,182	0.40	0.98
AkamaiGHost	17,940	0.40	14,851	0.33	20.62
Tengine	14,095	0.31	14,494	0.32	-2.90
Apache-Coyote	13,090	0.29	13,079	0.29	-0.07
CloudFront	8,298	0.18	8,756	0.19	-5.38
nginx-rc	6,521	0.14	6,506	0.14	0.08
wts	5,203	0.12	5,181	0.12	0.27
Caddy	4,109	0.09	4,048	0.09	1.35
nginx-reuseport	4,011	0.09	4,011	0.09	-0.15
Flywheel	3,956	0.09	4,153	0.09	-4.89
Varnish	3,632	0.08	3,642	0.08	-0.43
lighttpd	3,341	0.07	3,371	0.07	-1.04
Microsoft-Azure-Application-Gateway	2,998	0.07	2,936	0.07	1.96
EZproxy	2,272	0.05	2,274	0.05	-0.24
Lotus-Domino	2,063	0.05	2,069	0.05	-0.44
scl	1,908	0.04	1,790	0.04	6.43
Safedog	1,382	0.03	1,556	0.03	-11.32
Kestrel	1,241	0.03	931	0.02	33.09
ddos-guard	1,190	0.03	1,170	0.03	1.55
Server	1,098	0.02	1,052	0.02	4.21
AliyunOSS	1,042	0.02	1,132	0.03	-8.09
Icecast	950	0.02	947	0.02	0.16
squid	907	0.02	900	0.02	0.62
o2switch-PowerBoost-v3	805	0.02	800	0.02	0.47
WWW	771	0.02	772	0.02	-0.28
IceWarp	726	0.02	728	0.02	-0.43
Firewall	723	0.02	726	0.02	-0.57
-	705	0.02	527	0.01	33.57
BitNinja	702	0.02	1,455	0.03	-51.83
kangle	652	0.01	654	0.01	-0.46
QRATOR	560	0.01	541	0.01	3.35
sffe	542	0.01	609	0.01	-11.14
******	515	0.01	524	0.01	-1.87
Destiny	508	0.01	502	0.01	1.04
OpenBSD	506	0.01	506	0.01	-0.15
aruba-proxy	505	0.01	506	0.01	-0.35
WDaemon	497	0.01	502	0.01	-1.15
ScreenConnect	481	0.01	474	0.01	1.32
elb	465	0.01	460	0.01	0.93
redir-httpd	463	0.01	463	0.01	-0.15
*********	457	0.01	371	0.01	22.99
CHO	453	0.01	453	0.01	-0.15
GlassFish	446	0.01	435	0.01	2.37
IIS	439	0.01	446	0.01	-1.72
Resin	422	0.01	427	0.01	-1.32
WVS	418	0.01	414	0.01	0.81
ECAcc	416	0.01	416	0.01	-0.15
Web	411	0.01	410	0.01	0.09
istio-envoy	393	0.01	381	0.01	2.99
ATS	390	0.01	423	0.01	-7.94
Zope	369	0.01	371	0.01	-0.69
eClass	356	0.01	352	0.01	0.98
yunjiasu	352	0.01	326	0.01	7.81
envoy	342	0.01	339	0.01	0.73
none	334	0.01	314	0.01	6.21
UploadServer	334	0.01	340	0.01	-1.91
Google	327	0.01	327	0.01	-0.15
web	324	0.01	367	0.01	-11.85
cloudflare-nginx	318	0.01	316	0.01	0.48
Windows-Azure-Blob	318	0.01	317	0.01	0.16
rdwr	317	0.01	308	0.01	2.77
cc-web	317	0.01	319	0.01	-0.78
CloudWAF	317	0.01	317	0.01	-0.15
bd-0.1.5	316	0.01	0	0.00	N/A
Rumpus	310	0.01	311	0.01	-0.47
Oracle-Application-Server-10g	306	0.01	304	0.01	0.50
stgw	305	0.01	300	0.01	1.51
nginx-clojure	282	0.01	0	0.00	N/A
ddosx	282	0.01	282	0.01	-0.15
VWebServer	279	0.01	314	0.01	-11.28
ghs	278	0.01	301	0.01	-7.78
4D	278	0.01	272	0.01	2.05
myracloud	276	0.01	270	0.01	2.07
bfe	274	0.01	274	0.01	-0.15
WAF	265	0.01	273	0.01	-3.08
MageStack-MagentoOS	264	0.01	271	0.01	-2.73
TencentWAF	257	0.01	254	0.01	1.03
Netscape-Enterprise	256	0.01	258	0.01	-0.93
CommuniGatePro	255	0.01	252	0.01	1.04
awex	244	0.01	249	0.01	-2.16
PowerSchool	243	0.01	241	0.01	0.68
wits	240	0.01	238	0.01	0.69
ldweb	238	0.01	236	0.01	0.69
Werkzeug	236	0.01	231	0.01	2.01
FlowBalancer	230	0.01	230	0.01	-0.15
WildFly	227	0.01	226	0.01	0.29
ECS	219	0.00	231	0.01	-5.34
SY8045	218	0.00	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.