You are viewing an outdated report. The latest version of this report was published on May 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) 2,079,742 hostnames, but only 1,181,336 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 2000 Count	March 2000 %	February 2000 Count	February 2000 %	Growth %
Apache	542,468	45.92	520,406	45.86	0.13
Microsoft-IIS	368,431	31.19	353,511	31.15	0.11
Netscape-Enterprise	46,547	3.94	45,652	4.02	-2.06
thttpd	44,986	3.81	38,738	3.41	11.55
Rapidsite	34,733	2.94	32,182	2.84	3.67
null	17,252	1.46	16,765	1.48	-1.15
WebSitePro	14,984	1.27	15,266	1.35	-5.72
Stronghold	10,860	0.92	10,627	0.94	-1.84
NCSA	9,442	0.80	9,791	0.86	-7.37
Lotus-Domino	9,312	0.79	8,934	0.79	0.12
WebSTAR	9,070	0.77	8,946	0.79	-2.61
Netscape-FastTrack	8,139	0.69	8,185	0.72	-4.48
WN	6,330	0.54	6,447	0.57	-5.69
BESTWWWD	6,106	0.52	6,139	0.54	-4.46
Roxen·Challenger	3,052	0.26	2,996	0.26	-2.15
CERN	2,969	0.25	3,081	0.27	-7.43
Netscape-Communications	2,846	0.24	2,949	0.26	-7.30
Zeus	2,658	0.22	2,343	0.21	8.97
Apache-1.3.4	2,575	0.22	2,451	0.22	0.92
Red	1,893	0.16	1,971	0.17	-7.74
Netscape-Commerce	1,760	0.15	1,857	0.16	-8.96
Novell-HTTP-Server	1,618	0.14	1,612	0.14	-3.59
mod_perl	1,367	0.12	1,382	0.12	-4.99
WebSite	1,308	0.11	1,353	0.12	-7.14
AppleShareIP	1,257	0.11	1,169	0.10	3.29
FileMakerPro	1,109	0.09	1,169	0.10	-8.87
ApacheFP	1,052	0.09	1,048	0.09	-3.58
Oracle_Web_Listener	912	0.08	914	0.08	-4.15
OSU	912	0.08	931	0.08	-5.90
Domino-Go-Webserver	826	0.07	812	0.07	-2.29
Commerce-Builder	818	0.07	771	0.07	1.91
NaviServer	721	0.06	717	0.06	-3.41
Affinity-Apache	714	0.06	709	0.06	-3.27
Microsoft-Internet-Information-Server	623	0.05	676	0.06	-11.47
MacHTTP	580	0.05	600	0.05	-7.14
QuidProQuo	578	0.05	585	0.05	-5.09
Microsoft-PWS-95	554	0.05	549	0.05	-3.07
SWS-1.0	543	0.05	549	0.05	-4.99
HPWB	535	0.05	550	0.05	-6.56
FirstClass	533	0.05	491	0.04	4.27
Purveyor	531	0.04	608	0.05	-16.11
Microsoft-PWS	524	0.04	522	0.05	-3.57
ApacheSSL	497	0.04	491	0.04	-2.77
Worldgroup	491	0.04	500	0.04	-5.67
SAMBAR	480	0.04	482	0.04	-4.34
IBM-HTTP-Server	465	0.04	426	0.04	4.85
Xitami	456	0.04	470	0.04	-6.80
JavaWebServer	431	0.04	416	0.04	-0.48
Apache-NeoWebScript	375	0.03	378	0.03	-4.71
AiNET	361	0.03	340	0.03	1.99
IBM-ICS	337	0.03	344	0.03	-5.90
OmniHTTPd	279	0.02	289	0.03	-7.27
IBM_HTTP_Server	279	0.02	246	0.02	8.94
Lasso	274	0.02	253	0.02	4.03
Oracle_Web_listener3.0.2.0.0	267	0.02	271	0.02	-5.36
HomeNet	264	0.02	247	0.02	2.67
Squid	250	0.02	241	0.02	-0.36
Open-Market-Secure-WebServer	250	0.02	252	0.02	-4.71
MACOS_Personal_Websharing	250	0.02	228	0.02	5.33
Ipswitch-IMail	235	0.02	185	0.02	22.02
Ultraseek	221	0.02	283	0.02	-24.99
FrontPage-PWS32	220	0.02	222	0.02	-4.81
Sun_WebServer	212	0.02	205	0.02	-0.66
ConcentricHost-Ashurbanipal	207	0.02	212	0.02	-6.21
Mini-Proxy	206	0.02	216	0.02	-8.39
Apache-EUnet	206	0.02	204	0.02	-3.00
PowerWeb	204	0.02	228	0.02	-14.05
ODN	194	0.02	173	0.02	7.72
eShare-Expressions	188	0.02	202	0.02	-10.60
Oracle_Web_listener2.1	181	0.02	206	0.02	-15.60
Web_Server_4D	165	0.01	157	0.01	0.95
Apache-SSL-US	164	0.01	170	0.01	-7.33
Statistics	163	0.01	163	0.01	-3.94
IgServ	159	0.01	162	0.01	-5.72
Alibaba	152	0.01	166	0.01	-12.04
Powered	149	0.01	135	0.01	6.02
Oracle_Web_listener3.0	148	0.01	158	0.01	-10.02
Lotus	142	0.01	149	0.01	-8.46
HTTPS	132	0.01	134	0.01	-5.38
NetPresenz	125	0.01	134	0.01	-10.39
CommerceServer400	124	0.01	136	0.01	-12.42
AppleWSE	122	0.01	121	0.01	-3.15
Oracle_Web_Listener_NT_2.1.0.3.1	113	0.01	133	0.01	-18.39
David-WebBox	110	0.01	110	0.01	-3.94
AnWeb	106	0.01	97	0.01	4.97
Oracle_Web_listener3.0.1.0.0	105	0.01	110	0.01	-8.31
IBM	99	0.01	93	0.01	2.25
NetWare-Enterprise-Web-Server	97	0.01	0	0.00	N/A
CONNECTnet[welp3]	97	0.01	100	0.01	-6.82
Roxen	96	0.01	120	0.01	-23.15
GoServe	92	0.01	93	0.01	-4.98
Oracle_Web_listener3.0.1	91	0.01	97	0.01	-9.88
Oracle_Web_listener2.0	88	0.01	114	0.01	-25.85
InfoWest.COM-Custom-Apache	87	0.01	86	0.01	-2.83
WebTopia	77	0.01	76	0.01	-2.68
MHttpd	74	0.01	71	0.01	0.12
Web	73	0.01	89	0.01	-21.21
ConferenceRoom	71	0.01	91	0.01	-25.05
Spinner	68	0.01	0	0.00	N/A
TopNet	67	0.01	65	0.01	-0.99

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.