Speed up WordPress by Gzip Compression from .Htaccess and php flush

Abhishek Ghosh

By Abhishek Ghosh March 22, 2011 5:16 am Updated on March 22, 2011

Speed up WordPress by Gzip Compression from .Htaccess and php flush

Before describing the manipulation to be done to accelerate the speed of your site and reduce loading times, we want to clarify that some of these tips work well for sites that are not under WordPress.

Google said that the speed of page loading was a factor to consider in the SEO, then we should better optimize it.

Open to edit your .Htaccess file (take a backup first). For us, using online FTP works great to do the job. Add the following codes to your .Htaccess file before the starting of your WordPress rewrite rules:

 <IfModule mod_gzip.c>
 mod_gzip_on Yes
 mod_gzip_dechunk Yes
 mod_gzip_item_include file .(html?|xml|txt|css|js|php|pl)$
 mod_gzip_item_include handler ^cgi-script$
 mod_gzip_item_include mime ^text/.*
 mod_gzip_item_include mime ^application/x-javascript.*
 mod_gzip_item_exclude mime ^image/.*
 mod_gzip_item_exclude rspheader ^Content-Encoding:.*gzip.*
 </IfModule>
# END GZIP
# DEFLATE compression
 <IfModule mod_deflate.c>
 # Set compression for: html,txt,xml,js,css
 AddOutputFilterByType DEFLATE text/html text/plain text/xml application/xml application/xhtml+xml text/javascript text/css application/x-javascript
 # Deactivate compression for buggy browsers
 BrowserMatch ^Mozilla/4 gzip-only-text/html
 BrowserMatch ^Mozilla/4.0[678] no-gzip
 BrowserMatch bMSIE !no-gzip !gzip-only-text/html
 # Set header information for proxies
 Header append Vary User-Agent
 </IfModule>
 # END DEFLATE
<FilesMatch ".js$">
AddHandler application/x-httpd-php .js
php_value default_mimetype "text/javascript"
</FilesMatch>
<FilesMatch ".css$">
AddHandler application/x-httpd-php .css
php_value default_mimetype "text/css"
</FilesMatch>
<FilesMatch ".(htm|html|shtml)$">
AddHandler application/x-httpd-php .html
php_value default_mimetype "text/html"
</FilesMatch>
## EXPIRES CACHING ##
<IfModule mod_expires.c>
ExpiresActive On
ExpiresByType image/jpg "access 1 year"
ExpiresByType image/jpeg "access 1 year"
ExpiresByType image/gif "access 1 year"
ExpiresByType image/png "access 1 year"
ExpiresByType text/css "access 1 month"
ExpiresByType application/pdf "access 1 month"
ExpiresByType text/x-javascript "access 1 month"
ExpiresByType application/x-shockwave-flash "access 1 month"
ExpiresByType image/x-icon "access 1 year"
ExpiresDefault "access 2 days"
</IfModule>
## EXPIRES CACHING ##
<ifModule mod_headers.c>
<filesMatch "\.(ico|pdf|flv|jpg|jpeg|png|gif|swf)$">
Header set Cache-Control "max-age=2592000, public"
</filesMatch>
<filesMatch "\.(css)$">
Header set Cache-Control "max-age=604800, public"
</filesMatch>
<filesMatch "\.(js)$">
Header set Cache-Control "max-age=216000, private"
</filesMatch>
<filesMatch "\.(xml|txt)$">
Header set Cache-Control "max-age=216000, public, must-revalidate"
</filesMatch>
<filesMatch "\.(html|htm|php)$">
Header set Cache-Control "max-age=300, private, must-revalidate"
</filesMatch>
</ifModule>

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mod_gzip_on Yes

mod_gzip_dechunk Yes

mod_gzip_item_include file .(html?|xml|txt|css|js|php|pl)$

mod_gzip_item_include handler ^cgi-script$

mod_gzip_item_include mime ^text/.*

mod_gzip_item_include mime ^application/x-javascript.*

mod_gzip_item_exclude mime ^image/.*

mod_gzip_item_exclude rspheader ^Content-Encoding:.*gzip.*

</IfModule>

# END GZIP

# DEFLATE compression

# Set compression for: html,txt,xml,js,css

AddOutputFilterByType DEFLATE text/html text/plain text/xml application/xml application/xhtml+xml text/javascript text/css application/x-javascript

# Deactivate compression for buggy browsers

BrowserMatch ^Mozilla/4 gzip-only-text/html

BrowserMatch ^Mozilla/4.0[678] no-gzip

BrowserMatch bMSIE !no-gzip !gzip-only-text/html

# Set header information for proxies

Header append Vary User-Agent

</IfModule>

# END DEFLATE

AddHandler application/x-httpd-php .js

php_value default_mimetype "text/javascript"

</FilesMatch>

AddHandler application/x-httpd-php .css

php_value default_mimetype "text/css"

</FilesMatch>

AddHandler application/x-httpd-php .html

php_value default_mimetype "text/html"

</FilesMatch>

## EXPIRES CACHING ##

ExpiresActive On

ExpiresByType image/jpg "access 1 year"

ExpiresByType image/jpeg "access 1 year"

ExpiresByType image/gif "access 1 year"

ExpiresByType image/png "access 1 year"

ExpiresByType text/css "access 1 month"

ExpiresByType application/pdf "access 1 month"

ExpiresByType text/x-javascript "access 1 month"

ExpiresByType application/x-shockwave-flash "access 1 month"

ExpiresByType image/x-icon "access 1 year"

ExpiresDefault "access 2 days"

</IfModule>

## EXPIRES CACHING ##

Header set Cache-Control "max-age=2592000, public"

</filesMatch>

Header set Cache-Control "max-age=604800, public"

</filesMatch>

Header set Cache-Control "max-age=216000, private"

</filesMatch>

Header set Cache-Control "max-age=216000, public, must-revalidate"

</filesMatch>

Header set Cache-Control "max-age=300, private, must-revalidate"

</filesMatch>

</ifModule>

Update: Unfortunately, the if module syntax is not showing up properly. So, here is the file for you, just click to open it.

In case mess up, just delete the codes and save it or replace with your backup file.

---

You can read this interesting and useful topic to optimize the pageload speed from Yahoo. It really nicely written. You can implement PHP buffer flush to load very quickly. We used both of this methods to make this website load faster. For implementing PHP buffer flush; add this in your header . php ( just after closing of head tag) file via Theme editor:

//<?php flush(); ?>

1	//<?php flush(); ?>

Remove the commenting ( // before < ) to get working php. This will decrease the waiting time (particularly if the server is long away from the visitor) with a blank screen on browser waiting for full page to load. Signature

Speed up WordPress by Gzip Compression from .Htaccess and php flush

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