Have you actually enabled gzip in your httpd.conf with 'mod_gzip_on Yes'?
Here's my full mod_gzip bit as an example:
<IfModule mod_gzip.c>
mod_gzip_on Yes
mod_gzip_minimum_file_size 300
mod_gzip_maximum_file_size 0
mod_gzip_maximum_inmem_size 100000
mod_gzip_item_include file \.htm$
mod_gzip_item_include file \.html$
mod_gzip_item_include file \.jsp$
mod_gzip_item_include file \.php$
mod_gzip_item_include file \.pl$
mod_gzip_item_include file \.cgi$
mod_gzip_item_include file \.tpl$
mod_gzip_item_include mime text/.*
mod_gzip_item_include mime ^application/x-httpd-php
mod_gzip_item_include mime httpd/unix-directory
mod_gzip_item_include handler ^perl-script$
mod_gzip_item_include handler ^server-status$
mod_gzip_item_include handler ^server-info$
mod_gzip_item_exclude file \.css$
mod_gzip_item_exclude file \.js$
mod_gzip_item_exclude mime ^image/.*
mod_gzip_item_exclude file adcycle\.cgi$
mod_gzip_dechunk yes
mod_gzip_temp_dir /var/tmp
mod_gzip_keep_workfiles No
mod_gzip_can_negotiate yes
</IfModule>
Here's my full mod_gzip bit as an example:
Code:
<IfModule mod_gzip.c>
mod_gzip_on Yes
mod_gzip_minimum_file_size 300
mod_gzip_maximum_file_size 0
mod_gzip_maximum_inmem_size 100000
mod_gzip_item_include file \.htm$
mod_gzip_item_include file \.html$
mod_gzip_item_include file \.jsp$
mod_gzip_item_include file \.php$
mod_gzip_item_include file \.pl$
mod_gzip_item_include file \.cgi$
mod_gzip_item_include file \.tpl$
mod_gzip_item_include mime text/.*
mod_gzip_item_include mime ^application/x-httpd-php
mod_gzip_item_include mime httpd/unix-directory
mod_gzip_item_include handler ^perl-script$
mod_gzip_item_include handler ^server-status$
mod_gzip_item_include handler ^server-info$
mod_gzip_item_exclude file \.css$
mod_gzip_item_exclude file \.js$
mod_gzip_item_exclude mime ^image/.*
mod_gzip_item_exclude file adcycle\.cgi$
mod_gzip_dechunk yes
mod_gzip_temp_dir /var/tmp
mod_gzip_keep_workfiles No
mod_gzip_can_negotiate yes
</IfModule>