You are viewing an outdated report.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) 74,665,908 hostnames, but only 5,261,605 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	March 2017 Count	March 2017 %	February 2017 Count	February 2017 %	Growth %
Apache	2,522,675	47.94	2,515,521	47.69	0.53
nginx	850,512	16.16	848,654	16.09	0.47
Microsoft-IIS	827,630	15.73	850,270	16.12	-2.42
null	379,315	7.21	382,372	7.25	-0.55
Microsoft-HTTPAPI	215,838	4.10	210,603	3.99	2.74
cloudflare-nginx	81,031	1.54	80,095	1.52	1.42
Apache-Coyote	52,020	0.99	53,702	1.02	-2.89
IdeaWebServer	50,632	0.96	50,267	0.95	0.98
LiteSpeed	37,089	0.70	37,421	0.71	-0.64
BigIP	22,096	0.42	21,628	0.41	2.42
openresty	14,881	0.28	14,690	0.28	1.55
AkamaiGHost	12,562	0.24	14,197	0.27	-11.30
lighttpd	8,963	0.17	9,094	0.17	-1.19
Tengine	7,732	0.15	7,627	0.14	1.63
Flywheel	7,614	0.14	7,332	0.14	4.11
IIS	7,456	0.14	7,463	0.14	0.16
WWW	7,316	0.14	8,115	0.15	-9.62
A	6,115	0.12	6,145	0.12	-0.24
squid	6,104	0.12	6,223	0.12	-1.67
wts	5,711	0.11	5,378	0.10	6.46
Lotus-Domino	5,376	0.10	5,444	0.10	-1.00
Safedog	5,000	0.10	5,155	0.10	-2.76
Varnish	4,386	0.08	4,382	0.08	0.34
Cowboy	3,861	0.07	4,200	0.08	-7.84
kangle	3,649	0.07	3,491	0.07	4.79
AmazonS3	3,514	0.07	3,366	0.06	4.66
sffe	3,171	0.06	3,161	0.06	0.57
CloudFront	2,922	0.06	3,345	0.06	-12.43
EZproxy	2,714	0.05	2,726	0.05	-0.19
nginx-reuseport	1,986	0.04	1,909	0.04	4.29
Resin	1,940	0.04	1,959	0.04	-0.72
Pantheon	1,801	0.03	1,768	0.03	2.12
IBM_HTTP_Server	1,799	0.03	1,822	0.03	-1.02
Zope	1,738	0.03	1,762	0.03	-1.12
Destiny	1,734	0.03	1,727	0.03	0.66
YxlinkWAF	1,519	0.03	1,395	0.03	9.16
WDaemon	1,278	0.02	1,299	0.02	-1.37
-	1,236	0.02	1,415	0.03	-12.43
IceWarp	1,146	0.02	1,157	0.02	-0.70
GlassFish	1,141	0.02	1,136	0.02	0.69
Oracle-Application-Server-10g	1,134	0.02	1,148	0.02	-0.97
GSYQ	1,092	0.02	1,346	0.03	-18.67
III	1,052	0.02	1,060	0.02	-0.51
xServers	975	0.02	981	0.02	-0.36
XtendWeb-nginx	922	0.02	322	0.01	187.05
ScreenConnect	902	0.02	915	0.02	-1.17
Rumpus	838	0.02	841	0.02	-0.11
GSHD	836	0.02	1,121	0.02	-25.24
ws-httpd	829	0.02	819	0.02	1.47
Protected	821	0.02	782	0.01	5.25
CHO	794	0.02	792	0.02	0.50
Bomgar	777	0.01	785	0.01	-0.77
Web	764	0.01	701	0.01	9.26
WAF	752	0.01	684	0.01	10.22
ATS	751	0.01	777	0.01	-3.10
Cougar	747	0.01	769	0.01	-2.62
Oracle-Application-Server-11g	738	0.01	742	0.01	-0.29
PWS	736	0.01	654	0.01	12.82
Icecast	690	0.01	688	0.01	0.54
Caddy	650	0.01	608	0.01	7.17
nginx-upupw	626	0.01	0	0.00	N/A
60bb	604	0.01	0	0.00	N/A
Server	594	0.01	586	0.01	1.62
thttpd	562	0.01	569	0.01	-0.98
WebServer	557	0.01	583	0.01	-4.22
*****************	550	0.01	536	0.01	2.87
TWebAP	548	0.01	551	0.01	-0.30
httpd	515	0.01	523	0.01	-1.28
Oracle	515	0.01	519	0.01	-0.52
CommuniGatePro	515	0.01	512	0.01	0.84
EdgePrism	506	0.01	510	0.01	-0.54
redir-httpd	493	0.01	499	0.01	-0.96
Boa	493	0.01	519	0.01	-4.77
Nginx	489	0.01	480	0.01	2.13
WowzaStreamingEngine	466	0.01	472	0.01	-1.02
Sun	460	0.01	462	0.01	-0.18
yunjiasu-nginx	425	0.01	322	0.01	32.32
VWebServer	425	0.01	410	0.01	3.92
1	418	0.01	417	0.01	0.49
SonicWALL	417	0.01	414	0.01	0.98
Sun-ONE-Web-Server	416	0.01	434	0.01	-3.91
QRATOR	399	0.01	402	0.01	-0.50
Oracle-iPlanet-Web-Server	397	0.01	413	0.01	-3.63
Zeus	393	0.01	411	0.01	-4.14
Pagely	386	0.01	381	0.01	1.57
cc-web	372	0.01	360	0.01	3.59
Google	363	0.01	363	0.01	0.25
WildFly	361	0.01	323	0.01	12.04
Nginx-VPSSIM	354	0.01	415	0.01	-14.49
Footprint	348	0.01	355	0.01	-1.73
ghs	344	0.01	339	0.01	1.73
Cherokee	343	0.01	349	0.01	-1.47
gunicorn	335	0.01	331	0.01	1.46
Unknown	334	0.01	349	0.01	-4.06
LRBD-477c61c	332	0.01	0	0.00	N/A
Abyss	332	0.01	336	0.01	-0.94
Werkzeug	319	0.01	295	0.01	8.41
AliyunOSS	304	0.01	305	0.01	-0.08
360wzws	297	0.01	0	0.00	N/A
SAP	296	0.01	290	0.01	2.32

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.