You are viewing an outdated report.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) 64,253,770 hostnames, but only 5,045,536 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	February 2018 Count	February 2018 %	January 2018 Count	January 2018 %	Growth %
Apache	2,416,971	47.90	1,618,592	48.07	-0.35
nginx	922,947	18.29	618,437	18.37	-0.41
Microsoft-IIS	707,193	14.02	463,296	13.76	1.86
null	342,431	6.79	229,710	6.82	-0.52
Microsoft-HTTPAPI	219,285	4.35	143,760	4.27	1.79
cloudflare-nginx	91,172	1.81	61,066	1.81	-0.37
IdeaWebServer	49,630	0.98	33,594	1.00	-1.41
LiteSpeed	40,429	0.80	26,524	0.79	1.72
Apache-Coyote	35,674	0.71	23,688	0.70	0.50
BigIP	25,572	0.51	16,572	0.49	2.97
openresty	18,040	0.36	12,085	0.36	-0.39
AkamaiGHost	13,201	0.26	10,157	0.30	-13.27
Flywheel	10,760	0.21	7,260	0.22	-1.10
Tengine	9,441	0.19	6,174	0.18	2.04
lighttpd	7,116	0.14	4,677	0.14	1.53
AmazonS3	5,524	0.11	3,603	0.11	2.31
wts	5,349	0.11	3,771	0.11	-5.34
WWW	5,097	0.10	3,561	0.11	-4.48
CloudFront	4,601	0.09	3,482	0.10	-11.82
Lotus-Domino	4,369	0.09	2,846	0.08	2.44
Varnish	4,206	0.08	2,854	0.08	-1.66
Safedog	3,114	0.06	2,221	0.07	-6.44
squid	2,991	0.06	2,040	0.06	-2.16
Cowboy	2,747	0.05	1,963	0.06	-6.62
EZproxy	2,733	0.05	1,825	0.05	-0.07
IIS	2,719	0.05	2,017	0.06	-10.04
nginx-reuseport	2,688	0.05	1,777	0.05	0.94
kangle	2,441	0.05	1,719	0.05	-5.24
XtendWeb-nginx	1,610	0.03	1,081	0.03	-0.61
linuxOS	1,250	0.02	764	0.02	9.18
Resin	1,248	0.02	830	0.02	0.34
Caddy	1,165	0.02	756	0.02	2.83
Zope	1,156	0.02	769	0.02	0.31
IBM_HTTP_Server	1,149	0.02	799	0.02	-4.04
IceWarp	1,052	0.02	642	0.02	9.35
-	1,022	0.02	673	0.02	1.34
WDaemon	1,018	0.02	645	0.02	5.32
ws-httpd	957	0.02	639	0.02	-0.06
GlassFish	956	0.02	645	0.02	-1.09
III	949	0.02	569	0.02	11.30
YxlinkWAF	928	0.02	642	0.02	-3.54
sffe	887	0.02	640	0.02	-7.51
PWS	866	0.02	567	0.02	1.92
ScreenConnect	849	0.02	533	0.02	6.29
Oracle-Application-Server-10g	812	0.02	552	0.02	-1.84
CHO	760	0.02	526	0.02	-3.58
xServers	757	0.02	705	0.02	-28.35
Destiny	742	0.01	492	0.01	0.64
Bomgar	705	0.01	438	0.01	7.41
Nginx	682	0.01	458	0.01	-0.63
Web	658	0.01	426	0.01	3.07
Icecast	643	0.01	404	0.01	6.21
Rumpus	633	0.01	392	0.01	7.76
Server	612	0.01	410	0.01	-0.39
awselb	596	0.01	396	0.01	0.43
Protected	571	0.01	364	0.01	4.68
ATS	562	0.01	395	0.01	-5.06
Oracle-Application-Server-11g	558	0.01	376	0.01	-0.97
VWebServer	557	0.01	362	0.01	2.68
WebServer	534	0.01	369	0.01	-3.43
redir-httpd	496	0.01	337	0.01	-1.78
yunjiasu-nginx	495	0.01	276	0.01	19.68
Pantheon	486	0.01	428	0.01	-24.23
nginx-rc	483	0.01	278	0.01	15.94
Cougar	459	0.01	293	0.01	4.54
ECAcc	443	0.01	301	0.01	-1.79
AliyunOSS	442	0.01	283	0.01	4.22
CommuniGatePro	433	0.01	277	0.01	4.31
EdgePrism	431	0.01	365	0.01	-21.20
WAF	429	0.01	258	0.01	10.96
nginx-upupw	428	0.01	348	0.01	-17.93
Pagely	426	0.01	299	0.01	-4.92
httpd	420	0.01	268	0.01	4.58
CentOS	418	0.01	256	0.01	8.96
*****************	413	0.01	297	0.01	-7.20
WildFly	395	0.01	255	0.01	3.37
QRATOR	389	0.01	255	0.01	1.80
WowzaStreamingEngine	380	0.01	256	0.01	-0.95
GSYQ	372	0.01	350	0.01	-29.07
Kestrel	357	0.01	205	0.01	16.21
TWebAP	346	0.01	199	0.01	16.03
LTMP	343	0.01	232	0.01	-1.34
OpenBSD	335	0.01	209	0.01	6.96
Werkzeug	333	0.01	214	0.01	3.84
1	332	0.01	236	0.01	-6.12
ECS	329	0.01	229	0.01	-4.13
LRBD-e3b8e93	326	0.01	210	0.01	3.59
Sun	324	0.01	220	0.01	-1.72
Sun-ONE-Web-Server	317	0.01	205	0.01	3.19
cc-web	315	0.01	212	0.01	-0.85
Google	310	0.01	209	0.01	-1.02
ghs	303	0.01	0	0.00	N/A
Oracle-iPlanet-Web-Server	299	0.01	199	0.01	0.27
SonicWALL	293	0.01	185	0.01	5.69
MageStack-MagentoOS	293	0.01	203	0.01	-3.68
gunicorn	291	0.01	205	0.01	-5.27
Footprint	291	0.01	207	0.01	-6.19
Oracle	286	0.01	0	0.00	N/A
360wzws	284	0.01	271	0.01	-30.07
Abyss	276	0.01	194	0.01	-5.06

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.