The Apache Module report is a breakdown of the popular add-on modules to the Apache web servers. All percentages shown are based on web servers running Apache in this month's survey.

Click any module to see detailed graphs and histories.

Module	September 2006 Count	September 2006 %	August 2006 Count	August 2006 %	Growth %
PHP	6,162,824	40.40	6,016,011	40.81	-1.01
mod_ssl	4,225,777	27.70	4,114,324	27.91	-0.75
OpenSSL	4,225,130	27.69	4,113,665	27.90	-0.75
FrontPage	2,795,027	18.32	2,734,224	18.55	-1.22
perl	1,454,531	9.53	1,451,577	9.85	-3.17
mod_log_bytes	1,264,874	8.29	1,225,043	8.31	-0.23
mod_auth_passthrough	1,259,477	8.26	1,219,308	8.27	-0.19
mod_bwlimited	1,258,415	8.25	1,218,436	8.27	-0.20
DAV	647,238	4.24	621,239	4.21	0.67
mod_fastcgi	585,353	3.84	549,649	3.73	2.91
mod_gzip	564,749	3.70	559,703	3.80	-2.50
mod_throttle	532,185	3.49	508,400	3.45	1.15
mod_jk	423,642	2.78	414,981	2.82	-1.35
PHP-CGI	371,295	2.43	351,362	2.38	2.11
mod_python	291,666	1.91	284,146	1.93	-0.81
Python	291,662	1.91	284,142	1.93	-0.81
Perl	247,368	1.62	232,863	1.58	2.65
Ben-SSL	160,638	1.05	154,997	1.05	0.15
mod_auth_pam	116,784	0.77	119,007	0.81	-5.18
rus	102,704	0.67	100,648	0.68	-1.40
ApacheJServ	97,272	0.64	97,727	0.66	-3.82
mod_layout	95,378	0.63	96,337	0.65	-4.33
AuthMySQL	93,857	0.62	94,299	0.64	-3.82
mod_webapp	90,080	0.59	87,399	0.59	-0.41
mod_auth_pam_external	81,818	0.54	85,730	0.58	-7.78
Rewrit	77,033	0.50	76,827	0.52	-3.11
AuthPG	63,584	0.42	61,429	0.42	0.02
mod_jk2	58,734	0.38	63,393	0.43	-10.47
mod_tsunami	57,483	0.38	57,313	0.39	-3.08
SVN	54,247	0.36	46,525	0.32	12.67
Sun-ONE-ASP	48,235	0.32	46,553	0.32	0.12
Resin	39,012	0.26	38,761	0.26	-2.75
JRun	33,712	0.22	31,683	0.21	2.82
mod_watch	31,469	0.21	28,844	0.20	5.42
mod_ruby	17,620	0.12	16,902	0.11	0.73
mod_become	15,565	0.10	15,387	0.10	-2.25
mod_fs	11,497	0.08	14,940	0.10	-25.64
mod_virtual	9,647	0.06	9,393	0.06	-0.76
mod_accel	9,573	0.06	9,430	0.06	-1.91
mod_mono	9,308	0.06	8,655	0.06	3.92
Embperl	7,490	0.05	7,502	0.05	-3.53
mod_choke	7,478	0.05	8,729	0.06	-17.22
mod_accounting	6,552	0.04	5,646	0.04	12.14
mod_ldap_userdir	6,010	0.04	5,936	0.04	-2.17
mod_macro	5,881	0.04	5,932	0.04	-4.20
mod_bwProtect	5,342	0.04	4,785	0.03	7.88
mod_bandwidth2	5,226	0.03	4,703	0.03	7.37
Tomcat	4,643	0.03	4,570	0.03	-1.83
mod_chroot	4,474	0.03	2,873	0.02	50.48
iae_chroot	4,474	0.03	2,873	0.02	50.48
mod_mp3	3,323	0.02	5,269	0.04	-39.06
CSacek	2,470	0.02	2,939	0.02	-18.79
mod_backhand	2,351	0.02	2,200	0.01	3.26
mod_filter	1,772	0.01	1,872	0.01	-8.53
mod_plsql	1,676	0.01	1,689	0.01	-4.11
Midgard	1,503	0.01	1,603	0.01	-9.40
mod_czech	1,445	0.01	1,448	0.01	-3.57
AxKit	1,119	0.01	1,088	0.01	-0.62
mod_oas	757	0.00	777	0.01	-5.86
ihtml	738	0.00	581	0.00	22.74
mod_interchange	705	0.00	939	0.01	-27.45
PowWeb	673	0.00	2,990	0.02	-78.25
SSLeay	595	0.00	596	0.00	-3.53
AuthPostgreSQL	572	0.00	588	0.00	-6.00
mod_front	532	0.00	523	0.00	-1.71
mod_spambot	406	0.00	404	0.00	-2.89
Raven	403	0.00	420	0.00	-7.28
mod_ucam_webauth	314	0.00	306	0.00	-0.84
mod_auth_sspi	176	0.00	177	0.00	-3.92
WebTen	95	0.00	103	0.00	-10.88
PyApache	48	0.00	53	0.00	-12.49
gd	18	0.00	25	0.00	-30.43
mod_script	2	0.00	2	0.00	-3.37

Note: Readers are cautioned that the Growth percentages are based on a module's market share penetration rather than the absolute number of modules we detected. Thus, it is possible for the number of modules to increase, while the growth is actually a negative value.

Looking for a specific module? Check the module registry at modules.apache.org

Note: OpenSSL, BSafe, and SSLeay aren't true modules in their own right; rather they are required for a number of SSL enabling modules, and will often have their signature string imbedded into the server string, thus allowing us to determine which of them is being used. Rather than separate this out into a separate report, we've included them here.