Enable gzip compression on Apache HTTP

mod_deflate is a module for Apache which compresses the content of each http request before sending it to the client decreasing the page load time for each request.

Proceed as follows to enable gzip compression

Note: Tested on CentOS 5.x, 6.x

1. Activate mod_filter in Apache on CentOS

2. Add to the httpd.conf

### Gzip compression
#
SetOutputFilter DEFLATE
FilterDeclare gzip CONTENT_SET
FilterProvider gzip inflate req=Accept-Encoding !$gzip
FilterChain gzip
#
#

3. Restart Apache

# service httpd graceful

Further reading

– Module mod_filter