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Speed Up Website through Gzip Compression

gzip Compression
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Most of the users having issue in  website loading  or load time is very high .Here I am explaining one method to speed up your website. There are several methods to speed up website one of them is and it is most popular method to load fast by compress page size of your site .

Now these days majority of website use  compression , delivering the content at latest browsers , which support compression. It is useful when we use to html text , js , javascript like images already compressed.So it will  bandwidth saving and then website get more responsive.

Here I am explaining how to setup gzip compression  through .htaccess . One module Mod_deflate is an apache module that will be used to compress data using gzip compression

Check mod_deflate is installed and enabled in apache

Mod_deflate apache module will installed by default in apache server . Below is the command to check mod_deflate is installed and enabled .

For Debian Based System :

 apache2ctl -t -D DUMP_MODULES | grep  mod_deflate

For Linux ( CentOS/Red Hat ) :

httpd -t -D DUMP_MODULES | grep deflate_module


Output will be like below.

deflate_module (shared)    Syntax OK

How to use mod_deflate ?

To use mod_deflate ,  I am adding few lines in .htaccess file .

Enabling  mod deflate ( Gzip ) Compression in .htaccess

# Put filters  AddOutputFilterByType DEFLATE text/plain  AddOutputFilterByType DEFLATE text/html  AddOutputFilterByType DEFLATE text/xml  AddOutputFilterByType DEFLATE text/css  AddOutputFilterByType DEFLATE application/xml  AddOutputFilterByType DEFLATE application/xhtml+xml  AddOutputFilterByType DEFLATE application/rss+xml  AddOutputFilterByType DEFLATE application/javascript  AddOutputFilterByType DEFLATE application/x-javascript  AddOutputFilterByType DEFLATE application/x-httpd-php  AddOutputFilterByType DEFLATE application/x-httpd-fastphp  AddOutputFilterByType DEFLATE image/svg+xml    # Drop some browsers which can create problem.  BrowserMatch ^Mozilla/4 gzip-only-text/html  BrowserMatch ^Mozilla/4\.0[678] no-gzip  BrowserMatch \bMSI[E] !no-gzip !gzip-only-text/html    # Make sure proxies don't deliver the wrong content  Header append Vary User-Agent env=!dont-vary

How to test if Gzip compression or mod_deflate is working ?

There are so many sites online which provide to help test whether mod_deflate or gzip compression is working or not .Find below one of the online test url.


Enter the URL and click on the “Test” button.Below is the example of online test snapshot.

gzip Compression

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Sachin is Red Hat Linux Certified and Freelance Contributor and Love to work and write on Open Source and Cloud Technologies .