You are viewing an outdated report. The latest version of this report was published on September 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) 58,694,250 hostnames, but only 4,969,178 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	October 2020 Count	October 2020 %	September 2020 Count	September 2020 %	Growth %
Apache	2,050,664	41.27	2,065,155	41.25	0.03
nginx	1,235,455	24.86	1,246,940	24.91	-0.19
Microsoft-IIS	534,416	10.75	549,212	10.97	-1.98
null	342,030	6.88	339,131	6.77	1.60
Microsoft-HTTPAPI	217,118	4.37	221,377	4.42	-1.20
cloudflare	132,745	2.67	135,068	2.70	-0.99
LiteSpeed	69,697	1.40	67,883	1.36	3.43
Nginx	62,139	1.25	59,244	1.18	5.66
IdeaWebServer	41,068	0.83	41,418	0.83	-0.11
BigIP	29,543	0.59	29,664	0.59	0.33
openresty	27,120	0.55	24,373	0.49	12.09
Tengine	24,761	0.50	25,898	0.52	-3.68
awselb	21,702	0.44	19,458	0.39	12.36
Apache-Coyote	21,117	0.42	21,606	0.43	-1.54
AkamaiGHost	18,939	0.38	18,999	0.38	0.42
AmazonS3	12,781	0.26	12,334	0.25	4.39
Flywheel	7,262	0.15	7,388	0.15	-0.98
CloudFront	5,981	0.12	6,571	0.13	-8.31
nginx-rc	5,288	0.11	5,118	0.10	4.08
wts	4,886	0.10	4,988	0.10	-1.32
lighttpd	4,425	0.09	4,460	0.09	-0.05
Varnish	4,289	0.09	4,157	0.08	3.94
nginx-reuseport	4,186	0.08	4,146	0.08	1.71
Firewall	3,207	0.06	3,063	0.06	5.47
Caddy	2,852	0.06	2,867	0.06	0.21
Lotus-Domino	2,757	0.06	2,791	0.06	-0.49
EZproxy	2,566	0.05	2,571	0.05	0.54
kangle	1,969	0.04	2,014	0.04	-1.51
WWW	1,926	0.04	2,046	0.04	-5.17
Safedog	1,325	0.03	1,386	0.03	-3.70
Cowboy	1,254	0.03	1,244	0.02	1.55
Server	1,248	0.03	1,213	0.02	3.65
Microsoft-Azure-Application-Gateway	1,189	0.02	1,083	0.02	10.60
squid	1,176	0.02	1,188	0.02	-0.28
ws-httpd	1,138	0.02	1,153	0.02	-0.57
AliyunOSS	1,112	0.02	1,113	0.02	0.65
scl	1,080	0.02	1,070	0.02	1.68
Icecast	888	0.02	884	0.02	1.19
Resin	837	0.02	916	0.02	-7.95
IceWarp	834	0.02	837	0.02	0.38
VWebServer	817	0.02	823	0.02	0.00
IIS	803	0.02	812	0.02	-0.38
WDaemon	766	0.02	782	0.02	-1.32
Destiny	696	0.01	710	0.01	-1.25
GlassFish	654	0.01	657	0.01	0.28
ddos-guard	650	0.01	645	0.01	1.52
Kestrel	638	0.01	628	0.01	2.34
Prometheus	634	0.01	591	0.01	8.07
CHO	613	0.01	613	0.01	0.74
o2switch-PowerBoost-v3	591	0.01	585	0.01	1.77
ScreenConnect	581	0.01	595	0.01	-1.63
Zope	574	0.01	579	0.01	-0.13
-	510	0.01	507	0.01	1.33
ECAcc	499	0.01	530	0.01	-5.15
redir-httpd	488	0.01	487	0.01	0.95
EdgePrism	478	0.01	454	0.01	6.06
OpenBSD	474	0.01	473	0.01	0.95
ATS	464	0.01	460	0.01	1.61
Oracle-Application-Server-10g	443	0.01	463	0.01	-3.61
sffe	439	0.01	444	0.01	-0.40
IBM_HTTP_Server	435	0.01	459	0.01	-4.53
aruba-proxy	432	0.01	423	0.01	2.88
YxlinkWAF	427	0.01	441	0.01	-2.46
QRATOR	426	0.01	417	0.01	2.91
Rumpus	419	0.01	415	0.01	1.71
Web	410	0.01	418	0.01	-1.19
CentOS	398	0.01	405	0.01	-1.00
WAF	381	0.01	356	0.01	7.81
nginx-upupw	378	0.01	367	0.01	3.76
cloudflare-nginx	378	0.01	362	0.01	5.19
III	356	0.01	361	0.01	-0.66
UploadServer	344	0.01	334	0.01	3.75
cc-web	342	0.01	344	0.01	0.15
WildFly	341	0.01	350	0.01	-1.85
ghs	330	0.01	327	0.01	1.66
4D	328	0.01	344	0.01	-3.95
web	323	0.01	339	0.01	-4.02
LRBD-0a25541	321	0.01	319	0.01	1.37
shield	318	0.01	331	0.01	-3.22
CommuniGatePro	312	0.01	306	0.01	2.71
Protected	307	0.01	330	0.01	-6.28
******	306	0.01	314	0.01	-1.83
nginx-clojure	301	0.01	0	0.00	N/A
WowzaStreamingEngine	300	0.01	310	0.01	-2.51
MageStack-MagentoOS	293	0.01	296	0.01	-0.28
Netscape-Enterprise	291	0.01	296	0.01	-0.96
eClass	280	0.01	269	0.01	4.86
Werkzeug	280	0.01	290	0.01	-2.74
elb	279	0.01	266	0.01	5.66
bfe	272	0.01	275	0.01	-0.36
E2EE	271	0.01	0	0.00	N/A
WebServer	270	0.01	271	0.01	0.37
unknown	269	0.01	271	0.01	-0.01
ddosx	264	0.01	246	0.00	8.11
*****************	262	0.01	264	0.01	-0.02
kittenx	258	0.01	256	0.01	1.53
awex	253	0.01	254	0.01	0.34
gvs	249	0.01	250	0.00	0.34
ECS	249	0.01	254	0.01	-1.24
SonicWALL	244	0.00	249	0.00	-1.28

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.