You are viewing an outdated report. The latest version of this report was published on January 1st, 2021

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) 2,160,902 hostnames, but only 1,177,231 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	August 2000 Count	August 2000 %	July 2000 Count	July 2000 %	Growth %
Apache	544,166	46.22	561,016	46.72	-1.07
Microsoft-IIS	384,923	32.70	397,372	33.10	-1.20
Netscape-Enterprise	42,454	3.61	44,456	3.70	-2.60
thttpd	39,363	3.34	39,595	3.30	1.39
Rapidsite	34,339	2.92	35,456	2.95	-1.22
null	17,130	1.46	8,574	0.71	103.77
WebSitePro	12,728	1.08	13,477	1.12	-3.68
Stronghold	9,954	0.85	10,370	0.86	-2.10
Lotus-Domino	9,593	0.81	9,873	0.82	-0.90
WebSTAR	8,633	0.73	9,106	0.76	-3.31
NCSA	6,962	0.59	3,775	0.31	88.10
Netscape-FastTrack	6,660	0.57	7,179	0.60	-5.38
WN	5,969	0.51	6,154	0.51	-1.07
BESTWWWD	5,309	0.45	5,208	0.43	3.97
Zeus	2,843	0.24	2,908	0.24	-0.29
Roxen·Challenger	2,787	0.24	2,971	0.25	-4.32
Apache-1.3.4	2,560	0.22	2,626	0.22	-0.57
CERN	2,235	0.19	2,408	0.20	-5.34
Netscape-Communications	2,188	0.19	2,343	0.20	-4.76
Red	1,544	0.13	1,561	0.13	0.88
AppleShareIP	1,311	0.11	1,370	0.11	-2.40
Netscape-Commerce	1,293	0.11	1,424	0.12	-7.39
Novell-HTTP-Server	1,241	0.11	0	0.00	N/A
FileMakerPro	1,104	0.09	1,121	0.09	0.45
Oracle_Web_Listener	1,090	0.09	1,124	0.09	-1.09
mod_perl	1,067	0.09	1,210	0.10	-10.06
WebSite	994	0.08	1,071	0.09	-5.34
ApacheFP	899	0.08	950	0.08	-3.48
OSU	813	0.07	867	0.07	-4.36
HPWB	788	0.07	791	0.07	1.61
Domino-Go-Webserver	785	0.07	814	0.07	-1.64
Affinity-Apache	650	0.06	683	0.06	-2.94
Apache-AdvancedExtranetServer	645	0.05	441	0.04	49.17
Commerce-Builder	567	0.05	593	0.05	-2.48
NetWare-Enterprise-Web-Server	560	0.05	492	0.04	16.09
IBM-HTTP-Server	558	0.05	580	0.05	-1.88
FirstClass	554	0.05	568	0.05	-0.52
NaviServer	545	0.05	575	0.05	-3.33
Purveyor	522	0.04	540	0.04	-1.41
IBM_HTTP_Server	476	0.04	468	0.04	3.74
QuidProQuo	473	0.04	342	0.03	41.06
SWS-1.0	469	0.04	475	0.04	0.70
Xitami	447	0.04	469	0.04	-2.79
Microsoft-PWS	443	0.04	463	0.04	-2.41
SAMBAR	430	0.04	451	0.04	-2.76
ApacheSSL	423	0.04	444	0.04	-2.83
MacHTTP	419	0.04	461	0.04	-7.30
JavaWebServer	418	0.04	431	0.04	-1.08
IdeaWebServer	407	0.03	405	0.03	2.50
Microsoft-PWS-95	405	0.03	441	0.04	-6.33
Microsoft-Internet-Information-Server	400	0.03	450	0.04	-9.34
Worldgroup	381	0.03	398	0.03	-2.36
Ipswitch-IMail	367	0.03	341	0.03	9.77
Apache-NeoWebScript	321	0.03	341	0.03	-3.99
Lasso	310	0.03	310	0.03	1.99
OmniHTTPd	282	0.02	286	0.02	0.57
MACOS_Personal_Websharing	273	0.02	275	0.02	1.25
IBM-ICS	267	0.02	292	0.02	-6.74
Squid	260	0.02	567	0.05	-53.23
Ultraseek	253	0.02	258	0.02	0.02
Oracle_Web_listener3.0.2.0.0	245	0.02	267	0.02	-6.41
AiNET	241	0.02	248	0.02	-0.89
Sun_WebServer	223	0.02	226	0.02	0.64
Open-Market-Secure-WebServer	221	0.02	238	0.02	-5.29
Roxen	188	0.02	195	0.02	-1.67
PowerWeb	185	0.02	197	0.02	-4.22
Statistics	184	0.02	187	0.02	0.36
FrontPage-PWS32	170	0.01	0	0.00	N/A
eShare-Expressions	169	0.01	177	0.01	-2.62
Powered	168	0.01	175	0.01	-2.09
ConcentricHost-Ashurbanipal	165	0.01	166	0.01	1.38
Mini-Proxy	146	0.01	166	0.01	-10.30
Apache-SSL-US	144	0.01	158	0.01	-7.05
Oracle_Web_listener2.1	140	0.01	156	0.01	-8.47
IgServ	139	0.01	143	0.01	-0.86
Web	129	0.01	84	0.01	56.63
Oracle_Web_listener3.0	126	0.01	134	0.01	-4.10
CommerceServer400	117	0.01	122	0.01	-2.19
Oracle_Web_Listener_NT_2.1.0.3.1	116	0.01	126	0.01	-6.10
AnWeb	113	0.01	118	0.01	-2.33
Zope	110	0.01	96	0.01	16.87
NetPresenz	106	0.01	116	0.01	-6.80
Lotus	106	0.01	125	0.01	-13.51
David-WebBox	106	0.01	159	0.01	-32.01
Apache-EUnet	106	0.01	108	0.01	0.10
Web_Server_4D	105	0.01	167	0.01	-35.87
IBM	98	0.01	101	0.01	-1.04
HTTPS	95	0.01	106	0.01	-8.59
WebLogic	94	0.01	79	0.01	21.36
Unknown	94	0.01	93	0.01	3.09
AppleWSE	94	0.01	100	0.01	-4.13
Q100	93	0.01	94	0.01	0.91
InfoWest.COM-Custom-Apache	93	0.01	99	0.01	-4.19
Oracle_Web_listener3.0.1	80	0.01	87	0.01	-6.21
CONNECTnet[welp3]	79	0.01	82	0.01	-1.74
Oracle_Web_listener2.0	76	0.01	81	0.01	-4.30
Alibaba	74	0.01	81	0.01	-6.82
HTTP	72	0.01	76	0.01	-3.38
Oracle_Web_listener3.0.1.0.0	71	0.01	80	0.01	-9.48
MHttpd	71	0.01	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.