You are viewing an outdated report. The latest version of this report was published on December 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) 60,120,361 hostnames, but only 5,005,869 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	September 2020 Count	September 2020 %	August 2020 Count	August 2020 %	Growth %
Apache	2,065,155	41.25	2,107,866	41.19	0.15
nginx	1,246,940	24.91	1,266,807	24.76	0.62
Microsoft-IIS	549,212	10.97	582,041	11.37	-3.54
null	339,131	6.77	341,130	6.67	1.63
Microsoft-HTTPAPI	221,377	4.42	232,665	4.55	-2.73
cloudflare	135,068	2.70	139,965	2.74	-1.35
LiteSpeed	67,883	1.36	67,155	1.31	3.33
Nginx	59,244	1.18	57,504	1.12	5.32
IdeaWebServer	41,418	0.83	41,645	0.81	1.67
BigIP	29,664	0.59	29,831	0.58	1.65
Tengine	25,898	0.52	27,444	0.54	-3.53
openresty	24,373	0.49	22,044	0.43	13.03
Apache-Coyote	21,606	0.43	22,287	0.44	-0.90
awselb	19,458	0.39	19,592	0.38	1.53
AkamaiGHost	18,999	0.38	18,976	0.37	2.35
AmazonS3	12,334	0.25	12,101	0.24	4.19
Flywheel	7,388	0.15	7,546	0.15	0.08
CloudFront	6,571	0.13	6,999	0.14	-4.03
nginx-rc	5,118	0.10	5,016	0.10	4.30
wts	4,988	0.10	4,587	0.09	11.16
lighttpd	4,460	0.09	4,507	0.09	1.16
Varnish	4,157	0.08	4,211	0.08	0.91
nginx-reuseport	4,146	0.08	4,143	0.08	2.30
Firewall	3,063	0.06	1,326	0.03	136.14
Caddy	2,867	0.06	2,789	0.05	5.08
Lotus-Domino	2,791	0.06	2,857	0.06	-0.14
EZproxy	2,571	0.05	2,586	0.05	1.63
WWW	2,046	0.04	2,341	0.05	-10.66
kangle	2,014	0.04	1,935	0.04	6.40
Safedog	1,386	0.03	1,617	0.03	-12.38
Cowboy	1,244	0.02	1,321	0.03	-3.73
Server	1,213	0.02	1,152	0.02	7.64
squid	1,188	0.02	1,224	0.02	-0.78
ws-httpd	1,153	0.02	1,155	0.02	2.05
AliyunOSS	1,113	0.02	1,085	0.02	4.86
Microsoft-Azure-Application-Gateway	1,083	0.02	1,014	0.02	9.18
scl	1,070	0.02	1,061	0.02	3.09
Resin	916	0.02	992	0.02	-5.61
Icecast	884	0.02	874	0.02	3.39
IceWarp	837	0.02	849	0.02	0.78
VWebServer	823	0.02	793	0.02	6.09
IIS	812	0.02	990	0.02	-16.15
WDaemon	782	0.02	784	0.02	1.96
Destiny	710	0.01	720	0.01	0.81
GlassFish	657	0.01	689	0.01	-2.52
ddos-guard	645	0.01	636	0.01	3.67
Kestrel	628	0.01	657	0.01	-2.29
CHO	613	0.01	615	0.01	1.89
ScreenConnect	595	0.01	603	0.01	0.87
Prometheus	591	0.01	575	0.01	5.07
o2switch-PowerBoost-v3	585	0.01	574	0.01	4.18
Zope	579	0.01	606	0.01	-2.33
ECAcc	530	0.01	551	0.01	-1.67
-	507	0.01	569	0.01	-8.91
redir-httpd	487	0.01	486	0.01	2.44
OpenBSD	473	0.01	465	0.01	3.98
Oracle-Application-Server-10g	463	0.01	474	0.01	-0.15
ATS	460	0.01	481	0.01	-2.24
IBM_HTTP_Server	459	0.01	451	0.01	4.04
EdgePrism	454	0.01	452	0.01	2.68
sffe	444	0.01	448	0.01	1.31
YxlinkWAF	441	0.01	461	0.01	-2.21
aruba-proxy	423	0.01	415	0.01	4.20
Web	418	0.01	409	0.01	4.47
QRATOR	417	0.01	419	0.01	1.74
Rumpus	415	0.01	427	0.01	-0.65
CentOS	405	0.01	460	0.01	-10.00
nginx-upupw	367	0.01	354	0.01	5.98
cloudflare-nginx	362	0.01	343	0.01	7.89
III	361	0.01	380	0.01	-2.89
WAF	356	0.01	320	0.01	13.73
WildFly	350	0.01	353	0.01	1.36
cc-web	344	0.01	347	0.01	1.34
4D	344	0.01	335	0.01	4.97
web	339	0.01	340	0.01	1.92
UploadServer	334	0.01	325	0.01	5.06
shield	331	0.01	325	0.01	4.11
Protected	330	0.01	329	0.01	2.54
ghs	327	0.01	323	0.01	3.49
LRBD-0a25541	319	0.01	321	0.01	1.59
******	314	0.01	293	0.01	9.55
WowzaStreamingEngine	310	0.01	300	0.01	5.63
CommuniGatePro	306	0.01	311	0.01	0.58
Netscape-Enterprise	296	0.01	297	0.01	1.88
MageStack-MagentoOS	296	0.01	306	0.01	-1.12
Werkzeug	290	0.01	284	0.01	4.38
bfe	275	0.01	273	0.01	2.97
unknown	271	0.01	270	0.01	2.60
WebServer	271	0.01	276	0.01	0.37
eClass	269	0.01	258	0.01	6.58
elb	266	0.01	263	0.01	3.39
*****************	264	0.01	0	0.00	N/A
kittenx	256	0.01	248	0.00	5.52
awex	254	0.01	254	0.00	2.23
ECS	254	0.01	260	0.01	-0.13
gvs	250	0.00	255	0.00	0.22
SonicWALL	249	0.00	248	0.00	2.64
gunicorn	246	0.00	0	0.00	N/A
envoy	246	0.00	0	0.00	N/A
ddosx	246	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.