You are viewing an outdated report.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) 62,354,210 hostnames, but only 4,866,780 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	November 2020 Count	November 2020 %	October 2020 Count	October 2020 %	Growth %
Apache	2,012,345	41.35	2,050,664	41.27	0.20
nginx	1,228,855	25.25	1,235,455	24.86	1.56
Microsoft-IIS	498,778	10.25	534,416	10.75	-4.70
null	335,604	6.90	342,030	6.88	0.19
Microsoft-HTTPAPI	210,116	4.32	217,118	4.37	-1.19
cloudflare	128,765	2.65	132,745	2.67	-0.96
LiteSpeed	69,924	1.44	69,697	1.40	2.44
Nginx	61,016	1.25	62,139	1.25	0.26
IdeaWebServer	40,758	0.84	41,068	0.83	1.33
BigIP	29,486	0.61	29,543	0.59	1.91
openresty	25,855	0.53	27,120	0.55	-2.66
Tengine	24,085	0.49	24,761	0.50	-0.68
awselb	21,591	0.44	21,702	0.44	1.58
Apache-Coyote	20,579	0.42	21,117	0.42	-0.50
AkamaiGHost	18,981	0.39	18,939	0.38	2.33
AmazonS3	13,081	0.27	12,781	0.26	4.50
Flywheel	7,136	0.15	7,262	0.15	0.33
CloudFront	6,336	0.13	5,981	0.12	8.16
nginx-rc	5,379	0.11	5,288	0.11	3.86
wts	4,924	0.10	4,886	0.10	2.90
lighttpd	4,322	0.09	4,425	0.09	-0.27
Varnish	4,214	0.09	4,289	0.09	0.32
nginx-reuseport	4,178	0.09	4,186	0.08	1.91
Firewall	3,179	0.07	3,207	0.06	1.21
Caddy	2,891	0.06	2,852	0.06	3.50
Lotus-Domino	2,713	0.06	2,757	0.06	0.47
EZproxy	2,551	0.05	2,566	0.05	1.51
WWW	1,818	0.04	1,926	0.04	-3.62
Microsoft-Azure-Application-Gateway	1,292	0.03	1,189	0.02	10.95
Server	1,268	0.03	1,248	0.03	3.74
kangle	1,250	0.03	1,969	0.04	-35.18
Cowboy	1,202	0.02	1,254	0.03	-2.13
squid	1,140	0.02	1,176	0.02	-1.02
ws-httpd	1,139	0.02	1,138	0.02	2.19
Safedog	1,137	0.02	1,325	0.03	-12.38
AliyunOSS	1,116	0.02	1,112	0.02	2.47
scl	1,087	0.02	1,080	0.02	2.77
Icecast	882	0.02	888	0.02	1.41
IceWarp	829	0.02	834	0.02	1.49
VWebServer	825	0.02	817	0.02	3.10
E2EE	795	0.02	271	0.01	199.53
WDaemon	754	0.02	766	0.02	0.50
Resin	749	0.02	837	0.02	-8.63
IIS	739	0.02	803	0.02	-6.03
Destiny	689	0.01	696	0.01	1.08
ddos-guard	666	0.01	650	0.01	4.62
GlassFish	631	0.01	654	0.01	-1.49
Prometheus	629	0.01	634	0.01	1.30
o2switch-PowerBoost-v3	610	0.01	591	0.01	5.39
Kestrel	610	0.01	638	0.01	-2.38
CHO	607	0.01	613	0.01	1.10
ScreenConnect	566	0.01	581	0.01	-0.53
Zope	564	0.01	574	0.01	0.33
-	508	0.01	510	0.01	1.70
sffe	501	0.01	439	0.01	16.52
redir-httpd	487	0.01	488	0.01	1.89
ECAcc	486	0.01	499	0.01	-0.56
OpenBSD	477	0.01	474	0.01	2.75
ATS	472	0.01	464	0.01	3.86
Oracle-Application-Server-10g	436	0.01	443	0.01	0.49
aruba-proxy	433	0.01	432	0.01	2.34
QRATOR	424	0.01	426	0.01	1.62
IBM_HTTP_Server	422	0.01	435	0.01	-0.95
Web	414	0.01	410	0.01	3.10
Rumpus	407	0.01	419	0.01	-0.82
cloudflare-nginx	388	0.01	378	0.01	4.81
YxlinkWAF	384	0.01	427	0.01	-8.18
CentOS	381	0.01	398	0.01	-2.26
web	345	0.01	323	0.01	9.06
cc-web	344	0.01	342	0.01	2.70
UploadServer	342	0.01	344	0.01	1.51
WAF	340	0.01	381	0.01	-8.88
******	339	0.01	306	0.01	13.12
WildFly	338	0.01	341	0.01	1.21
III	333	0.01	356	0.01	-4.49
ghs	327	0.01	330	0.01	1.18
EdgePrism	327	0.01	478	0.01	-30.15
LRBD-0a25541	319	0.01	321	0.01	1.47
shield	316	0.01	318	0.01	1.46
4D	310	0.01	328	0.01	-3.50
CommuniGatePro	307	0.01	312	0.01	0.47
nginx-upupw	304	0.01	378	0.01	-17.88
Netscape-Enterprise	290	0.01	291	0.01	1.75
WowzaStreamingEngine	289	0.01	300	0.01	-1.64
Protected	287	0.01	307	0.01	-4.55
MageStack-MagentoOS	287	0.01	293	0.01	0.01
eClass	286	0.01	280	0.01	4.29
elb	284	0.01	279	0.01	3.93
Werkzeug	278	0.01	280	0.01	1.37
ddosx	272	0.01	264	0.01	5.20
envoy	271	0.01	0	0.00	N/A
bfe	269	0.01	272	0.01	0.98
unknown	268	0.01	269	0.01	1.72
kittenx	260	0.01	258	0.01	2.90
WebServer	258	0.01	270	0.01	-2.43
nginx-clojure	257	0.01	301	0.01	-12.82
ECS	254	0.01	249	0.01	4.15
awex	253	0.01	253	0.01	2.10
gvs	249	0.01	249	0.01	2.10
*****************	244	0.01	262	0.01	-4.91

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.